this repo has no description
Added Apple libutil, fix libcxx rpath
+4669
-7
+1
etc/dylib.conf
+1
etc/dylib.conf
+1
src/CMakeLists.txt
+1
src/CMakeLists.txt
+2
-2
src/dyld/CMakeLists.txt
+2
-2
src/dyld/CMakeLists.txt
···
29
29
30
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add_executable(dyld-bin ${dyld_SRCS})
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set_target_properties(dyld-bin PROPERTIES OUTPUT_NAME dyld${SUFFIX})
32
-
target_link_libraries(dyld-bin dyld util mach-o)
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+
target_link_libraries(dyld-bin dyld darling-util mach-o)
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#if (NOT DEFINED SUFFIX OR SUFFIX STREQUAL "64")
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add_executable(dyldd dyldd.cpp)
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-
target_link_libraries(dyldd dyld util mach-o)
36
+
target_link_libraries(dyldd dyld darling-util mach-o)
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install(TARGETS dyldd DESTINATION bin)
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#endif (NOT DEFINED SUFFIX OR SUFFIX STREQUAL "64")
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39
+1
-1
src/libc/locale/FreeBSD/mbtowc.c
+1
-1
src/libc/locale/FreeBSD/mbtowc.c
+1
-1
src/libdyld/CMakeLists.txt
+1
-1
src/libdyld/CMakeLists.txt
···
57
57
SET(CMAKE_INSTALL_RPATH_USE_LINK_PATH TRUE)
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add_library(dyld SHARED ${dyld_SRCS})
60
-
target_link_libraries(dyld -ldl -lpthread mach-o util)
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+
target_link_libraries(dyld -ldl -lpthread mach-o darling-util)
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install(TARGETS dyld DESTINATION lib${SUFFIX}/darling)
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+1
-1
src/libmach-o/CMakeLists.txt
+1
-1
src/libmach-o/CMakeLists.txt
···
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23
add_library(mach-o SHARED ${mach-o_SRCS})
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set_target_properties(mach-o PROPERTIES VERSION 1.0.0 SOVERSION 1.0)
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set_target_properties(mach-o PROPERTIES COMPILE_FLAGS "-fvisibility=hidden")
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-
target_link_libraries(mach-o -ldl -lpthread util)
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+
target_link_libraries(mach-o -ldl -lpthread darling-util)
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install(TARGETS mach-o DESTINATION "lib${SUFFIX}/darling")
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29
+36
src/libutil/CMakeLists.txt
+36
src/libutil/CMakeLists.txt
···
1
+
project(libutil)
2
+
3
+
cmake_minimum_required(VERSION 2.4.0)
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+
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if(COMMAND cmake_policy)
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cmake_policy(SET CMP0003 NEW)
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endif(COMMAND cmake_policy)
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+
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+
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set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -nostdinc -D__DARWIN_UNIX03 -fPIC -w")
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set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -nostdinc -nostdinc++ -D__DARWIN_UNIX03 -fPIC -w")
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set(CMAKE_SHARED_LINKER_FLAGS "${CMAKE_SHARED_LINKER_FLAGS} -nostdlib -Wl,--unresolved-symbols=ignore-all -Wl,--version-script=${DARLING_TOP_DIRECTORY}/darwin.map")
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include_directories(${CMAKE_CURRENT_SOURCE_DIR})
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include_directories(${DARLING_TOP_DIRECTORY}/src/libc/include)
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include_directories(${DARLING_TOP_DIRECTORY}/src/external/libcxx/include)
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+
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set(util_SRCS
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+
ExtentManager.cpp
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+
getmntopts.c
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+
humanize_number.c
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+
pidfile.c
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+
realhostname.c
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+
reexec_to_match_kernel.c
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+
trimdomain.c
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+
tzlink.c
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+
wipefs.cpp
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)
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+
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SET(CMAKE_INSTALL_RPATH "${CMAKE_INSTALL_PREFIX}/lib${SUFFIX}/darling")
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SET(CMAKE_BUILD_WITH_INSTALL_RPATH TRUE)
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SET(CMAKE_INSTALL_RPATH_USE_LINK_PATH TRUE)
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+
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add_library(util SHARED ${util_SRCS})
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target_link_libraries(util system)
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+
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install(TARGETS util DESTINATION lib${SUFFIX}/darling)
+305
src/libutil/ExtentManager.cpp
+305
src/libutil/ExtentManager.cpp
···
1
+
/*
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* Copyright (c) 2008-2009,2011 Apple Inc. All rights reserved.
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+
*
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* @APPLE_LICENSE_HEADER_START@
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*
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+
* This file contains Original Code and/or Modifications of Original Code
7
+
* as defined in and that are subject to the Apple Public Source License
8
+
* Version 2.0 (the 'License'). You may not use this file except in
9
+
* compliance with the License. Please obtain a copy of the License at
10
+
* http://www.opensource.apple.com/apsl/ and read it before using this
11
+
* file.
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+
*
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+
* The Original Code and all software distributed under the License are
14
+
* distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
15
+
* EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
16
+
* INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
17
+
* FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
18
+
* Please see the License for the specific language governing rights and
19
+
* limitations under the License.
20
+
*
21
+
* @APPLE_LICENSE_HEADER_END@
22
+
*/
23
+
//
24
+
// ExtentManager.cpp
25
+
//
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+
27
+
#include "ExtentManager.h"
28
+
29
+
void
30
+
ExtentManager::Init(uint32_t theBlockSize, uint32_t theNativeBlockSize, off_t theTotalBytes)
31
+
{
32
+
blockSize = theBlockSize;
33
+
nativeBlockSize = theNativeBlockSize;
34
+
totalBytes = theTotalBytes;
35
+
totalBlocks = howmany(totalBytes, blockSize);
36
+
37
+
// add sentry empty extents at both sides so empty partition doesn't need to be handled specially
38
+
AddBlockRangeExtent(0, 0);
39
+
AddBlockRangeExtent(totalBlocks, 0);
40
+
}
41
+
42
+
void
43
+
ExtentManager::MergeExtent(const ExtentInfo &a, const ExtentInfo &b, ExtentInfo *c)
44
+
{
45
+
// merge ext into *curIt
46
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c->blockAddr = min(a.blockAddr, b.blockAddr);
47
+
c->numBlocks = max(a.blockAddr + a.numBlocks, b.blockAddr + b.numBlocks) - c->blockAddr;
48
+
}
49
+
50
+
void
51
+
ExtentManager::AddBlockRangeExtent(off_t blockAddr, off_t numBlocks)
52
+
{
53
+
struct ExtentInfo ext, newExt;
54
+
ListExtIt curIt, newIt;
55
+
bool merged = false;
56
+
57
+
// make the range a valid range
58
+
if ((blockAddr > totalBlocks) || (blockAddr + numBlocks < 0)) { // totally out of range, do nothing
59
+
return;
60
+
}
61
+
if (blockAddr < 0) {
62
+
numBlocks = blockAddr + numBlocks;
63
+
blockAddr = 0;
64
+
}
65
+
if (blockAddr + numBlocks > totalBlocks) {
66
+
numBlocks = totalBlocks - blockAddr;
67
+
}
68
+
69
+
ext.blockAddr = blockAddr;
70
+
ext.numBlocks = numBlocks;
71
+
72
+
for (curIt = extentList.begin(); curIt != extentList.end(); curIt++) {
73
+
if (BeforeExtent(ext, *curIt))
74
+
break;
75
+
if (!BeforeExtent(*curIt, ext)) { // overlapped extents
76
+
MergeExtent(ext, *curIt, &newExt);
77
+
*curIt = newExt;
78
+
merged = true;
79
+
break;
80
+
}
81
+
}
82
+
83
+
// insert ext before curIt
84
+
if (!merged) {
85
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curIt = extentList.insert(curIt, ext); // throws bad_alloc when out of memory
86
+
}
87
+
88
+
// merge the extents
89
+
newIt = curIt;
90
+
curIt = extentList.begin();
91
+
while (curIt != extentList.end()) {
92
+
if (curIt == newIt || BeforeExtent(*curIt, *newIt)) { // curIt is before newIt
93
+
curIt++;
94
+
continue;
95
+
}
96
+
if (BeforeExtent(*newIt, *curIt)) { // curIt is after newIt now, we are done
97
+
break;
98
+
}
99
+
// merge the two extents
100
+
MergeExtent(*curIt, *newIt, &newExt);
101
+
*newIt = newExt;
102
+
curIt = extentList.erase(curIt);
103
+
}
104
+
// printf("After %s(%lld, %lld)\n", __func__, blockAddr, numBlocks); DebugPrint();
105
+
} // ExtentManager::AddBlockRangeExtent
106
+
107
+
void
108
+
ExtentManager::RemoveBlockRangeExtent(off_t blockAddr, off_t numBlocks)
109
+
{
110
+
struct ExtentInfo ext, newExt;
111
+
ListExtIt curIt;
112
+
113
+
ext.blockAddr = blockAddr;
114
+
ext.numBlocks = numBlocks;
115
+
116
+
curIt = extentList.begin();
117
+
while (curIt != extentList.end()) {
118
+
if (BeforeExtent(*curIt, ext)) {
119
+
curIt++;
120
+
continue;
121
+
}
122
+
if (BeforeExtent(ext, *curIt)) // we are done
123
+
break;
124
+
125
+
//
126
+
// If we get here, the input extent and *curIt have at least one block in common.
127
+
// That is, they overlap in some way. Thus *curIt needs to change, be removed,
128
+
// or be split into two non-contiguous extents.
129
+
//
130
+
131
+
if (curIt->blockAddr >= ext.blockAddr &&
132
+
curIt->blockAddr + curIt->numBlocks <= ext.blockAddr + ext.numBlocks) {
133
+
//
134
+
// The input extent totally contains *curIt, so remove *curIt.
135
+
//
136
+
curIt = extentList.erase(curIt);
137
+
} else if (curIt->blockAddr < ext.blockAddr &&
138
+
curIt->blockAddr + curIt->numBlocks > ext.blockAddr + ext.numBlocks) {
139
+
//
140
+
// The input extent does not include the start of *curIt, nor the end of *curIt,
141
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// so split *curIt into two extents.
142
+
//
143
+
newExt.blockAddr = ext.blockAddr + ext.numBlocks;
144
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newExt.numBlocks = curIt->blockAddr + curIt->numBlocks - newExt.blockAddr;
145
+
curIt->numBlocks = ext.blockAddr - curIt->blockAddr;
146
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curIt++;
147
+
extentList.insert(curIt, newExt); // throws bad_alloc when out of memory
148
+
curIt++;
149
+
} else {
150
+
//
151
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// The input extent contains either the start or the end of *curIt, but not both.
152
+
// The remove will leave either the end or the start of *curIt (respectively) and
153
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// not change the number of extents in the list.
154
+
//
155
+
if (curIt->blockAddr >= ext.blockAddr) {
156
+
//
157
+
// Remove the start of *curIt by updating both its starting block and size.
158
+
//
159
+
assert(curIt->blockAddr + curIt->numBlocks > ext.blockAddr + ext.numBlocks);
160
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newExt.blockAddr = ext.blockAddr + ext.numBlocks;
161
+
newExt.numBlocks = curIt->blockAddr + curIt->numBlocks - newExt.blockAddr;
162
+
*curIt = newExt;
163
+
} else {
164
+
//
165
+
// Remove the end of *curIt by updating its size.
166
+
//
167
+
curIt->numBlocks = ext.blockAddr - curIt->blockAddr;
168
+
}
169
+
curIt++;
170
+
}
171
+
}
172
+
//printf("After %s(%lld, %lld)\n", __func__, blockAddr, numBlocks); DebugPrint();
173
+
}
174
+
175
+
void
176
+
ExtentManager::AddByteRangeExtent(off_t byteAddr, off_t numBytes)
177
+
{
178
+
off_t blockAddr = byteAddr / blockSize;
179
+
off_t blockAddrOfLastByte = (byteAddr + numBytes - 1) / blockSize;
180
+
off_t numBlocks = blockAddrOfLastByte - blockAddr + 1;
181
+
AddBlockRangeExtent(blockAddr, numBlocks);
182
+
}
183
+
184
+
void
185
+
ExtentManager::DebugPrint()
186
+
{
187
+
ListExtIt it;
188
+
189
+
for (it = extentList.begin(); it != extentList.end(); it++) {
190
+
printf("[%lld, %lld] ", it->blockAddr, it->numBlocks);
191
+
}
192
+
printf("\n");
193
+
}
194
+
195
+
196
+
#if UNIT_TEST
197
+
198
+
/*
199
+
clang++ -arch i386 -arch x86_64 -DUNIT_TEST ExtentManager.cpp -o ExtentManager && ./ExtentManager
200
+
*/
201
+
202
+
#include <cstdio>
203
+
#include <cstdlib>
204
+
205
+
const char *DebugDescription(class ExtentManager *extMan)
206
+
{
207
+
char *result = strdup("");
208
+
char *temp;
209
+
210
+
ListExtIt it;
211
+
212
+
for (it = extMan->extentList.begin(); it != extMan->extentList.end(); it++) {
213
+
temp = result;
214
+
asprintf(&result, "%s[%lld, %lld] ", temp, it->blockAddr, it->numBlocks);
215
+
free(temp);
216
+
}
217
+
218
+
return result;
219
+
}
220
+
221
+
int SimpleTestCase(off_t addAddr, off_t addBlocks, off_t removeAddr, off_t removeBlocks, const char *expectedResult)
222
+
{
223
+
class ExtentManager extMan;
224
+
const char *actualResult;
225
+
int result = 0;
226
+
227
+
extMan.Init(512, 512, 512*999);
228
+
extMan.AddBlockRangeExtent(addAddr, addBlocks);
229
+
extMan.RemoveBlockRangeExtent(removeAddr, removeBlocks);
230
+
actualResult = DebugDescription(&extMan);
231
+
if (strcmp(actualResult, expectedResult))
232
+
{
233
+
fprintf(stderr,
234
+
"SimpleTestCase(%lld, %lld, %lld, %lld) failed.\n"
235
+
" Expected result: %s\n"
236
+
" Actual result: %s\n",
237
+
addAddr, addBlocks, removeAddr, removeBlocks,
238
+
expectedResult, actualResult);
239
+
result = 1;
240
+
}
241
+
free((void *)actualResult);
242
+
243
+
return result;
244
+
}
245
+
246
+
int main(void)
247
+
{
248
+
int failed = 0;
249
+
class ExtentManager *extMan;
250
+
251
+
// Create an extent, and remove one contained inside,
252
+
// leaving the start and end of the original extent.
253
+
// Create: [xxxxxxxxxx]
254
+
// Remove: [......]
255
+
failed |= SimpleTestCase(10, 10, 12, 6, "[0, 0] [10, 2] [18, 2] [999, 0] ");
256
+
257
+
// Create an extent, and remove the whole extent.
258
+
// Create: [xxxxxxxxxx]
259
+
// Remove: [..........]
260
+
failed |= SimpleTestCase(10, 10, 10, 10, "[0, 0] [999, 0] ");
261
+
262
+
// Create an extent, and remove the first part of the extent.
263
+
// Create: [xxxxxxxxxx]
264
+
// Remove: [......]
265
+
failed |= SimpleTestCase(10, 10, 10, 6, "[0, 0] [16, 4] [999, 0] ");
266
+
267
+
// Create an extent, and remove the last part of the extent.
268
+
// Create: [xxxxxxxxxx]
269
+
// Remove: [......]
270
+
failed |= SimpleTestCase(10, 10, 14, 6, "[0, 0] [10, 4] [999, 0] ");
271
+
272
+
// Create an extent and remove before the start, through the middle.
273
+
// Create: [xxxxxxxxxx]
274
+
// Remove: [..........]
275
+
failed |= SimpleTestCase(10, 10, 6, 10, "[0, 0] [16, 4] [999, 0] ");
276
+
277
+
// Create an extent and remove from middle to past the end.
278
+
// Create: [xxxxxxxxxx]
279
+
// Remove: [..........]
280
+
failed |= SimpleTestCase(10, 10, 14, 10, "[0, 0] [10, 4] [999, 0] ");
281
+
282
+
// Create an extent and remove from before through past end.
283
+
// Create: [xxxxxxxxxx]
284
+
// Remove: [..............]
285
+
failed |= SimpleTestCase(10, 10, 6, 18, "[0, 0] [999, 0] ");
286
+
287
+
// Create an extent and remove purely before the extent.
288
+
// Create: [xxxxxxxxxx]
289
+
// Remove: [...]
290
+
failed |= SimpleTestCase(10, 10, 2, 5, "[0, 0] [10, 10] [999, 0] ");
291
+
292
+
// Create an extent and remove purely after the extent.
293
+
// Create: [xxxxxxxxxx]
294
+
// Remove: [...]
295
+
failed |= SimpleTestCase(10, 10, 22, 5, "[0, 0] [10, 10] [999, 0] ");
296
+
297
+
if (failed)
298
+
printf("FAIL!\n");
299
+
else
300
+
printf("Success.\n");
301
+
302
+
return failed;
303
+
}
304
+
305
+
#endif /* UNIT_TEST */
+74
src/libutil/ExtentManager.h
+74
src/libutil/ExtentManager.h
···
1
+
/*
2
+
* Copyright (c) 2008 Computer, Inc. All rights reserved.
3
+
*
4
+
* @APPLE_LICENSE_HEADER_START@
5
+
*
6
+
* This file contains Original Code and/or Modifications of Original Code
7
+
* as defined in and that are subject to the Apple Public Source License
8
+
* Version 2.0 (the 'License'). You may not use this file except in
9
+
* compliance with the License. Please obtain a copy of the License at
10
+
* http://www.opensource.apple.com/apsl/ and read it before using this
11
+
* file.
12
+
*
13
+
* The Original Code and all software distributed under the License are
14
+
* distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
15
+
* EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
16
+
* INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
17
+
* FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
18
+
* Please see the License for the specific language governing rights and
19
+
* limitations under the License.
20
+
*
21
+
* @APPLE_LICENSE_HEADER_END@
22
+
*/
23
+
//
24
+
// ExtentManager.h
25
+
//
26
+
#ifndef EXTENTMANAGER_H
27
+
#define EXTENTMANAGER_H
28
+
29
+
#include <list>
30
+
#include <vector>
31
+
#include <algorithm>
32
+
#include <sys/types.h>
33
+
#include <sys/errno.h>
34
+
#include <cstdio>
35
+
#include <cassert>
36
+
using namespace std;
37
+
38
+
struct ExtentInfo {
39
+
off_t blockAddr;
40
+
off_t numBlocks;
41
+
};
42
+
43
+
inline bool BeforeExtent(const ExtentInfo &a, const ExtentInfo &b)
44
+
{
45
+
return (a.blockAddr + a.numBlocks) < b.blockAddr;
46
+
}
47
+
48
+
typedef list<ExtentInfo>::iterator ListExtIt;
49
+
50
+
class ExtentManager {
51
+
public:
52
+
ExtentManager() : blockSize(0), totalBytes(0), totalBlocks(0) {};
53
+
~ExtentManager() {};
54
+
55
+
void Init(uint32_t theBlockSize, uint32_t theNativeBlockSize, off_t theTotalBytes);
56
+
57
+
void AddBlockRangeExtent(off_t blockAddr, off_t numBlocks);
58
+
void AddByteRangeExtent(off_t byteAddr, off_t numBytes);
59
+
void RemoveBlockRangeExtent(off_t blockAddr, off_t numBlocks);
60
+
61
+
void DebugPrint();
62
+
63
+
protected:
64
+
void MergeExtent(const ExtentInfo &a, const ExtentInfo &b, ExtentInfo *c);
65
+
66
+
public:
67
+
size_t blockSize;
68
+
size_t nativeBlockSize;
69
+
off_t totalBytes;
70
+
off_t totalBlocks;
71
+
list<ExtentInfo> extentList;
72
+
};
73
+
74
+
#endif // #ifndef EXTENTMANAGER_H
+296
src/libutil/getmntopts.3
+296
src/libutil/getmntopts.3
···
1
+
.\" $NetBSD: getmntopts.3,v 1.12 2010/08/24 12:05:01 christos Exp $
2
+
.\"
3
+
.\" Copyright (c) 1994
4
+
.\" The Regents of the University of California. All rights reserved.
