diff options
Diffstat (limited to 'Utilities/cmlibarchive/libarchive/archive_read_open_file.c')
| -rw-r--r-- | Utilities/cmlibarchive/libarchive/archive_read_open_file.c | 167 |
1 files changed, 0 insertions, 167 deletions
diff --git a/Utilities/cmlibarchive/libarchive/archive_read_open_file.c b/Utilities/cmlibarchive/libarchive/archive_read_open_file.c deleted file mode 100644 index a4f66fc..0000000 --- a/Utilities/cmlibarchive/libarchive/archive_read_open_file.c +++ /dev/null @@ -1,167 +0,0 @@ -/*- - * Copyright (c) 2003-2007 Tim Kientzle - * 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. - * 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. - */ - -#include "archive_platform.h" -__FBSDID("$FreeBSD: src/lib/libarchive/archive_read_open_file.c,v 1.20 2007/06/26 03:06:48 kientzle Exp $"); - -#ifdef HAVE_SYS_STAT_H -#include <sys/stat.h> -#endif -#ifdef HAVE_ERRNO_H -#include <errno.h> -#endif -#ifdef HAVE_FCNTL_H -#include <fcntl.h> -#endif -#ifdef HAVE_IO_H -#include <io.h> -#endif -#ifdef HAVE_STDLIB_H -#include <stdlib.h> -#endif -#ifdef HAVE_STRING_H -#include <string.h> -#endif -#ifdef HAVE_UNISTD_H -#include <unistd.h> -#endif - -#include "archive.h" - -struct read_FILE_data { - FILE *f; - size_t block_size; - void *buffer; - char can_skip; -}; - -static int file_close(struct archive *, void *); -static ssize_t file_read(struct archive *, void *, const void **buff); -#if ARCHIVE_API_VERSION < 2 -static ssize_t file_skip(struct archive *, void *, size_t request); -#else -static off_t file_skip(struct archive *, void *, off_t request); -#endif - -int -archive_read_open_FILE(struct archive *a, FILE *f) -{ - struct stat st; - struct read_FILE_data *mine; - size_t block_size = 128 * 1024; - void *b; - - archive_clear_error(a); - mine = (struct read_FILE_data *)malloc(sizeof(*mine)); - b = malloc(block_size); - if (mine == NULL || b == NULL) { - archive_set_error(a, ENOMEM, "No memory"); - free(mine); - free(b); - return (ARCHIVE_FATAL); - } - mine->block_size = block_size; - mine->buffer = b; - mine->f = f; - /* - * If we can't fstat() the file, it may just be that it's not - * a file. (FILE * objects can wrap many kinds of I/O - * streams, some of which don't support fileno()).) - */ - if (fstat(fileno(mine->f), &st) == 0 && S_ISREG(st.st_mode)) { - archive_read_extract_set_skip_file(a, st.st_dev, st.st_ino); - /* Enable the seek optimization only for regular files. */ - mine->can_skip = 1; - } else - mine->can_skip = 0; - -#if defined(__CYGWIN__) || defined(__BORLANDC__) - setmode(fileno(mine->f), O_BINARY); -#elif defined(_WIN32) - _setmode(_fileno(mine->f), _O_BINARY); -#endif - - return (archive_read_open2(a, mine, NULL, file_read, - file_skip, file_close)); -} - -static ssize_t -file_read(struct archive *a, void *client_data, const void **buff) -{ - struct read_FILE_data *mine = (struct read_FILE_data *)client_data; - ssize_t bytes_read; - - *buff = mine->buffer; - bytes_read = fread(mine->buffer, 1, mine->block_size, mine->f); - if (bytes_read < 0) { - archive_set_error(a, errno, "Error reading file"); - } - return (bytes_read); -} - -#if ARCHIVE_API_VERSION < 2 -static ssize_t -file_skip(struct archive *a, void *client_data, size_t request) -#else -static off_t -file_skip(struct archive *a, void *client_data, off_t request) -#endif -{ - struct read_FILE_data *mine = (struct read_FILE_data *)client_data; - - (void)a; /* UNUSED */ - - /* - * If we can't skip, return 0 as the amount we did step and - * the caller will work around by reading and discarding. - */ - if (!mine->can_skip) - return (0); - if (request == 0) - return (0); - -#if HAVE_FSEEKO - if (fseeko(mine->f, request, SEEK_CUR) != 0) -#else - if (fseek(mine->f, request, SEEK_CUR) != 0) -#endif - { - mine->can_skip = 0; - return (0); - } - return (request); -} - -static int -file_close(struct archive *a, void *client_data) -{ - struct read_FILE_data *mine = (struct read_FILE_data *)client_data; - - (void)a; /* UNUSED */ - if (mine->buffer != NULL) - free(mine->buffer); - free(mine); - return (ARCHIVE_OK); -} |