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Eliminate multiply uucplock.c

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This commit is contained in:
Andrey A. Chernov 1996-03-04 10:38:42 +00:00
parent 70a41bdd99
commit 1e6ef3cd8c
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=14369
2 changed files with 4 additions and 125 deletions
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6
usr.sbin/ppp/Makefile
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@ -1,4 +1,4 @@
# $Id: Makefile,v 1.4 1996/01/11 17:48:33 phk Exp $
# $Id: Makefile,v 1.5 1996/01/30 20:04:20 phk Exp $
PROG= ppp
SRCS= async.c auth.c ccp.c chap.c chat.c command.c filter.c fsm.c hdlc.c \
@ -6,11 +6,13 @@ SRCS= async.c auth.c ccp.c chap.c chat.c command.c filter.c fsm.c hdlc.c \
pap.c pred.c route.c slcompress.c timer.c systems.c uucplock.c vars.c \
vjcomp.c arp.c
#CFLAGS+= -DHAVE_SHELL_CMD_WITH_ANY_MODE
CFLAGS += -Wall
CFLAGS += -Wall -DUSE_PERROR
LDADD += -lmd
DPADD += ${LIBMD}
MAN8= ppp.8
BINMODE=4555
BINOWN= root
.PATH: ${.CURDIR}/../../sbin/startslip
.include <bsd.prog.mk>

123
usr.sbin/ppp/uucplock.c
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@ -1,123 +0,0 @@
/*
* Copyright (c) 1988 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.
*
* $Id: uucplock.c,v 1.6 1996/01/10 21:28:03 phk Exp $
*
*/
#ifndef lint
static char const sccsid[] = "@(#)uucplock.c 5.5 (Berkeley) 6/1/90";
#endif /* not lint */
#include <sys/types.h>
#include <sys/uio.h>
#include <sys/file.h>
#include <sys/dir.h>
#include <stdio.h>
#include <unistd.h>
#include <stdlib.h>
#include <errno.h>
#include <signal.h>
#include "pathnames.h"
/*
* uucp style locking routines
* return: 0 - success
* -1 - failure
*/
int
uu_lock(ttyname)
char *ttyname;
{
extern int errno;
int fd, pid;
char tbuf[sizeof(_PATH_LOCKDIRNAME) + MAXNAMLEN];
char pid_buf[64];
off_t lseek();
(void)sprintf(tbuf, _PATH_LOCKDIRNAME, ttyname);
fd = open(tbuf, O_RDWR|O_CREAT|O_EXCL, 0664);
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) {
perror("lock open");
return(-1);
}
if (read(fd, pid_buf, sizeof(pid_buf)) <= 0) {
(void)close(fd);
perror("lock read");
return(-1);
}
pid = atoi(pid_buf);
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, (off_t) 0, L_SET) < 0) {
(void)close(fd);
perror("lock lseek");
return(-1);
}
/* fall out and finish the locking process */
}
pid = getpid();
sprintf(pid_buf, "%10u\n", pid);
if (write(fd, pid_buf, strlen(pid_buf)) != strlen(pid_buf)) {
(void)close(fd);
(void)unlink(tbuf);
perror("lock write");
return(-1);
}
(void)close(fd);
return(0);
}
int
uu_unlock(ttyname)
char *ttyname;
{
char tbuf[sizeof(_PATH_LOCKDIRNAME) + MAXNAMLEN];
(void)sprintf(tbuf, _PATH_LOCKDIRNAME, ttyname);
return(unlink(tbuf));
}