stub.c
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#include <ruby.h>
static void stub_sysinit(int *argc, char ***argv);
#define ruby_sysinit stub_sysinit
#include <main.c>
#undef ruby_sysinit
void
stub_sysinit(int *argc, char ***argv)
{
char exename[4096];
size_t lenexe, len0, lenall;
int i, ac;
char **av, *p;
lenexe = (size_t)GetModuleFileName(NULL, exename, sizeof exename);
ruby_sysinit(argc, argv);
ac = *argc;
av = *argv;
len0 = strlen(av[0]) + 1;
lenall = 0;
for (i = 1; i < ac; ++i) {
lenall += strlen(av[i]) + 1;
}
*argv = av = realloc(av, lenall + (lenexe + 1) * 2 + sizeof(char *) * (i + 2));
*argc = ++ac;
p = (char *)(av + i + 2);
memmove(p + (lenexe + 1) * 2, (char *)(av + ac) + len0, lenall);
memcpy(p, exename, lenexe);
p[lenexe] = '\0';
*av++ = p;
p += lenexe + 1;
memcpy(p, exename, lenexe);
p[lenexe] = '\0';
*av++ = p;
p += lenexe + 1;
while (--i) {
*av++ = p;
p += strlen(p) + 1;
}
*av = NULL;
}