mirror of https://github.com/mirror/busybox.git
Reorganise unarchive functions, new files, removed some
Glenn L McGrath
parent
9aff903603
commit
17822cd60a
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@ -0,0 +1,31 @@
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/*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU Library General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
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*/
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#include "libbb.h"
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file_headers_t *add_from_archive_list(file_headers_t *master_list, file_headers_t *new_list, const char *filename)
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{
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file_headers_t *list_ptr;
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list_ptr = master_list;
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while (list_ptr != NULL) {
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if (strcmp(filename, list_ptr->name) == 0) {
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return(append_archive_list(new_list, list_ptr));
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}
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list_ptr = list_ptr->next;
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}
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return(NULL);
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}
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@ -0,0 +1,39 @@
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/*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU Library General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
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*/
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#include <stdlib.h>
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#include "libbb.h"
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file_headers_t *append_archive_list(file_headers_t *head, file_headers_t *tail_entry)
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{
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file_headers_t *tail_ptr;
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file_headers_t *new_node = (file_headers_t *) malloc(sizeof(file_headers_t));
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*new_node = *tail_entry;
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new_node->next = NULL;
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if (head->name == NULL) {
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head = new_node;
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} else {
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tail_ptr = head;
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while(tail_ptr->next != NULL) {
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tail_ptr = tail_ptr->next;
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}
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tail_ptr->next = new_node;
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}
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return(head);
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}
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@ -0,0 +1,132 @@
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/*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU Library General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
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*/
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#include <stdlib.h>
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#include <string.h>
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#include <time.h>
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#include <unistd.h>
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#include <utime.h>
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#include "libbb.h"
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/* Extract files in the linear linked list 'extract_headers' to either
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* filesystem, stdout or buffer depending on the value of 'function' which is
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* described in extract_files.h
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*
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* prefix doesnt have to be just a directory, it may prefix the filename as well.
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*
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* e.g. '/var/lib/dpkg/info/dpkg.' will extract all files to the base bath
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* '/var/lib/dpkg/info/' and all files/dirs created in that dir will have
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* 'dpkg.' as their prefix
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*
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* For this reason if prefix does point to a dir then it must end with a
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* trailing '/' or else the last dir will be assumed to be the file prefix
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*/
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char *extract_archive(FILE *src_stream, FILE *out_stream, file_headers_t *extract_headers, int function, const char *prefix)
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{
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FILE *dst_stream = NULL;
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char *full_name = NULL;
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char *buffer = NULL;
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size_t uncompressed_count = 0;
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struct utimbuf t;
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/* find files to extract or display */
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while (extract_headers != NULL) {
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/* prefix doesnt have to be a proper path it may prepend
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* the filename as well */
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if (prefix != NULL) {
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/* strip leading '/' in filename to extract as prefix may not be dir */
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char *tmp_str = strchr(extract_headers->name, '/');
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if (tmp_str == NULL) {
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tmp_str = extract_headers->name;
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} else {
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tmp_str++;
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}
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/* Cant use concat_path_file here as prefix might not be a directory */
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full_name = xmalloc(strlen(prefix) + strlen(tmp_str) + 1);
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strcpy(full_name, prefix);
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strcat(full_name, tmp_str);
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} else {
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full_name = extract_headers->name;
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}
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/* Seek to start of file, have to use fgetc as src_stream may be a pipe
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* you cant [lf]seek on pipes */
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while (uncompressed_count < extract_headers->offset) {
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fgetc(src_stream);
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uncompressed_count++;
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}
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if (S_ISREG(extract_headers->mode)) {
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if (function & extract_to_stdout) {
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copy_file_chunk(src_stream, out_stream, extract_headers->size);
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uncompressed_count += extract_headers->size;
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}
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else if (function & extract_all_to_fs) {
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dst_stream = wfopen(full_name, "w");
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copy_file_chunk(src_stream, dst_stream, extract_headers->size);
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uncompressed_count += extract_headers->size;
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fclose(dst_stream);
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}
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else if (function & extract_one_to_buffer) {
