this repo has no description
Initial work on libxcselect
+396
+1
src/CMakeLists.txt
+1
src/CMakeLists.txt
+31
src/xcselect/CMakeLists.txt
+31
src/xcselect/CMakeLists.txt
···
1
+
project(xcselect)
2
+
3
+
set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -nostdinc")
4
+
5
+
set(DYLIB_INSTALL_NAME "/usr/lib/libxcselect.dylib")
6
+
set(DYLIB_COMPAT_VERSION "1.0.0")
7
+
set(DYLIB_CURRENT_VERSION "1.0.0")
8
+
9
+
add_darling_library(xcselect libxcselect.c)
10
+
target_link_libraries(xcselect system)
11
+
12
+
add_darling_executable(xcrun xcrun.c)
13
+
target_link_libraries(xcrun system xcselect)
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+
15
+
function(add_shim name)
16
+
add_darling_executable("${name}_shim" xcrun-shim.c)
17
+
18
+
set_target_properties("${name}_shim"
19
+
PROPERTIES
20
+
OUTPUT_NAME "${name}"
21
+
COMPILE_FLAGS "-DTOOL_NAME=\\\"${name}\\\""
22
+
)
23
+
target_link_libraries("${name}_shim" system xcselect)
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+
install(TARGETS "${name}_shim" DESTINATION libexec/darling/usr/bin)
25
+
endfunction(add_shim)
26
+
27
+
add_shim(nm)
28
+
29
+
install(TARGETS xcselect DESTINATION libexec/darling/usr/lib)
30
+
install(TARGETS xcrun DESTINATION libexec/darling/usr/bin)
31
+
+4
src/xcselect/TODO
+4
src/xcselect/TODO
+268
src/xcselect/libxcselect.c
+268
src/xcselect/libxcselect.c
···
1
+
/*
2
+
This file is part of Darling.
3
+
4
+
Copyright (C) 2017 Lubos Dolezel
5
+
6
+
Darling is free software: you can redistribute it and/or modify
7
+
it under the terms of the GNU General Public License as published by
8
+
the Free Software Foundation, either version 3 of the License, or
9
+
(at your option) any later version.
10
+
11
+
Darling is distributed in the hope that it will be useful,
12
+
but WITHOUT ANY WARRANTY; without even the implied warranty of
13
+
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14
+
GNU General Public License for more details.
15
+
16
+
You should have received a copy of the GNU General Public License
17
+
along with Darling. If not, see <http://www.gnu.org/licenses/>.
18
+
*/
19
+
#include <stdlib.h>
20
+
#include <fcntl.h>
21
+
#include <unistd.h>
22
+
#include <stdbool.h>
23
+
#include <sys/stat.h>
24
+
#include <stdlib.h>
25
+
#include <errno.h>
26
+
#include <string.h>
27
+
#include <dlfcn.h>
28
+
#include <stdio.h>
29
+
#include "libxcselect.h"
30
+
31
+
static char path_buffer[1024];
32
+
33
+
static const char* get_developer_dir_from_file(const char* file)
34
+
{
35
+
int fd = open(file, O_RDONLY);
36
+
if (fd == -1)
37
+
return NULL;
38
+
39
+
int len = read(fd, path_buffer, sizeof(path_buffer)-1);
40
+
if (len <= 0)
41
+
{
42
+
close(fd);
43
+
return NULL;
44
+
}
45
+
46
+
path_buffer[len] = 0;
47
+
close(fd);
48
+
49
+
return path_buffer;
50
+
}
51
+
52
+
const char* get_developer_dir_from_symlink(const char* link)
53
+
{
54
+
ssize_t len;
55
+
56
+
len = readlink(link, path_buffer, sizeof(path_buffer)-1);
57
+
if (len <= 0)
58
+
return NULL;
59
+
60
+
path_buffer[len] = 0;
61
+
return path_buffer;
62
+
}
63
+
64
+
static bool dir_exists(const char* dir)
65
+
{
66
+
struct stat st;
67
+
68
+
if (stat(dir, &st) != 0)
69
+
return false;
70
+
71
+
return S_ISDIR(st.st_mode);
72
+
}
73
+
74
+
static bool valid_dev_path(const char* path)
75
+
{
76
+
char buffer[1024];
77
+
size_t length;
78
+
79
+
strcpy(buffer, path);
80
+
strcat(buffer, "/");
81
+
82
+
length = strlen(buffer);
83
+
strcat(buffer, "usr/lib/libxcrun.dylib");
84
+
if (access(buffer, F_OK) == 0)
85
+
return true;
86
+
87
+
buffer[length] = 0;
88
+
strcat(buffer, "usr/bin/xcrun");
89
+
if (access(buffer, F_OK) == 0)
90
+
return true;
91
+
92
+
return false;
93
+
}
94
+
95
+
const char* xcselect_find_developer_contents_from_path(const char* p, bool* is_cmd_line)
96
+
{
97
+
size_t length;
98
+
99
+
if (*p != '/')
100
+
{
101
+
getcwd(path_buffer, sizeof(path_buffer));
102
+
strcat(path_buffer, "/");
103
+
strcat(path_buffer, p);
104
+
}
105
+
else
106
+
strcpy(path_buffer, p);
107
+
108
+
length = strlen(path_buffer);
109
+
if (valid_dev_path(path_buffer))
110
+
return path_buffer;
111
+
112
+