5
+
.\"
6
+
.\" Redistribution and use in source and binary forms, with or without
7
+
.\" modification, are permitted provided that the following conditions
8
+
.\" are met:
9
+
.\" 1. Redistributions of source code must retain the above copyright
10
+
.\" notice, this list of conditions and the following disclaimer.
11
+
.\" 2. Redistributions in binary form must reproduce the above copyright
12
+
.\" notice, this list of conditions and the following disclaimer in the
13
+
.\" documentation and/or other materials provided with the distribution.
14
+
.\" 3. Neither the name of the University nor the names of its contributors
15
+
.\" may be used to endorse or promote products derived from this software
16
+
.\" without specific prior written permission.
17
+
.\"
18
+
.\" THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
19
+
.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
20
+
.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
21
+
.\" ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
22
+
.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
23
+
.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
24
+
.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
25
+
.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
26
+
.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
27
+
.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
28
+
.\" SUCH DAMAGE.
29
+
.\"
30
+
.\" @(#)getmntopts.3 8.3 (Berkeley) 3/30/95
31
+
.\"
32
+
.Dd May 4, 2010
33
+
.Dt GETMNTOPTS 3
34
+
.Os
35
+
.Sh NAME
36
+
.Nm getmntopts
37
+
.Nd scan mount options
38
+
.Sh LIBRARY
39
+
.Lb libutil
40
+
.Sh SYNOPSIS
41
+
.In mntopts.h
42
+
.Ft mntoptparse_t
43
+
.Fn getmntopts "const char *options" "const struct mntopt *mopts" "int *flagp" "int *altflagp"
44
+
.Ft const char *
45
+
.Fn getmntoptstr "mntoptparse_t mp" "const char *opt"
46
+
.Ft long
47
+
.Fn getmntoptnum "mntoptparse_t mp" "const char *opt"
48
+
.Ft void
49
+
.Fn freemntopts "mntoptparse_t mp"
50
+
.Sh DESCRIPTION
51
+
The
52
+
.Fn getmntopts
53
+
function takes a comma separated option list and a list
54
+
of valid option names, and computes the bitmasks
55
+
corresponding to the requested set of options.
56
+
.Pp
57
+
The string
58
+
.Ar options
59
+
is broken down into a sequence of comma separated tokens.
60
+
Each token is looked up in the table described by
61
+
.Ar mopts
62
+
and the bits in
63
+
the word referenced by either
64
+
.Ar flagp
65
+
or
66
+
.Ar altflagp
67
+
(depending on the
68
+
.Dv m_altloc
69
+
field of the option's table entry)
70
+
are updated.
71
+
The flag words are not initialized by
72
+
.Fn getmntopts .
73
+
The table,
74
+
.Ar mopts ,
75
+
has the following format:
76
+
.Bd -literal
77
+
struct mntopt {
78
+
const char *m_option; /* option name */
79
+
int m_inverse; /* negative option, e.g., "dev" */
80
+
int m_flag; /* bit to set, e.g., MNT_RDONLY */
81
+
int m_altloc; /* use altflagp rather than flagp */
82
+
};
83
+
.Ed
84
+
.Pp
85
+
The members of this structure are:
86
+
.Bl -tag -width m_inverse
87
+
.It Fa m_option
88
+
the option name,
89
+
for example
90
+
.Dq suid .
91
+
.It Fa m_inverse
92
+
tells
93
+
.Fn getmntopts
94
+
that the name has the inverse meaning of the bit.
95
+
For example,
96
+
.Dq suid
97
+
is the string, whereas the mount flag is
98
+
.Dv MNT_NOSUID .
99
+
In this case, the sense of the string and the flag
100
+
are inverted, so the
101
+
.Fa m_inverse
102
+
flag should be set.
103
+
.It Fa m_flag
104
+
the value of the bit to be set or cleared in
105
+
the flag word when the option is recognized.
106
+
The bit is set when the option is discovered,
107
+
but cleared if the option name was preceded
108
+
by the letters
109
+
.Dq no .
110
+
The
111
+
.Fa m_inverse
112
+
flag causes these two operations to be reversed.
113
+
.It Fa m_altloc
114
+
the bit should be set or cleared in
115
+
.Ar altflagp
116
+
rather than
117
+
.Ar flagp .
118
+
.El
119
+
.Pp
120
+
Each of the user visible
121
+
.Dv MNT_
122
+
flags has a corresponding
123
+
.Dv MOPT_
124
+
macro which defines an appropriate
125
+
.Li "struct mntopt"
126
+
entry.
127
+
To simplify the program interface and ensure consistency across all
128
+
programs, a general purpose macro,
129
+
.Dv MOPT_STDOPTS ,
130
+
is defined which contains an entry for all the generic VFS options:
131
+
.Bd -literal -offset indent
132
+
MOPT_USERQUOTA,
133
+
MOPT_GROUPQUOTA,
134
+
MOPT_FSTAB_COMPAT,
135
+
MOPT_NODEV,
136
+
MOPT_NOEXEC,
137
+
MOPT_NOSUID,
138
+
MOPT_RDONLY,
139
+
MOPT_UNION,
140
+
MOPT_BROWSE,
141
+
MOPT_AUTOMOUNTED,
142
+
MOPT_DEFWRITE,
143
+
MOPT_NOATIME,
144
+
MOPT_PERMISSIONS,
145
+
MOPT_IGNORE_OWNERSHIP,
146
+
MOPT_QUARANTINE,
147
+
MOPT_CPROTECT
148
+
.Ed
149
+
.Pp
150
+
In addition, the macros
151
+
.Dv MOPT_FORCE
152
+
and
153
+
.Dv MOPT_UPDATE
154
+
exist to enable the
155
+
.Dv MNT_FORCE
156
+
and
157
+
.Dv MNT_UPDATE
158
+
flags to be set.
159
+
Finally, the table must be terminated by an entry with a
160
+
.Dv NULL
161
+
first element.
162
+
.Pp
163
+
.Fn getmntopts
164
+
returns a
165
+
.Li "mntoptparse_t"
166
+
handle that can be used in subsequent
167
+
.Fn getmntoptstr
168
+
and
169
+
.Fn getmntoptnum
170
+
calls to fetch a value for an option and that must be freed with a call
171
+
to
172
+
.Fn freemntopts .
173
+
If an error occurred, then if the external integer value
174
+
.Va getmnt_silent
175
+
is zero then
176
+
.Fn getmntopts
177
+
prints an error message and exits;
178
+
if
179
+
.Va getmnt_silent
180
+
is non-zero then
181
+
.Fn getmntopts
182
+
returns
183
+
.Dv NULL .
184
+
.Pp
185
+
The
186
+
.Fn getmntoptstr
187
+
function returns the string value of the named option, if such a value
188
+
was set in the option string.
189
+
If the value was not set, then if the external integer value
190
+
.Va getmnt_silent
191
+
is zero then
192
+
.Fn getmntoptstr
193
+
prints an error message and exits;
194
+
if
195
+
.Va getmnt_silent
196
+
is non-zero then
197
+
.Fn getmntoptstr
198
+
returns
199
+
.Dv NULL .
200
+
.Pp
201
+
The
202
+
.Fn getmntoptnum
203
+
returns the long value of the named option, if such a value was set in the
204
+
option string.
205
+
If the value was not set, or could not be converted from a string to a
206
+
long, then if the external integer value
207
+
.Va getmnt_silent
208
+
is zero then
209
+
.Fn getmntoptnum
210
+
prints an error message and exits;
211
+
if
212
+
.Va getmnt_silent
213
+
is non-zero then
214
+
.Fn getmntoptnum
215
+
returns \-1.
216
+
.Pp
217
+
The
218
+
.Fn freemntopts
219
+
frees the storage used by
220
+
.Fn getmntopts .
221
+
.Sh RETURN VALUES
222
+
.Fn getmntopts
223
+
returns
224
+
.Dv NULL
225
+
if an error occurred.
226
+
Note that some bits may already have been set in
227
+
.Va flagp
228
+
and
229
+
.Va altflagp
230
+
even if
231
+
.Dv NULL
232
+
is returned.
233
+
.Fn getmntoptstr
234
+
returns
235
+
.Dv NULL
236
+
if an error occurred.
237
+
.Fn getmntoptnum
238
+
returns \-1 if an error occurred.
239
+
.Sh EXAMPLES
240
+
Most commands will use the standard option set.
241
+
Local filesystems which support the
242
+
.Dv MNT_UPDATE
243
+
flag, would also have an
244
+
.Dv MOPT_UPDATE
245
+
entry.
246
+
This can be declared and used as follows:
247
+
.Bd -literal -offset indent
248
+
#include \*[Lt]mntopts.h\*[Gt]
249
+
250
+
static const struct mntopt mopts[] = {
251
+
MOPT_STDOPTS,
252
+
MOPT_UPDATE,
253
+
{ NULL }
254
+
};
255
+
256
+
\&...
257
+
258
+
long val;
259
+
mntoptparse_t mp;
260
+
mntflags = mntaltflags = 0;
261
+
262
+
\&...
263
+
264
+
mp = getmntopts(options, mopts, \*[Am]mntflags, \*[Am]mntaltflags);
265
+
266
+
if (mp == NULL)
267
+
err(EXIT_FAILURE, "getmntopts");
268
+
269
+
\&...
270
+
271
+
val = getmntoptnum(mp, "rsize");
272
+
freemntopts(mp);
273
+
.Ed
274
+
.Sh DIAGNOSTICS
275
+
If the external integer variable
276
+
.Va getmnt_silent
277
+
is zero then the
278
+
.Fn getmntopts ,
279
+
.Fn getmntoptstr ,
280
+
and
281
+
.Fn getmntoptnum
282
+
functions display an error message and exit if an error occurred.
283
+
By default
284
+
.Va getmnt_silent
285
+
is zero.
286
+
.Sh SEE ALSO
287
+
.Xr err 3 ,
288
+
.Xr mount 8
289
+
.Sh HISTORY
290
+
The
291
+
.Fn getmntopts
292
+
function appeared in
293
+
.Bx 4.4 .
294
+
It was moved to the utilities library and enhanced to retrieve option
295
+
values in
296
+
.Nx 2.0 .
+188
src/libutil/getmntopts.c
+188
src/libutil/getmntopts.c
···
1
+
/* $NetBSD: getmntopts.c,v 1.3 2003/08/07 16:44:58 agc Exp $ */
2
+
3
+
/*-
4
+
* Copyright (c) 1994
5
+
* The Regents of the University of California. All rights reserved.
6
+
*
7
+
* Redistribution and use in source and binary forms, with or without
8
+
* modification, are permitted provided that the following conditions
9
+
* are met:
10
+
* 1. Redistributions of source code must retain the above copyright
11
+
* notice, this list of conditions and the following disclaimer.
12
+
* 2. Redistributions in binary form must reproduce the above copyright
13
+
* notice, this list of conditions and the following disclaimer in the
14
+
* documentation and/or other materials provided with the distribution.
15
+
* 3. Neither the name of the University nor the names of its contributors
16
+
* may be used to endorse or promote products derived from this software
17
+
* without specific prior written permission.
18
+
*
19
+
* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
20
+
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
21
+
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
22
+
* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
23
+
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
24
+
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
25
+
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
26
+
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
27
+
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
28
+
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
29
+
* SUCH DAMAGE.
30
+
*/
31
+
32
+
#include <sys/cdefs.h>
33
+
#ifndef lint
34
+
#if 0
35
+
static char sccsid[] = "@(#)getmntopts.c 8.3 (Berkeley) 3/29/95";
36
+
#else
37
+
__RCSID("$NetBSD: getmntopts.c,v 1.3 2003/08/07 16:44:58 agc Exp $");
38
+
#endif
39
+
#endif /* not lint */
40
+
41
+
#include <sys/param.h>
42
+
43
+
#include <err.h>
44
+
#include <errno.h>
45
+
#include <fstab.h>
46
+
#include <stdlib.h>
47
+
#include <string.h>
48
+
49
+
#include <mntopts.h>
50
+
51
+
int getmnt_silent = 0;
52
+
53
+
static const char errmsg[] = "-o %s: option not supported";
54
+
55
+
struct mntoptparse {
56
+
const char *options;
57
+
const struct mntopt *mopts;
58
+
char *optbuf;
59
+
char **optarg;
60
+
};
61
+
62
+
const char *
63
+
getmntoptstr(mntoptparse_t mp, const char *opt)
64
+
{
65
+
const struct mntopt *m;
66
+
67
+
for (m = mp->mopts; m->m_option != NULL; m++)
68
+
if (strcasecmp(opt, m->m_option) == 0)
69
+
break;
70
+
71
+
if (m->m_option == NULL) {
72
+
if (getmnt_silent == 0)
73
+
errx(1, errmsg, opt);
74
+
else
75
+
return NULL;
76
+
}
77
+
78
+
return mp->optarg[m - mp->mopts];
79
+
}
80
+
81
+
long
82
+
getmntoptnum(mntoptparse_t mp, const char *opt)
83
+
{
84
+
char *ep;
85
+
long rv;
86
+
void (*fun)(int, const char *, ...) = NULL;
87
+
const char *val = getmntoptstr(mp, opt);
88
+
89
+
if (val == NULL) {
90
+
if (getmnt_silent == 0)
91
+
errx(1, "Missing %s argument", opt);
92
+
else
93
+
return -1;
94
+
}
95
+
96
+
errno = 0;
97
+
rv = strtol(val, &ep, 0);
98
+
99
+
if (*ep)
100
+
fun = errx;
101
+
102
+
if (errno == ERANGE && (rv == LONG_MAX || rv == LONG_MIN))
103
+
fun = err;
104
+
105
+
if (fun) {
106
+
if (getmnt_silent != 0)
107
+
return -1;
108
+
(*fun)(1, "Invalid %s argument `%s'", opt, val);
109
+
}
110
+
return rv;
111
+
}
112
+
113
+
void
114
+
freemntopts(mntoptparse_t mp)
115
+
{
116
+
free(mp->optbuf);
117
+
free(mp->optarg);
118
+
free(mp);
119
+
}
120
+
121
+
mntoptparse_t
122
+
getmntopts(const char *options, const struct mntopt *m0, int *flagp,
123
+
int *altflagp)
124
+
{
125
+
const struct mntopt *m;
126
+
int negative;
127
+
char *opt, *p, *ctx = NULL;
128
+
int *thisflagp;
129
+
size_t nopts;
130
+
mntoptparse_t mp;
131
+
132
+
for (nopts = 0, m = m0; m->m_option != NULL; ++m, nopts++)
133
+
continue;
134
+
135
+
if ((mp = malloc(sizeof(struct mntoptparse))) == NULL)
136
+
return NULL;
137
+
138
+
/* Copy option string, since it is about to be torn asunder... */
139
+
if ((mp->optbuf = strdup(options)) == NULL) {
140
+
free(mp);
141
+
return NULL;
142
+
}
143
+
144
+
if ((mp->optarg = calloc(nopts, sizeof(char *))) == NULL) {
145
+
free(mp->optbuf);
146
+
free(mp);
147
+
return NULL;
148
+
}
149
+
150
+
mp->mopts = m0;
151
+
mp->options = options;
152
+
153
+
for (opt = mp->optbuf; (opt = strtok_r(opt, ",", &ctx)) != NULL; opt = NULL) {
154
+
/* Check for "no" prefix. */
155
+
if (opt[0] == 'n' && opt[1] == 'o') {
156
+
negative = 1;
157
+
opt += 2;
158
+
} else
159
+
negative = 0;
160
+
161
+
/*
162
+
* for options with assignments in them (ie. quotas)
163
+
* ignore the assignment as it's handled elsewhere
164
+
*/
165
+
p = strchr(opt, '=');
166
+
if (p) {
167
+
*p++ = '\0';
168
+
}
169
+
170
+
/* Scan option table. */
171
+
for (m = m0; m->m_option != NULL; ++m)
172
+
if (strcasecmp(opt, m->m_option) == 0)
173
+
break;
174
+
175
+
/* Save flag, or fail if option is not recognised. */
176
+
if (m->m_option) {
177
+
mp->optarg[m - m0] = p;
178
+
thisflagp = m->m_altloc ? altflagp : flagp;
179
+
if (negative == m->m_inverse)
180
+
*thisflagp |= m->m_flag;
181
+
else
182
+
*thisflagp &= ~m->m_flag;
183
+
} else if (!getmnt_silent) {
184
+
errx(1, errmsg, opt);
185
+
}
186
+
}
187
+
return mp;
188
+
}
+148
src/libutil/humanize_number.3
+148
src/libutil/humanize_number.3
···
1
+
.\" $NetBSD: humanize_number.3,v 1.4 2003/04/16 13:34:37 wiz Exp $
2
+
.\" $FreeBSD: src/lib/libutil/humanize_number.3,v 1.8 2005/04/10 12:15:25 delphij Exp $
3
+
.\"
4
+
.\" Copyright (c) 1999, 2002 The NetBSD Foundation, Inc.
5
+
.\" All rights reserved.
6
+
.\"
7
+
.\" This code is derived from software contributed to The NetBSD Foundation
8
+
.\" by Luke Mewburn and by Tomas Svensson.
9
+
.\"
10
+
.\" Redistribution and use in source and binary forms, with or without
11
+
.\" modification, are permitted provided that the following conditions
12
+
.\" are met:
13
+
.\" 1. Redistributions of source code must retain the above copyright
14
+
.\" notice, this list of conditions and the following disclaimer.
15
+
.\" 2. Redistributions in binary form must reproduce the above copyright
16
+
.\" notice, this list of conditions and the following disclaimer in the
17
+
.\" documentation and/or other materials provided with the distribution.
18
+
.\" 3. All advertising materials mentioning features or use of this software
19
+
.\" must display the following acknowledgement:
20
+
.\" This product includes software developed by the NetBSD
21
+
.\" Foundation, Inc. and its contributors.
22
+
.\" 4. Neither the name of The NetBSD Foundation nor the names of its
23
+
.\" contributors may be used to endorse or promote products derived
24
+
.\" from this software without specific prior written permission.
25
+
.\"
26
+
.\" THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
27
+
.\" ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
28
+
.\" TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
29
+
.\" PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
30
+
.\" BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
31
+
.\" CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
32
+
.\" SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
33
+
.\" INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
34
+
.\" CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
35
+
.\" ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
36
+
.\" POSSIBILITY OF SUCH DAMAGE.
37
+
.\"
38
+
.Dd May 25, 2004
39
+
.Dt HUMANIZE_NUMBER 3
40
+
.Os
41
+
.Sh NAME
42
+
.Nm humanize_number
43
+
.Nd format a number into a human readable form
44
+
.Sh LIBRARY
45
+
.Lb libutil
46
+
.Sh SYNOPSIS
47
+
.In libutil.h
48
+
.Ft int
49
+
.Fo humanize_number
50
+
.Fa "char *buf" "size_t len" "int64_t number" "const char *suffix"
51
+
.Fa "int scale" "int flags"
52
+
.Fc
53
+
.Sh DESCRIPTION
54
+
The
55
+
.Fn humanize_number
56
+
function formats the signed 64-bit quantity given in
57
+
.Fa number
58
+
into
59
+
.Fa buffer .
60
+
A space and then
61
+
.Fa suffix
62
+
is appended to the end.
63
+
The buffer pointed to by
64
+
.Fa buffer
65
+
must be at least
66
+
.Fa len
67
+
bytes long.
68
+
.Pp
69
+
If the formatted number (including
70
+
.Fa suffix )
71
+
would be too long to fit into
72
+
.Fa buffer ,
73
+
then divide
74
+
.Fa number
75
+
by 1024 until it will.
76
+
In this case, prefix
77
+
.Fa suffix
78
+
with the appropriate SI designator.
79
+
.Pp
80
+
The prefixes are:
81
+
.Bl -column "Prefix" "Description" "Multiplier" -offset indent
82
+
.It Sy "Prefix" Ta Sy "Description" Ta Sy "Multiplier"
83
+
.It Li k Ta No kilo Ta 1024
84
+
.It Li M Ta No mega Ta 1048576
85
+
.It Li G Ta No giga Ta 1073741824
86
+
.It Li T Ta No tera Ta 1099511627776
87
+
.It Li P Ta No peta Ta 1125899906842624
88
+
.It Li E Ta No exa Ta 1152921504606846976
89
+
.El
90
+
.Pp
91
+
The
92
+
.Fa len
93
+
argument must be at least 4 plus the length of
94
+
.Fa suffix ,
95
+
in order to ensure a useful result is generated into
96
+
.Fa buffer .
