diff options
Diffstat (limited to 'libbb/extract_archive.c')
| -rw-r--r-- | libbb/extract_archive.c | 132 |
1 files changed, 0 insertions, 132 deletions
diff --git a/libbb/extract_archive.c b/libbb/extract_archive.c deleted file mode 100644 index f22cbb6..0000000 --- a/libbb/extract_archive.c +++ /dev/null @@ -1,132 +0,0 @@ -/* - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU Library General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. - */ - -#include <stdlib.h> -#include <string.h> -#include <time.h> -#include <unistd.h> -#include <utime.h> -#include "libbb.h" - -/* Extract files in the linear linked list 'extract_headers' to either - * filesystem, stdout or buffer depending on the value of 'function' which is - * described in extract_files.h - * - * prefix doesnt have to be just a directory, it may prefix the filename as well. - * - * e.g. '/var/lib/dpkg/info/dpkg.' will extract all files to the base bath - * '/var/lib/dpkg/info/' and all files/dirs created in that dir will have - * 'dpkg.' as their prefix - * - * For this reason if prefix does point to a dir then it must end with a - * trailing '/' or else the last dir will be assumed to be the file prefix - */ - -char *extract_archive(FILE *src_stream, FILE *out_stream, file_headers_t *extract_headers, int function, const char *prefix) -{ - FILE *dst_stream = NULL; - char *full_name = NULL; - char *buffer = NULL; - size_t uncompressed_count = 0; - struct utimbuf t; - - /* find files to extract or display */ - while (extract_headers != NULL) { - /* prefix doesnt have to be a proper path it may prepend - * the filename as well */ - if (prefix != NULL) { - /* strip leading '/' in filename to extract as prefix may not be dir */ - char *tmp_str = strchr(extract_headers->name, '/'); - if (tmp_str == NULL) { - tmp_str = extract_headers->name; - } else { - tmp_str++; - } - /* Cant use concat_path_file here as prefix might not be a directory */ - full_name = xmalloc(strlen(prefix) + strlen(tmp_str) + 1); - strcpy(full_name, prefix); - strcat(full_name, tmp_str); - } else { - full_name = extract_headers->name; - } - - /* Seek to start of file, have to use fgetc as src_stream may be a pipe - * you cant [lf]seek on pipes */ - while (uncompressed_count < extract_headers->offset) { - fgetc(src_stream); - uncompressed_count++; - } - - if (S_ISREG(extract_headers->mode)) { - if (function & extract_to_stdout) { - copy_file_chunk(src_stream, out_stream, extract_headers->size); - uncompressed_count += extract_headers->size; - } - else if (function & extract_all_to_fs) { - dst_stream = wfopen(full_name, "w"); - copy_file_chunk(src_stream, dst_stream, extract_headers->size); - uncompressed_count += extract_headers->size; - fclose(dst_stream); - } - else if (function & extract_one_to_buffer) { - buffer = (char *) xmalloc(extract_headers->size + 1); - fread(buffer, 1, extract_headers->size, src_stream); - break; - } - } -#if defined BB_DPKG | defined BB_DPKG_DEB - else if (S_ISDIR(extract_headers->mode)) { - if (function & extract_all_to_fs) { - if (create_path(full_name, extract_headers->mode) == FALSE) { - perror_msg("Cannot mkdir %s", extract_headers->name); - return NULL; - } - } - } - else if (S_ISLNK(extract_headers->mode)) { - if (function & extract_all_to_fs) { - if (symlink(extract_headers->link_name, full_name) < 0) { - perror_msg("Cannot create hard link from %s to '%s'", extract_headers->name, extract_headers->link_name); - return NULL; - } - } - } -#endif - if (function & extract_verbose_list) { - fprintf(out_stream, "%s %d/%d %8d %s ", mode_string(extract_headers->mode), - extract_headers->uid, extract_headers->gid, - (int) extract_headers->size, time_string(extract_headers->mtime)); - } - - if ((function & extract_list) || (function & extract_verbose_list)){ - /* fputs doesnt add a trailing \n, so use fprintf */ - fprintf(out_stream, "%s\n", extract_headers->name); - } - - if (function & extract_preserve_date) { - t.actime = extract_headers->mtime; - t.modtime = extract_headers->mtime; - utime(full_name, &t); - } - chmod(full_name, extract_headers->mode); - free(full_name); - - extract_headers = extract_headers->next; - } - - return(buffer); -} - |