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ruby/rubystub.c
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| #include "internal.h" | |
| #include "internal/missing.h" | |
| #if defined HAVE_DLADDR | |
| #include <dlfcn.h> | |
| #endif | |
| #if defined HAVE_SYS_PARAM_H | |
| #include <sys/param.h> | |
| #endif | |
| static void* stub_options(int argc, char **argv); | |
| #define ruby_options stub_options | |
| #include <main.c> | |
| #undef ruby_options | |
| void * | |
| stub_options(int argc, char **argv) | |
| { | |
| char xflag[] = "-x"; | |
| char *xargv[4] = {NULL, xflag}; | |
| char *cmd = argv[0]; | |
| void *ret; | |
| #if defined __CYGWIN__ || defined _WIN32 | |
| /* GetCommandLineW should contain the accessible path, | |
| * use argv[0] as is */ | |
| #elif defined __linux__ | |
| { | |
| char selfexe[MAXPATHLEN]; | |
| ssize_t len = readlink("/proc/self/exe", selfexe, sizeof(selfexe)); | |
| if (len < 0) { | |
| perror("readlink(\"/proc/self/exe\")"); | |
| return NULL; | |
| } | |
| selfexe[len] = '\0'; | |
| cmd = selfexe; | |
| } | |
| #elif defined HAVE_DLADDR | |
| { | |
| Dl_info dli; | |
| if (!dladdr(stub_options, &dli)) { | |
| perror("dladdr"); | |
| return NULL; | |
| } | |
| cmd = (char *)dli.dli_fname; | |
| } | |
| #endif | |
| #ifndef HAVE_SETPROCTITLE | |
| /* argc and argv must be the original */ | |
| ruby_init_setproctitle(argc, argv); | |
| #endif | |
| /* set script with -x option */ | |
| /* xargv[0] is NULL not to re-initialize setproctitle again */ | |
| xargv[2] = cmd; | |
| ret = ruby_options(3, xargv); | |
| /* set all arguments to ARGV */ | |
| ruby_set_argv(argc - 1, argv + 1); | |
| return ret; | |
| } |