void spt_init(int argc, char *argv[]) {
char **envp = environ;
char *base, *end, *nul, *tmp;
int i, error;
if (!(base = argv[0]))
return;
nul = &base[strlen(base)];
end = nul + 1;
for (i = 0; i < argc || (i >= argc && argv[i]); i++) {
if (!argv[i] || argv[i] < end)
continue;
end = argv[i] + strlen(argv[i]) + 1;
}
for (i = 0; envp[i]; i++) {
if (envp[i] < end)
continue;
end = envp[i] + strlen(envp[i]) + 1;
}
if (!(SPT.arg0 = strdup(argv[0])))
goto syerr;
if (!(tmp = strdup(program_invocation_name)))
goto syerr;
program_invocation_name = tmp;
if (!(tmp = strdup(program_invocation_short_name)))
goto syerr;
program_invocation_short_name = tmp;
if ((error = spt_copyenv(envp)))
goto error;
if ((error = spt_copyargs(argc, argv)))
goto error;
SPT.nul = nul;
SPT.base = base;
SPT.end = end;
return;
syerr:
error = errno;
error:
SPT.error = error;
} /* spt_init() */
void
setproctitle_init(int argc, char *argv[], char *envp[])
{
char *base, *end, *nul, *tmp;
int i, envc, error;
/* Try to make sure we got called with main() arguments. */
if (argc < 0)
return;
base = argv[0];
if (base == NULL)
return;
nul = &base[strlen(base)];
end = nul + 1;
for (i = 0; i < argc || (i >= argc && argv[i]); i++) {
if (argv[i] == NULL || argv[i] < end)
continue;
end = argv[i] + strlen(argv[i]) + 1;
}
for (i = 0; envp[i]; i++) {
if (envp[i] < end)
continue;
end = envp[i] + strlen(envp[i]) + 1;
}
envc = i;
SPT.arg0 = strdup(argv[0]);
if (SPT.arg0 == NULL) {
SPT.error = errno;
return;
}
tmp = strdup(getprogname());
if (tmp == NULL) {
SPT.error = errno;
return;
}
setprogname(tmp);
error = spt_copyenv(envc, envp);
if (error) {
SPT.error = error;
return;
}
error = spt_copyargs(argc, argv);
if (error) {
SPT.error = error;
return;
}
SPT.nul = nul;
SPT.base = base;
SPT.end = end;
}