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authorpeter <peter@FreeBSD.org>1995-12-30 19:02:48 +0000
committerpeter <peter@FreeBSD.org>1995-12-30 19:02:48 +0000
commitab124e78b0271ddb904b761b31e5c9a0cf24e070 (patch)
tree0cf1447720c45721ed3d214a4eaaa6834bda155d /sbin/slattach
parent15748830d0fcd29294a1969a1012655e74908c1e (diff)
downloadFreeBSD-src-ab124e78b0271ddb904b761b31e5c9a0cf24e070.zip
FreeBSD-src-ab124e78b0271ddb904b761b31e5c9a0cf24e070.tar.gz
recording cvs-1.6 file death
Diffstat (limited to 'sbin/slattach')
-rw-r--r--sbin/slattach/uucplock.c143
1 files changed, 0 insertions, 143 deletions
diff --git a/sbin/slattach/uucplock.c b/sbin/slattach/uucplock.c
deleted file mode 100644
index fb0f7c0..0000000
--- a/sbin/slattach/uucplock.c
+++ /dev/null
@@ -1,143 +0,0 @@
-/*
- * Copyright (c) 1988, 1993
- * The Regents of the University of California. All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 1. Redistributions of source code must retain the above copyright
- * notice, this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright
- * notice, this list of conditions and the following disclaimer in the
- * documentation and/or other materials provided with the distribution.
- * 3. All advertising materials mentioning features or use of this software
- * must display the following acknowledgement:
- * This product includes software developed by the University of
- * California, Berkeley and its contributors.
- * 4. Neither the name of the University nor the names of its contributors
- * may be used to endorse or promote products derived from this software
- * without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
- * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
- * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
- * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
- * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
- * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
- * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
- * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
- * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
- * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
- * SUCH DAMAGE.
- */
-
-#ifndef lint
-static char sccsid[] = "@(#)uucplock.c 8.1 (Berkeley) 6/6/93";
-#endif /* not lint */
-
-#include <sys/types.h>
-#include <sys/file.h>
-#include <sys/dir.h>
-#include <errno.h>
-#include <syslog.h>
-#include <unistd.h>
-#include <signal.h>
-#include <stdio.h>
-#include <stdlib.h>
-
-#define _PATH_LOCKDIRNAME "/var/spool/lock/LCK..%s"
-
-/* Forward declarations */
-static int put_pid (int fd, pid_t pid);
-static pid_t get_pid (int fd);
-
-/*
- * uucp style locking routines
- * return: 0 - success
- * -1 - failure
- */
-
-int uu_lock (char *ttyname)
-{
- int fd;
- pid_t pid;
- char tbuf[sizeof(_PATH_LOCKDIRNAME) + MAXNAMLEN];
-
- (void)sprintf(tbuf, _PATH_LOCKDIRNAME, ttyname);
- fd = open(tbuf, O_RDWR|O_CREAT|O_EXCL, 0660);
- if (fd < 0) {
- /*
- * file is already locked
- * check to see if the process holding the lock still exists
- */
- fd = open(tbuf, O_RDWR, 0);
- if (fd < 0) {
- syslog(LOG_ERR, "lock open: %m");
- return(-1);
- }
- if ((pid = get_pid (fd)) == -1) {
- syslog(LOG_ERR, "lock read: %m");
- (void)close(fd);
- return(-1);
- }
-
- if (kill(pid, 0) == 0 || errno != ESRCH) {
- (void)close(fd); /* process is still running */
- return(-1);
- }
- /*
- * The process that locked the file isn't running, so
- * we'll lock it ourselves
- */
- if (lseek(fd, 0L, L_SET) < 0) {
- syslog(LOG_ERR, "lock lseek: %m");
- (void)close(fd);
- return(-1);
- }
- /* fall out and finish the locking process */
- }
- pid = getpid();
- if (!put_pid (fd, pid)) {
- syslog(LOG_ERR, "lock write: %m");
- (void)close(fd);
- (void)unlink(tbuf);
- return(-1);
- }
- (void)close(fd);
- return(0);
-}
-
-int uu_unlock (char *ttyname)
-{
- char tbuf[sizeof(_PATH_LOCKDIRNAME) + MAXNAMLEN];
-
- (void)sprintf(tbuf, _PATH_LOCKDIRNAME, ttyname);
- return(unlink(tbuf));
-}
-
-static int put_pid (int fd, pid_t pid)
-{
- char buf [32];
- int len;
-
- len = sprintf (buf, "%10ld\n", pid);
- return write (fd, buf, len) == len;
-}
-
-static pid_t get_pid (int fd)
-{
- int bytes_read;
- char buf [32];
- pid_t pid;
-
- bytes_read = read (fd, buf, sizeof (buf) - 1);
- if (bytes_read > 0) {
- buf [bytes_read] = '\0';
- pid = strtol (buf, (char **) NULL, 10);
- }
- else
- pid = -1;
- return pid;
-}
-
-/* end of uucplock.c */
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