Contents of /trunk/mkinitrd-magellan/klibc/usr/klibc/daemon.c
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Sat Sep 1 22:45:15 2007 UTC (16 years, 8 months ago) by niro
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Sat Sep 1 22:45:15 2007 UTC (16 years, 8 months ago) by niro
File MIME type: text/plain
File size: 495 byte(s)
-import if magellan mkinitrd; it is a fork of redhats mkinitrd-5.0.8 with all magellan patches and features; deprecates magellan-src/mkinitrd
1 | /* |
2 | * daemon.c - "daemonize" a process |
3 | */ |
4 | |
5 | #include <stdlib.h> |
6 | #include <unistd.h> |
7 | #include <fcntl.h> |
8 | |
9 | int daemon(int nochdir, int noclose) |
10 | { |
11 | int nullfd; |
12 | pid_t f; |
13 | |
14 | if (!nochdir) { |
15 | if (chdir("/")) |
16 | return -1; |
17 | } |
18 | |
19 | if (!noclose) { |
20 | if ((nullfd = open("/dev/null", O_RDWR)) < 0 || |
21 | dup2(nullfd, 0) < 0 || |
22 | dup2(nullfd, 1) < 0 || |
23 | dup2(nullfd, 2) < 0) |
24 | return -1; |
25 | close(nullfd); |
26 | } |
27 | |
28 | f = fork(); |
29 | if (f < 0) |
30 | return -1; |
31 | else if (f > 0) |
32 | _exit(0); |
33 | |
34 | return setsid(); |
35 | } |