97
+
To use a specific prefix, specify this as
98
+
.Fa scale
99
+
(multiplier = 1024 ^ scale).
100
+
This cannot be combined with any of the
101
+
.Fa scale
102
+
flags below.
103
+
.Pp
104
+
The following flags may be passed in
105
+
.Fa scale :
106
+
.Bl -tag -width ".Dv HN_DIVISOR_1000" -offset indent
107
+
.It Dv HN_AUTOSCALE
108
+
Format the buffer using the lowest multiplier possible.
109
+
.It Dv HN_GETSCALE
110
+
Return the prefix index number (the number of times
111
+
.Fa number
112
+
must be divided to fit) instead of formatting it to the buffer.
113
+
.El
114
+
.Pp
115
+
The following flags may be passed in
116
+
.Fa flags :
117
+
.Bl -tag -width ".Dv HN_DIVISOR_1000" -offset indent
118
+
.It Dv HN_DECIMAL
119
+
If the final result is less than 10, display it using one digit.
120
+
.It Dv HN_NOSPACE
121
+
Do not put a space between
122
+
.Fa number
123
+
and the prefix.
124
+
.It Dv HN_B
125
+
Use
126
+
.Ql B
127
+
(bytes) as prefix if the original result does not have a prefix.
128
+
.It Dv HN_DIVISOR_1000
129
+
Divide
130
+
.Fa number
131
+
with 1000 instead of 1024.
132
+
.El
133
+
.Sh RETURN VALUES
134
+
The
135
+
.Fn humanize_number
136
+
function returns the number of characters stored in
137
+
.Fa buffer
138
+
(excluding the terminating
139
+
.Dv NUL )
140
+
upon success, or \-1 upon failure.
141
+
If
142
+
.Dv HN_GETSCALE
143
+
is specified, the prefix index number will be returned instead.
144
+
.Sh HISTORY
145
+
The
146
+
.Fn humanize_number
147
+
function first appeared in
148
+
.Nx 2.0 .
+159
src/libutil/humanize_number.c
+159
src/libutil/humanize_number.c
···
1
+
/* $NetBSD: humanize_number.c,v 1.8 2004/07/27 01:56:24 enami Exp $ */
2
+
3
+
/*
4
+
* Copyright (c) 1997, 1998, 1999, 2002 The NetBSD Foundation, Inc.
5
+
* All rights reserved.
6
+
*
7
+
* This code is derived from software contributed to The NetBSD Foundation
8
+
* by Jason R. Thorpe of the Numerical Aerospace Simulation Facility,
9
+
* NASA Ames Research Center, by Luke Mewburn and by Tomas Svensson.
10
+
*
11
+
* Redistribution and use in source and binary forms, with or without
12
+
* modification, are permitted provided that the following conditions
13
+
* are met:
14
+
* 1. Redistributions of source code must retain the above copyright
15
+
* notice, this list of conditions and the following disclaimer.
16
+
* 2. Redistributions in binary form must reproduce the above copyright
17
+
* notice, this list of conditions and the following disclaimer in the
18
+
* documentation and/or other materials provided with the distribution.
19
+
* 3. All advertising materials mentioning features or use of this software
20
+
* must display the following acknowledgement:
21
+
* This product includes software developed by the NetBSD
22
+
* Foundation, Inc. and its contributors.
23
+
* 4. Neither the name of The NetBSD Foundation nor the names of its
24
+
* contributors may be used to endorse or promote products derived
25
+
* from this software without specific prior written permission.
26
+
*
27
+
* THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
28
+
* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
29
+
* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
30
+
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
31
+
* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
32
+
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
33
+
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
34
+
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
35
+
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
36
+
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
37
+
* POSSIBILITY OF SUCH DAMAGE.
38
+
*/
39
+
40
+
#include <sys/cdefs.h>
41
+
42
+
#include <sys/types.h>
43
+
#include <assert.h>
44
+
#include <stdio.h>
45
+
#include <stdlib.h>
46
+
#include <string.h>
47
+
#include <locale.h>
48
+
#include <libutil.h>
49
+
#include <stdint.h>
50
+
#include <limits.h>
51
+
52
+
int
53
+
humanize_number(char *buf, size_t len, int64_t bytes,
54
+
const char *suffix, int scale, int flags)
55
+
{
56
+
const char *prefixes, *sep;
57
+
int b, i, r, maxscale, s1, s2, sign;
58
+
int64_t divisor, max;
59
+
// We multiply bytes by 100 to deal with rounding, so we need something
60
+
// big enough to hold LLONG_MAX * 100. On 64-bit we can use 128-bit wide
61
+
// integers with __int128_t, but on 32-bit we have to use long double.
62
+
#ifdef __LP64__
63
+
__int128_t scalable = (__int128_t)bytes;
64
+
#else
65
+
long double scalable = (long double)bytes;
66
+
#endif
67
+
size_t baselen;
68
+
69
+
assert(buf != NULL);
70
+
assert(suffix != NULL);
71
+
assert(scale >= 0);
72
+
73
+
if (flags & HN_DIVISOR_1000) {
74
+
/* SI for decimal multiplies */
75
+
divisor = 1000;
76
+
if (flags & HN_B)
77
+
prefixes = "B\0k\0M\0G\0T\0P\0E";
78
+
else
79
+
prefixes = "\0\0k\0M\0G\0T\0P\0E";
80
+
} else {
81
+
/*
82
+
* binary multiplies
83
+
* XXX IEC 60027-2 recommends Ki, Mi, Gi...
84
+
*/
85
+
divisor = 1024;
86
+
if (flags & HN_B)
87
+
prefixes = "B\0K\0M\0G\0T\0P\0E";
88
+
else
89
+
prefixes = "\0\0K\0M\0G\0T\0P\0E";
90
+
}
91
+
92
+
#define SCALE2PREFIX(scale) (&prefixes[(scale) << 1])
93
+
maxscale = 7;
94
+
95
+
if (scale >= maxscale &&
96
+
(scale & (HN_AUTOSCALE | HN_GETSCALE)) == 0)
97
+
return (-1);
98
+
99
+
if (buf == NULL || suffix == NULL)
100
+
return (-1);
101
+
102
+
if (len > 0)
103
+
buf[0] = '\0';
104
+
if (bytes < 0) {
105
+
sign = -1;
106
+
scalable *= -100;
107
+
baselen = 3; /* sign, digit, prefix */
108
+
} else {
109
+
sign = 1;
110
+
scalable *= 100;
111
+
baselen = 2; /* digit, prefix */
112
+
}
113
+
if (flags & HN_NOSPACE)
114
+
sep = "";
115
+
else {
116
+
sep = " ";
117
+
baselen++;
118
+
}
119
+
baselen += strlen(suffix);
120
+
121
+
/* Check if enough room for `x y' + suffix + `\0' */
122
+
if (len < baselen + 1)
123
+
return (-1);
124
+
125
+
if (scale & (HN_AUTOSCALE | HN_GETSCALE)) {
126
+
/* See if there is additional columns can be used. */
127
+
for (max = 100, i = len - baselen; i-- > 0;)
128
+
max *= 10;
129
+
130
+
for (i = 0; scalable >= max && i < maxscale; i++)
131
+
scalable /= divisor;
132
+
133
+
if (scale & HN_GETSCALE)
134
+
return (i);
135
+
} else
136
+
for (i = 0; i < scale && i < maxscale; i++)
137
+
scalable /= divisor;
138
+
139
+
/* If a value <= 9.9 after rounding and ... */
140
+
if (scalable < 995 && i > 0 && flags & HN_DECIMAL) {
141
+
/* baselen + \0 + .N */
142
+
if (len < baselen + 1 + 2)
143
+
return (-1);
144
+
b = ((int)scalable + 5) / 10;
145
+
s1 = b / 10;
146
+
s2 = b % 10;
147
+
r = snprintf(buf, len, "%s%d%s%d%s%s%s",
148
+
((sign == -1) ? "-" : ""),
149
+
s1, localeconv()->decimal_point, s2,
150
+
sep, SCALE2PREFIX(i), suffix);
151
+
} else
152
+
r = snprintf(buf, len, "%s%lld%s%s%s",
153
+
/* LONGLONG */
154
+
((sign == -1) ? "-" : ""),
155
+
(long long)((scalable + 50) / 100),
156
+
sep, SCALE2PREFIX(i), suffix);
157
+
158
+
return (r);
159
+
}
+20
src/libutil/libutil.exports
+20
src/libutil/libutil.exports
···
1
+
_freemntopts
2
+
_getmnt_silent
3
+
_getmntoptnum
4
+
_getmntopts
5
+
_getmntoptstr
6
+
_humanize_number
7
+
_pidfile_close
8
+
_pidfile_open
9
+
_pidfile_remove
10
+
_pidfile_write
11
+
_realhostname
12
+
_realhostname_sa
13
+
_reexec_to_match_kernel
14
+
_reexec_to_match_lp64ness
15
+
_tzlink
16
+
_wipefs_alloc
17
+
_wipefs_except_blocks
18
+
_wipefs_free
19
+
_wipefs_include_blocks
20
+
_wipefs_wipe
+93
src/libutil/libutil.h
+93
src/libutil/libutil.h
···
1
+
/*
2
+
* Copyright (c) 1996 Peter Wemm <peter@FreeBSD.org>.
3
+
* All rights reserved.
4
+
* Copyright (c) 2002 Networks Associates Technology, Inc.
5
+
* All rights reserved.
6
+
*
7
+
* Portions of this software were developed for the FreeBSD Project by
8
+
* ThinkSec AS and NAI Labs, the Security Research Division of Network
9
+
* Associates, Inc. under DARPA/SPAWAR contract N66001-01-C-8035
10
+
* ("CBOSS"), as part of the DARPA CHATS research program.
11
+
*
12
+
* Redistribution and use in source and binary forms, with or without
13
+
* modification, is permitted provided that the following conditions
14
+
* are met:
15
+
* 1. Redistributions of source code must retain the above copyright
16
+
* notice, this list of conditions and the following disclaimer.
17
+
* 2. Redistributions in binary form must reproduce the above copyright
18
+
* notice, this list of conditions and the following disclaimer in the
19
+
* documentation and/or other materials provided with the distribution.
20
+
* 3. The name of the author may not be used to endorse or promote
21
+
* products derived from this software without specific prior written
22
+
* permission.
23
+
*
24
+
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
25
+
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
26
+
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
27
+
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
28
+
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
29
+
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
30
+
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
31
+
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
32
+
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
33
+
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
34
+
* SUCH DAMAGE.
35
+
*
36
+
* $FreeBSD: src/lib/libutil/libutil.h,v 1.42 2006/02/18 11:25:28 des Exp $
37
+
*/
38
+
39
+
#ifndef _LIBUTIL_H_
40
+
#define _LIBUTIL_H_
41
+
42
+
#include <unistd.h>
43
+
#include <stdbool.h>
44
+
45
+
#ifdef _SYS_PARAM_H_
46
+
/* for pidfile.c */
47
+
struct pidfh {
48
+
int pf_fd;
49
+
char pf_path[MAXPATHLEN + 1];
50
+
dev_t pf_dev;
51
+
ino_t pf_ino;
52
+
};
53
+
#endif
54
+
55
+
struct in_addr;
56
+
struct sockaddr;
57
+
58
+
__BEGIN_DECLS
59
+
int humanize_number(char *_buf, size_t _len, int64_t _number,
60
+
const char *_suffix, int _scale, int _flags);
61
+
62
+
int realhostname(char *host, size_t hsize, const struct in_addr *ip);
63
+
int realhostname_sa(char *host, size_t hsize, struct sockaddr *addr,
64
+
int addrlen);
65
+
66
+
#ifdef _SYS_PARAM_H_
67
+
struct pidfh *pidfile_open(const char *path, mode_t mode, pid_t *pidptr);
68
+
int pidfile_write(struct pidfh *pfh);
69
+
int pidfile_close(struct pidfh *pfh);
70
+
int pidfile_remove(struct pidfh *pfh);
71
+
#endif
72
+
73
+
int reexec_to_match_kernel(void);
74
+
int reexec_to_match_lp64ness(bool isLP64);
75
+
76
+
__END_DECLS
77
+
78
+
/* return values from realhostname() */
79
+
#define HOSTNAME_FOUND (0)
80
+
#define HOSTNAME_INCORRECTNAME (1)
81
+
#define HOSTNAME_INVALIDADDR (2)
82
+
#define HOSTNAME_INVALIDNAME (3)
83
+
84
+
/* humanize_number(3) */
85
+
#define HN_DECIMAL 0x01
86
+
#define HN_NOSPACE 0x02
87
+
#define HN_B 0x04
88
+
#define HN_DIVISOR_1000 0x08
89
+
90
+
#define HN_GETSCALE 0x10
91
+
#define HN_AUTOSCALE 0x20
92
+
93
+
#endif /* !_LIBUTIL_H_ */
+34
src/libutil/libutil.plist
+34
src/libutil/libutil.plist
···
1
+
<?xml version="1.0" encoding="UTF-8"?>
2
+
<!DOCTYPE plist PUBLIC "-//Apple Computer//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
3
+
<plist version="1.0">
4
+
<array>
5
+
<dict>
6
+
<key>OpenSourceSCM</key>
7
+
<string>cvs -d freebsdanoncvs@anoncvs.FreeBSD.org:/home/ncvs co libutil</string>
8
+
<key>OpenSourceImportDate</key>
9
+
<string>2006-05-20</string>
10
+
<key>OpenSourceLicense</key>
11
+
<string>BSD</string>
12
+
<key>OpenSourceLicenseFile</key>
13
+
<string>libutil.txt</string>
14
+
<key>OpenSourceProject</key>
15
+
<string>libutil</string>
16
+
<key>OpenSourceVersion</key>
17
+
<string>2005-02-13</string>
18
+
</dict>
19
+
<dict>
20
+
<key>OpenSourceImportDate</key>
21
+
<string>2006-05-20</string>
22
+
<key>OpenSourceLicense</key>
23
+
<string>BSD</string>
24
+
<key>OpenSourceLicenseFile</key>
25
+
<string>libutil.txt</string>
26
+
<key>OpenSourceProject</key>
27
+
<string>libutil</string>
28
+
<key>OpenSourceVersion</key>
29
+
<string>1.3</string>
30
+
<key>OpenSourceURL</key>
31
+
<string>http://cvsweb.netbsd.org/bsdweb.cgi/~checkout~/src/lib/libutil/getmntopts.c?rev=1.3</string>
32
+
</dict>
33
+
</array>
34
+
</plist>
+238
src/libutil/libutil.txt
+238
src/libutil/libutil.txt
···
1
+
_secure_path.c:
2
+
/*-
3
+
* Based on code copyright (c) 1995,1997 by
4
+
* Berkeley Software Design, Inc.
5
+
* All rights reserved.
6
+
*
7
+
* Redistribution and use in source and binary forms, with or without
8
+
* modification, is permitted provided that the following conditions
9
+
* are met:
10
+
* 1. Redistributions of source code must retain the above copyright
11
+
* notice immediately at the beginning of the file, without modification,
12
+
* this list of conditions, and the following disclaimer.
13
+
* 2. Redistributions in binary form must reproduce the above copyright
14
+
* notice, this list of conditions and the following disclaimer in the
15
+
* documentation and/or other materials provided with the distribution.
16
+
* 3. This work was done expressly for inclusion into FreeBSD. Other use
17
+
* is permitted provided this notation is included.
18
+
* 4. Absolutely no warranty of function or purpose is made by the authors.
19
+
* 5. Modifications may be freely made to this file providing the above
20
+
* conditions are met.
21
+
*/
22
+
23
+
fparseln.c:
24
+
/*
25
+
* Copyright (c) 1997 Christos Zoulas. All rights reserved.
26
+
*
27
+
* Redistribution and use in source and binary forms, with or without
28
+
* modification, are permitted provided that the following conditions
29
+
* are met:
30
+
* 1. Redistributions of source code must retain the above copyright
31
+
* notice, this list of conditions and the following disclaimer.
32
+
* 2. Redistributions in binary form must reproduce the above copyright
33
+
* notice, this list of conditions and the following disclaimer in the
34
+
* documentation and/or other materials provided with the distribution.
35
+
* 3. All advertising materials mentioning features or use of this software
36
+
* must display the following acknowledgement:
37
+
* This product includes software developed by Christos Zoulas.
38
+
* 4. The name of the author may not be used to endorse or promote products
39
+
* derived from this software without specific prior written permission.
40
+
*
41
+
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
42
+
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
43
+
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
44
+
* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
45
+
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
46
+
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
47
+
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
48
+
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
49
+
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
50
+
* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
51
+
*/
52
+
53
+
humanize_number.c:
54
+
/*
55
+
* Copyright (c) 1997, 1998, 1999, 2002 The NetBSD Foundation, Inc.
56
+
* All rights reserved.
57
+
*
58
+
* This code is derived from software contributed to The NetBSD Foundation
59
+
* by Jason R. Thorpe of the Numerical Aerospace Simulation Facility,
60
+
* NASA Ames Research Center, by Luke Mewburn and by Tomas Svensson.
61
+
*
62
+
* Redistribution and use in source and binary forms, with or without
63
+
* modification, are permitted provided that the following conditions
64
+
* are met:
65
+
* 1. Redistributions of source code must retain the above copyright
66
+
* notice, this list of conditions and the following disclaimer.
67
+
* 2. Redistributions in binary form must reproduce the above copyright
68
+
* notice, this list of conditions and the following disclaimer in the
69
+
* documentation and/or other materials provided with the distribution.
70
+
* 3. All advertising materials mentioning features or use of this software
71
+
* must display the following acknowledgement:
72
+
* This product includes software developed by the NetBSD
73
+
* Foundation, Inc. and its contributors.
74
+
* 4. Neither the name of The NetBSD Foundation nor the names of its
75
+
* contributors may be used to endorse or promote products derived
76
+
* from this software without specific prior written permission.
77
+
*
78
+
* THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
79
+
* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
80
+
* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
81
+
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
82
+
* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
83
+
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
84
+
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
85
+
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
86
+
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
87
+
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
88
+
* POSSIBILITY OF SUCH DAMAGE.
89
+
*/
90
+
91
+
pidfile.c:
92
+
/*-
93
+
* Copyright (c) 2005 Pawel Jakub Dawidek <pjd@FreeBSD.org>
94
+
* All rights reserved.
95
+
*
96
+
* Redistribution and use in source and binary forms, with or without
97
+
* modification, are permitted provided that the following conditions
98
+
* are met:
99
+
* 1. Redistributions of source code must retain the above copyright
100
+
* notice, this list of conditions and the following disclaimer.
101
+
* 2. Redistributions in binary form must reproduce the above copyright
102
+
* notice, this list of conditions and the following disclaimer in the
103
+
* documentation and/or other materials provided with the distribution.
104
+
*
105
+
* THIS SOFTWARE IS PROVIDED BY THE AUTHORS AND CONTRIBUTORS ``AS IS'' AND
106
+
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
107
+
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
108
+
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHORS OR CONTRIBUTORS BE LIABLE
109
+
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
110
+
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
111
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
112
+
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
113
+
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
114
+
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
115
+
* SUCH DAMAGE.
116
+
*/
117
+
118
+
property.c:
119
+
/*
120
+
*
121
+
* Simple property list handling code.
122
+
*
123
+
* Copyright (c) 1998
124
+
* Jordan "Perky" Hubbard. All rights reserved.
125
+
*
126
+
* Redistribution and use in source and binary forms, with or without
127
+
* modification, are permitted provided that the following conditions
128
+
* are met:
129
+
* 1. Redistributions of source code must retain the above copyright
130
+
* notice, this list of conditions and the following disclaimer,
131
+
* verbatim and that no modifications are made prior to this
132
+
* point in the file.
133
+
* 2. Redistributions in binary form must reproduce the above copyright
134
+
* notice, this list of conditions and the following disclaimer in the
135
+
* documentation and/or other materials provided with the distribution.
136
+
*
137
+
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
138
+
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
139
+
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
140
+
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR HIS PETS BE LIABLE
141
+
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
142
+
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
143
+
* OR SERVICES; LOSS OF USE, DATA, LIFE OR PROFITS; OR BUSINESS INTERRUPTION)
144
+
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
145
+
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
146
+
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
147
+
* SUCH DAMAGE.
