usr.bin/ar/ar.c

   1 /*-
   2  * Copyright (c) 1990, 1993, 1994
   3  *      The Regents of the University of California.  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  * $FreeBSD: src/usr.bin/ar/ar.c,v 1.8.2.1 2001/08/02 00:51:00 obrien Exp $
  37  * $DragonFly: src/usr.bin/ar/ar.c,v 1.6 2006/08/03 18:40:48 swildner Exp $
  38  *
  39  * @(#) Copyright (c) 1990, 1993, 1994 The Regents of the University of California.  All rights reserved.
  40  * @(#)ar.c     8.3 (Berkeley) 4/2/94
  41  */
  42
  43 #include <sys/param.h>
  44
  45 #include <ar.h>
  46 #include <dirent.h>
  47 #include <err.h>
  48 #include <libgen.h>
  49 #include <paths.h>
  50 #include <stdio.h>
  51 #include <stdlib.h>
  52 #include <string.h>
  53 #include <unistd.h>
  54 #include <locale.h>
  55
  56 #include "archive.h"
  57 #include "extern.h"
  58
  59 CHDR chdr;
  60 u_int options;
  61 char *archive, *posarg, *posname;
  62 char const *envtmp;
  63 static void badoptions(char const*);
  64 static void usage(void);
  65
  66 /*
  67  * main --
  68  *      main basically uses getopt to parse options and calls the appropriate
  69  *      functions.  Some hacks that let us be backward compatible with 4.3 ar
  70  *      option parsing and sanity checking.
  71  */
  72 int
  73 main(int argc, char **argv)
  74 {
  75         int c;
  76         char *p;
  77         int (*fcall)(char **) = NULL;
  78
  79         setlocale(LC_TIME, "");
  80
  81         if (argc < 3)
  82                 usage();
  83
  84         /*
  85          * Historic versions didn't require a '-' in front of the options.
  86          * Fix it, if necessary.
  87         */
  88         if (*argv[1] != '-') {
  89                 if (!(p = malloc((u_int)(strlen(argv[1]) + 2))))
  90                         err(1, NULL);
  91                 *p = '-';
  92                 strcpy(p + 1, argv[1]);
  93                 argv[1] = p;
  94         }
  95
  96         while ((c = getopt(argc, argv, "abcdilmopqrTtuvx")) != -1) {
  97                 switch(c) {
  98                 case 'a':
  99                         options |= AR_A;
 100                         break;
 101                 case 'b':
 102                 case 'i':
 103                         options |= AR_B;
 104                         break;
 105                 case 'c':
 106                         options |= AR_C;
 107                         break;
 108                 case 'd':
 109                         options |= AR_D;
 110                         fcall = delete;
 111                         break;
 112                 case 'l':               /* not documented, compatibility only */
 113                         envtmp = ".";
 114                         break;
 115                 case 'm':
 116                         options |= AR_M;
 117                         fcall = move;
 118                         break;
 119                 case 'o':
 120                         options |= AR_O;
 121                         break;
 122                 case 'p':
 123                         options |= AR_P;
 124                         fcall = print;
 125                         break;
 126                 case 'q':
 127                         options |= AR_Q;
 128                         fcall = append;
 129                         break;
 130                 case 'r':
 131                         options |= AR_R;
 132                         fcall = replace;
 133                         break;
 134                 case 'T':
 135                         options |= AR_TR;
 136                         break;
 137                 case 't':
 138                         options |= AR_T;
 139                         fcall = contents;
 140                         break;
 141                 case 'u':
 142                         options |= AR_U;
 143                         break;
 144                 case 'v':
 145                         options |= AR_V;
 146                         break;
 147                 case 'x':
 148                         options |= AR_X;
 149                         fcall = extract;
 150                         break;
 151                 default:
 152                         usage();
 153                 }
 154         }
 155
 156         argv += optind;
 157         argc -= optind;
 158
 159         /* One of -dmpqrtx required. */
 160         if (!(options & (AR_D|AR_M|AR_P|AR_Q|AR_R|AR_T|AR_X))) {
 161                 warnx("one of options -dmpqrtx is required");
 162                 usage();
 163         }
 164         /* Only one of -a and -bi allowed. */
 165         if (options & AR_A && options & AR_B) {
 166                 warnx("only one of -a and -[bi] options allowed");
 167                 usage();
 168         }
 169         /* -ab require a position argument. */
 170         if (options & (AR_A|AR_B)) {
 171                 if (!(posarg = *argv++)) {
 172                         warnx("no position operand specified");
 173                         usage();
 174                 }
 175                 posname = basename(posarg);
 176         }
 177         /* -d only valid with -Tv. */
 178         if (options & AR_D && options & ~(AR_D|AR_TR|AR_V))
 179                 badoptions("-d");
 180         /* -m only valid with -abiTv. */
 181         if (options & AR_M && options & ~(AR_A|AR_B|AR_M|AR_TR|AR_V))
 182                 badoptions("-m");
 183         /* -p only valid with -Tv. */
 184         if (options & AR_P && options & ~(AR_P|AR_TR|AR_V))
 185                 badoptions("-p");
 186         /* -q only valid with -cTv. */
 187         if (options & AR_Q && options & ~(AR_C|AR_Q|AR_TR|AR_V))
 188                 badoptions("-q");
 189         /* -r only valid with -abcuTv. */
 190         if (options & AR_R && options & ~(AR_A|AR_B|AR_C|AR_R|AR_U|AR_TR|AR_V))
 191                 badoptions("-r");
 192         /* -t only valid with -Tv. */
 193         if (options & AR_T && options & ~(AR_T|AR_TR|AR_V))
 194                 badoptions("-t");
 195         /* -x only valid with -ouTv. */
 196         if (options & AR_X && options & ~(AR_O|AR_U|AR_TR|AR_V|AR_X))
 197                 badoptions("-x");
 198
 199         if (!(archive = *argv++)) {
 200                 warnx("no archive specified");
 201                 usage();
 202         }
 203
 204         /* -dmr require a list of archive elements. */
 205         if (options & (AR_D|AR_M|AR_R) && !*argv) {
 206                 warnx("no archive members specified");
 207                 usage();
 208         }
 209
 210         exit((*fcall)(argv));
 211 }
 212
 213 static void
 214 badoptions(char const *arg)
 215 {
 216
 217         warnx("illegal option combination for %s", arg);
 218         usage();
 219 }
 220
 221 static void
 222 usage(void)
 223 {
 224
 225         fprintf(stderr, "%s\n%s\n%s\n%s\n%s\n%s\n%s\n%s\n%s\n",
 226                 "usage: ar -d [-Tv] archive file ...",
 227                 "       ar -m [-Tv] archive file ...",
 228                 "       ar -m [-abiTv] position archive file ...",
 229                 "       ar -p [-Tv] archive [file ...]",
 230                 "       ar -q [-cTv] archive file ...",
 231                 "       ar -r [-cuTv] archive file ...",
 232                 "       ar -r [-abciuTv] position archive file ...",
 233                 "       ar -t [-Tv] archive [file ...]",
 234                 "       ar -x [-ouTv] archive [file ...]");
 235         exit(1);
 236 }