2.11BSD#431 - /usr/src/bin/ar/delete.c

   1: /*-
   2:  * Copyright (c) 1990 The Regents of the University of California.
   3:  * All rights reserved.
   4:  *
   5:  * This code is derived from software contributed to Berkeley by
   6:  * Hugh Smith at The University of Guelph.
   7:  *
   8:  * Redistribution and use in source and binary forms, with or without
   9:  * modification, are permitted provided that the following conditions
  10:  * are met:
  11:  * 1. Redistributions of source code must retain the above copyright
  12:  *    notice, this list of conditions and the following disclaimer.
  13:  * 2. Redistributions in binary form must reproduce the above copyright
  14:  *    notice, this list of conditions and the following disclaimer in the
  15:  *    documentation and/or other materials provided with the distribution.
  16:  * 3. All advertising materials mentioning features or use of this software
  17:  *    must display the following acknowledgement:
  18:  *	This product includes software developed by the University of
  19:  *	California, Berkeley and its contributors.
  20:  * 4. Neither the name of the University nor the names of its contributors
  21:  *    may be used to endorse or promote products derived from this software
  22:  *    without specific prior written permission.
  23:  *
  24:  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
  25:  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  26:  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  27:  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
  28:  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  29:  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  30:  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  31:  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  32:  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  33:  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  34:  * SUCH DAMAGE.
  35:  */
  36: 
  37: #if defined(DOSCCS) && !defined(lint)
  38: static char sccsid[] = "@(#)delete.c	5.6 (Berkeley) 3/12/91";
  39: #endif
  40: 
  41: #include <sys/param.h>
  42: #include <sys/stat.h>
  43: #include <fcntl.h>
  44: #include <sys/dir.h>
  45: #include <sys/file.h>
  46: #include <stdio.h>
  47: #include <ar.h>
  48: #include "archive.h"
  49: #include "extern.h"
  50: #include "pathnames.h"
  51: 
  52: extern CHDR chdr;           /* converted header */
  53: extern char *archive;           /* archive name */
  54: extern char *tname;                     /* temporary file "name" */
  55: 
  56: /*-
  57:  * delete --
  58:  *	Deletes named members from the archive.
  59:  */
  60: delete(argv)
  61:     register char **argv;
  62: {
  63:     CF cf;
  64:     off_t size;
  65:     int afd, tfd;
  66:     char *file;
  67: 
  68:     afd = open_archive(O_RDWR);
  69:     tfd = tmp();
  70: 
  71:     /* Read and write to an archive; pad on both. */
  72:     SETCF(afd, archive, tfd, tname, RPAD|WPAD);
  73:     while (get_arobj(afd)) {
  74:         if (*argv && (file = files(argv))) {
  75:             if (options & AR_V)
  76:                 (void)printf("d - %s\n", file);
  77:             skip_arobj(afd);
  78:             continue;
  79:         }
  80:         put_arobj(&cf, (struct stat *)NULL);
  81:     }
  82: 
  83:     size = lseek(tfd, (off_t)0, L_INCR);
  84:     (void)lseek(tfd, (off_t)0, L_SET);
  85:     (void)lseek(afd, (off_t)SARMAG, L_SET);
  86:     SETCF(tfd, tname, afd, archive, NOPAD);
  87:     copy_ar(&cf, size);
  88:     (void)close(tfd);
  89:     (void)ftruncate(afd, size + SARMAG);
  90:     close_archive(afd);
  91: 
  92:     if (*argv) {
  93:         orphans(argv);
  94:         return(1);
  95:     }
  96:     return(0);
  97: }

Defined functions

Defined variables