148
+
*/
149
+
150
+
realhostname.c:
151
+
/*-
152
+
* Copyright (c) 1999 Brian Somers <brian@Awfulhak.org>
153
+
* All rights reserved.
154
+
*
155
+
* Redistribution and use in source and binary forms, with or without
156
+
* modification, are permitted provided that the following conditions
157
+
* are met:
158
+
* 1. Redistributions of source code must retain the above copyright
159
+
* notice, this list of conditions and the following disclaimer.
160
+
* 2. Redistributions in binary form must reproduce the above copyright
161
+
* notice, this list of conditions and the following disclaimer in the
162
+
* documentation and/or other materials provided with the distribution.
163
+
*
164
+
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
165
+
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
166
+
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
167
+
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
168
+
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
169
+
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
170
+
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
171
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
172
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
173
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
174
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* SUCH DAMAGE.
175
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*/
176
+
177
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trimdomain.c:
178
+
/*-
179
+
* Copyright (c) 2001 Brian Somers <brian@Awfulhak.org>
180
+
* Based on original work by Atsushi Murai <amurai@FreeBSD.org>
181
+
* All rights reserved.
182
+
*
183
+
* Redistribution and use in source and binary forms, with or without
184
+
* modification, are permitted provided that the following conditions
185
+
* are met:
186
+
* 1. Redistributions of source code must retain the above copyright
187
+
* notice, this list of conditions and the following disclaimer.
188
+
* 2. Redistributions in binary form must reproduce the above copyright
189
+
* notice, this list of conditions and the following disclaimer in the
190
+
* documentation and/or other materials provided with the distribution.
191
+
*
192
+
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
193
+
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
194
+
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
195
+
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
196
+
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
197
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
198
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
199
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
200
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
201
+
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
203
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*
204
+
*/
205
+
206
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uucplock.c:
207
+
/*
208
+
* Copyright (c) 1988, 1993
209
+
* The Regents of the University of California. All rights reserved.
210
+
*
211
+
* Redistribution and use in source and binary forms, with or without
212
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* modification, are permitted provided that the following conditions
213
+
* are met:
214
+
* 1. Redistributions of source code must retain the above copyright
215
+
* notice, this list of conditions and the following disclaimer.
216
+
* 2. Redistributions in binary form must reproduce the above copyright
217
+
* notice, this list of conditions and the following disclaimer in the
218
+
* documentation and/or other materials provided with the distribution.
219
+
* 3. All advertising materials mentioning features or use of this software
220
+
* must display the following acknowledgement:
221
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* This product includes software developed by the University of
222
+
* California, Berkeley and its contributors.
223
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* 4. Neither the name of the University nor the names of its contributors
224
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* may be used to endorse or promote products derived from this software
225
+
* without specific prior written permission.
226
+
*
227
+
* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
228
+
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
229
+
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
230
+
* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
231
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
232
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
233
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
234
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
235
+
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
236
+
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
237
+
* SUCH DAMAGE.
238
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*/
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+7
src/libutil/libutil.xcodeproj/project.xcworkspace/contents.xcworkspacedata
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src/libutil/libutil.xcodeproj/project.xcworkspace/contents.xcworkspacedata
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src/libutil/mntopts.h
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src/libutil/mntopts.h
···
1
+
/*
2
+
* Copyright (c) 1999 Apple Computer, Inc. All rights reserved.
3
+
*
4
+
* @APPLE_LICENSE_HEADER_START@
5
+
*
6
+
* This file contains Original Code and/or Modifications of Original Code
7
+
* as defined in and that are subject to the Apple Public Source License
8
+
* Version 2.0 (the 'License'). You may not use this file except in
9
+
* compliance with the License. Please obtain a copy of the License at
10
+
* http://www.opensource.apple.com/apsl/ and read it before using this
11
+
* file.
12
+
*
13
+
* The Original Code and all software distributed under the License are
14
+
* distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
15
+
* EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
16
+
* INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
17
+
* FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
18
+
* Please see the License for the specific language governing rights and
19
+
* limitations under the License.
20
+
*
21
+
* @APPLE_LICENSE_HEADER_END@
22
+
*/
23
+
24
+
/* $NetBSD: mntopts.h,v 1.7 2006/02/12 01:32:06 chs Exp $ */
25
+
26
+
/*-
27
+
* Copyright (c) 1994
28
+
* The Regents of the University of California. All rights reserved.
29
+
*
30
+
* Redistribution and use in source and binary forms, with or without
31
+
* modification, are permitted provided that the following conditions
32
+
* are met:
33
+
* 1. Redistributions of source code must retain the above copyright
34
+
* notice, this list of conditions and the following disclaimer.
35
+
* 2. Redistributions in binary form must reproduce the above copyright
36
+
* notice, this list of conditions and the following disclaimer in the
37
+
* documentation and/or other materials provided with the distribution.
38
+
* 3. Neither the name of the University nor the names of its contributors
39
+
* may be used to endorse or promote products derived from this software
40
+
* without specific prior written permission.
41
+
*
42
+
* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
43
+
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
44
+
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
45
+
* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
46
+
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
47
+
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
48
+
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
49
+
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
50
+
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
51
+
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
52
+
* SUCH DAMAGE.
53
+
*
54
+
* @(#)mntopts.h 8.7 (Berkeley) 3/29/95
55
+
*/
56
+
#ifndef _MNTOPTS_H_
57
+
#define _MNTOPTS_H_
58
+
59
+
#ifdef __cplusplus
60
+
extern "C" {
61
+
#endif
62
+
63
+
struct mntopt {
64
+
const char *m_option; /* option name */
65
+
int m_inverse; /* if a negative option, eg "dev" */
66
+
int m_flag; /* bit to set, eg. MNT_RDONLY */
67
+
int m_altloc; /* 1 => set bit in altflags */
68
+
};
69
+
70
+
/* User-visible MNT_ flags. */
71
+
#define MOPT_ASYNC { "async", 0, MNT_ASYNC, 0 }
72
+
#define MOPT_NODEV { "dev", 1, MNT_NODEV, 0 }
73
+
#define MOPT_NOEXEC { "exec", 1, MNT_NOEXEC, 0 }
74
+
#define MOPT_NOSUID { "suid", 1, MNT_NOSUID, 0 }
75
+
#define MOPT_RDONLY { "rdonly", 0, MNT_RDONLY, 0 }
76
+
#define MOPT_SYNC { "sync", 0, MNT_SYNCHRONOUS, 0 }
77
+
#define MOPT_UNION { "union", 0, MNT_UNION, 0 }
78
+
#define MOPT_USERQUOTA { "userquota", 0, 0, 0 }
79
+
#define MOPT_GROUPQUOTA { "groupquota", 0, 0, 0 }
80
+
#define MOPT_BROWSE { "browse", 1, MNT_DONTBROWSE, 0 }
81
+
#define MOPT_AUTOMOUNTED { "automounted",0, MNT_AUTOMOUNTED, 0 }
82
+
#define MOPT_DEFWRITE { "defwrite", 0, MNT_DEFWRITE, 0}
83
+
#define MOPT_NOATIME { "atime", 1, MNT_NOATIME, 0}
84
+
#define MOPT_IGNORE_OWNERSHIP { "owners", 1, MNT_IGNORE_OWNERSHIP, 0}
85
+
/* alias the deprecated name for compatibility */
86
+
#define MOPT_PERMISSIONS { "perm", 1, MNT_IGNORE_OWNERSHIP, 0}
87
+
#define MOPT_QUARANTINE { "quarantine", 0, MNT_QUARANTINE, 0}
88
+
#define MOPT_CPROTECT { "protect", 0, MNT_CPROTECT, 0 }
89
+
90
+
/* Control flags. */
91
+
#define MOPT_FORCE { "force", 0, MNT_FORCE, 0 }
92
+
#define MOPT_UPDATE { "update", 0, MNT_UPDATE, 0 }
93
+
#define MOPT_RELOAD { "reload", 0, MNT_RELOAD, 0 }
94
+
95
+
/* Support for old-style "ro", "rw" flags. */
96
+
#define MOPT_RO { "ro", 0, MNT_RDONLY, 0 }
97
+
#define MOPT_RW { "rw", 1, MNT_RDONLY, 0 }
98
+
99
+
/* This is parsed by mount(8), but is ignored by specific mount_*(8)s. */
100
+
#define MOPT_AUTO { "auto", 0, 0, 0 }
101
+
102
+
#define MOPT_FSTAB_COMPAT \
103
+
MOPT_RO, \
104
+
MOPT_RW, \
105
+
MOPT_AUTO
106
+
107
+
/* Standard options which all mounts can understand. */
108
+
#define MOPT_STDOPTS \
109
+
MOPT_USERQUOTA, \
110
+
MOPT_GROUPQUOTA, \
111
+
MOPT_FSTAB_COMPAT, \
112
+
MOPT_NODEV, \
113
+
MOPT_NOEXEC, \
114
+
MOPT_NOSUID, \
115
+
MOPT_RDONLY, \
116
+
MOPT_UNION, \
117
+
MOPT_BROWSE, \
118
+
MOPT_AUTOMOUNTED, \
119
+
MOPT_DEFWRITE, \
120
+
MOPT_NOATIME, \
121
+
MOPT_PERMISSIONS, \
122
+
MOPT_IGNORE_OWNERSHIP, \
123
+
MOPT_QUARANTINE, \
124
+
MOPT_CPROTECT
125
+
126
+
typedef struct mntoptparse *mntoptparse_t;
127
+
mntoptparse_t getmntopts(const char *, const struct mntopt *, int *, int *);
128
+
const char *getmntoptstr(mntoptparse_t, const char *);
129
+
long getmntoptnum(mntoptparse_t, const char *);
130
+
void freemntopts(mntoptparse_t);
131
+
132
+
extern int getmnt_silent;
133
+
134
+
#ifdef __cplusplus
135
+
}
136
+
#endif
137
+
138
+
#endif /* _MNTOPTS_H_ */
+249
src/libutil/pidfile.3
+249
src/libutil/pidfile.3
···
1
+
.\" Copyright (c) 2005 Pawel Jakub Dawidek <pjd@FreeBSD.org>
2
+
.\" All rights reserved.
3
+
.\"
4
+
.\" Redistribution and use in source and binary forms, with or without
5
+
.\" modification, are permitted provided that the following conditions
6
+
.\" are met:
7
+
.\" 1. Redistributions of source code must retain the above copyright
8
+
.\" notice, this list of conditions and the following disclaimer.
9
+
.\" 2. Redistributions in binary form must reproduce the above copyright
10
+
.\" notice, this list of conditions and the following disclaimer in the
11
+
.\" documentation and/or other materials provided with the distribution.
12
+
.\"
13
+
.\" THIS SOFTWARE IS PROVIDED BY THE AUTHORS AND CONTRIBUTORS ``AS IS'' AND
14
+
.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
15
+
.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
16
+
.\" ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHORS OR CONTRIBUTORS BE LIABLE
17
+
.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
18
+
.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
19
+
.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
20
+
.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
21
+
.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
22
+
.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
23
+
.\" SUCH DAMAGE.
24
+
.\"
25
+
.\" $FreeBSD: src/lib/libutil/pidfile.3,v 1.5 2006/03/04 15:20:28 keramida Exp $
26
+
.\"
27
+
.Dd August 22, 2005
28
+
.Dt PIDFILE 3
29
+
.Os
30
+
.Sh NAME
31
+
.Nm pidfile_open ,
32
+
.Nm pidfile_write ,
33
+
.Nm pidfile_close ,
34
+
.Nm pidfile_remove
35
+
.Nd "library for PID files handling"
36
+
.Sh LIBRARY
37
+
.Lb libutil
38
+
.Sh SYNOPSIS
39
+
.In sys/param.h
40
+
.In libutil.h
41
+
.Ft "struct pidfh *"
42
+
.Fn pidfile_open "const char *path" "mode_t mode" "pid_t *pidptr"
43
+
.Ft int
44
+
.Fn pidfile_write "struct pidfh *pfh"
45
+
.Ft int
46
+
.Fn pidfile_close "struct pidfh *pfh"
47
+
.Ft int
48
+
.Fn pidfile_remove "struct pidfh *pfh"
49
+
.Sh DESCRIPTION
50
+
The
51
+
.Nm pidfile
52
+
family of functions allows daemons to handle PID files.
53
+
It uses
54
+
.Xr flock 2
55
+
to lock a pidfile and detect already running daemons.
56
+
.Pp
57
+
The
58
+
.Fn pidfile_open
59
+
function opens (or creates) a file specified by the
60
+
.Fa path
61
+
argument and locks it with the
62
+
.Xr flock 2
63
+
system call.
64
+
If a file can not be locked, a PID of an already running daemon is returned in
65
+
the
66
+
.Fa pidptr
67
+
argument (if it is not
68
+
.Dv NULL ) .
69
+
The function does not write process' PID into the file here, so it can be
70
+
used before
71
+
.Fn fork Ns ing
72
+
and exit with a proper error message when needed.
73
+
If the
74
+
.Fa path
75
+
argument is
76
+
.Dv NULL ,
77
+
.Pa /var/run/ Ns Ao Va progname Ac Ns Pa .pid
78
+
file will be used.
79
+
.Pp
80
+
The
81
+
.Fn pidfile_write
82
+
function writes process' PID into a previously opened file.
83
+
.Pp
84
+
The
85
+
.Fn pidfile_close
86
+
function closes a pidfile.
87
+
It should be used after daemon
88
+
.Fn fork Ns s
89
+
to start a child process.
90
+
.Pp
91
+
The
92
+
.Fn pidfile_remove
93
+
function closes and removes a pidfile.
94
+
.Sh RETURN VALUES
95
+
The
96
+
.Fn pidfile_open
97
+
function returns a valid pointer to a
98
+
.Vt pidfh
99
+
structure on success, or
100
+
.Dv NULL
101
+
if an error occurs.
102
+
If an error occurs,
103
+
.Va errno
104
+
will be set.
105
+
.Rv -std pidfile_write pidfile_close pidfile_remove
106
+
.Sh EXAMPLES
107
+
The following example shows in which order these functions should be used.
108
+
Note that it is safe to pass
109
+
.Dv NULL
110
+
to
111
+
.Fn pidfile_write ,
112
+
.Fn pidfile_remove
113
+
and
114
+
.Fn pidfile_close
115
+
functions.
116
+
.Bd -literal
117
+
struct pidfh *pfh;
118
+
pid_t otherpid, childpid;
119
+
120
+
pfh = pidfile_open("/var/run/daemon.pid", 0600, &otherpid);
121
+
if (pfh == NULL) {
122
+
if (errno == EEXIST) {
123
+
errx(EXIT_FAILURE, "Daemon already running, pid: %jd.",
124
+
(intmax_t)otherpid);
125
+
}
126
+
/* If we cannot create pidfile from other reasons, only warn. */
127
+
warn("Cannot open or create pidfile");
128
+
}
129
+
130
+
if (daemon(0, 0) == -1) {
131
+
warn("Cannot daemonize");
132
+
pidfile_remove(pfh);
133
+
exit(EXIT_FAILURE);
134
+
}
135
+
136
+
pidfile_write(pfh);
137
+
138
+
for (;;) {
139
+
/* Do work. */
140
+
childpid = fork();
141
+
switch (childpid) {
142
+
case -1:
143
+
syslog(LOG_ERR, "Cannot fork(): %s.", strerror(errno));
144
+
break;
145
+
case 0:
146
+
pidfile_close(pfh);
147
+
/* Do child work. */
148
+
break;
149
+
default:
150
+
syslog(LOG_INFO, "Child %jd started.", (intmax_t)childpid);
151
+
break;
152
+
}
153
+
}
154
+
155
+
pidfile_remove(pfh);
156
+
exit(EXIT_SUCCESS);
157
+
.Ed
158
+
.Sh ERRORS
159
+
The
160
+
.Fn pidfile_open
161
+
function will fail if:
162
+
.Bl -tag -width Er
163
+
.It Bq Er EEXIST
164
+
Some process already holds the lock on the given pidfile, meaning that a
165
+
daemon is already running.
166
+
.It Bq Er ENAMETOOLONG
167
+
Specified pidfile's name is too long.
168
+
.It Bq Er EINVAL
169
+
Some process already holds the lock on the given pidfile, but PID read
170
+
from there is invalid.
171
+
.El
172
+
.Pp
173
+
The
174
+
.Fn pidfile_open
175
+
function may also fail and set
176
+
.Va errno
177
+
for any errors specified for the
178
+
.Xr fstat 2 ,
179
+
.Xr open 2 ,
180
+
and
181
+
.Xr read 2
182
+
calls.
183
+
.Pp
184
+
The
185
+
.Fn pidfile_write
186
+
function will fail if:
187
+
.Bl -tag -width Er
188
+
.It Bq Er EDOOFUS
189
+
Improper function use.
190
+
Probably called before
191
+
.Fn pidfile_open .
192
+
.El
193
+
.Pp
194
+
The
195
+
.Fn pidfile_write
196
+
function may also fail and set
197
+
.Va errno
198
+
for any errors specified for the
199
+
.Xr fstat 2 ,
200
+
.Xr ftruncate 2 ,
201
+
and
202
+
.Xr write 2
203
+
calls.
204
+
.Pp
205
+
The
206
+
.Fn pidfile_close
207
+
function may fail and set
208
+
.Va errno
209
+
for any errors specified for the
210
+
.Xr close 2
211
+
and
212
+
.Xr fstat 2
213
+
calls.
214
+
.Pp
215
+
The
216
+
.Fn pidfile_remove
217
+
function will fail if:
218
+
.Bl -tag -width Er
219
+
.It Bq Er EDOOFUS
220
+
Improper function use.
221
+
Probably called not from the process which made
222
+
.Fn pidfile_write .
223
+
.El
224
+
.Pp
225
+
The
226
+
.Fn pidfile_remove
227
+
function may also fail and set
228
+
.Va errno
229
+
for any errors specified for the
230
+
.Xr close 2 ,
231
+
.Xr flock 2 ,
232
+
.Xr fstat 2 ,
233
+
.Xr write 2 ,
234
+
and
235
+
.Xr unlink 2
236
+
calls.
237
+
.Sh SEE ALSO
238
+
.Xr flock 2 ,
239
+
.Xr open 2 ,
240
+
.Xr daemon 3
241
+
.Sh AUTHORS
242
+
.An -nosplit
243
+
The
244
+
.Nm pidfile
245
+
functionality is based on ideas from
246
+
.An John-Mark Gurney Aq jmg@FreeBSD.org .
247
+
.Pp
248
+
The code and manual page was written by
249
+
.An Pawel Jakub Dawidek Aq pjd@FreeBSD.org .
+243
src/libutil/pidfile.c
+243
src/libutil/pidfile.c
···
1
+
/*-
2
+
* Copyright (c) 2005 Pawel Jakub Dawidek <pjd@FreeBSD.org>
3
+
* All rights reserved.
4
+
*
5
+
* Redistribution and use in source and binary forms, with or without
6
+
* modification, are permitted provided that the following conditions
7
+
* are met:
8
+
* 1. Redistributions of source code must retain the above copyright
9
+
* notice, this list of conditions and the following disclaimer.
10
+
* 2. Redistributions in binary form must reproduce the above copyright
11
+
* notice, this list of conditions and the following disclaimer in the
12
+
* documentation and/or other materials provided with the distribution.
13
+
*
14
+
* THIS SOFTWARE IS PROVIDED BY THE AUTHORS AND CONTRIBUTORS ``AS IS'' AND
15
+
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
16
+
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
17
+
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHORS OR CONTRIBUTORS BE LIABLE
18
+
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
19
+
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
20
+
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
21
+
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
22
+
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
23
+
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
24
+
* SUCH DAMAGE.
25
+
*/
26
+
27
+
#include <sys/cdefs.h>
28
+
29
+
#include <sys/param.h>
30
+
#include <sys/file.h>
31
+
#include <sys/stat.h>
32
+
33
+
#include <stdio.h>
34
+
#include <stdlib.h>
35
+
#include <unistd.h>
36
+
#include <fcntl.h>
37
+
#include <string.h>
38
+
#include <err.h>
39
+
#include <errno.h>
40
+
#include <libutil.h>
41
+
42
+
static int _pidfile_remove(struct pidfh *pfh, int freeit);
43
+
44
+
static int
45
+
pidfile_verify(struct pidfh *pfh)
46
+
{
47
+
struct stat sb;
48
+
49
+
if (pfh == NULL || pfh->pf_fd == -1)
50
+
return EINVAL;
51
+
/*
52
+
* Check remembered descriptor.
