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Create our own passwd files during prefix setup
Previously, we were just using Linux's passwd, which caused inconsistencies, e.g., with home directory lookups.
Now, we also add the user to /etc/master.passwd so programs running as fake root within the prefix can still look our user up (since libinfo checks /etc/master.passwd when running as root instead of /etc/passwd).
+68
-3
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-2
CMakeLists.txt
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-2
CMakeLists.txt
···
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InstallSymlink(private/tmp ${CMAKE_INSTALL_PREFIX}/libexec/darling/tmp)
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InstallSymlink(/proc/self/mounts ${CMAKE_INSTALL_PREFIX}/libexec/darling/etc/mtab)
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-
InstallSymlink(/Volumes/SystemRoot/etc/passwd ${CMAKE_INSTALL_PREFIX}/libexec/darling/etc/passwd)
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-
InstallSymlink(/Volumes/SystemRoot/etc/group ${CMAKE_INSTALL_PREFIX}/libexec/darling/etc/group)
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#InstallSymlink(/Volumes/SystemRoot/etc/passwd ${CMAKE_INSTALL_PREFIX}/libexec/darling/etc/passwd)
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#InstallSymlink(/Volumes/SystemRoot/etc/group ${CMAKE_INSTALL_PREFIX}/libexec/darling/etc/group)
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InstallSymlink(/Volumes/SystemRoot/etc/localtime ${CMAKE_INSTALL_PREFIX}/libexec/darling/etc/localtime)
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InstallSymlink(/Volumes/SystemRoot/usr/share/zoneinfo ${CMAKE_INSTALL_PREFIX}/libexec/darling/usr/share/zoneinfo)
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-1
src/libinfo/CMakeLists.txt
+1
-1
src/libinfo/CMakeLists.txt
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src/startup/darling.c
+65
src/startup/darling.c
···
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{
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char path[4096];
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size_t plen;
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FILE* file;
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struct passwd* passwd_entry;
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const char* dirs[] = {
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"/Volumes",
···
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"/private/var",
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"/private/var/log",
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"/private/var/db",
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"/private/etc",
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"/var",
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"/var/run",
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"/var/tmp",
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strcat(path, dirs[i]);
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createDir(path);
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}
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// create passwd, master.passwd, and group
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passwd_entry = getpwuid(g_originalUid);
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if (!passwd_entry) {
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fprintf(stderr, "Failed to find Linux /etc/passwd entry for current user\n");
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exit(1);
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}
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path[plen] = '\0';
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strcat(path, "/private/etc/passwd");
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file = fopen(path, "w");
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if (!file) {
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fprintf(stderr, "Failed to open /private/etc/passwd within the prefix\n");
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exit(1);
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}
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fprintf(file,
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"root:*:0:0:System Administrator:/var/root:/bin/sh\n"
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"%s:*:%d:%d:Darling User:/Users/%s:/bin/bash\n",
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passwd_entry->pw_name,
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passwd_entry->pw_uid,
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passwd_entry->pw_gid,
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passwd_entry->pw_name
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);
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fclose(file);
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path[plen] = '\0';
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strcat(path, "/private/etc/master.passwd");
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file = fopen(path, "w");
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if (!file) {
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fprintf(stderr, "Failed to open /private/etc/master.passwd within the prefix\n");
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exit(1);
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}
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fprintf(file,
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"root:*:0:0::0:0:System Administrator:/var/root:/bin/sh\n"
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"%s:*:%d:%d::0:0:Darling User:/Users/%s:/bin/bash\n",
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passwd_entry->pw_name,
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passwd_entry->pw_uid,
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passwd_entry->pw_gid,
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passwd_entry->pw_name
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);
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fclose(file);
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path[plen] = '\0';
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strcat(path, "/private/etc/group");
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file = fopen(path, "w");
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if (!file) {
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fprintf(stderr, "Failed to open /private/etc/group within the prefix\n");
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exit(1);
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}
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fprintf(file,
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"wheel:*:0:root,%s\n"
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"%s:*:%d:%s\n",
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passwd_entry->pw_name,
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passwd_entry->pw_name,
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passwd_entry->pw_gid,
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passwd_entry->pw_name
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);
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fclose(file);
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seteuid(0);
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setegid(0);