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buffer = (char *) xmalloc(extract_headers->size + 1);
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fread(buffer, 1, extract_headers->size, src_stream);
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break;
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}
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}
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#if defined BB_DPKG | defined BB_DPKG_DEB
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else if (S_ISDIR(extract_headers->mode)) {
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if (function & extract_all_to_fs) {
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if (create_path(full_name, extract_headers->mode) == FALSE) {
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perror_msg("Cannot mkdir %s", extract_headers->name);
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return NULL;
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}
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}
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}
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else if (S_ISLNK(extract_headers->mode)) {
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if (function & extract_all_to_fs) {
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if (symlink(extract_headers->link_name, full_name) < 0) {
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perror_msg("Cannot create hard link from %s to '%s'", extract_headers->name, extract_headers->link_name);
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return NULL;
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}
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}
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}
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#endif
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if (function & extract_verbose_list) {
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fprintf(out_stream, "%s %d/%d %8d %s ", mode_string(extract_headers->mode),
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extract_headers->uid, extract_headers->gid,
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(int) extract_headers->size, time_string(extract_headers->mtime));
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}
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if ((function & extract_list) || (function & extract_verbose_list)){
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/* fputs doesnt add a trailing \n, so use fprintf */
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fprintf(out_stream, "%s\n", extract_headers->name);
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}
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if (function & extract_preserve_date) {
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t.actime = extract_headers->mtime;
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t.modtime = extract_headers->mtime;
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utime(full_name, &t);
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}
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chmod(full_name, extract_headers->mode);
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free(full_name);
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extract_headers = extract_headers->next;
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}
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return(buffer);
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}
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@ -0,0 +1,64 @@
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/*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU Library General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
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*/
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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/*
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* Continue reading from file until the terminating string is encountered.
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* Return data as string.
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* e.g. fgets_str(file, "\n"); will read till end of file
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*/
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char *fgets_str(FILE *file, const char *terminating_string)
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{
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char *linebuf = NULL;
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const int term_length = strlen(terminating_string);
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int end_string_offset;
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int linebufsz = 0;
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int idx = 0;
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int ch;
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while (1) {
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ch = fgetc(file);
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if (ch == EOF) {
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break;
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}
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/* grow the line buffer as necessary */
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while (idx > linebufsz - 2) {
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linebuf = realloc(linebuf, linebufsz += 1000); /* GROWBY */
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}
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linebuf[idx] = ch;
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idx++;
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/* Check for terminating string */
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end_string_offset = idx - term_length;
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if ((end_string_offset > 0) && (memcmp(&linebuf[end_string_offset], terminating_string, term_length) == 0)) {
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idx -= term_length;
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break;
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}
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}
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if (idx == 0) {
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return NULL;
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}
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linebuf[idx] = '\0';
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return(linebuf);
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}
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@ -0,0 +1,39 @@
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/*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU Library General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
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*/
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#include <stdio.h>
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#include <unistd.h>
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#include "libbb.h"
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file_headers_t *get_tar_gz_headers(FILE *compressed_stream)
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{
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FILE *uncompressed_stream;
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file_headers_t *tar_headers_tree;
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int gunzip_pid;
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int gz_fd ;
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/* open a stream of decompressed data */
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gz_fd = gz_open(compressed_stream, &gunzip_pid);
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if (gz_fd == -1) {
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error_msg("Couldnt initialise gzip stream");
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}
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uncompressed_stream = fdopen(gz_fd, "r");
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tar_headers_tree = get_tar_headers(uncompressed_stream);
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fclose(uncompressed_stream);
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close(gz_fd);
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gz_close(gunzip_pid);
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return(tar_headers_tree);
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}
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@ -0,0 +1,111 @@
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/*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
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|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
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|
* GNU Library General Public License for more details.
