mdk-stage1/dietlibc/libugly/daemon.c


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#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);
                close (fd);
         }
   return (0);
}