New common unarchive code.

1 files changed, 76 insertions, 0 deletions

diff --git a/archival/libunarchive/data_extract_all.c b/archival/libunarchive/data_extract_all.c
new file mode 100644
index 000000000..20d99aa58
--- /dev/null
+++ b/archival/libunarchive/data_extract_all.c
@@ -0,0 +1,76 @@
+#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)
+{
+	file_header_t *file_header = archive_handle->file_header;
+	int dst_fd;
+	int res;
+
+	if (archive_handle->flags & ARCHIVE_CREATE_LEADING_DIRS) {
+		char *dir = dirname(strdup(file_header->name));
+		make_directory (dir, 0777, FILEUTILS_RECUR);
+		free(dir);
+	}
+
+	/* Create the file */
+	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);
+				copy_file_chunk_fd(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) && !(archive_handle->flags & ARCHIVE_EXTRACT_QUIET)) {
+				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)) {
+				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)) {
+				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);
+	}
+}