1d192f3d3SKai Wang /*-
24d846d26SWarner Losh * SPDX-License-Identifier: BSD-2-Clause
3be72428eSEd Maste *
4d192f3d3SKai Wang * Copyright (c) 2007 Kai Wang
5d192f3d3SKai Wang * Copyright (c) 2007 Tim Kientzle
6d192f3d3SKai Wang * All rights reserved.
7d192f3d3SKai Wang *
8d192f3d3SKai Wang * Redistribution and use in source and binary forms, with or without
9d192f3d3SKai Wang * modification, are permitted provided that the following conditions
10d192f3d3SKai Wang * are met:
11d192f3d3SKai Wang * 1. Redistributions of source code must retain the above copyright
12be72428eSEd Maste * notice, this list of conditions and the following disclaimer.
13d192f3d3SKai Wang * 2. Redistributions in binary form must reproduce the above copyright
14d192f3d3SKai Wang * notice, this list of conditions and the following disclaimer in the
15d192f3d3SKai Wang * documentation and/or other materials provided with the distribution.
16d192f3d3SKai Wang *
17be72428eSEd Maste * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
18be72428eSEd Maste * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
19be72428eSEd Maste * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
20be72428eSEd Maste * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
21be72428eSEd Maste * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
22be72428eSEd Maste * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
23be72428eSEd Maste * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
24be72428eSEd Maste * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
25be72428eSEd Maste * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
26be72428eSEd Maste * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
27be72428eSEd Maste * SUCH DAMAGE.
28d192f3d3SKai Wang */
29d192f3d3SKai Wang
30d192f3d3SKai Wang #include <sys/cdefs.h>
31d192f3d3SKai Wang #include <sys/queue.h>
32d192f3d3SKai Wang #include <sys/stat.h>
33d192f3d3SKai Wang #include <archive.h>
34d192f3d3SKai Wang #include <archive_entry.h>
3557aaefdcSEd Maste #include <assert.h>
36d192f3d3SKai Wang #include <errno.h>
37d192f3d3SKai Wang #include <libgen.h>
38d192f3d3SKai Wang #include <stdio.h>
3938911b3cSEd Maste #include <stdlib.h>
40d192f3d3SKai Wang #include <string.h>
41d192f3d3SKai Wang
42d192f3d3SKai Wang #include "ar.h"
43d192f3d3SKai Wang
44d192f3d3SKai Wang /*
45d192f3d3SKai Wang * Handle read modes: 'x', 't' and 'p'.
46d192f3d3SKai Wang */
4757aaefdcSEd Maste int
ar_read_archive(struct bsdar * bsdar,int mode,FILE * out)4841e6398fSMark Johnston ar_read_archive(struct bsdar *bsdar, int mode, FILE *out)
49d192f3d3SKai Wang {
50d192f3d3SKai Wang struct archive *a;
51d192f3d3SKai Wang struct archive_entry *entry;
52d192f3d3SKai Wang struct stat sb;
53d192f3d3SKai Wang struct tm *tp;
54d192f3d3SKai Wang const char *bname;
55d192f3d3SKai Wang const char *name;
56d192f3d3SKai Wang mode_t md;
57d192f3d3SKai Wang size_t size;
58d192f3d3SKai Wang time_t mtime;
59d192f3d3SKai Wang uid_t uid;
60d192f3d3SKai Wang gid_t gid;
