+/* vi: set sw=4 ts=4: */
/*
- * 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 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.
+ * Licensed under GPLv2 or later, see file LICENSE in this tarball for details.
*/
-#include <sys/types.h>
-
-#include <errno.h>
-#include <fcntl.h>
-#include <stdlib.h>
-#include <string.h>
-#include <utime.h>
-#include <unistd.h>
-#include <stdlib.h>
-
#include "libbb.h"
#include "unarchive.h"
-extern void data_extract_all(archive_handle_t *archive_handle)
+void FAST_FUNC data_extract_all(archive_handle_t *archive_handle)
{
file_header_t *file_header = archive_handle->file_header;
int dst_fd;
int res;
- if (archive_handle->flags & ARCHIVE_CREATE_LEADING_DIRS) {
- char *name = bb_xstrdup(file_header->name);
- bb_make_directory (dirname(name), 0777, FILEUTILS_RECUR);
+ if (archive_handle->ah_flags & ARCHIVE_CREATE_LEADING_DIRS) {
+ char *name = xstrdup(file_header->name);
+ bb_make_directory(dirname(name), -1, FILEUTILS_RECUR);
free(name);
- }
+ }
/* Check if the file already exists */
- if (archive_handle->flags & ARCHIVE_EXTRACT_UNCONDITIONAL) {
- /* Remove the existing entry if it exists */
- if (((file_header->mode & S_IFMT) != S_IFDIR) && (unlink(file_header->name) == -1) && (errno != ENOENT)) {
- bb_perror_msg_and_die("Couldnt remove old file");
+ if (archive_handle->ah_flags & ARCHIVE_EXTRACT_UNCONDITIONAL) {
+ /* Remove the entry if it exists */
+ if ((!S_ISDIR(file_header->mode))
+ && (unlink(file_header->name) == -1)
+ && (errno != ENOENT)
+ ) {
+ bb_perror_msg_and_die("cannot remove old file %s",
+ file_header->name);
}
}
- else if (archive_handle->flags & ARCHIVE_EXTRACT_NEWER) {
+ else if (archive_handle->ah_flags & ARCHIVE_EXTRACT_NEWER) {
/* Remove the existing entry if its older than the extracted entry */
struct stat statbuf;
if (lstat(file_header->name, &statbuf) == -1) {
if (errno != ENOENT) {
- bb_perror_msg_and_die("Couldnt stat old file");
+ bb_perror_msg_and_die("cannot stat old file");
}
}
else if (statbuf.st_mtime <= file_header->mtime) {
- if (!(archive_handle->flags & ARCHIVE_EXTRACT_QUIET)) {
- bb_error_msg("%s not created: newer or same age file exists", file_header->name);
+ if (!(archive_handle->ah_flags & ARCHIVE_EXTRACT_QUIET)) {
+ bb_error_msg("%s not created: newer or "
+ "same age file exists", file_header->name);
}
data_skip(archive_handle);
return;
}
else if ((unlink(file_header->name) == -1) && (errno != EISDIR)) {
- bb_perror_msg_and_die("Couldnt remove old file %s", file_header->name);
+ bb_perror_msg_and_die("cannot remove old file %s",
+ file_header->name);
}
}
- /* Handle hard links seperately
+ /* Handle hard links separately
* We identified hard links as regular files of size 0 with a symlink */
- if (S_ISREG(file_header->mode) && (file_header->link_name) && (file_header->size == 0)) {
+ if (S_ISREG(file_header->mode) && (file_header->link_target)
+ && (file_header->size == 0)
+ ) {
/* hard link */
- res = link(file_header->link_name, file_header->name);
- if ((res == -1) && !(archive_handle->flags & ARCHIVE_EXTRACT_QUIET)) {
- bb_perror_msg("Couldnt create hard link");
+ res = link(file_header->link_target, file_header->name);
+ if ((res == -1) && !(archive_handle->ah_flags & ARCHIVE_EXTRACT_QUIET)) {
+ bb_perror_msg("cannot create %slink "
+ "from %s to %s", "hard",
+ file_header->name,
+ file_header->link_target);
}
} else {
/* Create the filesystem entry */
- switch(file_header->mode & S_IFMT) {
- case S_IFREG: {
- /* Regular file */
- dst_fd = bb_xopen(file_header->name, O_WRONLY | O_CREAT | O_EXCL);
