2 * Copyright (c) 2003-2007 Tim Kientzle
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
8 * 1. Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright
11 * notice, this list of conditions and the following disclaimer in the
12 * documentation and/or other materials provided with the distribution.
14 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR(S) ``AS IS'' AND ANY EXPRESS OR
15 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
16 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
17 * IN NO EVENT SHALL THE AUTHOR(S) BE LIABLE FOR ANY DIRECT, INDIRECT,
18 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
19 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
20 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
21 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
22 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
23 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
26 #include "archive_platform.h"
27 __FBSDID("$FreeBSD: src/lib/libarchive/archive_write_open_filename.c,v 1.19 2007/01/09 08:05:56 kientzle Exp $");
29 #ifdef HAVE_SYS_STAT_H
50 struct write_file_data {
55 static int file_close(struct archive *, void *);
56 static int file_open(struct archive *, void *);
57 static ssize_t file_write(struct archive *, void *, const void *buff, size_t);
60 archive_write_open_file(struct archive *a, const char *filename)
62 return (archive_write_open_filename(a, filename));
66 archive_write_open_filename(struct archive *a, const char *filename)
68 struct write_file_data *mine;
70 if (filename == NULL || filename[0] == '\0') {
71 mine = (struct write_file_data *)malloc(sizeof(*mine));
73 archive_set_error(a, ENOMEM, "No memory");
74 return (ARCHIVE_FATAL);
76 mine->filename[0] = '\0'; /* Record that we're using stdout. */
78 mine = (struct write_file_data *)malloc(sizeof(*mine) + strlen(filename));
80 archive_set_error(a, ENOMEM, "No memory");
81 return (ARCHIVE_FATAL);
83 strcpy(mine->filename, filename);
86 return (archive_write_open(a, mine,
87 file_open, file_write, file_close));
91 file_open(struct archive *a, void *client_data)
94 struct write_file_data *mine;
97 mine = (struct write_file_data *)client_data;
98 flags = O_WRONLY | O_CREAT | O_TRUNC;
103 if (mine->filename[0] != '\0') {
104 mine->fd = open(mine->filename, flags, 0666);
106 archive_set_error(a, errno, "Failed to open '%s'",
108 return (ARCHIVE_FATAL);
112 * NULL filename is stdout.
115 /* By default, pad archive when writing to stdout. */
116 if (archive_write_get_bytes_in_last_block(a) < 0)
117 archive_write_set_bytes_in_last_block(a, 0);
120 if (fstat(mine->fd, &st) != 0) {
121 archive_set_error(a, errno, "Couldn't stat '%s'",
123 return (ARCHIVE_FATAL);
127 * Set up default last block handling.
129 if (archive_write_get_bytes_in_last_block(a) < 0) {
130 if (S_ISCHR(st.st_mode) || S_ISBLK(st.st_mode) ||
131 S_ISFIFO(st.st_mode))
132 /* Pad last block when writing to device or FIFO. */
133 archive_write_set_bytes_in_last_block(a, 0);
135 /* Don't pad last block otherwise. */
136 archive_write_set_bytes_in_last_block(a, 1);
140 * If the output file is a regular file, don't add it to
141 * itself. If it's a device file, it's okay to add the device
142 * entry to the output archive.
144 if (S_ISREG(st.st_mode))
145 archive_write_set_skip_file(a, st.st_dev, st.st_ino);
151 file_write(struct archive *a, void *client_data, const void *buff, size_t length)
153 struct write_file_data *mine;
154 ssize_t bytesWritten;
156 mine = (struct write_file_data *)client_data;
157 bytesWritten = write(mine->fd, buff, length);
158 if (bytesWritten <= 0) {
159 archive_set_error(a, errno, "Write error");
162 return (bytesWritten);
166 file_close(struct archive *a, void *client_data)
168 struct write_file_data *mine = (struct write_file_data *)client_data;
170 (void)a; /* UNUSED */
171 if (mine->filename[0] != '\0')