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Annotation of src/usr.bin/cvs/lock.c, Revision 1.3

1.3     ! tedu        1: /*     $OpenBSD: lock.c,v 1.2 2004/08/02 17:32:48 jfb Exp $    */
1.1       jfb         2: /*
                      3:  * Copyright (c) 2004 Jean-Francois Brousseau <jfb@openbsd.org>
1.3     ! tedu        4:  * All rights reserved.
1.1       jfb         5:  *
1.3     ! tedu        6:  * Redistribution and use in source and binary forms, with or without
        !             7:  * modification, are permitted provided that the following conditions
        !             8:  * are met:
1.1       jfb         9:  *
1.3     ! tedu       10:  * 1. Redistributions of source code must retain the above copyright
        !            11:  *    notice, this list of conditions and the following disclaimer.
1.1       jfb        12:  * 2. The name of the author may not be used to endorse or promote products
1.3     ! tedu       13:  *    derived from this software without specific prior written permission.
1.1       jfb        14:  *
                     15:  * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES,
                     16:  * INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY
                     17:  * AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL
                     18:  * THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
                     19:  * EXEMPLARY, OR CONSEQUENTIAL  DAMAGES (INCLUDING, BUT NOT LIMITED TO,
                     20:  * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
                     21:  * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
                     22:  * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
                     23:  * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
1.3     ! tedu       24:  * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
1.1       jfb        25:  */
                     26:
                     27: #include <sys/types.h>
                     28: #include <sys/stat.h>
                     29:
                     30: #include <stdlib.h>
                     31: #include <fcntl.h>
                     32: #include <stdio.h>
                     33: #include <unistd.h>
                     34: #include <err.h>
                     35: #include <errno.h>
                     36: #include <string.h>
                     37:
                     38: #include "cvs.h"
                     39:
                     40:
                     41: int
                     42: cvs_lock(const char *path)
                     43: {
                     44:        int fd;
                     45:
                     46:        fd = open(path, O_WRONLY|O_CREAT|O_EXCL);
                     47:        if (fd == -1) {
                     48:                warn("failed to open lock file `%s'", path);
                     49:                return (-1);
                     50:        }
                     51:
                     52:        return (0);
                     53: }
                     54:
                     55:
                     56: int
                     57: cvs_unlock(const char *path)
                     58: {
                     59:
1.2       jfb        60:        return (0);
1.1       jfb        61: }