if (noclose == 0) {
tempfd = open("/dev/null", O_RDWR);
- dup2(tempfd, 0);
- dup2(tempfd, 1);
- dup2(tempfd, 2);
- closeall(3);
+ if (tempfd >= 0) {
+ dup2(tempfd, 0);
+ dup2(tempfd, 1);
+ dup2(tempfd, 2);
+ close(tempfd);
+ } else {
+ printerr(1, "mydaemon: can't open /dev/null: errno %d "
+ "(%s)\n", errno, strerror(errno));
+ exit(1);
+ }
}
return;