default: _exit(0);
}
- if (!nochdir) chdir("/");
- if (!noclose && (fd = open("/dev/null", O_RDWR)) >= 0) {
- dup2(fd, 0);
- dup2(fd, 1);
- dup2(fd, 2);
+ if (!nochdir && chdir("/"))
+ return -1;
+ if (!noclose) {
+ int failed = 0;
+ if ((fd = open("/dev/null", O_RDWR)) < 0) return -1;
+ if (dup2(fd, 0) < 0 || dup2(fd, 1) < 0 || dup2(fd, 2) < 0)
+ failed++;
if (fd > 2) close(fd);
+ if (failed) return -1;
}
return 0;