freebsd-skq/usr.bin/ar/ar.c
emaste 71cb38c340 ar: enable reproducible output by default when invoked as 'ar -s'
ar output is already deterministic by default for ar -q and ar -r, and
when invoked as ranlib. Make ar -s equivalent to ranlib and enable
deterministic output by default in that case too.

PR:		210330
Reviewed by:	bdrewery
Approved by:	re (gjb)
MFC after:	1 week
Sponsored by:	The FreeBSD Foundation
Differential Revision:	https://reviews.freebsd.org/D6871
2016-06-16 21:22:26 +00:00

421 lines
10 KiB
C

/*-
* Copyright (c) 2007 Kai Wang
* Copyright (c) 2007 Tim Kientzle
* Copyright (c) 2007 Joseph Koshy
* All rights reserved.
*
* 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
* in this position and unchanged.
* 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.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR(S) ``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 AUTHOR(S) 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.
*/
/*-
* 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.
*/
#include <sys/cdefs.h>
__FBSDID("$FreeBSD$");
#include <sys/queue.h>
#include <sys/types.h>
#include <archive.h>
#include <errno.h>
#include <getopt.h>
#include <libgen.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <sysexits.h>
#include "ar.h"
enum options
{
OPTION_HELP
};
static struct option longopts[] =
{
{"help", no_argument, NULL, OPTION_HELP},
{"version", no_argument, NULL, 'V'},
{NULL, 0, NULL, 0}
};
static void bsdar_usage(void);
static void ranlib_usage(void);
static void set_mode(struct bsdar *bsdar, char opt);
static void only_mode(struct bsdar *bsdar, const char *opt,
const char *valid_modes);
static void bsdar_version(void);
static void ranlib_version(void);
int
main(int argc, char **argv)
{
struct bsdar *bsdar, bsdar_storage;
char *p;
size_t len;
int i, opt, Dflag, Uflag;
bsdar = &bsdar_storage;
memset(bsdar, 0, sizeof(*bsdar));
Dflag = 0;
Uflag = 0;
if ((bsdar->progname = getprogname()) == NULL)
bsdar->progname = "ar";
/* Act like ranlib if our name ends in "ranlib"; this
* accommodates arm-freebsd7.1-ranlib, bsdranlib, etc. */
len = strlen(bsdar->progname);
if (len >= strlen("ranlib") &&
strcmp(bsdar->progname + len - strlen("ranlib"), "ranlib") == 0) {
while ((opt = getopt_long(argc, argv, "tDUV", longopts,
NULL)) != -1) {
switch(opt) {
case 't':
/* Ignored. */
break;
case 'D':
Dflag = 1;
Uflag = 0;
break;
case 'U':
Uflag = 1;
Dflag = 0;
break;
case 'V':
ranlib_version();
break;
case OPTION_HELP:
ranlib_usage();
default:
ranlib_usage();
}
}
argv += optind;
argc -= optind;
if (*argv == NULL)
ranlib_usage();
/* Enable determinstic mode unless -U is set. */
if (Uflag == 0)
bsdar->options |= AR_D;
bsdar->options |= AR_S;
while ((bsdar->filename = *argv++) != NULL)
ar_mode_s(bsdar);
exit(EX_OK);
} else {
if (argc < 2)
bsdar_usage();
if (*argv[1] != '-') {
len = strlen(argv[1]) + 2;
if ((p = malloc(len)) == NULL)
bsdar_errc(bsdar, EX_SOFTWARE, errno,
"malloc failed");
*p = '-';
(void)strlcpy(p + 1, argv[1], len - 1);
argv[1] = p;
}
}
while ((opt = getopt_long(argc, argv, "abCcdDfijlMmopqrSsTtUuVvxz",
longopts, NULL)) != -1) {
switch(opt) {
case 'a':
bsdar->options |= AR_A;
break;
case 'b':
case 'i':
bsdar->options |= AR_B;
break;
case 'C':
bsdar->options |= AR_CC;
break;
case 'c':
bsdar->options |= AR_C;
break;
case 'd':
set_mode(bsdar, opt);
break;
case 'D':
Dflag = 1;
Uflag = 0;
break;
case 'f':
case 'T':
bsdar->options |= AR_TR;
break;
case 'j':
/* ignored */
break;
case 'l':
/* ignored, for GNU ar comptibility */
break;
case 'M':
set_mode(bsdar, opt);
break;
case 'm':
set_mode(bsdar, opt);
break;
case 'o':
bsdar->options |= AR_O;
break;
case 'p':
set_mode(bsdar, opt);
break;
case 'q':
set_mode(bsdar, opt);
break;
case 'r':
set_mode(bsdar, opt);
break;
case 'S':
bsdar->options |= AR_SS;
break;
case 's':
bsdar->options |= AR_S;
break;
case 't':
set_mode(bsdar, opt);
break;
case 'U':
Uflag = 1;
Dflag = 0;
break;
case 'u':
bsdar->options |= AR_U;
