xref: /freebsd/usr.bin/ar/ar.c (revision a4e5e0106ac7145f56eb39a691e302cabb4635be)
1 /*-
2  * SPDX-License-Identifier: BSD-3-Clause
3  *
4  * Copyright (c) 2007 Kai Wang
5  * Copyright (c) 2007 Tim Kientzle
6  * Copyright (c) 2007 Joseph Koshy
7  * All rights reserved.
8  *
9  * Redistribution and use in source and binary forms, with or without
10  * modification, are permitted provided that the following conditions
11  * are met:
12  * 1. Redistributions of source code must retain the above copyright
13  *    notice, this list of conditions and the following disclaimer.
14  * 2. Redistributions in binary form must reproduce the above copyright
15  *    notice, this list of conditions and the following disclaimer in the
16  *    documentation and/or other materials provided with the distribution.
17  *
18  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
19  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
20  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
21  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
22  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
23  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
24  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
25  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
26  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
27  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
28  * SUCH DAMAGE.
29  */
30 
31 /*-
32  * Copyright (c) 1990, 1993, 1994
33  *	The Regents of the University of California.  All rights reserved.
34  *
35  * This code is derived from software contributed to Berkeley by
36  * Hugh Smith at The University of Guelph.
37  *
38  * Redistribution and use in source and binary forms, with or without
39  * modification, are permitted provided that the following conditions
40  * are met:
41  * 1. Redistributions of source code must retain the above copyright
42  *    notice, this list of conditions and the following disclaimer.
43  * 2. Redistributions in binary form must reproduce the above copyright
44  *    notice, this list of conditions and the following disclaimer in the
45  *    documentation and/or other materials provided with the distribution.
46  * 3. Neither the name of the University nor the names of its contributors
47  *    may be used to endorse or promote products derived from this software
48  *    without specific prior written permission.
49  *
50  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
51  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
52  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
53  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
54  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
55  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
56  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
57  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
58  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
59  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
60  * SUCH DAMAGE.
61  */
62 
63 #include <sys/cdefs.h>
64 #include <sys/queue.h>
65 #include <sys/types.h>
66 #include <archive.h>
67 #include <err.h>
68 #include <errno.h>
69 #include <getopt.h>
70 #include <libgen.h>
71 #include <stdio.h>
72 #include <stdlib.h>
73 #include <string.h>
74 
75 #include "ar.h"
76 
77 enum options
78 {
79 	OPTION_HELP
80 };
81 
82 static struct option longopts[] =
83 {
84 	{"help", no_argument, NULL, OPTION_HELP},
85 	{"version", no_argument, NULL, 'V'},
86 	{NULL, 0, NULL, 0}
87 };
88 
89 static void	bsdar_usage(void);
90 static void	ranlib_usage(void);
91 static void	set_mode(struct bsdar *bsdar, char opt);
92 static void	only_mode(struct bsdar *bsdar, const char *opt,
93 		    const char *valid_modes);
94 static void	bsdar_version(void);
95 static void	ranlib_version(void);
96 
97 int
98 main(int argc, char **argv)
99 {
100 	struct bsdar	*bsdar, bsdar_storage;
101 	char		*p;
102 	size_t		 len;
