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5dfab45b42
ar(1)'s dependencies on compressor libraries -lz, -lbz2 and -llzma and fixes building HEAD on some versions of FreeBSD[78]. Option -j and -z is now accepted but ignored. Compressed ar(1) archives are not useful without a ld(1) that can read them. Also, the current ar(1) compression scheme prevents random access of archive members and needs to be redesigned anyway. Submitted by: kientzle (original patch) Reviewed by: delphij Discussed on: -current mailing list
205 lines
5.1 KiB
C
205 lines
5.1 KiB
C
/*-
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* Copyright (c) 2007 Kai Wang
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* Copyright (c) 2007 Tim Kientzle
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer
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* in this position and unchanged.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR(S) ``AS IS'' AND ANY EXPRESS OR
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* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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* IN NO EVENT SHALL THE AUTHOR(S) BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#include <sys/cdefs.h>
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__FBSDID("$FreeBSD$");
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#include <sys/queue.h>
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#include <sys/stat.h>
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#include <archive.h>
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#include <archive_entry.h>
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#include <errno.h>
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#include <libgen.h>
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#include <stdio.h>
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#include <string.h>
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#include <sysexits.h>
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#include "ar.h"
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static void read_archive(struct bsdar *bsdar, char mode);
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void
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ar_mode_p(struct bsdar *bsdar)
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{
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read_archive(bsdar, 'p');
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}
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void
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ar_mode_t(struct bsdar *bsdar)
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{
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read_archive(bsdar, 't');
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}
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void
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ar_mode_x(struct bsdar *bsdar)
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{
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read_archive(bsdar, 'x');
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}
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/*
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* Handle read modes: 'x', 't' and 'p'.
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*/
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static void
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read_archive(struct bsdar *bsdar, char mode)
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{
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struct archive *a;
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struct archive_entry *entry;
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struct stat sb;
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struct tm *tp;
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const char *bname;
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const char *name;
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mode_t md;
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size_t size;
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time_t mtime;
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uid_t uid;
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gid_t gid;
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char **av;
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char buf[25];
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char find;
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int flags, r, i;
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if ((a = archive_read_new()) == NULL)
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bsdar_errc(bsdar, EX_SOFTWARE, 0, "archive_read_new failed");
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archive_read_support_compression_none(a);
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archive_read_support_format_ar(a);
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AC(archive_read_open_file(a, bsdar->filename, DEF_BLKSZ));
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for (;;) {
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r = archive_read_next_header(a, &entry);
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if (r == ARCHIVE_WARN || r == ARCHIVE_RETRY ||
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r == ARCHIVE_FATAL)
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bsdar_warnc(bsdar, 0, "%s", archive_error_string(a));
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if (r == ARCHIVE_EOF || r == ARCHIVE_FATAL)
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break;
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if (r == ARCHIVE_RETRY) {
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bsdar_warnc(bsdar, 0, "Retrying...");
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continue;
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}
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name = archive_entry_pathname(entry);
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/* Skip pseudo members. */
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if (strcmp(name, "/") == 0 || strcmp(name, "//") == 0)
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continue;
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if (bsdar->argc > 0) {
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find = 0;
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for(i = 0; i < bsdar->argc; i++) {
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av = &bsdar->argv[i];
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if (*av == NULL)
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continue;
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if ((bname = basename(*av)) == NULL)
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bsdar_errc(bsdar, EX_SOFTWARE, errno,
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"basename failed");
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if (strcmp(bname, name) != 0)
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continue;
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*av = NULL;
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find = 1;
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break;
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}
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if (!find)
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continue;
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}
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if (mode == 't') {
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if (bsdar->options & AR_V) {
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md = archive_entry_mode(entry);
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uid = archive_entry_uid(entry);
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gid = archive_entry_gid(entry);
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size = archive_entry_size(entry);
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mtime = archive_entry_mtime(entry);
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(void)strmode(md, buf);
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(void)fprintf(stdout, "%s %6d/%-6d %8ju ",
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buf + 1, uid, gid, (uintmax_t)size);
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tp = localtime(&mtime);
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(void)strftime(buf, sizeof(buf),
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"%b %e %H:%M %Y", tp);
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(void)fprintf(stdout, "%s %s", buf, name);
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} else
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(void)fprintf(stdout, "%s", name);
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r = archive_read_data_skip(a);
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if (r == ARCHIVE_WARN || r == ARCHIVE_RETRY ||
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r == ARCHIVE_FATAL) {
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(void)fprintf(stdout, "\n");
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bsdar_warnc(bsdar, 0, "%s",
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archive_error_string(a));
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}
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if (r == ARCHIVE_FATAL)
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break;
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(void)fprintf(stdout, "\n");
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} else {
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/* mode == 'x' || mode = 'p' */
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if (mode == 'p') {
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if (bsdar->options & AR_V) {
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(void)fprintf(stdout, "\n<%s>\n\n",
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name);
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fflush(stdout);
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}
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r = archive_read_data_into_fd(a, 1);
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} else {
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/* mode == 'x' */
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if (stat(name, &sb) != 0) {
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if (errno != ENOENT) {
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bsdar_warnc(bsdar, 0,
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"stat %s failed",
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bsdar->filename);
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continue;
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}
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} else {
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/* stat success, file exist */
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if (bsdar->options & AR_CC)
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continue;
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if (bsdar->options & AR_U &&
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archive_entry_mtime(entry) <=
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sb.st_mtime)
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continue;
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}
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if (bsdar->options & AR_V)
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(void)fprintf(stdout, "x - %s\n", name);
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flags = 0;
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if (bsdar->options & AR_O)
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flags |= ARCHIVE_EXTRACT_TIME;
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r = archive_read_extract(a, entry, flags);
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}
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if (r)
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bsdar_warnc(bsdar, 0, "%s",
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archive_error_string(a));
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}
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}
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AC(archive_read_close(a));
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AC(archive_read_finish(a));
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}
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