53
+
*/
54
+
if (fstat(pfh->pf_fd, &sb) == -1)
55
+
return (errno);
56
+
if (sb.st_dev != pfh->pf_dev || sb.st_ino != pfh->pf_ino)
57
+
return EINVAL;
58
+
return (0);
59
+
}
60
+
61
+
static int
62
+
pidfile_read(const char *path, pid_t *pidptr)
63
+
{
64
+
char buf[16], *endptr;
65
+
int error, fd, i;
66
+
67
+
fd = open(path, O_RDONLY);
68
+
if (fd == -1)
69
+
return (errno);
70
+
71
+
i = read(fd, buf, sizeof(buf) - 1);
72
+
error = errno; /* Remember errno in case close() wants to change it. */
73
+
close(fd);
74
+
if (i == -1)
75
+
return (error);
76
+
buf[i] = '\0';
77
+
78
+
*pidptr = strtol(buf, &endptr, 10);
79
+
if (endptr != &buf[i])
80
+
return (EINVAL);
81
+
82
+
return (0);
83
+
}
84
+
85
+
struct pidfh *
86
+
pidfile_open(const char *path, mode_t mode, pid_t *pidptr)
87
+
{
88
+
struct pidfh *pfh;
89
+
struct stat sb;
90
+
int error, fd;
91
+
92
+
pfh = malloc(sizeof(*pfh));
93
+
if (pfh == NULL)
94
+
return (NULL);
95
+
96
+
if (path == NULL) {
97
+
snprintf(pfh->pf_path, sizeof(pfh->pf_path), "/var/run/%s.pid",
98
+
getprogname());
99
+
} else {
100
+
strlcpy(pfh->pf_path, path, sizeof(pfh->pf_path));
101
+
}
102
+
if (strlen(pfh->pf_path) == sizeof(pfh->pf_path) - 1) {
103
+
free(pfh);
104
+
errno = ENAMETOOLONG;
105
+
return (NULL);
106
+
}
107
+
108
+
/*
109
+
* Open the PID file and obtain exclusive lock.
110
+
* We truncate PID file here only to remove old PID immediatelly,
111
+
* PID file will be truncated again in pidfile_write(), so
112
+
* pidfile_write() can be called multiple times.
113
+
*/
114
+
fd = open(pfh->pf_path,
115
+
O_WRONLY | O_CREAT | O_EXLOCK | O_TRUNC | O_NONBLOCK, mode);
116
+
if (fd == -1) {
117
+
if (errno == EWOULDBLOCK && pidptr != NULL) {
118
+
errno = pidfile_read(pfh->pf_path, pidptr);
119
+
if (errno == 0)
120
+
errno = EEXIST;
121
+
}
122
+
free(pfh);
123
+
return (NULL);
124
+
}
125
+
/*
126
+
* Remember file information, so in pidfile_write() we are sure we write
127
+
* to the proper descriptor.
128
+
*/
129
+
if (fstat(fd, &sb) == -1) {
130
+
error = errno;
131
+
unlink(pfh->pf_path);
132
+
close(fd);
133
+
free(pfh);
134
+
errno = error;
135
+
return (NULL);
136
+
}
137
+
138
+
pfh->pf_fd = fd;
139
+
pfh->pf_dev = sb.st_dev;
140
+
pfh->pf_ino = sb.st_ino;
141
+
142
+
return (pfh);
143
+
}
144
+
145
+
int
146
+
pidfile_write(struct pidfh *pfh)
147
+
{
148
+
char pidstr[16];
149
+
int error, fd;
150
+
151
+
/*
152
+
* Check remembered descriptor, so we don't overwrite some other
153
+
* file if pidfile was closed and descriptor reused.
154
+
*/
155
+
errno = pidfile_verify(pfh);
156
+
if (errno != 0) {
157
+
/*
158
+
* Don't close descriptor, because we are not sure if it's ours.
159
+
*/
160
+
return (-1);
161
+
}
162
+
fd = pfh->pf_fd;
163
+
164
+
/*
165
+
* Truncate PID file, so multiple calls of pidfile_write() are allowed.
166
+
*/
167
+
if (ftruncate(fd, 0) == -1) {
168
+
error = errno;
169
+
_pidfile_remove(pfh, 0);
170
+
errno = error;
171
+
return (-1);
172
+
}
173
+
174
+
snprintf(pidstr, sizeof(pidstr), "%u", getpid());
175
+
if (pwrite(fd, pidstr, strlen(pidstr), 0) != (ssize_t)strlen(pidstr)) {
176
+
error = errno;
177
+
_pidfile_remove(pfh, 0);
178
+
errno = error;
179
+
return (-1);
180
+
}
181
+
182
+
return (0);
183
+
}
184
+
185
+
int
186
+
pidfile_close(struct pidfh *pfh)
187
+
{
188
+
int error;
189
+
190
+
error = pidfile_verify(pfh);
191
+
if (error != 0) {
192
+
errno = error;
193
+
return (-1);
194
+
}
195
+
196
+
if (close(pfh->pf_fd) == -1)
197
+
error = errno;
198
+
free(pfh);
199
+
if (error != 0) {
200
+
errno = error;
201
+
return (-1);
202
+
}
203
+
return (0);
204
+
}
205
+
206
+
static int
207
+
_pidfile_remove(struct pidfh *pfh, int freeit)
208
+
{
209
+
int error;
210
+
211
+
error = pidfile_verify(pfh);
212
+
if (error != 0) {
213
+
errno = error;
214
+
return (-1);
215
+
}
216
+
217
+
if (unlink(pfh->pf_path) == -1)
218
+
error = errno;
219
+
if (flock(pfh->pf_fd, LOCK_UN) == -1) {
220
+
if (error == 0)
221
+
error = errno;
222
+
}
223
+
if (close(pfh->pf_fd) == -1) {
224
+
if (error == 0)
225
+
error = errno;
226
+
}
227
+
if (freeit)
228
+
free(pfh);
229
+
else
230
+
pfh->pf_fd = -1;
231
+
if (error != 0) {
232
+
errno = error;
233
+
return (-1);
234
+
}
235
+
return (0);
236
+
}
237
+
238
+
int
239
+
pidfile_remove(struct pidfh *pfh)
240
+
{
241
+
242
+
return (_pidfile_remove(pfh, 1));
243
+
}
+105
src/libutil/realhostname.3
+105
src/libutil/realhostname.3
···
1
+
.\" Copyright (c) 1999 Brian Somers <brian@Awfulhak.org>
2
+
.\" All rights reserved.
3
+
.\"
4
+
.\" Redistribution and use in source and binary forms, with or without
5
+
.\" modification, are permitted provided that the following conditions
6
+
.\" are met:
7
+
.\" 1. Redistributions of source code must retain the above copyright
8
+
.\" notice, this list of conditions and the following disclaimer.
9
+
.\" 2. Redistributions in binary form must reproduce the above copyright
10
+
.\" notice, this list of conditions and the following disclaimer in the
11
+
.\" documentation and/or other materials provided with the distribution.
12
+
.\"
13
+
.\" THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
14
+
.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
15
+
.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
16
+
.\" ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
17
+
.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
18
+
.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
19
+
.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
20
+
.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
21
+
.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
22
+
.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
23
+
.\" SUCH DAMAGE.
24
+
.\"
25
+
.\" $FreeBSD: src/lib/libutil/realhostname.3,v 1.10 2005/02/13 22:25:14 ru Exp $
26
+
.\"
27
+
.Dd April 6, 1999
28
+
.Os
29
+
.Dt REALHOSTNAME 3
30
+
.Sh NAME
31
+
.Nm realhostname
32
+
.Nd "convert an IP number to the real host name"
33
+
.Sh LIBRARY
34
+
.Lb libutil
35
+
.Sh SYNOPSIS
36
+
.In sys/types.h
37
+
.In netinet/in.h
38
+
.In libutil.h
39
+
.Ft int
40
+
.Fn realhostname "char *host" "size_t hsize" "const struct in_addr *ip"
41
+
.Sh DESCRIPTION
42
+
The function
43
+
.Fn realhostname
44
+
converts
45
+
.Ar ip
46
+
to the corresponding host name.
47
+
This is done by resolving
48
+
.Ar ip
49
+
to a host name and then ensuring that the host name resolves
50
+
back to
51
+
.Ar ip .
52
+
.Pp
53
+
.Ar host
54
+
must point to a buffer of at least
55
+
.Ar hsize
56
+
bytes, and will always be written to by this function.
57
+
.Pp
58
+
If the name resolution does not work both ways or if the host name is longer
59
+
than
60
+
.Ar hsize
61
+
bytes,
62
+
.Xr inet_ntoa 3
63
+
is used to convert
64
+
.Ar ip
65
+
to an ASCII form.
66
+
.Pp
67
+
If the string written to
68
+
.Ar host
69
+
is
70
+
.Ar hsize
71
+
bytes long,
72
+
.Ar host
73
+
will not be NUL terminated.
74
+
.Sh RETURN VALUES
75
+
The
76
+
.Fn realhostname
77
+
function will return one of the following constants which are defined in
78
+
.In libutil.h :
79
+
.Pp
80
+
.Bl -tag -width XXX -offset XXX
81
+
.It Li HOSTNAME_FOUND
82
+
A valid host name was found.
83
+
.It Li HOSTNAME_INCORRECTNAME
84
+
A host name was found, but it did not resolve back to the passed
85
+
.Ar ip .
86
+
.Ar host
87
+
now contains the numeric value of
88
+
.Ar ip .
89
+
.It Li HOSTNAME_INVALIDADDR
90
+
.Ar ip
91
+
could not be resolved.
92
+
.Ar host
93
+
now contains the numeric value of
94
+
.Ar ip .
95
+
.It Li HOSTNAME_INVALIDNAME
96
+
A host name was found, but it could not be resolved back to any ip number.
97
+
.Ar host
98
+
now contains the numeric value of
99
+
.Ar ip .
100
+
.El
101
+
.Sh SEE ALSO
102
+
.Xr gethostbyaddr 3 ,
103
+
.Xr gethostbyname 3 ,
104
+
.Xr inet_ntoa 3 ,
105
+
.Xr realhostname_sa 3
+186
src/libutil/realhostname.c
+186
src/libutil/realhostname.c
···
1
+
/*-
2
+
* Copyright (c) 1999 Brian Somers <brian@Awfulhak.org>
3
+
* All rights reserved.
4
+
*
5
+
* Redistribution and use in source and binary forms, with or without
6
+
* modification, are permitted provided that the following conditions
7
+
* are met:
8
+
* 1. Redistributions of source code must retain the above copyright
9
+
* notice, this list of conditions and the following disclaimer.
10
+
* 2. Redistributions in binary form must reproduce the above copyright
11
+
* notice, this list of conditions and the following disclaimer in the
12
+
* documentation and/or other materials provided with the distribution.
13
+
*
14
+
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
15
+
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
16
+
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
17
+
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
18
+
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
19
+
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
20
+
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
21
+
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
22
+
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
23
+
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
24
+
* SUCH DAMAGE.
25
+
*/
26
+
27
+
#include <sys/cdefs.h>
28
+
29
+
#include <sys/param.h>
30
+
#include <sys/socket.h>
31
+
32
+
#include <netdb.h>
33
+
#include <netinet/in.h>
34
+
#include <arpa/inet.h>
35
+
36
+
#include <stdio.h>
37
+
#include <string.h>
38
+
39
+
#include "libutil.h"
40
+
41
+
struct sockinet {
42
+
u_char si_len;
43
+
u_char si_family;
44
+
u_short si_port;
45
+
};
46
+
47
+
void trimdomain(char *_fullhost, size_t _hostsize);
48
+
49
+
int
50
+
realhostname(char *host, size_t hsize, const struct in_addr *ip)
51
+
{
52
+
char trimmed[MAXHOSTNAMELEN];
53
+
int result;
54
+
struct hostent *hp;
55
+
56
+
result = HOSTNAME_INVALIDADDR;
57
+
hp = gethostbyaddr((const char *)ip, sizeof(*ip), AF_INET);
58
+
59
+
if (hp != NULL) {
60
+
strlcpy(trimmed, hp->h_name, sizeof(trimmed));
61
+
trimdomain(trimmed, strlen(trimmed));
62
+
if (strlen(trimmed) <= hsize) {
63
+
char lookup[MAXHOSTNAMELEN];
64
+
65
+
strncpy(lookup, hp->h_name, sizeof(lookup) - 1);
66
+
lookup[sizeof(lookup) - 1] = '\0';
67
+
hp = gethostbyname(lookup);
68
+
if (hp == NULL)
69
+
result = HOSTNAME_INVALIDNAME;
70
+
else for (; ; hp->h_addr_list++) {
71
+
if (*hp->h_addr_list == NULL) {
72
+
result = HOSTNAME_INCORRECTNAME;
73
+
break;
74
+
}
75
+
if (!memcmp(*hp->h_addr_list, ip, sizeof(*ip))) {
76
+
strncpy(host, trimmed, hsize);
77
+
return HOSTNAME_FOUND;
78
+
}
79
+
}
80
+
}
81
+
}
82
+
83
+
strncpy(host, inet_ntoa(*ip), hsize);
84
+
85
+
return result;
86
+
}
87
+
88
+
int
89
+
realhostname_sa(char *host, size_t hsize, struct sockaddr *addr, int addrlen)
90
+
{
91
+
int result, error;
92
+
char buf[NI_MAXHOST];
93
+
94
+
result = HOSTNAME_INVALIDADDR;
95
+
96
+
#ifdef INET6
97
+
/* IPv4 mapped IPv6 addr consideraton, specified in rfc2373. */
98
+
if (addr->sa_family == AF_INET6 &&
99
+
addrlen == sizeof(struct sockaddr_in6) &&
100
+
IN6_IS_ADDR_V4MAPPED(&((struct sockaddr_in6 *)addr)->sin6_addr)) {
101
+
struct sockaddr_in6 *sin6;
102
+
103
+
sin6 = (struct sockaddr_in6 *)addr;
104
+
105
+
memset(&lsin, 0, sizeof(lsin));
106
+
lsin.sin_len = sizeof(struct sockaddr_in);
107
+
lsin.sin_family = AF_INET;
108
+
lsin.sin_port = sin6->sin6_port;
109
+
memcpy(&lsin.sin_addr, &sin6->sin6_addr.s6_addr[12],
110
+
sizeof(struct in_addr));
111
+
addr = (struct sockaddr *)&lsin;
112
+
addrlen = lsin.sin_len;
113
+
}
114
+
#endif
115
+
116
+
error = getnameinfo(addr, addrlen, buf, sizeof(buf), NULL, 0,
117
+
NI_NAMEREQD);
118
+
if (error == 0) {
119
+
struct addrinfo hints, *res, *ores;
120
+
struct sockaddr *sa;
121
+
122
+
memset(&hints, 0, sizeof(struct addrinfo));
123
+
hints.ai_family = addr->sa_family;
124
+
hints.ai_flags = AI_CANONNAME | AI_PASSIVE;
125
+
hints.ai_socktype = SOCK_STREAM;
126
+
127
+
error = getaddrinfo(buf, NULL, &hints, &res);
128
+
if (error) {
129
+
result = HOSTNAME_INVALIDNAME;
130
+
goto numeric;
131
+
}
132
+
for (ores = res; ; res = res->ai_next) {
133
+
if (res == NULL) {
134
+
freeaddrinfo(ores);
135
+
result = HOSTNAME_INCORRECTNAME;
136
+
goto numeric;
137
+
}
138
+
sa = res->ai_addr;
139
+
if (sa == NULL) {
140
+
freeaddrinfo(ores);
141
+
result = HOSTNAME_INCORRECTNAME;
142
+
goto numeric;
143
+
}
144
+
if (sa->sa_len == addrlen &&
145
+
sa->sa_family == addr->sa_family) {
146
+
((struct sockinet *)sa)->si_port = ((struct sockinet *)addr)->si_port;
147
+
#ifdef INET6
148
+
/*
149
+
* XXX: sin6_socpe_id may not been
150
+
* filled by DNS
151
+
*/
152
+
if (sa->sa_family == AF_INET6 &&
153
+
((struct sockaddr_in6 *)sa)->sin6_scope_id == 0)
154
+
((struct sockaddr_in6 *)sa)->sin6_scope_id = ((struct sockaddr_in6 *)addr)->sin6_scope_id;
155
+
#endif
156
+
if (!memcmp(sa, addr, sa->sa_len)) {
157
+
result = HOSTNAME_FOUND;
158
+
if (ores->ai_canonname == NULL) {
159
+
freeaddrinfo(ores);
160
+
goto numeric;
161
+
}
162
+
strlcpy(buf, ores->ai_canonname,
163
+
sizeof(buf));
164
+
trimdomain(buf, hsize);
165
+
if (strlen(buf) > hsize &&
166
+
addr->sa_family == AF_INET) {
167
+
freeaddrinfo(ores);
168
+
goto numeric;
169
+
}
170
+
strncpy(host, buf, hsize);
171
+
break;
172
+
}
173
+
}
174
+
}
175
+
freeaddrinfo(ores);
176
+
} else {
177
+
numeric:
178
+
if (getnameinfo(addr, addrlen, buf, sizeof(buf), NULL, 0,
179
+
NI_NUMERICHOST) == 0)
180
+
strncpy(host, buf, hsize);
181
+
}
182
+
183
+
return result;
184
+
}
185
+
186
+
+133
src/libutil/realhostname_sa.3
+133
src/libutil/realhostname_sa.3
···
1
+
.\" Copyright (C) 1995, 1996, 1997, 1998, 1999, and 2000 WIDE Project.
2
+
.\" All rights reserved.
3
+
.\"
4
+
.\" Redistribution and use in source and binary forms, with or without
5
+
.\" modification, are permitted provided that the following conditions
6
+
.\" are met:
7
+
.\" 1. Redistributions of source code must retain the above copyright
8
+
.\" notice, this list of conditions and the following disclaimer.
9
+
.\" 2. Redistributions in binary form must reproduce the above copyright
10
+
.\" notice, this list of conditions and the following disclaimer in the
11
+
.\" documentation and/or other materials provided with the distribution.
12
+
.\" 3. Neither the name of the project nor the names of its contributors
13
+
.\" may be used to endorse or promote products derived from this software
14
+
.\" without specific prior written permission.
15
+
.\"
16
+
.\" THIS SOFTWARE IS PROVIDED BY THE PROJECT AND CONTRIBUTORS ``AS IS'' AND
17
+
.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
18
+
.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
19
+
.\" ARE DISCLAIMED. IN NO EVENT SHALL THE PROJECT OR CONTRIBUTORS BE LIABLE
20
+
.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
21
+
.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
22
+
.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
23
+
.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
24
+
.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
25
+
.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
26
+
.\" SUCH DAMAGE.
27
+
.\"
28
+
.\" Copyright (c) 1999 Brian Somers <brian@Awfulhak.org>
29
+
.\" All rights reserved.
30
+
.\"
31
+
.\" Redistribution and use in source and binary forms, with or without
32
+
.\" modification, are permitted provided that the following conditions
33
+
.\" are met:
34
+
.\" 1. Redistributions of source code must retain the above copyright
35
+
.\" notice, this list of conditions and the following disclaimer.
36
+
.\" 2. Redistributions in binary form must reproduce the above copyright
37
+
.\" notice, this list of conditions and the following disclaimer in the
38
+
.\" documentation and/or other materials provided with the distribution.
39
+
.\"
40
+
.\" THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
41
+
.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
42
+
.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
43
+
.\" ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
44
+
.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
45
+
.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
46
+
.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
47
+
.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
48
+
.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
49
+
.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
50
+
.\" SUCH DAMAGE.
51
+
.\"
52
+
.\" $FreeBSD: src/lib/libutil/realhostname_sa.3,v 1.11 2005/02/13 22:25:14 ru Exp $
53
+
.\"
54
+
.Dd January 11, 2000
55
+
.Os
56
+
.Dt REALHOSTNAME_SA 3
57
+
.Sh NAME
58
+
.Nm realhostname_sa
59
+
.Nd "convert a"
60
+
.Vt "struct sockaddr"
61
+
to the real host name
62
+
.Sh LIBRARY
63
+
.Lb libutil
64
+
.Sh SYNOPSIS
65
+
.In sys/types.h
66
+
.In netinet/in.h
67
+
.In libutil.h
68
+
.Ft int
69
+
.Fn realhostname_sa "char *host" "size_t hsize" "struct sockaddr *addr" "int addrlen"
70
+
.Sh DESCRIPTION
71
+
The function
72
+
.Fn realhostname_sa
73
+
converts
74
+
.Ar addr
75
+
to the corresponding host name.