|
||||||
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*
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* You should have received a copy of the GNU General Public License
|
||||||
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
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*/
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#include <stdlib.h>
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#include <string.h>
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#include <unistd.h>
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#include "libbb.h"
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file_headers_t *get_tar_headers(FILE *tar_stream)
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{
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typedef struct raw_tar_header {
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char name[100]; /* 0-99 */
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char mode[8]; /* 100-107 */
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char uid[8]; /* 108-115 */
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char gid[8]; /* 116-123 */
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char size[12]; /* 124-135 */
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char mtime[12]; /* 136-147 */
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char chksum[8]; /* 148-155 */
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char typeflag; /* 156-156 */
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char linkname[100]; /* 157-256 */
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char magic[6]; /* 257-262 */
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char version[2]; /* 263-264 */
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char uname[32]; /* 265-296 */
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char gname[32]; /* 297-328 */
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char devmajor[8]; /* 329-336 */
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char devminor[8]; /* 337-344 */
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char prefix[155]; /* 345-499 */
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char padding[12]; /* 500-512 */
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} raw_tar_header_t;
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raw_tar_header_t raw_tar_header;
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unsigned char *temp = (unsigned char *) &raw_tar_header;
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file_headers_t *tar_headers_list = (file_headers_t *) calloc(1, sizeof(file_headers_t));
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file_headers_t *tar_entry;
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long i;
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long next_header_offset = 0;
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long current_offset = 0;
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while (fread((char *) &raw_tar_header, 1, 512, tar_stream) == 512) {
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long sum = 0;
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current_offset += 512;
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/* Check header has valid magic, unfortunately some tar files
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* have empty (0'ed) tar entries at the end, which will
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* cause this to fail, so fail silently for now
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*/
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if (strncmp(raw_tar_header.magic, "ustar", 5) != 0) {
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// error_msg("invalid magic, [%s]\n", raw_tar_header.magic);
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break;
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}
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/* Do checksum on headers */
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||||||
|
for (i = 0; i < 148 ; i++) {
|
||||||
|
sum += temp[i];
|
||||||
|
}
|
||||||
|
sum += ' ' * 8;
|
||||||
|
for (i = 156; i < 512 ; i++) {
|
||||||
|
sum += temp[i];
|
||||||
|
}
|
||||||
|
if (sum != strtol(raw_tar_header.chksum, NULL, 8)) {
|
||||||
|
error_msg("Invalid tar header checksum");
|
||||||
|
break;
|
||||||
|
}
|
||||||
|
|
||||||
|
/* convert to type'ed variables */
|
||||||
|
tar_entry = xcalloc(1, sizeof(file_headers_t));
|
||||||
|
tar_entry->name = xstrdup(raw_tar_header.name);
|
||||||
|
|
||||||
|
tar_entry->offset = (off_t) current_offset;
|
||||||
|
parse_mode(raw_tar_header.mode, &tar_entry->mode);
|
||||||
|
tar_entry->uid = strtol(raw_tar_header.uid, NULL, 8);
|
||||||
|
tar_entry->gid = strtol(raw_tar_header.gid, NULL, 8);