103 	int		 exitcode, i, opt, Dflag, Uflag;
104 
105 	bsdar = &bsdar_storage;
106 	memset(bsdar, 0, sizeof(*bsdar));
107 	exitcode = EXIT_SUCCESS;
108 	Dflag = 0;
109 	Uflag = 0;
110 
111 	if ((bsdar->progname = getprogname()) == NULL)
112 		bsdar->progname = "ar";
113 
114 	/* Act like ranlib if our name ends in "ranlib"; this
115 	 * accommodates arm-freebsd7.1-ranlib, bsdranlib, etc. */
116 	len = strlen(bsdar->progname);
117 	if (len >= strlen("ranlib") &&
118 	    strcmp(bsdar->progname + len - strlen("ranlib"), "ranlib") == 0) {
119 		while ((opt = getopt_long(argc, argv, "tDUV", longopts,
120 		    NULL)) != -1) {
121 			switch(opt) {
122 			case 't':
123 				/* Ignored. */
124 				break;
125 			case 'D':
126 				Dflag = 1;
127 				Uflag = 0;
128 				break;
129 			case 'U':
130 				Uflag = 1;
131 				Dflag = 0;
132 				break;
133 			case 'V':
134 				ranlib_version();
135 				break;
136 			case OPTION_HELP:
137 				ranlib_usage();
138 			default:
139 				ranlib_usage();
140 			}
141 		}
142 		argv += optind;
143 		argc -= optind;
144 
145 		if (*argv == NULL)
146 			ranlib_usage();
147 
148 		/* Enable determinstic mode unless -U is set. */
149 		if (Uflag == 0)
150 			bsdar->options |= AR_D;
151 		bsdar->options |= AR_S;
152 		while ((bsdar->filename = *argv++) != NULL)
153 			if (ar_write_archive(bsdar, 's'))
154 				exitcode = EXIT_FAILURE;
155 
156 		exit(exitcode);
157 	} else {
158 		if (argc < 2)
159 			bsdar_usage();
160 
161 		if (*argv[1] != '-') {
162 			len = strlen(argv[1]) + 2;
163 			if ((p = malloc(len)) == NULL)
164 				bsdar_errc(bsdar, errno, "malloc failed");
165 			*p = '-';
166 			(void)strlcpy(p + 1, argv[1], len - 1);
167 			argv[1] = p;
168 		}
169 	}
170 
171 	while ((opt = getopt_long(argc, argv, "abCcdDfijlMmopqrSsTtUuVvxz",
172 	    longopts, NULL)) != -1) {
173 		switch(opt) {
174 		case 'a':
175 			bsdar->options |= AR_A;
176 			break;
177 		case 'b':
178 		case 'i':
179 			bsdar->options |= AR_B;
180 			break;
181 		case 'C':
182 			bsdar->options |= AR_CC;
183 			break;
184 		case 'c':
185 			bsdar->options |= AR_C;
186 			break;
187 		case 'd':
188 			set_mode(bsdar, opt);
189 			break;
190 		case 'D':
191 			Dflag = 1;
192 			Uflag = 0;
193 			break;
194 		case 'f':
195 			bsdar->options |= AR_TR;
196 			break;
197 		case 'j':
198 			/* ignored */
199 			break;
200 		case 'l':
201 			/* ignored, for GNU ar comptibility */
202 			break;
203 		case 'M':
204 			set_mode(bsdar, opt);
205 			break;
206 		case 'm':
207 			set_mode(bsdar, opt);
208 			break;
209 		case 'o':
210 			bsdar->options |= AR_O;
211 			break;
212 		case 'p':
213 			set_mode(bsdar, opt);
214 			break;
215 		case 'q':
216 			set_mode(bsdar, opt);
217 			break;
218 		case 'r':
219 			set_mode(bsdar, opt);
220 			break;
221 		case 'S':
222 			bsdar->options |= AR_SS;
223 			break;
224 		case 's':
225 			bsdar->options |= AR_S;
226 			break;
227 		case 'T':
228 			/* ignored */
229 			break;
230 		case 't':
231 			set_mode(bsdar, opt);
232 			break;
233 		case 'U':
234 			Uflag = 1;
235 			Dflag = 0;
236 			break;
237 		case 'u':
238 			bsdar->options |= AR_U;
239 			break;
240 		case 'V':
241 			bsdar_version();
242 			break;
243 		case 'v':
244 			bsdar->options |= AR_V;
245 			break;
246 		case 'x':
247 			set_mode(bsdar, opt);
248 			break;
249 		case 'z':
250 			/* ignored */
251 			break;
252 		case OPTION_HELP:
253 			bsdar_usage();
254 		default:
255 			bsdar_usage();
256 		}
257 	}
258 
259 	argv += optind;
260 	argc -= optind;
261 
262 	if (*argv == NULL && bsdar->mode != 'M')
263 		bsdar_usage();
264 
265 	if (bsdar->options & AR_A && bsdar->options & AR_B)
266 		bsdar_errc(bsdar, 0,
267 		    "only one of -a and -[bi] options allowed");
268 
269 	if (bsdar->options & AR_J && bsdar->options & AR_Z)
270 		bsdar_errc(bsdar, 0, "only one of -j and -z options allowed");
271 
272 	if (bsdar->options & AR_S && bsdar->options & AR_SS)
273 		bsdar_errc(bsdar, 0, "only one of -s and -S options allowed");
