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Annotation of src/usr.bin/ar/delete.c, Revision 1.4

1.4     ! millert     1: /*     $OpenBSD: delete.c,v 1.3 1997/06/17 20:47:09 kstailey Exp $     */
1.1       deraadt     2: /*     $NetBSD: delete.c,v 1.5 1995/03/26 03:27:52 glass Exp $ */
                      3:
                      4: /*-
                      5:  * Copyright (c) 1990, 1993, 1994
                      6:  *     The Regents of the University of California.  All rights reserved.
                      7:  *
                      8:  * This code is derived from software contributed to Berkeley by
                      9:  * Hugh Smith at The University of Guelph.
                     10:  *
                     11:  * Redistribution and use in source and binary forms, with or without
                     12:  * modification, are permitted provided that the following conditions
                     13:  * are met:
                     14:  * 1. Redistributions of source code must retain the above copyright
                     15:  *    notice, this list of conditions and the following disclaimer.
                     16:  * 2. Redistributions in binary form must reproduce the above copyright
                     17:  *    notice, this list of conditions and the following disclaimer in the
                     18:  *    documentation and/or other materials provided with the distribution.
1.4     ! millert    19:  * 3. Neither the name of the University nor the names of its contributors
1.1       deraadt    20:  *    may be used to endorse or promote products derived from this software
                     21:  *    without specific prior written permission.
                     22:  *
                     23:  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
                     24:  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
                     25:  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
                     26:  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
                     27:  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
                     28:  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
                     29:  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
                     30:  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
                     31:  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
                     32:  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
                     33:  * SUCH DAMAGE.
                     34:  */
                     35:
                     36: #ifndef lint
                     37: #if 0
                     38: static char sccsid[] = "@(#)delete.c   8.3 (Berkeley) 4/2/94";
                     39: #else
1.4     ! millert    40: static char rcsid[] = "$OpenBSD: delete.c,v 1.3 1997/06/17 20:47:09 kstailey Exp $";
1.1       deraadt    41: #endif
                     42: #endif /* not lint */
                     43:
                     44: #include <sys/param.h>
                     45: #include <sys/stat.h>
                     46:
                     47: #include <ar.h>
                     48: #include <dirent.h>
                     49: #include <fcntl.h>
                     50: #include <stdio.h>
                     51: #include <unistd.h>
                     52:
                     53: #include "archive.h"
                     54: #include "extern.h"
                     55: #include "pathnames.h"
                     56:
                     57: /*-
                     58:  * delete --
                     59:  *     Deletes named members from the archive.
                     60:  */
                     61: int
                     62: delete(argv)
                     63:        char **argv;
                     64: {
                     65:        CF cf;
                     66:        off_t size;
                     67:        int afd, tfd;
                     68:        char *file;
                     69:
                     70:        afd = open_archive(O_RDWR);
                     71:        tfd = tmp();
                     72:
                     73:        /* Read and write to an archive; pad on both. */
                     74:        SETCF(afd, archive, tfd, tname, RPAD|WPAD);
                     75:        while (get_arobj(afd)) {
                     76:                if (*argv && (file = files(argv))) {
                     77:                        if (options & AR_V)
                     78:                                (void)printf("d - %s\n", file);
                     79:                        skip_arobj(afd);
                     80:                        continue;
                     81:                }
1.3       kstailey   82:                put_arobj(&cf, NULL);
1.1       deraadt    83:        }
                     84:
                     85:        size = lseek(tfd, (off_t)0, SEEK_CUR);
                     86:        (void)lseek(tfd, (off_t)0, SEEK_SET);
                     87:        (void)lseek(afd, (off_t)SARMAG, SEEK_SET);
                     88:        SETCF(tfd, tname, afd, archive, NOPAD);
                     89:        copy_ar(&cf, size);
                     90:        (void)close(tfd);
                     91:        (void)ftruncate(afd, size + SARMAG);
                     92:        close_archive(afd);
                     93:
                     94:        if (*argv) {
                     95:                orphans(argv);
                     96:                return (1);
                     97:        }
                     98:        return (0);
                     99: }