|
||||||
|
tar_entry->size = strtol(raw_tar_header.size, NULL, 8);
|
||||||
|
tar_entry->mtime = strtol(raw_tar_header.mtime, NULL, 8);
|
||||||
|
tar_entry->link_name = xstrdup(raw_tar_header.linkname);
|
||||||
|
// tar_entry->devmajor = strtol(rawHeader->devmajor, NULL, 8);
|
||||||
|
// tar_entry->devminor = strtol(rawHeader->devminor, NULL, 8);
|
||||||
|
|
||||||
|
tar_headers_list = append_archive_list(tar_headers_list, tar_entry);
|
||||||
|
|
||||||
|
/* start of next header is at */
|
||||||
|
next_header_offset = current_offset + tar_entry->size;
|
||||||
|
|
||||||
|
if (tar_entry->size % 512 != 0) {
|
||||||
|
next_header_offset += (512 - tar_entry->size % 512);
|
||||||
|
}
|
||||||
|
/*
|
||||||
|
* Seek to start of next block, cant use fseek as unzip() does support it
|
||||||
|
*/
|
||||||
|
while (current_offset < next_header_offset) {
|
||||||
|
if (fgetc(tar_stream) == EOF) {
|
||||||
|
break;
|
||||||
|
}
|
||||||
|
current_offset++;
|
||||||
|
}
|
||||||
|
}
|
||||||
|
return(tar_headers_list);
|
||||||
|
}
|
||||||
|
|
||||||
|
|
@ -1,38 +0,0 @@
|
||||||
#include <stdio.h>
|
|
||||||
#include <stdlib.h>
|
|
||||||
#include <string.h>
|
|
||||||
#include "libbb.h"
|
|
||||||
|
|
||||||
/*
|
|
||||||
* Reads consecutive lines from file line that start with end_string
|
|
||||||
* read finishes at an empty line or eof
|
|
||||||
*/
|
|
||||||
extern char *read_text_file_to_buffer(FILE *src_file)
|
|
||||||
{
|
|
||||||
char *line = NULL;
|
|
||||||
char *buffer = NULL;
|
|
||||||
int buffer_length = 0;
|
|
||||||
int line_length = 0;
|
|
||||||
|
|
||||||
buffer = xmalloc(1);
|
|
||||||
strcpy(buffer, "");
|
|
||||||
|
|
||||||
/* Loop until line is empty, or just one char, which will be '\n' */
|
|
||||||
do {
|
|
||||||
line = get_line_from_file(src_file);
|
|
||||||
if (line == NULL) {
|
|
||||||
break;
|
|
||||||
}
|
|
||||||
line_length = strlen(line);
|
|
||||||
buffer_length += line_length + 1;
|
|
||||||
buffer = (char *) xrealloc(buffer, buffer_length + 1);
|
|
||||||
strcat(buffer, line);
|
|
||||||
free(line);
|
|
||||||
} while (line_length > 1);
|
|
||||||
|
|
||||||
if (strlen(buffer) == 0) {
|
|
||||||
return(NULL);
|
|
||||||
} else {
|
|
||||||
return(strdup(buffer));
|
|
||||||
}
|
|
||||||
}
|
|
||||||
225
libbb/untar.c
225
libbb/untar.c
|
|
@ -1,225 +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.
|
|
||||||
*
|
|
||||||
* NOTE: This is used by deb_extract to avoid calling the whole tar applet.
|
|
||||||
* Its functionality should be merged with tar to avoid duplication
|
|
||||||
*/
|
|
||||||
|
|
||||||
#include <stdlib.h>
|
|
||||||
#include <string.h>
|
|
||||||
#include <unistd.h>
|
|
||||||
#include "libbb.h"
|
|
||||||
|
|
||||||
/*
|
|
||||||
* stdout can be redircted to FILE *output
|
|
||||||
* If const char *file_prefix isnt NULL is prepended to all the extracted filenames.
|
|
||||||
* The purpose of const char *argument depends on the value of const int untar_function
|
|
||||||
*/
|
|
||||||
|
|
||||||
extern char *untar(FILE *src_tar_file, FILE *output, const int untar_function,
|
|
||||||
const char *argument, const char *file_prefix)
|
|
||||||
{
|
|
||||||
typedef struct raw_tar_header {
|
|
||||||
char name[100]; /* 0-99 */
|
|
||||||
char mode[8]; /* 100-107 */
|
|
||||||
char uid[8]; /* 108-115 */
|
|
||||||
char gid[8]; /* 116-123 */
|
|
||||||
char size[12]; /* 124-135 */
|
|
||||||
char mtime[12]; /* 136-147 */
|
|
||||||
char chksum[8]; /* 148-155 */
|
|
||||||
char typeflag; /* 156-156 */
|
|
||||||
char linkname[100]; /* 157-256 */
|
|
||||||
char magic[6]; /* 257-262 */
|
|
||||||
char version[2]; /* 263-264 */
|
|
||||||
char uname[32]; /* 265-296 */
|
|
||||||
char gname[32]; /* 297-328 */
|
|
||||||
char devmajor[8]; /* 329-336 */
|
|
||||||
char devminor[8]; /* 337-344 */
|
|
||||||
char prefix[155]; /* 345-499 */
|
|
||||||
char padding[12]; /* 500-512 */
|
|
||||||
} raw_tar_header_t;
|
|
||||||
|
|
||||||
raw_tar_header_t raw_tar_header;
|
|
||||||
unsigned char *temp = (unsigned char *) &raw_tar_header;
|
|
||||||
long i;
|
|
||||||
long next_header_offset = 0;
|
|
||||||
long uncompressed_count = 0;
|
|
||||||
size_t size;
|
|
||||||
mode_t mode;
|
|
||||||
|
|
||||||
while (fread((char *) &raw_tar_header, 1, 512, src_tar_file) == 512) {
|
|
||||||
long sum = 0;
|
|
||||||
|
|
||||||
if (ferror(src_tar_file) || feof(src_tar_file)) {
|
|
||||||
perror_msg("untar: ");
|
|
||||||
break;
|
|
||||||
}
|
|
||||||
|
|
||||||
uncompressed_count += 512;
|
|
||||||
|
|
||||||
/* Check header has valid magic */
|
|
||||||
if (strncmp(raw_tar_header.magic, "ustar", 5) != 0) {
|
|
||||||
/*
|
|
||||||
* FIXME, Need HELP with this
|
|
||||||
*
|
|
||||||
* This has to fail silently or it incorrectly reports errors when called from
|
|
||||||
* deb_extract.
