disable xattrs on symlinks for now

there's no nice syscall to manipulate xattrs with atfd and
or open the symlink without dereferencing it (and having fd
that we can do xattrs with)

src/archive.c

@@ -476,7 +476,7 @@ int apk_archive_entry_extract(int atfd, const struct apk_file_info *ae,
 	}
 
 	/* extract xattrs */
-	if (ae->xattrs && ae->xattrs->num) {
+	if (!S_ISLNK(ae->mode) && ae->xattrs && ae->xattrs->num) {
 		r = 0;
 		fd = openat(atfd, fn, O_RDWR);
 		if (fd >= 0) {

src/audit.c

@@ -110,7 +110,7 @@ static int audit_file(struct audit_ctx *actx,
 	if (dbf->csum.type != APK_CHECKSUM_NONE &&
 	    apk_checksum_compare(&fi.csum, &dbf->csum) != 0)
 		rv = 'U';
-	else if (!dbf->diri->pkg->ipkg->broken_xattr &&
+	else if (!S_ISLNK(fi.mode) && !dbf->diri->pkg->ipkg->broken_xattr &&
 	         apk_checksum_compare(&fi.xattr_csum, &dbf->acl->xattr_csum) != 0)
 		rv = 'x';
 	else if (S_ISLNK(fi.mode) && dbf->csum.type == APK_CHECKSUM_NONE)