2 * Copyright (c) 2003-2004 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 * in this position and unchanged.
11 * 2. Redistributions in binary form must reproduce the above copyright
12 * notice, this list of conditions and the following disclaimer in the
13 * documentation and/or other materials provided with the distribution.
15 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR(S) ``AS IS'' AND ANY EXPRESS OR
16 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
17 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
18 * IN NO EVENT SHALL THE AUTHOR(S) BE LIABLE FOR ANY DIRECT, INDIRECT,
19 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
20 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
21 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
22 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
23 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
24 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
27 #include "archive_platform.h"
28 __FBSDID("$FreeBSD: src/lib/libarchive/archive_read_open_file.c,v 1.6 2004/06/27 23:36:39 kientzle Exp $");
38 #include "archive_private.h"
40 struct read_file_data {
47 static int file_close(struct archive *, void *);
48 static int file_open(struct archive *, void *);
49 static ssize_t file_read(struct archive *, void *, const void **buff);
52 archive_read_open_file(struct archive *a, const char *filename,
55 struct read_file_data *mine;
57 if (filename == NULL) {
58 mine = malloc(sizeof(*mine));
60 archive_set_error(a, ENOMEM, "No memory");
61 return (ARCHIVE_FATAL);
63 mine->filename[0] = 0;
65 mine = malloc(sizeof(*mine) + strlen(filename));
67 archive_set_error(a, ENOMEM, "No memory");
68 return (ARCHIVE_FATAL);
70 strcpy(mine->filename, filename);
72 mine->block_size = block_size;
75 return (archive_read_open(a, mine, file_open, file_read, file_close));
79 file_open(struct archive *a, void *client_data)
81 struct read_file_data *mine = client_data;
84 mine->buffer = malloc(mine->block_size);
85 if (*mine->filename != 0)
86 mine->fd = open(mine->filename, O_RDONLY);
90 archive_set_error(a, errno, "Failed to open '%s'",
92 return (ARCHIVE_FATAL);
94 if (fstat(mine->fd, &st) == 0) {
95 a->skip_file_dev = st.st_dev;
96 a->skip_file_ino = st.st_ino;
98 archive_set_error(a, errno, "Can't stat '%s'",
100 return (ARCHIVE_FATAL);
106 file_read(struct archive *a, void *client_data, const void **buff)
108 struct read_file_data *mine = client_data;
110 (void)a; /* UNUSED */
111 *buff = mine->buffer;
112 return (read(mine->fd, mine->buffer, mine->block_size));
116 file_close(struct archive *a, void *client_data)
118 struct read_file_data *mine = client_data;
120 (void)a; /* UNUSED */
123 if (mine->buffer != NULL)