|
|
||||||
* The problem is deb_extract decompresses the .gz file in a child process and
|
|
||||||
* untar reads from the child proccess. The child process finishes and exits,
|
|
||||||
* but fread reads 0's from the src_tar_file even though the child
|
|
||||||
* closed its handle.
|
|
||||||
*/
|
|
||||||
// error_msg("Invalid tar magic");
|
|
||||||
break;
|
|
||||||
}
|
|
||||||
|
|
||||||
/* Do checksum on headers */
|
|
||||||
for (i = 0; i < 148 ; i++) {
|
|
||||||
sum += temp[i];
|
|
||||||
}
|
|
||||||
sum += ' ' * 8;
|
|
||||||
for (i = 156; i < 512 ; i++) {
|
|
||||||
sum += temp[i];
|
|
||||||
}
|
|
||||||
if (sum != strtol(raw_tar_header.chksum, NULL, 8)) {
|
|
||||||
error_msg("Invalid tar header checksum");
|
|
||||||
break;
|
|
||||||
}
|
|
||||||
|
|
||||||
/* convert to type'ed variables */
|
|
||||||
size = strtol(raw_tar_header.size, NULL, 8);
|
|
||||||
parse_mode(raw_tar_header.mode, &mode);
|
|
||||||
|
|
||||||
/* start of next header is at */
|
|
||||||
next_header_offset = uncompressed_count + size;
|
|
||||||
if (size % 512 != 0) {
|
|
||||||
next_header_offset += (512 - size % 512);
|
|
||||||
}
|
|
||||||
|
|
||||||
/* If an exclude list is specified check current file against list */
|
|
||||||
#if 0
|
|
||||||
if (*exclude_list != NULL) {
|
|
||||||
i = 0;
|
|
||||||
while (exclude_list[i] != 0) {
|
|
||||||
if (strncmp(exclude_list[i], raw_tar_header.name, strlen(raw_tar_header.name)) == 0) {
|
|
||||||
break;
|
|
||||||
}
|
|
||||||
i++;
|
|
||||||
}
|
|
||||||
if (exclude_list[i] != 0) {
|
|
||||||
continue;
|
|
||||||
}
|
|
||||||
}
|
|
||||||
#endif
|
|
||||||
if (untar_function & (extract_contents | extract_verbose_extract | extract_contents_to_file)) {
|
|
||||||
fprintf(output, "%s\n", raw_tar_header.name);
|
|
||||||
}
|
|
||||||
|
|
||||||
switch (raw_tar_header.typeflag ) {
|
|
||||||
case '0':
|
|
||||||
case '\0': {
|
|
||||||
/* If the name ends in a '/' then assume it is
|
|
||||||
* supposed to be a directory, and fall through
|
|
||||||
*/
|
|
||||||
int name_length = strlen(raw_tar_header.name);
|
|
||||||
if (raw_tar_header.name[name_length - 1] != '/') {
|
|
||||||
switch (untar_function) {
|
|
||||||
case (extract_extract):
|
|
||||||
case (extract_verbose_extract):
|
|
||||||
case (extract_control): {
|
|
||||||
FILE *dst_file = NULL;
|
|
||||||
char *full_name;
|
|
||||||
|
|
||||||
if (file_prefix != NULL) {
|
|
||||||
full_name = xmalloc(strlen(argument) + strlen(file_prefix) + name_length + 3);
|
|
||||||
sprintf(full_name, "%s/%s.%s", argument, file_prefix, strrchr(raw_tar_header.name, '/') + 1);
|
|
||||||
} else {
|
|
||||||
full_name = concat_path_file(argument, raw_tar_header.name);
|
|
||||||
}
|
|
