busybox/archival/libunarchive/data_extract_all.c

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/*
* 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.
*/
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#include <sys/types.h>
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#include <errno.h>
#include <fcntl.h>
#include <stdlib.h>
#include <string.h>
#include <utime.h>
#include <unistd.h>
#include <stdlib.h>
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#include "libbb.h"
#include "unarchive.h"
extern void 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 = xstrdup(file_header->name);
make_directory (dirname(name), 0777, FILEUTILS_RECUR);
free(name);
}
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/* Create the filesystem entry */
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switch(file_header->mode & S_IFMT) {
case S_IFREG: {
#ifdef CONFIG_CPIO
if (file_header->link_name) {
/* hard link */
res = link(file_header->link_name, file_header->name);
if ((res == -1) && !(archive_handle->flags & ARCHIVE_EXTRACT_QUIET)) {
perror_msg("Couldnt create hard link");
}
} else
#endif
{
/* Regular file */
dst_fd = xopen(file_header->name, O_WRONLY | O_CREAT);
archive_copy_file(archive_handle, dst_fd);
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close(dst_fd);
}
break;
}
case S_IFDIR:
unlink(file_header->name);
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res = mkdir(file_header->name, file_header->mode);
if ((res == -1) && !(archive_handle->flags & ARCHIVE_EXTRACT_QUIET)) {
perror_msg("extract_archive: %s", file_header->name);
}
break;
case S_IFLNK:
/* Symlink */
unlink(file_header->name);
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res = symlink(file_header->link_name, file_header->name);
if ((res == -1) && !(archive_handle->flags & ARCHIVE_EXTRACT_QUIET)) {
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:
unlink(file_header->name);
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res = mknod(file_header->name, file_header->mode, file_header->device);
if ((res == -1) && !(archive_handle->flags & ARCHIVE_EXTRACT_QUIET)) {
perror_msg("Cannot create node %s", file_header->name);
}
break;
}
chmod(file_header->name, file_header->mode);
chown(file_header->name, file_header->uid, 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);
}
}