76
+
This is done by resolving
77
+
.Ar addr
78
+
to a host name and then ensuring that the host name resolves
79
+
back to
80
+
.Ar addr .
81
+
.Pp
82
+
.Ar host
83
+
must point to a buffer of at least
84
+
.Ar hsize
85
+
bytes, and will always be written to by this function.
86
+
.Pp
87
+
If the name resolution does not work both ways or if the host name is longer
88
+
than
89
+
.Ar hsize
90
+
bytes,
91
+
.Xr getnameinfo 3
92
+
with NI_NUMERICHOST specified, is used to convert
93
+
.Ar addr
94
+
to an ASCII form.
95
+
.Pp
96
+
If the string written to
97
+
.Ar host
98
+
is
99
+
.Ar hsize
100
+
bytes long,
101
+
.Ar host
102
+
will not be NUL terminated.
103
+
.Sh RETURN VALUES
104
+
The
105
+
.Fn realhostname_sa
106
+
function will return one of the following constants which are defined in
107
+
.In libutil.h :
108
+
.Pp
109
+
.Bl -tag -width XXX -offset XXX
110
+
.It Li HOSTNAME_FOUND
111
+
A valid host name was found.
112
+
.It Li HOSTNAME_INCORRECTNAME
113
+
A host name was found, but it did not resolve back to the passed
114
+
.Ar ip .
115
+
.Ar host
116
+
now contains the numeric value of
117
+
.Ar ip .
118
+
.It Li HOSTNAME_INVALIDADDR
119
+
.Ar ip
120
+
could not be resolved.
121
+
.Ar host
122
+
now contains the numeric value of
123
+
.Ar ip .
124
+
.It Li HOSTNAME_INVALIDNAME
125
+
A host name was found, but it could not be resolved back to any ip number.
126
+
.Ar host
127
+
now contains the numeric value of
128
+
.Ar ip .
129
+
.El
130
+
.Sh SEE ALSO
131
+
.Xr getaddrinfo 3 ,
132
+
.Xr getnameinfo 3 ,
133
+
.Xr realhostname 3
+50
src/libutil/reexec_to_match_kernel.3
+50
src/libutil/reexec_to_match_kernel.3
···
1
+
.Dd Apr 14, 2008
2
+
.Dt REEXEC_TO_MATCH_KERNEL 3
3
+
.Os "Mac OS X"
4
+
.Sh NAME
5
+
.Nm reexec_to_match_kernel
6
+
.Nd Re-exec the current binary to match the ABI of the running kernel
7
+
.Sh LIBRARY
8
+
.Lb libutil
9
+
.Sh SYNOPSIS
10
+
.In libutil.h
11
+
.Ft int
12
+
.Fo reexec_to_match_kernel
13
+
.Fa "void"
14
+
.Fc
15
+
.Ft int
16
+
.Fo reexec_to_match_lp64ness
17
+
.Fa "bool isLP64"
18
+
.Fc
19
+
.Sh DESCRIPTION
20
+
The
21
+
.Fn reexec_to_match_kernel
22
+
function re-executes the current binary to match the ABI of the running kernel.
23
+
That is, if the current kernel is a 64-bit Intel kernel, it will attempt to
24
+
execute the 64-bit x86_64 userspace slice of the universal binary. The API
25
+
intentionally does not take arguments because its use should be transparent
26
+
to the program and to the user.
27
+
.Pp
28
+
The
29
+
.Fn reexec_to_match_lp64ness
30
+
is coarser-grained, and only attempts to match the word width that is requested.
31
+
For example, if the current system defaults to executing the 64-bit x86_64
32
+
userspace slice, but the program should instead run in 32-bit i386 mode,
33
+
this routine can be used.
34
+
.Pp
35
+
Both
36
+
.Fn reexec_to_match_kernel
37
+
and
38
+
.Fn reexec_to_match_lp64ness
39
+
can each be used exactly once in a program's lifetime. In certain circumstances,
40
+
it may even be desirable to use one, and then the other.
41
+
.Sh RETURN VALUES
42
+
The
43
+
.Fn reexec_to_match_kernel
44
+
and
45
+
.Fn reexec_to_match_lp64ness
46
+
functions return 0 if re-execution was not required. It returns -1 and
47
+
sets errno if there was an error performing the re-execution, for example
48
+
if the binary is not universal, or does not contain a slice to match the running
49
+
kernel's ABI. If the function succeeds, control never returns to the caller
50
+
and the program starts from main() again.
+215
src/libutil/reexec_to_match_kernel.c
+215
src/libutil/reexec_to_match_kernel.c
···
1
+
/*
2
+
* Copyright (c) 2008-2010 Apple Inc. All rights reserved.
3
+
*
4
+
* @APPLE_LICENSE_HEADER_START@
5
+
*
6
+
* This file contains Original Code and/or Modifications of Original Code
7
+
* as defined in and that are subject to the Apple Public Source License
8
+
* Version 2.0 (the 'License'). You may not use this file except in
9
+
* compliance with the License. Please obtain a copy of the License at
10
+
* http://www.opensource.apple.com/apsl/ and read it before using this
11
+
* file.
12
+
*
13
+
* The Original Code and all software distributed under the License are
14
+
* distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
15
+
* EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
16
+
* INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
17
+
* FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
18
+
* Please see the License for the specific language governing rights and
19
+
* limitations under the License.
20
+
*
21
+
* @APPLE_LICENSE_HEADER_END@
22
+
*/
23
+
24
+
#include <sys/cdefs.h>
25
+
26
+
#include <spawn.h>
27
+
#include <errno.h>
28
+
#include <crt_externs.h>
29
+
#include <mach/mach.h>
30
+
#include <mach-o/loader.h>
31
+
#include <mach-o/dyld.h>
32
+
#include <sys/sysctl.h>
33
+
#include <stdlib.h>
34
+
#include <stdio.h>
35
+
36
+
#include "libutil.h"
37
+
38
+
static cpu_type_t current_program_arch(void);
39
+
static cpu_type_t current_kernel_arch(void);
40
+
static int reexec(cpu_type_t cputype, const char *guardenv);
41
+
42
+
#define kReExecToMatchKernel "REEXEC_TO_MATCH_KERNEL"
43
+
#define kReExecToMatchLP64 "REEXEC_TO_MATCH_LP64NESS"
44
+
45
+
int reexec_to_match_kernel(void)
46
+
{
47
+
cpu_type_t kernarch, progarch;
48
+
char *alreadyenv;
49
+
50
+
alreadyenv = getenv(kReExecToMatchKernel);
51
+
if (alreadyenv) {
52
+
/* we've done this at least once, assume
53
+
another try won't help */
54
+
return 0;
55
+
}
56
+
57
+
kernarch = current_kernel_arch();
58
+
progarch = current_program_arch();
59
+
60
+
if (kernarch == 0) {
61
+
/* could not determine kernel arch */
62
+
errno = EINVAL;
63
+
return -1;
64
+
}
65
+
66
+
if (kernarch == progarch) {
67
+
/* nothing to do here */
68
+
return 0;
69
+
}
70
+
71
+
/* Now we need to re-exec */
72
+
return reexec(kernarch, kReExecToMatchKernel);
73
+
}
74
+
75
+
int reexec_to_match_lp64ness(bool isLP64)
76
+
{
77
+
cpu_type_t kernarch, progarch, targetarch;
78
+
char *alreadyenv;
79
+
80
+
alreadyenv = getenv(kReExecToMatchLP64);
81
+
if (alreadyenv) {
82
+
/* we've done this at least once, assume
83
+
another try won't help */
84
+
return 0;
85
+
}
86
+
87
+
kernarch = current_kernel_arch();
88
+
progarch = current_program_arch();
89
+
90
+
if (kernarch == 0) {
91
+
/* could not determine kernel arch */
92
+
errno = EINVAL;
93
+
return -1;
94
+
}
95
+
96
+
if (isLP64) {
97
+
targetarch = kernarch | CPU_ARCH_ABI64;
98
+
} else {
99
+
targetarch = kernarch & ~CPU_ARCH_ABI64;
100
+
}
101
+
102
+
if (targetarch == progarch) {
103
+
/* nothing to do here */
104
+
return 0;
105
+
}
106
+
107
+
/* Now we need to re-exec */
108
+
return reexec(targetarch, kReExecToMatchLP64);
109
+
}
110
+
111
+
static cpu_type_t current_program_arch(void)
112
+
{
113
+
cpu_type_t current_arch = (_NSGetMachExecuteHeader())->cputype;
114
+
115
+
return current_arch;
116
+
}
117
+
118
+
static cpu_type_t current_kernel_arch(void)
119
+
{
120
+
struct host_basic_info hi;
121
+
unsigned int size;
122
+
kern_return_t kret;
123
+
cpu_type_t current_arch;
124
+
int ret, mib[4];
125
+
size_t len;
126
+
struct kinfo_proc kp;
127
+
128
+
size = sizeof(hi)/sizeof(int);
129
+
kret = host_info(mach_host_self(), HOST_BASIC_INFO, (host_info_t)&hi, &size);
130
+
if (kret != KERN_SUCCESS) {
131
+
return 0;
132
+
}
133
+
134
+
current_arch = hi.cpu_type;
135
+
136
+
/* Now determine if the kernel is running in 64-bit mode */
137
+
mib[0] = CTL_KERN;
138
+
mib[1] = KERN_PROC;
139
+
mib[2] = KERN_PROC_PID;
140
+
mib[3] = 0; /* kernproc, pid 0 */
141
+
len = sizeof(kp);
142
+
ret = sysctl(mib, sizeof(mib)/sizeof(mib[0]), &kp, &len, NULL, 0);
143
+
if (ret == -1) {
144
+
return 0;
145
+
}
146
+
147
+
if (kp.kp_proc.p_flag & P_LP64) {
148
+
current_arch |= CPU_ARCH_ABI64;
149
+
}
150
+
151
+
return current_arch;
152
+
}
153
+
154
+
static int reexec(cpu_type_t cputype, const char *guardenv)
155
+
{
156
+
posix_spawnattr_t attr;
157
+
int ret, envcount;
158
+
size_t copied = 0;
159
+
char **argv, **oldenvp, **newenvp;
160
+
char execpath[MAXPATHLEN+1];
161
+
uint32_t execsize;
162
+
char guardstr[32];
163
+
164
+
argv = *_NSGetArgv();
165
+
oldenvp = *_NSGetEnviron();
166
+
for (envcount = 0; oldenvp[envcount]; envcount++);
167
+
// if there are 4 elements and a NULL, envcount will be 4
168
+
169
+
newenvp = calloc(envcount+2, sizeof(newenvp[0]));
170
+
for (envcount = 0; oldenvp[envcount]; envcount++) {
171
+
newenvp[envcount] = oldenvp[envcount];
172
+
}
173
+
174
+
snprintf(guardstr, sizeof(guardstr), "%s=1", guardenv);
175
+
newenvp[envcount++] = guardstr;
176
+
newenvp[envcount] = NULL;
177
+
178
+
execsize = (uint32_t)sizeof(execpath);
179
+
ret = _NSGetExecutablePath(execpath, &execsize);
180
+
if (ret != 0) {
181
+
return -1;
182
+
}
183
+
184
+
ret = posix_spawnattr_init(&attr);
185
+
if (ret != 0) {
186
+
return -1;
187
+
}
188
+
ret = posix_spawnattr_setflags(&attr, POSIX_SPAWN_SETEXEC);
189
+
if (ret != 0) {
190
+
return -1;
191
+
}
192
+
ret = posix_spawnattr_setbinpref_np(&attr, 1, &cputype, &copied);
193
+
if (ret != 0 || copied != 1) {
194
+
return -1;
195
+
}
196
+
197
+
#if 0
198
+
fprintf(stderr, "reexec: %s (arch=%d)\n", execpath, cputype);
199
+
for (envcount=0; newenvp[envcount]; envcount++) {
200
+
fprintf(stderr, "env[%d] = %s\n", envcount, newenvp[envcount]);
201
+
}
202
+
for (envcount=0; argv[envcount]; envcount++) {
203
+
fprintf(stderr, "argv[%d] = %s\n", envcount, argv[envcount]);
204
+
}
205
+
#endif
206
+
207
+
ret = posix_spawn(NULL, execpath, NULL, &attr, argv, newenvp);
208
+
if (ret != 0) {
209
+
errno = ret;
210
+
return -1;
211
+
}
212
+
213
+
/* should not be reached */
214
+
return 0;
215
+
}
+85
src/libutil/trimdomain.3
+85
src/libutil/trimdomain.3
···
1
+
.\" Copyright (c) 1999 Brian Somers <brian@Awfulhak.org>
2
+
.\" All rights reserved.
3
+
.\"
4
+
.\" Redistribution and use in source and binary forms, with or without
5
+
.\" modification, are permitted provided that the following conditions
6
+
.\" are met:
7
+
.\" 1. Redistributions of source code must retain the above copyright
8
+
.\" notice, this list of conditions and the following disclaimer.
9
+
.\" 2. Redistributions in binary form must reproduce the above copyright
10
+
.\" notice, this list of conditions and the following disclaimer in the
11
+
.\" documentation and/or other materials provided with the distribution.
12
+
.\"
13
+
.\" THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
14
+
.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
15
+
.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
16
+
.\" ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
17
+
.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
18
+
.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
19
+
.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
20
+
.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
21
+
.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
22
+
.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
23
+
.\" SUCH DAMAGE.
24
+
.\"
25
+
.\" $FreeBSD: src/lib/libutil/trimdomain.3,v 1.8 2004/07/02 23:52:20 ru Exp $
26
+
.\"
27
+
.Dd April 7, 1999
28
+
.Os
29
+
.Dt TRIMDOMAIN 3
30
+
.Sh NAME
31
+
.Nm trimdomain
32
+
.Nd "trim the current domain name from a host name"
33
+
.Sh LIBRARY
34
+
.Lb libutil
35
+
.Sh SYNOPSIS
36
+
.In sys/types.h
37
+
.In libutil.h
38
+
.Ft void
39
+
.Fn trimdomain "char *fullhost" "int hostsize"
40
+
.Sh DESCRIPTION
41
+
The function
42
+
.Fn trimdomain
43
+
removes the current domain name from the passed
44
+
.Ar fullhost
45
+
name by writing a
46
+
.Dv NUL
47
+
character over the first period of the passed name.
48
+
The current domain
49
+
name is determined by calling
50
+
.Xr gethostname 3
51
+
and removing everything up to the first period.
52
+
The name is determined
53
+
the first time this function is called and is cached for future use.
54
+
.Pp
55
+
The
56
+
.Fn trimdomain
57
+
function will only trim the domain name if the passed
58
+
.Ar fullname
59
+
ends with the current domain name and if the length of the resulting host
60
+
name does not exceed
61
+
.Ar hostsize .
62
+
.Pp
63
+
If the passed
64
+
.Ar fullname
65
+
is actually a
66
+
.Dv DISPLAY
67
+
specification of the form
68
+
.Sm off
69
+
.Ar host . domain : nn Oo .
70
+
.Ar nn
71
+
.Oc
72
+
.Sm on
73
+
and the domain name is the same as the local domain name,
74
+
.Fn trimdomain
75
+
will remove the embedded domain name, copying the screen and display
76
+
numbers to the end of the base host name and resulting in
77
+
.Sm off
78
+
.Ar host : nn Op . Ar nn .
79
+
.Sm on
80
+
.Sh RETURN VALUES
81
+
The
82
+
.Fn trimdomain
83
+
function does not return a value.
84
+
.Sh SEE ALSO
85
+
.Xr gethostname 3
+116
src/libutil/trimdomain.c
+116
src/libutil/trimdomain.c
···
1
+
/*-
2
+
* Copyright (c) 2001 Brian Somers <brian@Awfulhak.org>
3
+
* Based on original work by Atsushi Murai <amurai@FreeBSD.org>
4
+
* All rights reserved.
5
+
*
6
+
* Redistribution and use in source and binary forms, with or without
7
+
* modification, are permitted provided that the following conditions
8
+
* are met:
9
+
* 1. Redistributions of source code must retain the above copyright
10
+
* notice, this list of conditions and the following disclaimer.
11
+
* 2. Redistributions in binary form must reproduce the above copyright
12
+
* notice, this list of conditions and the following disclaimer in the
13
+
* documentation and/or other materials provided with the distribution.
14
+
*
15
+
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
16
+
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
17
+
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
18
+
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
19
+
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
20
+
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
21
+
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
22
+
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
23
+
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
24
+
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
25
+
* SUCH DAMAGE.
26
+
*
27
+
*/
28
+
29
+
#include <sys/cdefs.h>
30
+
31
+
#include <sys/param.h>
32
+
33
+
#include <libutil.h>
34
+
#include <string.h>
35
+
#include <unistd.h>
36
+
37
+
void trimdomain(char *_fullhost, size_t _hostsize);
38
+
39
+
static int isDISP(const char *);
40
+
41
+
/*-
42
+
* Trim the current domain name from fullhost, but only if the result
43
+
* is less than or equal to hostsize in length.
44
+
*
45
+
* This function understands $DISPLAY type fullhosts.
46
+
*
47
+
* For example:
48
+
*
49
+
* trimdomain("abcde.my.domain", 5) -> "abcde"
50
+
* trimdomain("abcde.my.domain", 4) -> "abcde.my.domain"
51
+
* trimdomain("abcde.my.domain:0.0", 9) -> "abcde:0.0"
52
+
* trimdomain("abcde.my.domain:0.0", 8) -> "abcde.my.domain:0.0"
53
+
*/
54
+
void
55
+
trimdomain(char *fullhost, size_t hostsize)
56
+
{
57
+
static size_t dlen;
58
+
static int first = 1;
59
+
static char domain[MAXHOSTNAMELEN];
60
+
char *end, *s;
61
+
size_t len;
62
+
63
+
if (first) {
64
+
/* XXX: Should we assume that our domain is this persistent ? */
65
+
first = 0;
66
+
if (gethostname(domain, sizeof(domain) - 1) == 0 &&
67
+
(s = strchr(domain, '.')) != NULL)
68
+
memmove(domain, s + 1, strlen(s + 1) + 1);
69
+
else
70
+
domain[0] = '\0';
71
+
dlen = strlen(domain);
72
+
}
73
+
74
+
if (domain[0] == '\0')
75
+
return;
76
+
77
+
s = fullhost;
78
+
end = (char *)((uintptr_t)s + hostsize + 1);
79
+
if ((s = memchr(s, '.', (size_t)(end - s))) != NULL) {
80
+
if (strncasecmp(s + 1, domain, dlen) == 0) {
81
+
if (s[dlen + 1] == '\0') {
82
+
/* Found -- lose the domain. */
83
+
*s = '\0';
84
+
} else if (s[dlen + 1] == ':' &&
85
+
isDISP(s + dlen + 2) &&
86
+
(len = strlen(s + dlen + 1)) < (size_t)(end - s)) {
87
+
/* Found -- shuffle the DISPLAY back. */
88
+
memmove(s, s + dlen + 1, len + 1);
89
+
}
90
+
}
91
+
}
92
+
}
93
+
94
+
/*
95
+
* Is the given string NN or NN.NN where ``NN'' is an all-numeric string ?
96
+
*/
97
+
static int
98
+
isDISP(const char *disp)
99
+
{
100
+
size_t w;
101
+
int res;
102
+
103
+
w = strspn(disp, "0123456789");
104
+
res = 0;
105
+
if (w > 0) {
106
+
if (disp[w] == '\0')
107
+
res = 1; /* NN */
108
+
else if (disp[w] == '.') {
109
+
disp += w + 1;
110
+
w = strspn(disp, "0123456789");
111
+
if (w > 0 && disp[w] == '\0')
112
+
res = 1; /* NN.NN */
113
+
}
114
+
}
115
+
return (res);
116
+
}
+70
src/libutil/tzlink.c
+70
src/libutil/tzlink.c
···
1
+
// Modified by Lubos Dolezel for Darling build
2
+
/*
3
+
* Copyright (c) 2013 Apple Inc. All rights reserved.
