Annotation of src/usr.bin/ar/ar.c, Revision 1.1.1.1
1.1 deraadt 1: /* $NetBSD: ar.c,v 1.5 1995/03/26 03:27:44 glass Exp $ */
2:
3: /*-
4: * Copyright (c) 1990, 1993, 1994
5: * The Regents of the University of California. All rights reserved.
6: *
7: * This code is derived from software contributed to Berkeley by
8: * Hugh Smith at The University of Guelph.
9: *
10: * Redistribution and use in source and binary forms, with or without
11: * modification, are permitted provided that the following conditions
12: * are met:
13: * 1. Redistributions of source code must retain the above copyright
14: * notice, this list of conditions and the following disclaimer.
15: * 2. Redistributions in binary form must reproduce the above copyright
16: * notice, this list of conditions and the following disclaimer in the
17: * documentation and/or other materials provided with the distribution.
18: * 3. All advertising materials mentioning features or use of this software
19: * must display the following acknowledgement:
20: * This product includes software developed by the University of
21: * California, Berkeley and its contributors.
22: * 4. Neither the name of the University nor the names of its contributors
23: * may be used to endorse or promote products derived from this software
24: * without specific prior written permission.
25: *
26: * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
27: * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
28: * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
29: * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
30: * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
31: * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
32: * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
33: * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
34: * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
35: * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
36: * SUCH DAMAGE.
37: */
38:
39: #ifndef lint
40: static char copyright[] =
41: "@(#) Copyright (c) 1990, 1993, 1994\n\
42: The Regents of the University of California. All rights reserved.\n";
43: #endif /* not lint */
44:
45: #ifndef lint
46: #if 0
47: static char sccsid[] = "@(#)ar.c 8.3 (Berkeley) 4/2/94";
48: #else
49: static char rcsid[] = "$NetBSD: ar.c,v 1.5 1995/03/26 03:27:44 glass Exp $";
50: #endif
51: #endif /* not lint */
52:
53: #include <sys/param.h>
54:
55: #include <ar.h>
56: #include <dirent.h>
57: #include <err.h>
58: #include <paths.h>
59: #include <stdio.h>
60: #include <stdlib.h>
61: #include <string.h>
62: #include <unistd.h>
63:
64: #include "archive.h"
65: #include "extern.h"
66:
67: CHDR chdr;
68: u_int options;
69: char *archive, *envtmp, *posarg, *posname;
70: static void badoptions __P((char *));
71: static void usage __P((void));
72:
73: /*
74: * main --
75: * main basically uses getopt to parse options and calls the appropriate
76: * functions. Some hacks that let us be backward compatible with 4.3 ar
77: * option parsing and sanity checking.
78: */
79: int
80: main(argc, argv)
81: int argc;
82: char **argv;
83: {
84: int c;
85: char *p;
86: int (*fcall) __P((char **));
87:
88: if (argc < 3)
89: usage();
90:
91: /*
92: * Historic versions didn't require a '-' in front of the options.
93: * Fix it, if necessary.
