summaryrefslogtreecommitdiffstats
path: root/mdk-stage1/dietlibc/libcompat/daemon.c
blob: 30f97a09a745fbf39d962344b3e40632ff43a42e (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
#include <sys/types.h>
#include <sys/stat.h>
#include <fcntl.h>
#include <unistd.h>
#include <paths.h>

#include "daemon.h"

int daemon (int nochdir,int noclose)
{
  int fd;
  switch (fork()) {
  case -1: return (-1);
  case  0: break;
  default: _exit (0);
  }
  if (setsid () == -1) return (-1);
  if (!nochdir) chdir ("/");
  if (!noclose) {
    fd = open(_PATH_DEVNULL,O_RDWR,0);
    if (fd == -1) return (-1);
    dup2 (fd,STDIN_FILENO);
    dup2 (fd,STDOUT_FILENO);
    dup2 (fd,STDERR_FILENO);
    if (fd>2) close (fd);
  }
  return (0);
}