int main(int argc, char **argv, char **envp)
{
struct ELF_File *f;
void **newstack;
int i, envc;
if (argc < 2) {
fprintf(stderr, "Use: elfload <elf file> [arguments]\n");
return 1;
}
/* load them all in */
f = loadELF(argv[1]);
/* initialize .so files */
initELF(f);
/* make its stack */
for (envc = 0; envp[envc]; envc++);
newstack = (void**)
alloca((argc + envc + 2) * sizeof(void*));
newstack[0] = (void*) (argc - 1);
for (i = 1; i < argc; i++) {
newstack[i] = (void*) argv[i];
}
newstack[i] = NULL;
for (i = 0; i < envc; i++) {
newstack[i+argc+1] = (void*) envp[i];
}
newstack[i+argc+1] = NULL;
/* and call it */
WITHSTACK_JMP(newstack, f->ehdr->e_entry + f->offset);
}
int main(int argc, char **argv, char **envp)
{
struct ELF_File *f;
void **newstack;
int i, envc, progarg;
char *dir, *fil;
int maybe = 0;
progarg = -1;
for (i = 1; i < argc; i++) {
if (argv[i][0] == '-') {
if (!strcmp(argv[i], "-m")) {
maybe = 1;
} else if (!strcmp(argv[i], "--")) {
progarg = i + 1;
break;
}
} else {
progarg = i;
break;
}
}
if (progarg == -1) {
fprintf(stderr, "Use: elfload [-m] <elf file> [arguments]\n");
return 1;
}
whereAmI(argv[0], &dir, &fil);
elfload_dlinstdir = dir;
/* load them all in */
f = loadELF(argv[progarg], dir, maybe);
if (!f) {
/* try just execing it */
execv(argv[progarg], argv + progarg);
fprintf(stderr, "Failed to load %s.\n", argv[progarg]);
return 1;
}
/* relocate them */
relocateELFs();
/* initialize .so files */
initELF(f);
/* make its stack */
for (envc = 0; envp[envc]; envc++);
newstack = (void**)
alloca((argc + envc + 2) * sizeof(void*));
newstack[0] = (void*) (size_t) (argc - progarg);
for (i = progarg; i < argc; i++) {
newstack[i - progarg + 1] = (void*) argv[i];
}
newstack[i - progarg + 1] = NULL;
for (i = 0; i < envc; i++) {
newstack[i-progarg+argc+2] = (void*) envp[i];
}
newstack[i-progarg+argc+2] = NULL;
/* and call it */
WITHSTACK_JMP(newstack, f->ehdr->e_entry + f->offset);
}