||||||
dst_file = wfopen(full_name, "w");
|
|
||||||
copy_file_chunk(src_tar_file, dst_file, (unsigned long long) size);
|
|
||||||
uncompressed_count += size;
|
|
||||||
fclose(dst_file);
|
|
||||||
chmod(full_name, mode);
|
|
||||||
free(full_name);
|
|
||||||
}
|
|
||||||
break;
|
|
||||||
case (extract_info):
|
|
||||||
if (strstr(raw_tar_header.name, argument) != NULL) {
|
|
||||||
copy_file_chunk(src_tar_file, stdout, (unsigned long long) size);
|
|
||||||
uncompressed_count += size;
|
|
||||||
}
|
|
||||||
break;
|
|
||||||
case (extract_field):
|
|
||||||
if (strstr(raw_tar_header.name, "./control") != NULL) {
|
|
||||||
return(read_text_file_to_buffer(src_tar_file));
|
|
||||||
}
|
|
||||||
break;
|
|
||||||
}
|
|
||||||
break;
|
|
||||||
}
|
|
||||||
}
|
|
||||||
case '5':
|
|
||||||
if (untar_function & (extract_extract | extract_verbose_extract | extract_control)) {
|
|
||||||
int ret;
|
|
||||||
char *dir;
|
|
||||||
dir = concat_path_file(argument, raw_tar_header.name);
|
|
||||||
ret = create_path(dir, mode);
|
|
||||||
free(dir);
|
|
||||||
if (ret == FALSE) {
|
|
||||||
perror_msg("%s: Cannot mkdir", raw_tar_header.name);
|
|
||||||
return NULL;
|
|
||||||
}
|
|
||||||
chmod(dir, mode);
|
|
||||||
}
|
|
||||||
break;
|
|
||||||
case '1':
|
|
||||||
if (untar_function & (extract_extract | extract_verbose_extract | extract_control)) {
|
|
||||||
if (link(raw_tar_header.linkname, raw_tar_header.name) < 0) {
|
|
||||||
perror_msg("%s: Cannot create hard link to '%s'", raw_tar_header.name, raw_tar_header.linkname);
|
|
||||||
return NULL;
|
|
||||||
}
|
|
||||||
}
|
|
||||||
break;
|
|
||||||
case '2':
|
|
||||||
if (untar_function & (extract_extract | extract_verbose_extract | extract_control)) {
|
|
||||||
if (symlink(raw_tar_header.linkname, raw_tar_header.name) < 0) {
|
|
||||||
perror_msg("%s: Cannot create symlink to '%s'", raw_tar_header.name, raw_tar_header.linkname);
|
|
||||||
return NULL;
|
|
||||||
}
|
|
||||||
}
|
|
||||||
break;
|
|
||||||
case '3':
|
|
||||||
case '4':
|
|
||||||
case '6':
|
|
||||||
// if (tarExtractSpecial( &header, extractFlag, tostdoutFlag)==FALSE)
|
|
||||||
// errorFlag=TRUE;
|
|
||||||
// break;
|
|
||||||
default:
|
|
||||||
error_msg("Unknown file type '%c' in tar file", raw_tar_header.typeflag);
|
|
||||||
return NULL;
|
|
||||||
}
|
|
||||||
/*
|
|
||||||
* Seek to start of next block, cant use fseek as unzip() does support it
|
|
||||||
*/
|
|
||||||
while (uncompressed_count < next_header_offset) {
|
|
||||||
if (fgetc(src_tar_file) == EOF) {
|
|
||||||
break;
|
|
||||||
}
|
|
||||||
uncompressed_count++;
|
|
||||||
}
|
|
||||||
}
|
|
||||||
return NULL;
|
|
||||||
}
|
|
||||||
Loading…
Reference in New Issue