4
+
*
5
+
* @APPLE_LICENSE_HEADER_START@
6
+
*
7
+
* This file contains Original Code and/or Modifications of Original Code
8
+
* as defined in and that are subject to the Apple Public Source License
9
+
* Version 2.0 (the 'License'). You may not use this file except in
10
+
* compliance with the License. Please obtain a copy of the License at
11
+
* http://www.opensource.apple.com/apsl/ and read it before using this
12
+
* file.
13
+
*
14
+
* The Original Code and all software distributed under the License are
15
+
* distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
16
+
* EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
17
+
* INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
18
+
* FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
19
+
* Please see the License for the specific language governing rights and
20
+
* limitations under the License.
21
+
*
22
+
* @APPLE_LICENSE_HEADER_END@
23
+
*/
24
+
25
+
#include <TargetConditionals.h>
26
+
#if TARGET_OS_IPHONE && !TARGET_IPHONE_SIMULATOR
27
+
# include <xpc/xpc.h>
28
+
#endif
29
+
#include <errno.h>
30
+
31
+
#include "tzlink.h"
32
+
#include "tzlink_internal.h"
33
+
34
+
errno_t
35
+
tzlink(const char *tz)
36
+
{
37
+
#if TARGET_OS_IPHONE && !TARGET_IPHONE_SIMULATOR
38
+
xpc_connection_t connection;
39
+
xpc_object_t request, reply;
40
+
errno_t e;
41
+
42
+
if (tz == NULL) {
43
+
return EINVAL;
44
+
}
45
+
46
+
connection = xpc_connection_create_mach_service(TZLINK_SERVICE_NAME, NULL, XPC_CONNECTION_MACH_SERVICE_PRIVILEGED);
47
+
xpc_connection_set_event_handler(connection, ^(__unused xpc_object_t event) {
48
+
});
49
+
xpc_connection_resume(connection);
50
+
51
+
request = xpc_dictionary_create(NULL, NULL, 0);
52
+
xpc_dictionary_set_string(request, TZLINK_KEY_REQUEST_TIMEZONE, tz);
53
+
54
+
reply = xpc_connection_send_message_with_reply_sync(connection, request);
55
+
if (xpc_get_type(reply) == XPC_TYPE_DICTIONARY) {
56
+
e = (errno_t)xpc_dictionary_get_uint64(reply, TZLINK_KEY_REPLY_ERROR);
57
+
} else {
58
+
e = EIO;
59
+
}
60
+
61
+
xpc_release(reply);
62
+
xpc_release(request);
63
+
xpc_release(connection);
64
+
65
+
return e;
66
+
#else /* !TARGET_OS_IPHONE */
67
+
#pragma unused (tz)
68
+
return ENOTSUP;
69
+
#endif /* TARGET_OS_IPHONE */
70
+
}
+56
src/libutil/tzlink.h
+56
src/libutil/tzlink.h
···
1
+
/*
2
+
* Copyright (c) 2013 Apple Inc. All rights reserved.
3
+
*
4
+
* @APPLE_LICENSE_HEADER_START@
5
+
*
6
+
* This file contains Original Code and/or Modifications of Original Code
7
+
* as defined in and that are subject to the Apple Public Source License
8
+
* Version 2.0 (the 'License'). You may not use this file except in
9
+
* compliance with the License. Please obtain a copy of the License at
10
+
* http://www.opensource.apple.com/apsl/ and read it before using this
11
+
* file.
12
+
*
13
+
* The Original Code and all software distributed under the License are
14
+
* distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
15
+
* EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
16
+
* INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
17
+
* FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
18
+
* Please see the License for the specific language governing rights and
19
+
* limitations under the License.
20
+
*
21
+
* @APPLE_LICENSE_HEADER_END@
22
+
*/
23
+
24
+
#ifndef _TZLINK_H_
25
+
#define _TZLINK_H_
26
+
27
+
/*!
28
+
* @function tzlink
29
+
* Create the timezone link at TZDEFAULT
30
+
*
31
+
* @param tz
32
+
* New timezone, e.g. "America/Los_Angeles". This path is relative to TZDIR,
33
+
* and must not contain any relative path components or stray slashes.
34
+
* The file must exist and must be a valid timezone file with correct
35
+
* ownership (root:wheel) and permissions (0644).
36
+
*
37
+
* @result
38
+
* If the call succeeds, will return zero. Otherwise, returns an error:
39
+
* EINVAL: Invalid input, e.g. NULL or a path with relative components.
40
+
* ENAMETOOLONG: Input too long (generates a path > PATH_MAX)
41
+
* ENOENT: Specified file doesn't exist or fails owner/perm check.
42
+
* EPERM: Entitlement check failed.
43
+
* EIO: Failed to communicate with backing daemon.
44
+
* ENOTSUP: Always returned on OS X.
45
+
* And possibly others not documented here.
46
+
*
47
+
* @discussion
48
+
* This call can be used by any sufficiently-entitled client to overwrite
49
+
* the timezone link at TZDEFAULT (see <tzfile.h>). It communicates with a
50
+
* root daemon that does the necessary validation and file system work.
51
+
* Upon success, the "SignificantTimeChangeNotification" notification is
52
+
* posted.
53
+
*/
54
+
errno_t tzlink(const char *tz);
55
+
56
+
#endif /* !_TZLINK_H_ */
+29
src/libutil/tzlink_internal.h
+29
src/libutil/tzlink_internal.h
···
1
+
/*
2
+
* Copyright (c) 2013 Apple Inc. All rights reserved.
3
+
*
4
+
* @APPLE_LICENSE_HEADER_START@
5
+
*
6
+
* This file contains Original Code and/or Modifications of Original Code
7
+
* as defined in and that are subject to the Apple Public Source License
8
+
* Version 2.0 (the 'License'). You may not use this file except in
9
+
* compliance with the License. Please obtain a copy of the License at
10
+
* http://www.opensource.apple.com/apsl/ and read it before using this
11
+
* file.
12
+
*
13
+
* The Original Code and all software distributed under the License are
14
+
* distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
15
+
* EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
16
+
* INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
17
+
* FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
18
+
* Please see the License for the specific language governing rights and
19
+
* limitations under the License.
20
+
*
21
+
* @APPLE_LICENSE_HEADER_END@
22
+
*/
23
+
24
+
#define TZLINK_SERVICE_NAME "com.apple.tzlink"
25
+
26
+
#define TZLINK_ENTITLEMENT "com.apple.tzlink.allow"
27
+
28
+
#define TZLINK_KEY_REQUEST_TIMEZONE "tz" // string
29
+
#define TZLINK_KEY_REPLY_ERROR "error" // uint64
+26
src/libutil/tzlinkd/com.apple.tzlinkd.plist
+26
src/libutil/tzlinkd/com.apple.tzlinkd.plist
···
1
+
<?xml version="1.0" encoding="UTF-8"?>
2
+
<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
3
+
<plist version="1.0">
4
+
<dict>
5
+
<key>EnableTransactions</key>
6
+
<true/>
7
+
<key>JetsamProperties</key>
8
+
<dict>
9
+
<key>JetsamMemoryLimit</key>
10
+
<integer>300</integer>
11
+
<key>JetsamPriority</key>
12
+
<integer>-49</integer>
13
+
</dict>
14
+
<key>Label</key>
15
+
<string>com.apple.tzlinkd</string>
16
+
<key>MachServices</key>
17
+
<dict>
18
+
<key>com.apple.tzlink</key>
19
+
<true/>
20
+
</dict>
21
+
<key>POSIXSpawnType</key>
22
+
<string>Adaptive</string>
23
+
<key>Program</key>
24
+
<string>/usr/libexec/tzlinkd</string>
25
+
</dict>
26
+
</plist>
+11
src/libutil/tzlinkd/com.apple.tzlinkd.sb
+11
src/libutil/tzlinkd/com.apple.tzlinkd.sb
+10
src/libutil/tzlinkd/entitlements.plist
+10
src/libutil/tzlinkd/entitlements.plist
···
1
+
<?xml version="1.0" encoding="UTF-8"?>
2
+
<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
3
+
<plist version="1.0">
4
+
<dict>
5
+
<key>seatbelt-profiles</key>
6
+
<array>
7
+
<string>com.apple.tzlinkd</string>
8
+
</array>
9
+
</dict>
10
+
</plist>
+194
src/libutil/tzlinkd/tzlinkd.c
+194
src/libutil/tzlinkd/tzlinkd.c
···
1
+
/*
2
+
* Copyright (c) 2013 Apple Inc. All rights reserved.
3
+
*
4
+
* @APPLE_LICENSE_HEADER_START@
5
+
*
6
+
* This file contains Original Code and/or Modifications of Original Code
7
+
* as defined in and that are subject to the Apple Public Source License
8
+
* Version 2.0 (the 'License'). You may not use this file except in
9
+
* compliance with the License. Please obtain a copy of the License at
10
+
* http://www.opensource.apple.com/apsl/ and read it before using this
11
+
* file.
12
+
*
13
+
* The Original Code and all software distributed under the License are
14
+
* distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
15
+
* EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
16
+
* INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
17
+
* FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
18
+
* Please see the License for the specific language governing rights and
19
+
* limitations under the License.
20
+
*
21
+
* @APPLE_LICENSE_HEADER_END@
22
+
*/
23
+
24
+
#include <xpc/xpc.h>
25
+
#include <xpc/private.h>
26
+
#include <notify.h>
27
+
#include <tzfile.h>
28
+
29
+
#include "tzlink_internal.h"
30
+
31
+
static bool peer_entitled(xpc_connection_t);
32
+
static int set_timezone(const char *);
33
+
static int build_source_path(char *, size_t, const char *);
34
+
static int validate_source_path(const char *);
35
+
36
+
int
37
+
main(void)
38
+
{
39
+
dispatch_queue_t queue;
40
+
xpc_connection_t listener;
41
+
42
+
xpc_track_activity();
43
+
44
+
queue = dispatch_queue_create(TZLINK_SERVICE_NAME, NULL);
45
+
46
+
listener = xpc_connection_create_mach_service(TZLINK_SERVICE_NAME, queue, XPC_CONNECTION_MACH_SERVICE_LISTENER);
47
+
xpc_connection_set_event_handler(listener, ^(xpc_object_t peer) {
48
+
if (xpc_get_type(peer) != XPC_TYPE_CONNECTION) {
49
+
return;
50
+
}
51
+
52
+
xpc_connection_set_target_queue(peer, queue);
53
+
xpc_connection_set_event_handler(peer, ^(xpc_object_t request) {
54
+
xpc_object_t reply;
55
+
const char *tz;
56
+
int error;
57
+
58
+
if (xpc_get_type(request) != XPC_TYPE_DICTIONARY) {
59
+
return;
60
+
}
61
+
62
+
if (peer_entitled(peer)) {
63
+
tz = xpc_dictionary_get_string(request, TZLINK_KEY_REQUEST_TIMEZONE);
64
+
error = tz ? set_timezone(tz) : EINVAL;
65
+
} else {
66
+
error = EPERM;
67
+
}
68
+
69
+
reply = xpc_dictionary_create_reply(request);
70
+
xpc_dictionary_set_uint64(reply, TZLINK_KEY_REPLY_ERROR, (uint64_t)error);
71
+
xpc_connection_send_message(peer, reply);
72
+
xpc_release(reply);
73
+
});
74
+
xpc_connection_resume(peer);
75
+
});
76
+
xpc_connection_resume(listener);
77
+
78
+
dispatch_main();
79
+
}
80
+
81
+
static bool
82
+
peer_entitled(xpc_connection_t peer)
83
+
{
84
+
xpc_object_t val;
85
+
bool entitled;
86
+
87
+
entitled = false;
88
+
89
+
val = xpc_connection_copy_entitlement_value(peer, TZLINK_ENTITLEMENT);
90
+
if (val != NULL) {
91
+
entitled = xpc_bool_get_value(val);
92
+
xpc_release(val);
93
+
}
94
+
95
+
return entitled;
96
+
}
97
+
98
+
static int
99
+
set_timezone(const char *tz)
100
+
{
101
+
char srcpath[PATH_MAX];
102
+
int error;
103
+
104
+
error = build_source_path(srcpath, sizeof(srcpath), tz);
105
+
if (error != 0) {
106
+
return error;
107
+
}
108
+
109
+
error = validate_source_path(srcpath);
110
+
if (error != 0) {
111
+
return error;
112
+
}
113
+
114
+
(void)unlink(TZDEFAULT);
115
+
if (symlink(srcpath, TZDEFAULT) != 0) {
116
+
return errno ? errno : EFAULT;
117
+
}
118
+
119
+
/*
120
+
* notifyd posts "com.apple.system.timezone" automatically,
121
+
* but we also need post this. Sigh.
122
+
*/
123
+
(void)notify_post("SignificantTimeChangeNotification");
124
+
125
+
return 0;
126
+
}
127
+
128
+
/* Create path from input. */
129
+
static int
130
+
build_source_path(char *path, size_t size, const char *tz)
131
+
{
132
+
char *str, *str0;
133
+
char *pathcomp;
134
+
int error;
135
+
136
+
if (strlcpy(path, TZDIR, size) >= size) {
137
+
return ENAMETOOLONG;
138
+
}
139
+
140
+
error = 0;
141
+
142
+
/* Attempt to validate the input; construct a clean path as we go. */
143
+
str0 = str = strdup(tz);
144
+
while ((pathcomp = strsep(&str, "/")) != NULL) {
145
+
if (pathcomp[0] == '\0' || pathcomp[0] == '.') {
146
+
error = EINVAL;
147
+
break;
148
+
}
149
+
if (strlcat(path, "/", size) >= size) {
150
+
error = ENAMETOOLONG;
151
+
break;
152
+
}
153
+
if (strlcat(path, pathcomp, size) >= size) {
154
+
error = ENAMETOOLONG;
155
+
break;
156
+
}
157
+
}
158
+
free(str0);
159
+
160
+
return error;
161
+
}
162
+
163
+
/* Validate path. */
164
+
static int
165
+
validate_source_path(const char *path)
166
+
{
167
+
struct stat sb;
168
+
169
+
if (lstat(path, &sb) != 0) {
170
+
return errno ? errno : EFAULT;
171
+
}
172
+
173
+
/* Ensure that the time zone file is... */
174
+
175
+
/* ... a regular file. */
176
+
if (!S_ISREG(sb.st_mode)) {
177
+
return ENOENT;
178
+
}
179
+
180
+
/* ... owned by root:wheel */
181
+
if (sb.st_uid != 0 || sb.st_gid != 0) {
182
+
return ENOENT;
183
+
}
184
+
185
+
/* ... 0644 perms */
186
+
if ((sb.st_mode & ACCESSPERMS) != 0644) {
187
+
return ENOENT;
188
+
}
189
+
190
+
/* ... is a real tzfile (starts with TZif) */
191
+
// TODO: Validate contents of file.
192
+
193
+
return 0;
194
+
}
+162
src/libutil/wipefs.3
+162
src/libutil/wipefs.3
···
1
+
.\"
2
+
.\" Copyright (c) 2008,2011 Apple Inc. All rights reserved.
3
+
.\"
4
+
.\" @APPLE_LICENSE_HEADER_START@
5
+
.\"
6
+
.\" This file contains Original Code and/or Modifications of Original Code
7
+
.\" as defined in and that are subject to the Apple Public Source License
8
+
.\" Version 2.0 (the 'License'). You may not use this file except in
9
+
.\" compliance with the License. Please obtain a copy of the License at
10
+
.\" http://www.opensource.apple.com/apsl/ and read it before using this
11
+
.\" file.
12
+
.\"
13
+
.\" The Original Code and all software distributed under the License are
14
+
.\" distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
15
+
.\" EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
16
+
.\" INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
17
+
.\" FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
18
+
.\" Please see the License for the specific language governing rights and
19
+
.\" limitations under the License.
20
+
.\"
21
+
.\" @APPLE_LICENSE_HEADER_END@
22
+
.\"
23
+
.Dd 6/30/11 \" DATE
24
+
.Dt libutil 3 \" Program name and manual section number
25
+
.Os Mac OS X
26
+
.Sh NAME \" Section Header - required - don't modify
27
+
.\" The following lines are read in generating the apropos(man -k) database. Use only key
28
+
.\" words here as the database is built based on the words here and in the .ND line.
29
+
.Nm wipefs_alloc ,
30
+
.Nm wipefs_except_blocks ,
31
+
.Nm wipefs_wipe ,
32
+
.Nm wipefs_free
33
+
.\" Use .Nm macro to designate other names for the documented program.
34
+
.Nd wipes existing file systems on a volume
35
+
.Sh LIBRARY \" Section Header - required - don't modify
36
+
.Lb libutil
37
+
.Sh SYNOPSIS
38
+
.In wipefs.h
39
+
.Ft int
40
+
.Fo wipefs_alloc
41
+
.Fa "int fd"
42
+
.Fa "size_t block_size"
43
+
.Fa "wipefs_ctx *handle"
44
+
.Fc
45
+
.Ft int
46
+
.Fo wipefs_include_blocks
47
+
.Fa "wipefs_ctx handle"
48
+
.Fa "off_t block_offset"
49
+
.Fa "off_t nblocks"
50
+
.Fc
51
+
.Ft int
52
+
.Fo wipefs_except_blocks
53
+
.Fa "wipefs_ctx handle"
54
+
.Fa "off_t block_offset"
55
+
.Fa "off_t nblocks"
56
+
.Fc
57
+
.Ft int
58
+
.Fo wipefs_wipe
59
+
.Fa "wipefs_ctx handle"
60
+
.Fc
61
+
.Ft void
62
+
.Fo wipefs_free
63
+
.Fa "wipefs_ctx *handle"
64
+
.Fc
65
+
.Sh DESCRIPTION \" Section Header - required - don't modify
66
+
The wipefs family of functions wipe existing file systems on a volume. A
67
+
.Li DKIOCUNMAP
68
+
ioctl is sent to the device to invalidate all of its content.
69
+
Then zeroes are written to various locations that are used by various file systems to recognize their content and mount their volumes.
70
+
This is usually used by the newfs_* utilities before they create new file systems on the volume, so that the existing file system will not be mounted accidentally after the new file system is created.
71
+
.Pp
72
+
.Sy NOTE:
73
+
These routines do not overwrite all volume structures.
74
+
These routines do not securely erase the previous content.
75
+
They only overwrite enough to make sure that the normal utilities will no longer recognize any file system content.
76
+
It is possible that previous file system content could be recovered by other means.
77
+
.Pp
78
+
The
79
+
.Fn wipefs_alloc
80
+
function initializes a
81
+
.Fa wipefs_ctx
82
+
object (which is an opaque data type).
83
+
.Fa file_desc
84
+
is the file handle of the volume to be wiped, which can be a block device node, a character device node, or a file.
85
+
.Fa file_desc
86
+
must be opened with write access. If
87
+
.Fa block_size
88
+
is 0, this function calls
89
+
.Xr ioctl 2
90
+
to get the block size. A valid
91
+
.Fa block_size
92
+
must be supplied if
93
+
.Fa file_desc
94
+
is a regular file. This function does not write any data to the volume.
95
+
.Pp
96
+
The
97
+
.Fn wipefs_include_blocks
98
+
function tells wipefs to write zeroes in the block range provided, in addition to any other ranges
99
+
it would normally write. This may be more efficient than if the caller were to write this range
100
+
separately, especially if the block range overlaps or is contiguous with other ranges that wipefs
101
+
will write. This function does not write any data to the volume. If this function is called
102
+
multiple times, the union of all the ranges provided will be written by
103
+
.Fn wipefs_wipe .
104
+
.Pp
105
+
The
106
+
.Fn wipefs_except_blocks
107
+
function tells wipefs not to write anything in the block range provided. This function is used for performance
108
+
optimizations if the caller will write to these blocks. It is the caller's responsibility to write to these blocks.
109
+
Otherwise, some file systems may still be recognized on the volume. This function does not write any data to the
110
+
volume. If this function is called multiple times, the union of all the ranges provided will be excluded from being
111
+
written by
112
+
.Fn wipefs_wipe .
113
+
.Pp
114
+
The
115
+
.Fn wipefs_wipe
116
+
function sends a
117
+
.Li DKIOCUNMAP
118
+
ioctl and then writes data to the volume to wipe out existing file systems on it.
