remove in place of external link

networking/udhcp/pidfile.c

@@ -1,75 +0,0 @@
-/* pidfile.c
- *
- * Functions to assist in the writing and removing of pidfiles.
- *
- * Russ Dill <Russ.Dill@asu.edu> September 2001
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
- */
-
-#include <sys/types.h>
-#include <sys/stat.h>
-#include <fcntl.h>
-#include <unistd.h>
-#include <stdio.h>
-#include <stdlib.h>
-
-#include "pidfile.h"
-#include "common.h"
-
-static char *saved_pidfile;
-
-static void pidfile_delete(void)
-{
-	if (saved_pidfile) unlink(saved_pidfile);
-}
-
-
-int pidfile_acquire(const char *pidfile)
-{
-	int pid_fd;
-	if (!pidfile) return -1;
-
-	pid_fd = open(pidfile, O_CREAT | O_WRONLY, 0644);
-	if (pid_fd < 0) {
-		LOG(LOG_ERR, "Unable to open pidfile %s: %m\n", pidfile);
-	} else {
-		lockf(pid_fd, F_LOCK, 0);
-		if (!saved_pidfile)
-			atexit(pidfile_delete);
-		saved_pidfile = (char *) pidfile;
-	}
-
-	return pid_fd;
-}
-
-
-void pidfile_write_release(int pid_fd)
-{
-	FILE *out;
-
-	if (pid_fd < 0) return;
-
-	if ((out = fdopen(pid_fd, "w")) != NULL) {
-		fprintf(out, "%d\n", getpid());
-		fclose(out);
-	}
-	lockf(pid_fd, F_UNLCK, 0);
-	close(pid_fd);
-}
-
-
-
-