break;
case 'V':
bsdar_version();
break;
case 'v':
bsdar->options |= AR_V;
break;
case 'x':
set_mode(bsdar, opt);
break;
case 'z':
/* ignored */
break;
case OPTION_HELP:
bsdar_usage();
default:
bsdar_usage();
}
}
argv += optind;
argc -= optind;
if (*argv == NULL && bsdar->mode != 'M')
bsdar_usage();
if (bsdar->options & AR_A && bsdar->options & AR_B)
bsdar_errc(bsdar, EX_USAGE, 0,
"only one of -a and -[bi] options allowed");
if (bsdar->options & AR_J && bsdar->options & AR_Z)
bsdar_errc(bsdar, EX_USAGE, 0,
"only one of -j and -z options allowed");
if (bsdar->options & AR_S && bsdar->options & AR_SS)
bsdar_errc(bsdar, EX_USAGE, 0,
"only one of -s and -S options allowed");
if (bsdar->options & (AR_A | AR_B)) {
if (*argv == NULL)
bsdar_errc(bsdar, EX_USAGE, 0,
"no position operand specified");
if ((bsdar->posarg = basename(*argv)) == NULL)
bsdar_errc(bsdar, EX_SOFTWARE, errno,
"basename failed");
argc--;
argv++;
}
/* Set determinstic mode for -D, and by default without -U. */
if (Dflag || (Uflag == 0 && (bsdar->mode == 'q' || bsdar->mode == 'r' ||
(bsdar->mode == '\0' && bsdar->options & AR_S))))
bsdar->options |= AR_D;
if (bsdar->options & AR_A)
only_mode(bsdar, "-a", "mqr");
if (bsdar->options & AR_B)
only_mode(bsdar, "-b", "mqr");
if (bsdar->options & AR_C)
only_mode(bsdar, "-c", "qr");
if (bsdar->options & AR_CC)
only_mode(bsdar, "-C", "x");
if (Dflag)
only_mode(bsdar, "-D", "qr");
if (Uflag)
only_mode(bsdar, "-U", "qr");
if (bsdar->options & AR_O)
only_mode(bsdar, "-o", "x");
if (bsdar->options & AR_SS)
only_mode(bsdar, "-S", "mqr");
if (bsdar->options & AR_U)
only_mode(bsdar, "-u", "qrx");
if (bsdar->mode == 'M') {
ar_mode_script(bsdar);
exit(EX_OK);
}
if ((bsdar->filename = *argv) == NULL)
bsdar_usage();
bsdar->argc = --argc;
bsdar->argv = ++argv;
if ((!bsdar->mode || strchr("ptx", bsdar->mode)) &&
bsdar->options & AR_S) {
ar_mode_s(bsdar);
if (!bsdar->mode)
exit(EX_OK);
}
switch(bsdar->mode) {
case 'd':
ar_mode_d(bsdar);
break;
case 'm':
ar_mode_m(bsdar);
break;
case 'p':
ar_mode_p(bsdar);
break;
case 'q':
ar_mode_q(bsdar);
break;
case 'r':
ar_mode_r(bsdar);
break;
case 't':
ar_mode_t(bsdar);
break;
case 'x':
ar_mode_x(bsdar);
break;
default:
bsdar_usage();
/* NOTREACHED */
}
for (i = 0; i < bsdar->argc; i++)
if (bsdar->argv[i] != NULL)
bsdar_warnc(bsdar, 0, "%s: not found in archive",
bsdar->argv[i]);
exit(EX_OK);
}
static void
set_mode(struct bsdar *bsdar, char opt)
{
if (bsdar->mode != '\0' && bsdar->mode != opt)
bsdar_errc(bsdar, EX_USAGE, 0,
"Can't specify both -%c and -%c", opt, bsdar->mode);
bsdar->mode = opt;
}
static void
only_mode(struct bsdar *bsdar, const char *opt, const char *valid_modes)
{
if (strchr(valid_modes, bsdar->mode) == NULL)
bsdar_errc(bsdar, EX_USAGE, 0,
"Option %s is not permitted in mode -%c", opt, bsdar->mode);
}
static void
bsdar_usage(void)
{
(void)fprintf(stderr, "usage: ar -d [-Tjsvz] archive file ...\n");
(void)fprintf(stderr, "\tar -m [-Tjsvz] archive file ...\n");
(void)fprintf(stderr, "\tar -m [-Tabijsvz] position archive file ...\n");
(void)fprintf(stderr, "\tar -p [-Tv] archive [file ...]\n");
(void)fprintf(stderr, "\tar -q [-TcDjsUvz] archive file ...\n");
(void)fprintf(stderr, "\tar -r [-TcDjsUuvz] archive file ...\n");
(void)fprintf(stderr, "\tar -r [-TabcDijsUuvz] position archive file ...\n");
(void)fprintf(stderr, "\tar -s [-jz] archive\n");
(void)fprintf(stderr, "\tar -t [-Tv] archive [file ...]\n");
(void)fprintf(stderr, "\tar -x [-CTouv] archive [file ...]\n");
(void)fprintf(stderr, "\tar -V\n");
exit(EX_USAGE);
}
static void
ranlib_usage(void)
{
(void)fprintf(stderr, "usage: ranlib [-DtU] archive ...\n");
(void)fprintf(stderr, "\tranlib -V\n");
exit(EX_USAGE);
}
static void
bsdar_version(void)
{
(void)printf("BSD ar %s - %s\n", BSDAR_VERSION, archive_version_string());
exit(EX_OK);
}
static void
ranlib_version(void)
{
(void)printf("ranlib %s - %s\n", BSDAR_VERSION, archive_version_string());
exit(EX_OK);
}