cpio: implement -R/--owner
Implement -R/--owner to force ownership of files.
function old new delta
cpio_main 532 586 +54
get_header_cpio 909 939 +30
print 36 65 +29
cpio_o 804 832 +28
cpio_TRAILER - 11 +11
packed_usage 30667 30662 -5
static.trailer 11 - -11
------------------------------------------------------------------------------
(add/remove: 1/1 grow/shrink: 4/1 up/down: 152/-16) Total: 136 bytes
Signed-off-by: Aaro Koskinen <aaro.koskinen@iki.fi>
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
diff --git a/archival/libarchive/get_header_cpio.c b/archival/libarchive/get_header_cpio.c
index 7861d1f..badd4a8 100644
--- a/archival/libarchive/get_header_cpio.c
+++ b/archival/libarchive/get_header_cpio.c
@@ -52,6 +52,11 @@
&major, &minor, &namesize) != 10)
bb_error_msg_and_die("damaged cpio file");
file_header->mode = mode;
+ /* "cpio -R USER:GRP" support: */
+ if (archive_handle->cpio__owner.uid != (uid_t)-1L)
+ uid = archive_handle->cpio__owner.uid;
+ if (archive_handle->cpio__owner.gid != (gid_t)-1L)
+ gid = archive_handle->cpio__owner.gid;
file_header->uid = uid;
file_header->gid = gid;
file_header->mtime = mtime;
@@ -75,7 +80,7 @@
/* Update offset amount and skip padding before file contents */
data_align(archive_handle, 4);
- if (strcmp(file_header->name, "TRAILER!!!") == 0) {
+ if (strcmp(file_header->name, cpio_TRAILER) == 0) {
/* Always round up. ">> 9" divides by 512 */
archive_handle->cpio__blocks = (uoff_t)(archive_handle->offset + 511) >> 9;
goto create_hardlinks;