path_buffer[length++] = '/';
113
+
path_buffer[length] = 0;
114
+
115
+
strcat(path_buffer, "Library/Developer/CommandLineTools");
116
+
if (valid_dev_path(path_buffer))
117
+
{
118
+
*is_cmd_line = true;
119
+
return path_buffer;
120
+
}
121
+
122
+
path_buffer[length] = 0;
123
+
strcat(path_buffer, "CommandLineTools");
124
+
if (valid_dev_path(path_buffer))
125
+
{
126
+
*is_cmd_line = true;
127
+
return path_buffer;
128
+
}
129
+
130
+
path_buffer[length] = 0;
131
+
strcat(path_buffer, "Contents/Developer");
132
+
if (valid_dev_path(path_buffer))
133
+
return path_buffer;
134
+
135
+
return NULL;
136
+
}
137
+
138
+
const char* xcselect_get_developer_dir_path(bool* is_cmd_line)
139
+
{
140
+
const char* p;
141
+
char* slash;
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+
143
+
*is_cmd_line = false;
144
+
145
+
p = getenv("DEVELOPER_DIR");
146
+
if (p)
147
+
{
148
+
p = xcselect_find_developer_contents_from_path(p, is_cmd_line);
149
+
if (p)
150
+
goto have_path;
151
+
}
152
+
153
+
p = get_developer_dir_from_symlink("/var/db/xcode_select_link");
154
+
if (p)
155
+
goto have_path;
156
+
157
+
p = get_developer_dir_from_symlink("/usr/share/xcode-select/xcode_dir_link");
158
+
if (p)
159
+
goto have_path;
160
+
161
+
p = get_developer_dir_from_file("/usr/share/xcode-select/xcode_dir_path");
162
+
if (p)
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+
goto have_path;
164
+
165
+
if (dir_exists("/Applications/Xcode.app"))
166
+
{
167
+
p = "/Applications/Xcode.app/Contents/Developer";
168
+
goto have_path;
169
+
}
170
+
else if (dir_exists("/Library/Developer/CommandLineTools"))
171
+
{
172
+
p = "/Library/Developer/CommandLineTools";
173
+
goto have_path;
174
+
}
175
+
176
+
return NULL;
177
+
178
+
have_path:
179
+
slash = strrchr(p, '/');
180
+
if (slash != NULL)
181
+
{
182
+
if (strcmp(slash+1, "CommandLineTools") == 0)
183
+
*is_cmd_line = true;
184
+
}
185
+
186
+
return p;
187
+
}
188
+
189
+
190
+
int xcselect_invoke_xcrun(const char* tool, int argc, char* argv[], int flags)
191
+
{
192
+
const char* dev_dir;
193
+
bool is_cmdline;
194
+
195
+
dev_dir = xcselect_get_developer_dir_path(&is_cmdline);
196
+
197
+
if (dev_dir != NULL)
198
+
{
199
+
char* buf = (char*) malloc(2048);
200
+
size_t length;
201
+
void* lib;
202
+
203
+
if (is_cmdline && (flags & XCSELECT_FLAG_REQUIRE_XCODE))
204
+
{
205
+
fprintf(stderr, "xcrun: tool '%s' requires Xcode installation, command line tools are insufficient.\n", tool);
206
+
exit(1);
207
+
}
208
+
209
+
strcpy(buf, dev_dir);
210
+
strcat(buf, "/");
211
+
length = strlen(buf);
212
+
213
+
strcat(buf, "usr/lib/libxcrun.dylib");
214
+
lib = dlopen(buf, RTLD_LAZY);
215
+
216
+
if (lib != NULL)
217
+
{
218
+
void(*fn)(const char*, int, char**, const char*);
219
+
220
+
*((void**)&fn) = dlsym(lib, "xcrun_main");
221
+
if (!fn)
222
+
{
223
+
fprintf(stderr, "xcrun: broken libxcrun.dylib at '%s'\n", buf);
224
+
}
225
+
else
226
+
{
227
+
fn(getprogname(), argc, argv, dev_dir);
228
+
}
229
+
}
230
+
else
231
+
{
232
+
char** argv2;
233
+
int j = 0;
234
+
235
+
buf[length] = 0;
236
+
strcat(buf, "usr/bin/xcrun");
237
+
238
+
argv2 = (char**) __builtin_alloca((argc+2) * sizeof(char*));
239
+
argv2[j++] = buf;
240
+
241
+
if (tool != NULL)
242
+
argv2[j++] = (char*) tool;
243
+
244
+
for (int i = 0; i < argc; i++, j++)
245
+
argv2[j] = argv[i];
246
+
247
+
execv(buf, argv2);
248
+
fprintf(stderr, "xcrun: developer path '%s' is invalid, failed to execute '%s': %s\n",
249
+
dev_dir, buf, strerror(errno));
250
+
}
251
+
}
252
+
else if (dir_exists("/usr/libexec/DeveloperTools") && tool != NULL)
253
+
{
254
+
char* buf = __builtin_alloca(strlen(tool) + 30);
255
+
strcpy(buf, "/usr/libexec/DeveloperTools/");
256
+
strcat(buf, tool);
257
+
258
+
execv(buf, argv);
259
+
fprintf(stderr, "xcrun: failed to exec '%s': %s\n", buf, strerror(errno));
260
+
}
261
+
else
262
+
{
263
+
fprintf(stderr, "xcrun: cannot find developer tools, set DEVELOPER_DIR if you are using a non-standard location.\n");
264
+
}
265
+
266
+
exit(1);
267
+
}
268
+
+27
src/xcselect/libxcselect.h
+27
src/xcselect/libxcselect.h
···
1
+
/*
2
+
This file is part of Darling.