- bb_copyfd_size(archive_handle->src_fd, dst_fd, file_header->size);
- close(dst_fd);
- break;
- }
- case S_IFDIR:
- res = mkdir(file_header->name, file_header->mode);
- if ((errno != EISDIR) && (res == -1) && !(archive_handle->flags & ARCHIVE_EXTRACT_QUIET)) {
- bb_perror_msg("extract_archive: %s", file_header->name);
- }
- break;
- case S_IFLNK:
- /* Symlink */
- res = symlink(file_header->link_name, file_header->name);
- if ((res == -1) && !(archive_handle->flags & ARCHIVE_EXTRACT_QUIET)) {
- bb_perror_msg("Cannot create symlink from %s to '%s'", file_header->name, file_header->link_name);
- }
- break;
- case S_IFSOCK:
- case S_IFBLK:
- case S_IFCHR:
- case S_IFIFO:
- res = mknod(file_header->name, file_header->mode, file_header->device);
- if ((res == -1) && !(archive_handle->flags & ARCHIVE_EXTRACT_QUIET)) {
- bb_perror_msg("Cannot create node %s", file_header->name);
- }
- break;
- default:
- bb_error_msg_and_die("Unrecognised file type");
+ switch (file_header->mode & S_IFMT) {
+ case S_IFREG: {
+ /* Regular file */
+ dst_fd = xopen3(file_header->name, O_WRONLY | O_CREAT | O_EXCL,
+ file_header->mode);
+ bb_copyfd_exact_size(archive_handle->src_fd, dst_fd, file_header->size);
+ close(dst_fd);
+ break;
+ }
+ case S_IFDIR:
+ res = mkdir(file_header->name, file_header->mode);
+ if ((res == -1)
+ && (errno != EISDIR) /* btw, Linux doesn't return this */
+ && (errno != EEXIST)
+ && !(archive_handle->ah_flags & ARCHIVE_EXTRACT_QUIET)
+ ) {
+ bb_perror_msg("cannot make dir %s", file_header->name);
+ }
+ break;
+ case S_IFLNK:
+ /* Symlink */
+ res = symlink(file_header->link_target, file_header->name);
+ if ((res == -1)
+ && !(archive_handle->ah_flags & ARCHIVE_EXTRACT_QUIET)
+ ) {
+ bb_perror_msg("cannot create %slink "
+ "from %s to %s", "sym",
+ file_header->name,
+ file_header->link_target);
+ }
+ break;
+ case S_IFSOCK:
+ case S_IFBLK:
+ case S_IFCHR:
+ case S_IFIFO:
+ res = mknod(file_header->name, file_header->mode, file_header->device);
+ if ((res == -1)
+ && !(archive_handle->ah_flags & ARCHIVE_EXTRACT_QUIET)
+ ) {
+ bb_perror_msg("cannot create node %s", file_header->name);
+ }
+ break;
+ default:
+ bb_error_msg_and_die("unrecognized file type");
}
}
- chown(file_header->name, file_header->uid, file_header->gid);
- chmod(file_header->name, file_header->mode);
+ if (!(archive_handle->ah_flags & ARCHIVE_NOPRESERVE_OWN)) {
+#if ENABLE_FEATURE_TAR_UNAME_GNAME
+ if (!(archive_handle->ah_flags & ARCHIVE_NUMERIC_OWNER)) {
+ uid_t uid = file_header->uid;
+ gid_t gid = file_header->gid;
- if (archive_handle->flags & ARCHIVE_PRESERVE_DATE) {
- struct utimbuf t;
- t.actime = t.modtime = file_header->mtime;
- utime(file_header->name, &t);
+ if (file_header->uname) {
+ struct passwd *pwd = getpwnam(file_header->uname);
+ if (pwd) uid = pwd->pw_uid;
+ }
+ if (file_header->gname) {
+ struct group *grp = getgrnam(file_header->gname);
+ if (grp) gid = grp->gr_gid;
+ }
+ lchown(file_header->name, uid, gid);
+ } else
+#endif
+ lchown(file_header->name, file_header->uid, file_header->gid);
+ }
+ if (S_ISLNK(file_header->mode)) {
+ /* uclibc has no lchmod, glibc is even stranger -
+ * it has lchmod which seems to do nothing!
+ * so we use chmod... */
+ if (!(archive_handle->ah_flags & ARCHIVE_NOPRESERVE_PERM)) {
+ chmod(file_header->name, file_header->mode);
+ }
+ /* same for utime */
+ if (archive_handle->ah_flags & ARCHIVE_PRESERVE_DATE) {
+ struct utimbuf t;
+ t.actime = t.modtime = file_header->mtime;
+ utime(file_header->name, &t);
+ }
}
}
projects / oweals / busybox.git / blobdiff