61d192f3d3SKai Wang char **av;
62d192f3d3SKai Wang char buf[25];
63d192f3d3SKai Wang char find;
6438911b3cSEd Maste int exitcode, flags, r, i;
65d192f3d3SKai Wang
6657aaefdcSEd Maste assert(mode == 'p' || mode == 't' || mode == 'x');
6757aaefdcSEd Maste
68d192f3d3SKai Wang if ((a = archive_read_new()) == NULL)
69086f0908SEd Maste bsdar_errc(bsdar, 0, "archive_read_new failed");
70dc7c0661STim Kientzle archive_read_support_format_ar(a);
71ebb8fc42SMartin Matuska AC(archive_read_open_filename(a, bsdar->filename, DEF_BLKSZ));
72d192f3d3SKai Wang
7338911b3cSEd Maste exitcode = EXIT_SUCCESS;
7438911b3cSEd Maste
75d192f3d3SKai Wang for (;;) {
76d192f3d3SKai Wang r = archive_read_next_header(a, &entry);
77d192f3d3SKai Wang if (r == ARCHIVE_WARN || r == ARCHIVE_RETRY ||
78d192f3d3SKai Wang r == ARCHIVE_FATAL)
79ccd8660bSEd Maste bsdar_warnc(bsdar, archive_errno(a), "%s",
80ccd8660bSEd Maste archive_error_string(a));
81d192f3d3SKai Wang if (r == ARCHIVE_EOF || r == ARCHIVE_FATAL)
82d192f3d3SKai Wang break;
83d192f3d3SKai Wang if (r == ARCHIVE_RETRY) {
84d192f3d3SKai Wang bsdar_warnc(bsdar, 0, "Retrying...");
85d192f3d3SKai Wang continue;
86d192f3d3SKai Wang }
87d192f3d3SKai Wang
8863bf16a1SEd Maste if ((name = archive_entry_pathname(entry)) == NULL)
8963bf16a1SEd Maste break;
90d192f3d3SKai Wang
91d192f3d3SKai Wang /* Skip pseudo members. */
92fabed6b2SEd Maste if (strcmp(name, "/") == 0 || strcmp(name, "//") == 0 ||
93fabed6b2SEd Maste strcmp(name, "/SYM64/") == 0)
94d192f3d3SKai Wang continue;
95d192f3d3SKai Wang
96d192f3d3SKai Wang if (bsdar->argc > 0) {
97d192f3d3SKai Wang find = 0;
98d192f3d3SKai Wang for(i = 0; i < bsdar->argc; i++) {
99d192f3d3SKai Wang av = &bsdar->argv[i];
100d192f3d3SKai Wang if (*av == NULL)
101d192f3d3SKai Wang continue;
102d192f3d3SKai Wang if ((bname = basename(*av)) == NULL)
103086f0908SEd Maste bsdar_errc(bsdar, errno,
104d192f3d3SKai Wang "basename failed");
105d192f3d3SKai Wang if (strcmp(bname, name) != 0)
106d192f3d3SKai Wang continue;
107d192f3d3SKai Wang
108d192f3d3SKai Wang *av = NULL;
109d192f3d3SKai Wang find = 1;
110d192f3d3SKai Wang break;
111d192f3d3SKai Wang }
112d192f3d3SKai Wang if (!find)
113d192f3d3SKai Wang continue;
114d192f3d3SKai Wang }
115d192f3d3SKai Wang
116d192f3d3SKai Wang if (mode == 't') {
117d192f3d3SKai Wang if (bsdar->options & AR_V) {
118d192f3d3SKai Wang md = archive_entry_mode(entry);
119d192f3d3SKai Wang uid = archive_entry_uid(entry);
120d192f3d3SKai Wang gid = archive_entry_gid(entry);
121d192f3d3SKai Wang size = archive_entry_size(entry);
122d192f3d3SKai Wang mtime = archive_entry_mtime(entry);
123d192f3d3SKai Wang (void)strmode(md, buf);
12441e6398fSMark Johnston (void)fprintf(out, "%s %6d/%-6d %8ju ",
125d192f3d3SKai Wang buf + 1, uid, gid, (uintmax_t)size);
126d192f3d3SKai Wang tp = localtime(&mtime);
127d192f3d3SKai Wang (void)strftime(buf, sizeof(buf),
128d192f3d3SKai Wang "%b %e %H:%M %Y", tp);
12941e6398fSMark Johnston (void)fprintf(out, "%s %s", buf, name);
130d192f3d3SKai Wang } else
