tar: real support for -p. +200 if selected.

By Natanael Copa <natanael.copa at gmail.com> 

1 files changed, 15 insertions, 0 deletions

diff --git a/archival/libunarchive/data_extract_all.c b/archival/libunarchive/data_extract_all.c
index 76e7edf..4df9c09 100644
--- a/archival/libunarchive/data_extract_all.c
+++ b/archival/libunarchive/data_extract_all.c
@@ -112,7 +112,22 @@ void data_extract_all(archive_handle_t *archive_handle)
 	}
 
 	if (!(archive_handle->flags & ARCHIVE_NOPRESERVE_OWN)) {
+#if ENABLE_FEATURE_TAR_UNAME_GNAME
+		uid_t uid = file_header->uid;
+		gid_t gid = file_header->gid;
+
+		if (file_header->uname) {
+			struct passwd *pwd = getpwnam(file_header->uname);
+			if (pwd) uid = pwd->pw_uid;
+		}
+		if (file_header->gname) {
+			struct group *grp = getgrnam(file_header->gname);
+			if (grp) gid = grp->gr_gid;
+		}
+		lchown(file_header->name, uid, gid);
+#else
 		lchown(file_header->name, file_header->uid, file_header->gid);
+#endif
 	}
 	if ((file_header->mode & S_IFMT) != S_IFLNK) {
 		/* uclibc has no lchmod, glibc is even stranger -