Unlink before mkdir, mknod, symlink to overwrite

diff --git a/archival/libunarchive/data_extract_all.c b/archival/libunarchive/data_extract_all.c
index dda514771e44b46a4360d70804cb00439da0eaa5..7ab87e73e935c86ba43bf8b96619e7d743debff7 100644 (file)
--- a/archival/libunarchive/data_extract_all.c
+++ b/archival/libunarchive/data_extract_all.c
@@ -60,6 +60,7 @@ extern void data_extract_all(archive_handle_t *archive_handle)
                        break;
                }
                case S_IFDIR:
+                       unlink(file_header->name);
                        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);
@@ -67,6 +68,7 @@ extern void data_extract_all(archive_handle_t *archive_handle)
                        break;
                case S_IFLNK:
                        /* Symlink */
+                       unlink(file_header->name);
                        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);
@@ -76,6 +78,7 @@ extern void data_extract_all(archive_handle_t *archive_handle)
                case S_IFBLK:
                case S_IFCHR:
                case S_IFIFO:
+                       unlink(file_header->name);
                        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);