13141e6398fSMark Johnston (void)fprintf(out, "%s", name);
132d192f3d3SKai Wang r = archive_read_data_skip(a);
133d192f3d3SKai Wang if (r == ARCHIVE_WARN || r == ARCHIVE_RETRY ||
134d192f3d3SKai Wang r == ARCHIVE_FATAL) {
13541e6398fSMark Johnston (void)fprintf(out, "\n");
136ccd8660bSEd Maste bsdar_warnc(bsdar, archive_errno(a), "%s",
137d192f3d3SKai Wang archive_error_string(a));
138d192f3d3SKai Wang }
139d192f3d3SKai Wang
140d192f3d3SKai Wang if (r == ARCHIVE_FATAL)
141d192f3d3SKai Wang break;
142d192f3d3SKai Wang
14341e6398fSMark Johnston (void)fprintf(out, "\n");
144d192f3d3SKai Wang } else {
145d192f3d3SKai Wang /* mode == 'x' || mode = 'p' */
146d192f3d3SKai Wang if (mode == 'p') {
147d192f3d3SKai Wang if (bsdar->options & AR_V) {
14841e6398fSMark Johnston (void)fprintf(out, "\n<%s>\n\n",
149d192f3d3SKai Wang name);
15041e6398fSMark Johnston fflush(out);
151d192f3d3SKai Wang }
152d192f3d3SKai Wang r = archive_read_data_into_fd(a, 1);
153d192f3d3SKai Wang } else {
154d192f3d3SKai Wang /* mode == 'x' */
155d192f3d3SKai Wang if (stat(name, &sb) != 0) {
156d192f3d3SKai Wang if (errno != ENOENT) {
157d192f3d3SKai Wang bsdar_warnc(bsdar, 0,
158d192f3d3SKai Wang "stat %s failed",
159d192f3d3SKai Wang bsdar->filename);
160d192f3d3SKai Wang continue;
161d192f3d3SKai Wang }
162d192f3d3SKai Wang } else {
163d192f3d3SKai Wang /* stat success, file exist */
164d192f3d3SKai Wang if (bsdar->options & AR_CC)
165d192f3d3SKai Wang continue;
166d192f3d3SKai Wang if (bsdar->options & AR_U &&
167d192f3d3SKai Wang archive_entry_mtime(entry) <=
168d192f3d3SKai Wang sb.st_mtime)
169d192f3d3SKai Wang continue;
170d192f3d3SKai Wang }
171d192f3d3SKai Wang
172d192f3d3SKai Wang if (bsdar->options & AR_V)
17341e6398fSMark Johnston (void)fprintf(out, "x - %s\n", name);
17456ad9419SEd Maste /* Disallow absolute paths. */
17556ad9419SEd Maste if (name[0] == '/') {
17656ad9419SEd Maste bsdar_warnc(bsdar, 0,
17756ad9419SEd Maste "Absolute path '%s'", name);
17856ad9419SEd Maste continue;
17956ad9419SEd Maste }
18056ad9419SEd Maste /* Basic path security flags. */
1810f9b4b57SEd Maste flags = ARCHIVE_EXTRACT_SECURE_SYMLINKS |
18256ad9419SEd Maste ARCHIVE_EXTRACT_SECURE_NODOTDOT;
183d192f3d3SKai Wang if (bsdar->options & AR_O)
184d192f3d3SKai Wang flags |= ARCHIVE_EXTRACT_TIME;
185d192f3d3SKai Wang
186d192f3d3SKai Wang r = archive_read_extract(a, entry, flags);
187d192f3d3SKai Wang }
188d192f3d3SKai Wang
18938911b3cSEd Maste if (r) {
190ccd8660bSEd Maste bsdar_warnc(bsdar, archive_errno(a), "%s",
191d192f3d3SKai Wang archive_error_string(a));
19238911b3cSEd Maste exitcode = EXIT_FAILURE;
193d192f3d3SKai Wang }
194d192f3d3SKai Wang }
19538911b3cSEd Maste }
19638911b3cSEd Maste
19738911b3cSEd Maste if (r == ARCHIVE_FATAL)
19838911b3cSEd Maste exitcode = EXIT_FAILURE;
19938911b3cSEd Maste
200d192f3d3SKai Wang AC(archive_read_close(a));
201ebb8fc42SMartin Matuska AC(archive_read_free(a));
20238911b3cSEd Maste
20338911b3cSEd Maste return (exitcode);
204d192f3d3SKai Wang }
205