2.11BSD#431 - /usr/src/bin/ar/move.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[] = "@(#)move.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:  * move --
  58:  *	Change location of named members in archive - if 'b' or 'i' option
  59:  *	selected then named members are placed before 'posname'.  If 'a'
  60:  *	option selected members go after 'posname'.  If no options, members
  61:  *	are moved to end of archive.
  62:  */
  63: move(argv)
  64:     char **argv;
  65: {
  66:     extern char *posarg, *posname;  /* positioning file names */
  67:     CF cf;
  68:     off_t size, tsize;
  69:     int afd, curfd, mods, tfd1, tfd2, tfd3;
  70:     char *file;
  71: 
  72:     afd = open_archive(O_RDWR);
  73:     mods = options & (AR_A|AR_B);
  74: 
  75:     tfd1 = tmp();           /* Files before key file. */
  76:     tfd2 = tmp();           /* Files selected by user. */
  77:     tfd3 = tmp();           /* Files after key file. */
  78: 
  79:     /*
  80: 	 * Break archive into three parts -- selected entries and entries
  81: 	 * before and after the key entry.  If positioning before the key,
  82: 	 * place the key at the beginning of the after key entries and if
  83: 	 * positioning after the key, place the key at the end of the before
  84: 	 * key entries.  Put it all back together at the end.
  85: 	 */
  86: 
  87:     /* Read and write to an archive; pad on both. */
  88:     SETCF(afd, archive, 0, tname, RPAD|WPAD);
  89:     for (curfd = tfd1; get_arobj(afd);) {
  90:         if (*argv && (file = files(argv))) {
  91:             if (options & AR_V)
  92:                 (void)printf("m - %s\n", file);
  93:             cf.wfd = tfd2;
  94:             put_arobj(&cf, (struct stat *)NULL);
  95:             continue;
  96:         }
  97:         if (mods && compare(posname)) {
  98:             mods = 0;
  99:             if (options & AR_B)
 100:                 curfd = tfd3;
 101:             cf.wfd = curfd;
 102:             put_arobj(&cf, (struct stat *)NULL);
 103:             if (options & AR_A)
 104:                 curfd = tfd3;
 105:         } else {
 106:             cf.wfd = curfd;
 107:             put_arobj(&cf, (struct stat *)NULL);
 108:         }
 109:     }
 110: 
 111:     if (mods) {
 112:         (void)fprintf(stderr, "ar: %s: archive member not found.\n",
 113:             posarg);
 114:         close_archive(afd);
 115:         return(1);
 116:     }
 117:     (void)lseek(afd, (off_t)SARMAG, L_SET);
 118: 
 119:     SETCF(tfd1, tname, afd, archive, NOPAD);
 120:     tsize = size = lseek(tfd1, (off_t)0, L_INCR);
 121:     (void)lseek(tfd1, (off_t)0, L_SET);
 122:     copy_ar(&cf, size);
 123: 
 124:     tsize += size = lseek(tfd2, (off_t)0, L_INCR);
 125:     (void)lseek(tfd2, (off_t)0, L_SET);
 126:     cf.rfd = tfd2;
 127:     copy_ar(&cf, size);
 128: 
 129:     tsize += size = lseek(tfd3, (off_t)0, L_INCR);
 130:     (void)lseek(tfd3, (off_t)0, L_SET);
 131:     cf.rfd = tfd3;
 132:     copy_ar(&cf, size);
 133: 
 134:     (void)ftruncate(afd, tsize + SARMAG);
 135:     close_archive(afd);
 136: 
 137:     if (*argv) {
 138:         orphans(argv);
 139:         return(1);
 140:     }
 141:     return(0);
 142: }

Defined functions

Defined variables