274 
275 	if (bsdar->options & (AR_A | AR_B)) {
276 		if (*argv == NULL)
277 			bsdar_errc(bsdar, 0, "no position operand specified");
278 		if ((bsdar->posarg = basename(*argv)) == NULL)
279 			bsdar_errc(bsdar, errno, "basename failed");
280 		argc--;
281 		argv++;
282 	}
283 
284 	/* Set determinstic mode for -D, and by default without -U. */
285 	if (Dflag || (Uflag == 0 && (bsdar->mode == 'q' || bsdar->mode == 'r' ||
286 	    (bsdar->mode == '\0' && bsdar->options & AR_S))))
287 		bsdar->options |= AR_D;
288 
289 	if (bsdar->options & AR_A)
290 		only_mode(bsdar, "-a", "mqr");
291 	if (bsdar->options & AR_B)
292 		only_mode(bsdar, "-b", "mqr");
293 	if (bsdar->options & AR_C)
294 		only_mode(bsdar, "-c", "qr");
295 	if (bsdar->options & AR_CC)
296 		only_mode(bsdar, "-C", "x");
297 	if (Dflag)
298 		only_mode(bsdar, "-D", "qr");
299 	if (Uflag)
300 		only_mode(bsdar, "-U", "qr");
301 	if (bsdar->options & AR_O)
302 		only_mode(bsdar, "-o", "x");
303 	if (bsdar->options & AR_SS)
304 		only_mode(bsdar, "-S", "mqr");
305 	if (bsdar->options & AR_U)
306 		only_mode(bsdar, "-u", "qrx");
307 
308 	if (bsdar->mode == 'M') {
309 		ar_mode_script(bsdar);
310 		exit(EXIT_SUCCESS);
311 	}
312 
313 	if ((bsdar->filename = *argv) == NULL)
314 		bsdar_usage();
315 
316 	bsdar->argc = --argc;
317 	bsdar->argv = ++argv;
318 
319 	if ((!bsdar->mode || strchr("ptx", bsdar->mode)) &&
320 	    bsdar->options & AR_S) {
321 		exitcode = ar_write_archive(bsdar, 's');
322 		if (!bsdar->mode)
323 			exit(exitcode);
324 	}
325 
326 	switch(bsdar->mode) {
327 	case 'd': case 'm': case 'q': case 'r':
328 		exitcode = ar_write_archive(bsdar, bsdar->mode);
329 		break;
330 	case 'p': case 't': case 'x':
331 		exitcode = ar_read_archive(bsdar, bsdar->mode, stdout);
332 		break;
333 	default:
334 		bsdar_usage();
335 		/* NOTREACHED */
336 	}
337 
338 	for (i = 0; i < bsdar->argc; i++) {
339 		if (bsdar->argv[i] != NULL) {
340 			bsdar_warnc(bsdar, 0, "%s: not found in archive",
341 			    bsdar->argv[i]);
342 			exitcode = EXIT_FAILURE;
343 		}
344 	}
345 
346 	exit(exitcode);
347 }
348 
349 static void
350 set_mode(struct bsdar *bsdar, char opt)
351 {
352 
353 	if (bsdar->mode != '\0' && bsdar->mode != opt)
354 		bsdar_errc(bsdar, 0, "Can't specify both -%c and -%c", opt,
355 		    bsdar->mode);
356 	bsdar->mode = opt;
357 }
358 
359 static void
360 only_mode(struct bsdar *bsdar, const char *opt, const char *valid_modes)
361 {
362 
363 	if (strchr(valid_modes, bsdar->mode) == NULL)
364 		bsdar_errc(bsdar, 0, "Option %s is not permitted in mode -%c",
365 		    opt, bsdar->mode);
366 }
367 
368 static void
369 bsdar_usage(void)
370 {
371 
372 	(void)fprintf(stderr, "usage:  ar -d [-Tjsvz] archive file ...\n");
373 	(void)fprintf(stderr, "\tar -m [-Tjsvz] archive file ...\n");
374 	(void)fprintf(stderr, "\tar -m [-Tabijsvz] position archive file ...\n");
375 	(void)fprintf(stderr, "\tar -p [-Tv] archive [file ...]\n");
376 	(void)fprintf(stderr, "\tar -q [-TcDjsUvz] archive file ...\n");
377 	(void)fprintf(stderr, "\tar -r [-TcDjsUuvz] archive file ...\n");
378 	(void)fprintf(stderr, "\tar -r [-TabcDijsUuvz] position archive file ...\n");
379 	(void)fprintf(stderr, "\tar -s [-jz] archive\n");
380 	(void)fprintf(stderr, "\tar -t [-Tv] archive [file ...]\n");
381 	(void)fprintf(stderr, "\tar -x [-CTouv] archive [file ...]\n");
382 	(void)fprintf(stderr, "\tar -V\n");
383 	exit(EXIT_FAILURE);
384 }
385 
386 static void
387 ranlib_usage(void)
388 {
389 
390 	(void)fprintf(stderr, "usage:	ranlib [-DtU] archive ...\n");
391 	(void)fprintf(stderr, "\tranlib -V\n");
392 	exit(EXIT_FAILURE);
393 }
394 
395 static void
396 bsdar_version(void)
397 {
398 	(void)printf("BSD ar %s - %s\n", BSDAR_VERSION, archive_version_string());
399 	exit(EXIT_SUCCESS);
400 }
401 
402 static void
403 ranlib_version(void)
404 {
405 	(void)printf("ranlib %s - %s\n", BSDAR_VERSION, archive_version_string());
406 	exit(EXIT_SUCCESS);
407 }
408