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/* compatibility hack for old systems lacking daemon() */
#include "dcc_config.h"
#include "dcc_paths.h"
#include <stdio.h>
#include <unistd.h>
#include <stdlib.h>
#include <fcntl.h>
int
dcc_daemon(int nochdir, int noclose)
{
int retv;
if (!nochdir) {
if (chdir("/") == -1)
perror("chdir /");
}
retv = fork();
if (retv == -1)
return -1; /* fork() failed */
if (retv != 0)
_exit(0); /* parent of new child */
/* fork again after setsid() so that the PID is not the session
* group leader so that opening a tty device won't make a
* controlling terminal. */
setsid();
retv = fork();
if (retv == -1) {
perror("fork"); /* second fork() failed */
exit(1); /* cannot tell caller */
}
if (retv != 0)
_exit(0); /* parent of final child */
if (!noclose) {
close(0);
close(1);
close(2);
open(_PATH_DEVNULL, O_RDWR, 0666);
dup2(0, 1);
dup2(0, 2);
}
return 0;
}
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