Correcting tag name to be like previous ones1_3_0

1 files changed, 119 insertions, 0 deletions

diff --git a/archival/libunarchive/data_extract_all.c b/archival/libunarchive/data_extract_all.c
new file mode 100644
index 0000000..67f8f35
--- /dev/null
+++ b/archival/libunarchive/data_extract_all.c
@@ -0,0 +1,119 @@
+/* vi: set sw=4 ts=4: */
+/*
+ * Licensed under GPLv2 or later, see file LICENSE in this tarball for details.
+ */
+
+#include "libbb.h"
+#include "unarchive.h"
+
+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);
+		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("cannot remove old file");
+		}
+	}
+	else if (archive_handle->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("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);
+			}
+			data_skip(archive_handle);
+			return;
+		}
+		else if ((unlink(file_header->name) == -1) && (errno != EISDIR)) {
+			bb_perror_msg_and_die("cannot remove old file %s",
+					file_header->name);
+		}
+	}
+
+	/* 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)
+	) {
+		/* hard link */
+		res = link(file_header->link_name, file_header->name);
+		if ((res == -1) && !(archive_handle->flags & ARCHIVE_EXTRACT_QUIET)) {
+			bb_perror_msg("cannot create hard link");
+		}
+	} else {
+		/* Create the filesystem entry */
+		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_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("unrecognized file type");
+		}
+	}
+
+	if (!(archive_handle->flags & ARCHIVE_NOPRESERVE_OWN)) {
+		lchown(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);
+	}
+}