119
+
.Sy CAUTION:
120
+
this function destroys any file system or partition scheme on the volume represented by
121
+
.Fa file_desc .
122
+
If
123
+
.Fa file_desc
124
+
represents the entire disk (e.g. /dev/diskX), the partition map of the disk will be destroyed. If
125
+
.Fa file_desc
126
+
represents a partition (e.g., /dev/diskXsY), only the file system in that partition is destroyed. Although the partition scheme or file system on
127
+
.Fa file_desc
128
+
may be beyond repair after
129
+
.Fn wipefs_wipe ,
130
+
this function is not designed as a means to safely delete all data. It is possible that some user data (or intact file systems in some partitions) may still be recovered.
131
+
.Pp
132
+
The
133
+
.Fn wipefs_free
134
+
function frees the allocated
135
+
.Fa wipefs_ctx
136
+
handle and set
137
+
.Fa *handlep
138
+
to NULL.
139
+
.Sh RETURN VALUES
140
+
The
141
+
.Fn wipefs_alloc ,
142
+
.Fn wipefs_include_blocks ,
143
+
.Fn wipefs_except_blocks
144
+
and
145
+
.Fn wipefs_wipe
146
+
functions return 0 on success, or will fail and return an error code.
147
+
Each function may return
148
+
.Fa ENOMEM
149
+
if insufficient memory is available. In addition, if
150
+
.Fa block_size
151
+
is not provided,
152
+
.Fn wipefs_alloc
153
+
may return any error
154
+
.Xr ioctl 2
155
+
returns;
156
+
.Fn wipefs_wipe
157
+
may return any error
158
+
.Xr pwrite 2
159
+
returns.
160
+
.\" .Sh BUGS \" Document known, unremedied bugs
161
+
.\".Sh HISTORY \" Document history if command behaves in a unique manner
162
+
.\"The wipefs family of functions first appeared in Mac OS X Leopard (10.5.3).
+317
src/libutil/wipefs.cpp
+317
src/libutil/wipefs.cpp
···
1
+
/*
2
+
* Copyright (c) 2008 Apple Inc. All rights reserved.
3
+
*
4
+
* @APPLE_LICENSE_HEADER_START@
5
+
*
6
+
* This file contains Original Code and/or Modifications of Original Code
7
+
* as defined in and that are subject to the Apple Public Source License
8
+
* Version 2.0 (the 'License'). You may not use this file except in
9
+
* compliance with the License. Please obtain a copy of the License at
10
+
* http://www.opensource.apple.com/apsl/ and read it before using this
11
+
* file.
12
+
*
13
+
* The Original Code and all software distributed under the License are
14
+
* distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
15
+
* EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
16
+
* INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
17
+
* FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
18
+
* Please see the License for the specific language governing rights and
19
+
* limitations under the License.
20
+
*
21
+
* @APPLE_LICENSE_HEADER_END@
22
+
*/
23
+
//
24
+
// wipefs.cpp
25
+
//
26
+
27
+
#include <fcntl.h>
28
+
#include <unistd.h>
29
+
#include <sys/uio.h>
30
+
#include <sys/ioctl.h>
31
+
#include <sys/disk.h>
32
+
#include <sys/stat.h>
33
+
#include <cstring>
34
+
#include <strings.h>
35
+
36
+
#include "ExtentManager.h"
37
+
#include "wipefs.h"
38
+
39
+
#define roundup(x, y) ((((x)+((y)-1))/(y))*(y))
40
+
41
+
struct __wipefs_ctx {
42
+
int fd;
43
+
class ExtentManager extMan;
44
+
};
45
+
46
+
static void
47
+
AddExtentsForFutureFS(class ExtentManager *extMan)
48
+
{
49
+
// we don't know what blocks future FS will use to recognize itself. But we'd better be safe than sorry and write
50
+
// the first and last 2MB of the volume
51
+
off_t size = 2 * 1024 * 1024;
52
+
extMan->AddByteRangeExtent(0, size);
53
+
extMan->AddByteRangeExtent(extMan->totalBytes - size, size);
54
+
}
55
+
56
+
static void
57
+
AddExtentsForHFS(class ExtentManager *extMan)
58
+
{
59
+
// first 1KB is boot block, last 512B is reserved
60
+
// the Volume Header (512B) is after 1KB and before the last 512B
61
+
extMan->AddByteRangeExtent(0, 1024 + 512);
62
+
extMan->AddByteRangeExtent(extMan->totalBytes - 1024, 1024);
63
+
}
64
+
65
+
static void
66
+
AddExtentsForMSDOS(class ExtentManager *extMan)
67
+
{
68
+
// MSDOS needs the first block (in theory, up to 32KB)
69
+
extMan->AddByteRangeExtent(0, 32 * 1024);
70
+
}
71
+
72
+
static void
73
+
AddExtentsForNTFS(class ExtentManager *extMan)
74
+
{
75
+
// NTFS supports block size from 256B to 32768B. The first, middle and last block are needed
76
+
extMan->AddByteRangeExtent(0, 32 * 1024);
77
+
extMan->AddByteRangeExtent(extMan->totalBytes - 32 * 1024, 32 * 1024);
78
+
// to be safe, add the rage from (mid_point - 32KB) to (mid_point + 32KB)
79
+
extMan->AddByteRangeExtent(extMan->totalBytes / 2 - 32 * 1024, 64 * 1024);
80
+
}
81
+
82
+
static void
83
+
AddExtentsForUDF(class ExtentManager *extMan)
84
+
{
85
+
off_t lastBlockAddr = extMan->totalBlocks - 1;
86
+
87
+
// Volume Recognization Sequence (VRS) starts at 32KB, usually less than 7 Volume Structure Descriptors (2KB each)
88
+
extMan->AddByteRangeExtent(32 * 1024, 14 * 1024);
89
+
90
+
// AVDP is on 256, 512, last block, last block - 256
91
+
extMan->AddBlockRangeExtent(256, 1);
92
+
extMan->AddBlockRangeExtent(512, 1);
93
+
extMan->AddBlockRangeExtent(lastBlockAddr, 1);
94
+
extMan->AddBlockRangeExtent(lastBlockAddr - 256, 1);
95
+
96
+
// to be safe, assume the device has 2KB block size and do it again
97
+
if (extMan->blockSize != 2048) {
98
+
off_t blockSize = 2048;
99
+
// AVDP is on 256, 512, last block, last block - 256
100
+
extMan->AddByteRangeExtent(256 * blockSize, blockSize);
101
+
extMan->AddByteRangeExtent(512 * blockSize, blockSize);
102
+
extMan->AddByteRangeExtent(extMan->totalBytes - blockSize, blockSize);
103
+
extMan->AddByteRangeExtent(extMan->totalBytes - 256 * blockSize, blockSize);
104
+
}
105
+
}
106
+
107
+
static void
108
+
AddExtentsForUFS(class ExtentManager *extMan)
109
+
{
110
+
// UFS super block is 8KB at offset 8KB
111
+
extMan->AddByteRangeExtent(8192, 8192);
112
+
}
113
+
114
+
static void
115
+
AddExtentsForZFS(class ExtentManager *extMan)
116
+
{
117
+
// ZFS needs the first 512KB and last 512KB for all the 4 disk labels
118
+
extMan->AddByteRangeExtent(0, 512 * 1024);
119
+
extMan->AddByteRangeExtent(extMan->totalBytes - 512 * 1024, 512 * 1024);
120
+
}
121
+
122
+
static void
123
+
AddExtentsForPartitions(class ExtentManager *extMan)
124
+
{
125
+
// MBR (Master Boot Record) needs the first sector
126
+
// APM (Apple Partition Map) needs the second sector
127
+
// GPT (GUID Partition Table) needs the first 34 and last 33 sectors
128
+
extMan->AddByteRangeExtent(0, 512 * 34);
129
+
extMan->AddByteRangeExtent(extMan->totalBytes - 512 * 33, 512 * 33);
130
+
}
131
+
132
+
extern "C" int
133
+
wipefs_alloc(int fd, size_t block_size, wipefs_ctx *handle)
134
+
{
135
+
int err = 0;
136
+
uint64_t numBlocks = 0;
137
+
uint32_t nativeBlockSize = 0;
138
+
off_t totalSizeInBytes = 0;
139
+
class ExtentManager *extMan = NULL;
140
+
struct stat sbuf = { 0 };
141
+
142
+
*handle = NULL;
143
+
(void)fstat(fd, &sbuf);
144
+
switch (sbuf.st_mode & S_IFMT) {
145
+
case S_IFCHR:
146
+
case S_IFBLK:
147
+
if (ioctl(fd, DKIOCGETBLOCKSIZE, (char *)&nativeBlockSize) < 0) {
148
+
err = errno;
149
+
goto labelExit;
150
+
}
151
+
if (ioctl(fd, DKIOCGETBLOCKCOUNT, (char *)&numBlocks) < 0) {
152
+
err = errno;
153
+
goto labelExit;
154
+
}
155
+
totalSizeInBytes = numBlocks * nativeBlockSize;
156
+
break;
157
+
case S_IFREG:
158
+
nativeBlockSize = sbuf.st_blksize;
159
+
numBlocks = sbuf.st_size / sbuf.st_blksize;
160
+
totalSizeInBytes = sbuf.st_size;
161
+
break;
162
+
default:
163
+
errno = EINVAL;
164
+
goto labelExit;
165
+
}
166
+
if (block_size == 0) {
167
+
block_size = nativeBlockSize;
168
+
}
169
+
if (block_size == 0 || totalSizeInBytes == 0) {
170
+
err = EINVAL;
171
+
goto labelExit;
172
+
}
173
+
174
+
try {
175
+
*handle = new __wipefs_ctx;
176
+
if (*handle == NULL) {
177
+
bad_alloc e;
178
+
throw e;
179
+
}
180
+
181
+
(*handle)->fd = fd;
182
+
extMan = &(*handle)->extMan;
183
+
184
+
extMan->Init(block_size, nativeBlockSize, totalSizeInBytes);
185
+
AddExtentsForFutureFS(extMan);
186
+
AddExtentsForHFS(extMan);
187
+
AddExtentsForMSDOS(extMan);
188
+
AddExtentsForNTFS(extMan);
189
+
AddExtentsForUDF(extMan);
190
+
AddExtentsForUFS(extMan);
191
+
AddExtentsForZFS(extMan);
192
+
AddExtentsForPartitions(extMan);
193
+
}
194
+
catch (bad_alloc &e) {
195
+
err = ENOMEM;
196
+
}
197
+
catch (...) { // currently only ENOMEM is possible
198
+
err = ENOMEM;
199
+
}
200
+
201
+
labelExit:
202
+
if (err != 0) {
203
+
wipefs_free(handle);
204
+
}
205
+
return err;
206
+
} // wipefs_alloc
207
+
208
+
extern "C" int
209
+
wipefs_include_blocks(wipefs_ctx handle, off_t block_offset, off_t nblocks)
210
+
{
211
+
int err = 0;
212
+
try {
213
+
handle->extMan.AddBlockRangeExtent(block_offset, nblocks);
214
+
}
215
+
catch (bad_alloc &e) {
216
+
err = ENOMEM;
217
+
}
218
+
catch (...) { // currently only ENOMEM is possible
219
+
err = ENOMEM;
220
+
}
221
+
return err;
222
+
}
223
+
224
+
extern "C" int
225
+
wipefs_except_blocks(wipefs_ctx handle, off_t block_offset, off_t nblocks)
226
+
{
227
+
int err = 0;
228
+
try {
229
+
handle->extMan.RemoveBlockRangeExtent(block_offset, nblocks);
230
+
}
231
+
catch (bad_alloc &e) {
232
+
err = ENOMEM;
233
+
}
234
+
catch (...) { // currently only ENOMEM is possible
235
+
err = ENOMEM;
236
+
}
237
+
return err;
238
+
}
239
+
240
+
extern "C" int
241
+
wipefs_wipe(wipefs_ctx handle)
242
+
{
243
+
int err = 0;
244
+
uint8_t *bufZero = NULL;
245
+
ListExtIt curExt;
246
+
size_t bufSize;
247
+
dk_extent_t extent;
248
+
dk_unmap_t unmap;
249
+
250
+
memset(&extent, 0, sizeof(dk_extent_t));
251
+
extent.length = handle->extMan.totalBytes;
252
+
253
+
memset(&unmap, 0, sizeof(dk_unmap_t));
254
+
unmap.extents = &extent;
255
+
unmap.extentsCount = 1;
256
+
257
+
//
258
+
// Don't bother to check the return value since this is mostly
259
+
// informational for the lower-level drivers.
260
+
//
261
+
ioctl(handle->fd, DKIOCUNMAP, (caddr_t)&unmap);
262
+
263
+
264
+
bufSize = 128 * 1024; // issue large I/O to get better performance
265
+
if (handle->extMan.nativeBlockSize > bufSize) {
266
+
bufSize = handle->extMan.nativeBlockSize;
267
+
}
268
+
bufZero = new uint8_t[bufSize];
269
+
bzero(bufZero, bufSize);
270
+
271
+
off_t byteOffset, totalBytes;
272
+
size_t numBytes, numBytesToWrite, blockSize;
273
+
274
+
blockSize = handle->extMan.blockSize;
275
+
totalBytes = handle->extMan.totalBytes;
276
+
// write zero to all extents
277
+
for (curExt = handle->extMan.extentList.begin(); curExt != handle->extMan.extentList.end(); curExt++) {
278
+
byteOffset = curExt->blockAddr * blockSize;
279
+
numBytes = curExt->numBlocks * blockSize;
280
+
// make both offset and numBytes on native block boundary
281
+
if (byteOffset % handle->extMan.nativeBlockSize != 0 ||
282
+
numBytes % handle->extMan.nativeBlockSize != 0) {
283
+
size_t nativeBlockSize = handle->extMan.nativeBlockSize;
284
+
off_t newOffset, newEndOffset;
285
+
newOffset = byteOffset / nativeBlockSize * nativeBlockSize;
286
+
newEndOffset = roundup(byteOffset + numBytes, nativeBlockSize);
287
+
byteOffset = newOffset;
288
+
numBytes = newEndOffset - newOffset;
289
+
}
290
+
if (byteOffset + (off_t)numBytes > totalBytes) {
291
+
numBytes = totalBytes - byteOffset;
292
+
}
293
+
while (numBytes > 0) {
294
+
numBytesToWrite = min(numBytes, bufSize);
295
+
if (pwrite(handle->fd, bufZero, numBytesToWrite, byteOffset) != (ssize_t)numBytesToWrite) {
296
+
err = errno;
297
+
goto labelExit;
298
+
}
299
+
numBytes -= numBytesToWrite;
300
+
byteOffset += numBytesToWrite;
301
+
}
302
+
}
303
+
304
+
labelExit:
305
+
if (bufZero != NULL)
306
+
delete[] bufZero;
307
+
return err;
308
+
} // wipefs_wipe
309
+
310
+
extern "C" void
311
+
wipefs_free(wipefs_ctx *handle)
312
+
{
313
+
if (*handle != NULL) {
314
+
delete *handle;
315
+
*handle = NULL;
316
+
}
317
+
}
+48
src/libutil/wipefs.h
+48
src/libutil/wipefs.h
···
1
+
/*
2
+
* Copyright (c) 2008 Apple Inc. All rights reserved.
3
+
*
4
+
* @APPLE_LICENSE_HEADER_START@
5
+
*
6
+
* This file contains Original Code and/or Modifications of Original Code
7
+
* as defined in and that are subject to the Apple Public Source License
8
+
* Version 2.0 (the 'License'). You may not use this file except in
9
+
* compliance with the License. Please obtain a copy of the License at
10
+
* http://www.opensource.apple.com/apsl/ and read it before using this
11
+
* file.
12
+
*
13
+
* The Original Code and all software distributed under the License are
14
+
* distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
15
+
* EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
16
+
* INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
17
+
* FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
18
+
* Please see the License for the specific language governing rights and
19
+
* limitations under the License.
20
+
*
21
+
* @APPLE_LICENSE_HEADER_END@
22
+
*/
23
+
//
24
+
// wipefs.h
25
+
//
26
+
#ifndef WIPEFS_H
27
+
#define WIPEFS_H
28
+
29
+
#ifdef __cplusplus
30
+
extern "C" {
31
+
#endif
32
+
33
+
typedef struct __wipefs_ctx *wipefs_ctx;
34
+
35
+
__BEGIN_DECLS
36
+
extern int wipefs_alloc(int fd, size_t block_size, wipefs_ctx *handle);
37
+
extern int wipefs_include_blocks(wipefs_ctx handle, off_t block_offset, off_t nblocks);
38
+
extern int wipefs_except_blocks(wipefs_ctx handle, off_t block_offset, off_t nblocks);
39
+
extern int wipefs_wipe(wipefs_ctx handle);
40
+
extern void wipefs_free(wipefs_ctx *handle);
41
+
__END_DECLS
42
+
43
+
#ifdef __cplusplus
44
+
}
45
+
#endif
46
+
47
+
#endif // #ifndef WIPEFS_H
48
+
+11
src/libutil/xcconfigs/base.xcconfig
+11
src/libutil/xcconfigs/base.xcconfig
···
1
+
#include "<DEVELOPER_DIR>/Makefiles/CoreOS/Xcode/BSD.xcconfig"
2
+
#include "<DEVELOPER_DIR>/AppleInternal/XcodeConfig/SimulatorSupport.xcconfig"
3
+
4
+
// Set INSTALL_PATH[sdk=macosx*] when SimulatorSupport.xcconfig is unavailable
5
+
INSTALL_PATH[sdk=macosx*] = $(INSTALL_PATH_ACTUAL)
6
+
7
+
// Use $(INSTALL_PATH_PREFIX) instead of $(SDKROOT) as a prefix for other
8
+
// variables as appropriate
9
+
PUBLIC_HEADERS_FOLDER_PATH = $(INSTALL_PATH_PREFIX)/usr/include
10
+
PRIVATE_HEADERS_FOLDER_PATH = $(INSTALL_PATH_PREFIX)/usr/local/include
11
+
+33
src/libutil/xcconfigs/tzlinkd.xcconfig
+33
src/libutil/xcconfigs/tzlinkd.xcconfig
···
1
+
#include "<DEVELOPER_DIR>/AppleInternal/XcodeConfig/SimulatorSupport.xcconfig"
2
+
3
+
// Set INSTALL_PATH_ACTUAL to whatever INSTALL_PATH would normally be
4
+
INSTALL_PATH_ACTUAL = /usr/sbin
5
+
6
+
INSTALL_PATH_ACTUAL = /usr/libexec
7
+
PRODUCT_NAME = tzlinkd
8
+
9
+
CODE_SIGN_IDENTITY = -
10
+
CODE_SIGN_ENTITLEMENTS = tzlinkd/entitlements.plist
11
+
12
+
USER_HEADER_SEARCH_PATHS = $(SRCROOT)
13
+
14
+
ALWAYS_SEARCH_USER_PATHS = NO
15
+
16
+
GCC_TREAT_WARNINGS_AS_ERRORS = YES
17
+
CLANG_WARN_BOOL_CONVERSION = YES
18
+
CLANG_WARN_CONSTANT_CONVERSION = YES
19
+
CLANG_WARN_DIRECT_OBJC_ISA_USAGE = YES_ERROR
20
+
CLANG_WARN_EMPTY_BODY = YES
21
+
CLANG_WARN_ENUM_CONVERSION = YES
22
+
CLANG_WARN_INT_CONVERSION = YES
23
+
CLANG_WARN_OBJC_ROOT_CLASS = YES_ERROR
24
+
CLANG_WARN__DUPLICATE_METHOD_MATCH = YES
25
+
GCC_WARN_64_TO_32_BIT_CONVERSION = YES
26
+
GCC_WARN_ABOUT_RETURN_TYPE = YES_ERROR
27
+
GCC_WARN_UNDECLARED_SELECTOR = YES
28
+
GCC_WARN_UNINITIALIZED_AUTOS = YES
29
+
GCC_WARN_UNUSED_FUNCTION = YES
30
+
GCC_WARN_UNUSED_VARIABLE = YES
31
+
GCC_WARN_UNKNOWN_PRAGMAS = YES
32
+
GCC_WARN_UNUSED_LABEL = YES
33
+
GCC_WARN_UNUSED_PARAMETER = YES