94: */
95: if (*argv[1] != '-') {
96: if (!(p = malloc((u_int)(strlen(argv[1]) + 2))))
97: err(1, NULL);
98: *p = '-';
99: (void)strcpy(p + 1, argv[1]);
100: argv[1] = p;
101: }
102:
103: while ((c = getopt(argc, argv, "abcdilmopqrTtuvx")) != EOF) {
104: switch(c) {
105: case 'a':
106: options |= AR_A;
107: break;
108: case 'b':
109: case 'i':
110: options |= AR_B;
111: break;
112: case 'c':
113: options |= AR_C;
114: break;
115: case 'd':
116: options |= AR_D;
117: fcall = delete;
118: break;
119: case 'l': /* not documented, compatibility only */
120: envtmp = ".";
121: break;
122: case 'm':
123: options |= AR_M;
124: fcall = move;
125: break;
126: case 'o':
127: options |= AR_O;
128: break;
129: case 'p':
130: options |= AR_P;
131: fcall = print;
132: break;
133: case 'q':
134: options |= AR_Q;
135: fcall = append;
136: break;
137: case 'r':
138: options |= AR_R;
139: fcall = replace;
140: break;
141: case 'T':
142: options |= AR_TR;
143: break;
144: case 't':
145: options |= AR_T;
146: fcall = contents;
147: break;
148: case 'u':
149: options |= AR_U;
150: break;
151: case 'v':
152: options |= AR_V;
153: break;
154: case 'x':
155: options |= AR_X;
156: fcall = extract;
157: break;
158: default:
159: usage();
160: }
161: }
162:
163: argv += optind;
164: argc -= optind;
165:
166: /* One of -dmpqrtx required. */
167: if (!(options & (AR_D|AR_M|AR_P|AR_Q|AR_R|AR_T|AR_X))) {
168: warnx("one of options -dmpqrtx is required");
169: usage();
170: }
171: /* Only one of -a and -bi allowed. */
172: if (options & AR_A && options & AR_B) {
173: warnx("only one of -a and -[bi] options allowed");
174: usage();
175: }
176: /* -ab require a position argument. */
177: if (options & (AR_A|AR_B)) {
178: if (!(posarg = *argv++)) {
179: warnx("no position operand specified");
180: usage();
181: }
182: posname = rname(posarg);
183: }
184: /* -d only valid with -Tv. */
185: if (options & AR_D && options & ~(AR_D|AR_TR|AR_V))
186: badoptions("-d");
187: /* -m only valid with -abiTv. */
188: if (options & AR_M && options & ~(AR_A|AR_B|AR_M|AR_TR|AR_V))
189: badoptions("-m");
190: /* -p only valid with -Tv. */
191: if (options & AR_P && options & ~(AR_P|AR_TR|AR_V))
192: badoptions("-p");
193: /* -q only valid with -cTv. */
194: if (options & AR_Q && options & ~(AR_C|AR_Q|AR_TR|AR_V))
195: badoptions("-q");
196: /* -r only valid with -abcuTv. */
197: if (options & AR_R && options & ~(AR_A|AR_B|AR_C|AR_R|AR_U|AR_TR|AR_V))
198: badoptions("-r");
199: /* -t only valid with -Tv. */
200: if (options & AR_T && options & ~(AR_T|AR_TR|AR_V))
201: badoptions("-t");
202: /* -x only valid with -ouTv. */
203: if (options & AR_X && options & ~(AR_O|AR_U|AR_TR|AR_V|AR_X))
204: badoptions("-x");
205:
206: if (!(archive = *argv++)) {
207: warnx("no archive specified");
208: usage();
209: }
210:
211: /* -dmqr require a list of archive elements. */
212: if (options & (AR_D|AR_M|AR_Q|AR_R) && !*argv) {
213: warnx("no archive members specified");
214: usage();
215: }
216:
217: exit((*fcall)(argv));
218: }
219:
220: static void
221: badoptions(arg)
222: char *arg;
223: {
224:
225: warnx("illegal option combination for %s", arg);
226: usage();
227: }
228:
229: static void
230: usage()
231: {
232:
233: (void)fprintf(stderr, "usage: ar -d [-Tv] archive file ...\n");
234: (void)fprintf(stderr, "\tar -m [-Tv] archive file ...\n");
235: (void)fprintf(stderr, "\tar -m [-abiTv] position archive file ...\n");
236: (void)fprintf(stderr, "\tar -p [-Tv] archive [file ...]\n");
237: (void)fprintf(stderr, "\tar -q [-cTv] archive file ...\n");
238: (void)fprintf(stderr, "\tar -r [-cuTv] archive file ...\n");
239: (void)fprintf(stderr, "\tar -r [-abciuTv] position archive file ...\n");
240: (void)fprintf(stderr, "\tar -t [-Tv] archive [file ...]\n");
241: (void)fprintf(stderr, "\tar -x [-ouTv] archive [file ...]\n");
242: exit(1);
243: }
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