OpenBSD-4.6/usr.bin/ar/ar.c
/* $OpenBSD: ar.c,v 1.11 2003/06/12 20:58:08 deraadt Exp $ */
/* $NetBSD: ar.c,v 1.5 1995/03/26 03:27:44 glass Exp $ */
/*-
* Copyright (c) 1990, 1993, 1994
* The Regents of the University of California. All rights reserved.
*
* This code is derived from software contributed to Berkeley by
* Hugh Smith at The University of Guelph.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. Neither the name of the University nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*/
#ifndef lint
static char copyright[] =
"@(#) Copyright (c) 1990, 1993, 1994\n\
The Regents of the University of California. All rights reserved.\n";
#endif /* not lint */
#ifndef lint
#if 0
static char sccsid[] = "@(#)ar.c 8.3 (Berkeley) 4/2/94";
#else
static char rcsid[] = "$OpenBSD: ar.c,v 1.11 2003/06/12 20:58:08 deraadt Exp $";
#endif
#endif /* not lint */
#include <sys/param.h>
#include <ar.h>
#include <dirent.h>
#include <err.h>
#include <paths.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
#include "archive.h"
#include "extern.h"
CHDR chdr;
u_int options;
char *archive, *envtmp, *posarg, *posname;
static void badoptions(char *);
static void usage(void);
/*
* main --
* main basically uses getopt to parse options and calls the appropriate
* functions. Some hacks that let us be backward compatible with 4.3 ar
* option parsing and sanity checking.
*/
int
main(int argc, char *argv[])
{
int c;
char *p;
int (*fcall)(char **);
if (argc < 3)
usage();
/*
* Historic versions didn't require a '-' in front of the options.
* Fix it, if necessary.
*/
if (*argv[1] != '-') {
size_t len;
len = (u_int)(strlen(argv[1]) + 2);
if (!(p = malloc(len)))
err(1, NULL);
*p = '-';
(void)strlcpy(p + 1, argv[1], len - 1);
argv[1] = p;
}
while ((c = getopt(argc, argv, "abcCdilmopqrTtuvx")) != -1) {
switch(c) {
case 'a':
options |= AR_A;
break;
case 'b':
case 'i':
options |= AR_B;
break;
case 'c':
options |= AR_C;
break;
case 'C':
options |= AR_CC;
break;
case 'd':
options |= AR_D;
fcall = delete;
break;
case 'l': /* not documented, compatibility only */
envtmp = ".";
break;
case 'm':
options |= AR_M;
fcall = move;
break;
case 'o':
options |= AR_O;
break;
case 'p':
options |= AR_P;
fcall = print;
break;
case 'q':
options |= AR_Q;
fcall = append;
break;
case 'r':
options |= AR_R;
fcall = replace;
break;
case 'T':
options |= AR_TR;
break;
case 't':
options |= AR_T;
fcall = contents;
break;
case 'u':
options |= AR_U;
break;
case 'v':
options |= AR_V;
break;
case 'x':
options |= AR_X;
fcall = extract;
break;
default:
usage();
}
}
argv += optind;
argc -= optind;
/* One of -dmpqrtx required. */
if (!(options & (AR_D|AR_M|AR_P|AR_Q|AR_R|AR_T|AR_X))) {
warnx("one of options -dmpqrtx is required");
usage();
}
/* Only one of -a and -bi allowed. */
if (options & AR_A && options & AR_B) {
warnx("only one of -a and -[bi] options allowed");
usage();
}
/* -ab require a position argument. */
if (options & (AR_A|AR_B)) {
if (!(posarg = *argv++)) {
warnx("no position operand specified");
usage();
}
posname = rname(posarg);
}
/* -d only valid with -Tv. */
if (options & AR_D && options & ~(AR_D|AR_TR|AR_V))
badoptions("-d");
/* -m only valid with -abiTv. */
if (options & AR_M && options & ~(AR_A|AR_B|AR_M|AR_TR|AR_V))
badoptions("-m");
/* -p only valid with -Tv. */
if (options & AR_P && options & ~(AR_P|AR_TR|AR_V))
badoptions("-p");
/* -q only valid with -cTv. */
if (options & AR_Q && options & ~(AR_C|AR_Q|AR_TR|AR_V))
badoptions("-q");
/* -r only valid with -abcuTv. */
if (options & AR_R && options & ~(AR_A|AR_B|AR_C|AR_R|AR_U|AR_TR|AR_V))
badoptions("-r");
/* -t only valid with -Tv. */
if (options & AR_T && options & ~(AR_T|AR_TR|AR_V))
badoptions("-t");
/* -x only valid with -CouTv. */
if (options & AR_X && options & ~(AR_O|AR_U|AR_TR|AR_V|AR_X|AR_CC))
badoptions("-x");
if (!(archive = *argv++)) {
warnx("no archive specified");
usage();
}
exit((*fcall)(argv));
}
static void
badoptions(char *arg)
{
warnx("illegal option combination for %s", arg);
usage();
}
static void
usage(void)
{
(void)fprintf(stderr, "usage: ar -d [-Tv] archive file ...\n");
(void)fprintf(stderr, "\tar -m [-Tv] archive file ...\n");
(void)fprintf(stderr, "\tar -m [-abiTv] position archive file ...\n");
(void)fprintf(stderr, "\tar -p [-Tv] archive [file ...]\n");
(void)fprintf(stderr, "\tar -q [-cTv] archive file ...\n");
(void)fprintf(stderr, "\tar -r [-cuTv] archive file ...\n");
(void)fprintf(stderr, "\tar -r [-abciuTv] position archive file ...\n");
(void)fprintf(stderr, "\tar -t [-Tv] archive [file ...]\n");
(void)fprintf(stderr, "\tar -x [-CouTv] archive [file ...]\n");
exit(1);
}