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Use replacement library functions to daemonize, rather than #ifdef hell

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This commit is contained in:
H. Peter Anvin 2007-01-15 01:11:26 -08:00
parent 6124dcbe2d
commit 059de7ce20
4 changed files with 70 additions and 33 deletions
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32
tftpd/tftpd.c
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@ -1,5 +1,3 @@
/* tftp-hpa: $Id$ */
/* $OpenBSD: tftpd.c,v 1.13 1999/06/23 17:01:36 deraadt Exp $ */
/*
@ -499,33 +497,9 @@ main(int argc, char **argv)
}
/* Daemonize this process */
{
pid_t f = fork();
int nfd;
if ( f > 0 )
exit(0);
if ( f < 0 ) {
syslog(LOG_ERR, "cannot fork: %m");
exit(EX_OSERR);
}
nfd = open("/dev/null", O_RDWR);
if ( nfd >= 3 ) {
#ifdef HAVE_DUP2
dup2(nfd, 0);
dup2(nfd, 1);
dup2(nfd, 2);
#else
close(0); dup(nfd);
close(1); dup(nfd);
close(2); dup(nfd);
#endif
close(nfd);
} else if ( nfd < 0 ) {
close(0); close(1); close(2);
}
#ifdef HAVE_SETSID
setsid();
#endif
if (daemon(0, 0) < 0) {
syslog(LOG_ERR, "cannot daemonize: %m");
exit(EX_OSERR);
}
} else {
/* 0 is our socket descriptor */