3
+
4
+
Copyright (C) 2017 Lubos Dolezel
5
+
6
+
Darling is free software: you can redistribute it and/or modify
7
+
it under the terms of the GNU General Public License as published by
8
+
the Free Software Foundation, either version 3 of the License, or
9
+
(at your option) any later version.
10
+
11
+
Darling is distributed in the hope that it will be useful,
12
+
but WITHOUT ANY WARRANTY; without even the implied warranty of
13
+
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14
+
GNU General Public License for more details.
15
+
16
+
You should have received a copy of the GNU General Public License
17
+
along with Darling. If not, see <http://www.gnu.org/licenses/>.
18
+
*/
19
+
#ifndef _LIBXCSELECT_H_
20
+
#define _LIBXCSELECT_H_
21
+
22
+
#define XCSELECT_FLAG_REQUIRE_XCODE 1
23
+
24
+
int xcselect_invoke_xcrun(const char* tool, int argc, char* argv[], int flags);
25
+
26
+
#endif
27
+
+27
src/xcselect/xcrun-shim.c
+27
src/xcselect/xcrun-shim.c
···
1
+
/*
2
+
This file is part of Darling.
3
+
4
+
Copyright (C) 2017 Lubos Dolezel
5
+
6
+
Darling is free software: you can redistribute it and/or modify
7
+
it under the terms of the GNU General Public License as published by
8
+
the Free Software Foundation, either version 3 of the License, or
9
+
(at your option) any later version.
10
+
11
+
Darling is distributed in the hope that it will be useful,
12
+
but WITHOUT ANY WARRANTY; without even the implied warranty of
13
+
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14
+
GNU General Public License for more details.
15
+
16
+
You should have received a copy of the GNU General Public License
17
+
along with Darling. If not, see <http://www.gnu.org/licenses/>.
18
+
*/
19
+
#include "libxcselect.h"
20
+
#include <stdlib.h>
21
+
#include <string.h>
22
+
23
+
int main(int argc, const char** argv)
24
+
{
25
+
return xcselect_invoke_xcrun(TOOL_NAME, argc - 1, &argv[1], 0);
26
+
}
27
+
+38
src/xcselect/xcrun.c
+38
src/xcselect/xcrun.c
···
1
+
/*
2
+
This file is part of Darling.
3
+
4
+
Copyright (C) 2017 Lubos Dolezel
5
+
6
+
Darling is free software: you can redistribute it and/or modify
7
+
it under the terms of the GNU General Public License as published by
8
+
the Free Software Foundation, either version 3 of the License, or
9
+
(at your option) any later version.
10
+
11
+
Darling is distributed in the hope that it will be useful,
12
+
but WITHOUT ANY WARRANTY; without even the implied warranty of
13
+
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14
+
GNU General Public License for more details.
15
+
16
+
You should have received a copy of the GNU General Public License
17
+
along with Darling. If not, see <http://www.gnu.org/licenses/>.
18
+
*/
19
+
#include "libxcselect.h"
20
+
#include <stdlib.h>
21
+
#include <string.h>
22
+
23
+
int main(int argc, const char** argv)
24
+
{
25
+
const char* tool;
26
+
const char* pname = getprogname();
27
+
28
+
if (*pname == '/')
29
+
tool = pname + 1;
30
+
else
31
+
tool = pname;
32
+
33
+
if (strcasecmp(tool, "xcrun") == 0)
34
+
tool = NULL;
35
+
36
+
return xcselect_invoke_xcrun(tool, argc - 1, &argv[1], 0);
37
+
}
38
+