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https://github.com/ruby/ruby.git
synced 2022-11-09 12:17:21 -05:00
60 lines
1.4 KiB
C
60 lines
1.4 KiB
C
#include "internal.h"
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#if defined HAVE_DLADDR
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#include <dlfcn.h>
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#endif
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#if defined HAVE_SYS_PARAM_H
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#include <sys/param.h>
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#endif
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static void* stub_options(int argc, char **argv);
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#define ruby_options stub_options
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#include <main.c>
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#undef ruby_options
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void *
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stub_options(int argc, char **argv)
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{
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char xflag[] = "-x";
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char *xargv[4] = {NULL, xflag};
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char *cmd = argv[0];
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void *ret;
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#if defined __CYGWIN__ || defined _WIN32
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/* GetCommandLineW should contain the accessible path,
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* use argv[0] as is */
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#elif defined __linux__
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{
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char selfexe[MAXPATHLEN];
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ssize_t len = readlink("/proc/self/exe", selfexe, sizeof(selfexe));
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if (len < 0) {
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perror("readlink(\"/proc/self/exe\")");
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return NULL;
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}
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selfexe[len] = '\0';
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cmd = selfexe;
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}
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#elif defined HAVE_DLADDR
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{
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Dl_info dli;
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if (!dladdr(stub_options, &dli)) {
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perror("dladdr");
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return NULL;
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}
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cmd = (char *)dli.dli_fname;
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}
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#endif
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#ifndef HAVE_SETPROCTITLE
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/* argc and argv must be the original */
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ruby_init_setproctitle(argc, argv);
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#endif
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/* set script with -x option */
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/* xargv[0] is NULL not to re-initialize setproctitle again */
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xargv[2] = cmd;
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ret = ruby_options(3, xargv);
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/* set all arguments to ARGV */
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ruby_set_argv(argc - 1, argv + 1);
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return ret;
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}
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