1 files changed, 38 insertions, 10 deletions

diff --git a/src/ustar.c b/src/ustar.c
index 9d95052..47e0dfa 100644
--- a/src/ustar.c
+++ b/src/ustar.c
@@ -53,6 +53,12 @@ struct opkg_opk_ustar {
 	char                  read_record[OPKG_OPK_USTAR_RECORD_SIZE];
 };
 
+struct opkg_opk_ustar_seek_name {
+	const char                      *name;
+	int                              found;
+	struct opkg_opk_ustar_seek_name *next;
+};
+
 struct opkg_opk_ustar *
 opkg_opk_ustar_init(struct opkg_opk_gzip *gzip)
 {
@@ -226,8 +232,8 @@ opkg_opk_ustar_list(struct opkg_opk_ustar *ustar,
 }
 
 int
-opkg_opk_ustar_add_seek_name(struct opkg_opk_ustar_seek_name **head,
-		struct opkg_opk_ustar_seek_name **tail, const char *name)
+opkg_opk_ustar_add_seek_name(struct opkg_opk_ustar_seek_name **names,
+		const char *name)
 {
 	struct opkg_opk_ustar_seek_name *seek_name;
 
@@ -237,18 +243,24 @@ opkg_opk_ustar_add_seek_name(struct opkg_opk_ustar_seek_name **head,
 	}
 	seek_name->name  = name;
 	seek_name->found = 0;
-	seek_name->next  = NULL;
-
-	if (*head == NULL) {
-		*head = seek_name;
-	} else {
-		(*tail)->next = seek_name;
-	}
-	*tail = seek_name;
+	seek_name->next  = *names;
 
+	*names = seek_name;
 	return OPKG_OPK_OK;
 }
 
+void
+opkg_opk_ustar_free_seek_names(struct opkg_opk_ustar_seek_name *names)
+{
+	struct opkg_opk_ustar_seek_name *name;
+
+	while (names != NULL) {
+		name  = names;
+		names = names->next;
+		free(name);
+	}
+}
+
 int
 opkg_opk_ustar_seek(struct opkg_opk_ustar *ustar,
 		struct opkg_opk_ustar_seek_name *names)
@@ -321,6 +333,22 @@ opkg_opk_ustar_seek(struct opkg_opk_ustar *ustar,
 }
 
 int
+opkg_opk_ustar_seek_one(struct opkg_opk_ustar *ustar, const char *name)
+{
+	struct opkg_opk_ustar_seek_name  seek_name;
+
+	seek_name.name  = name;
+	seek_name.found = 0;
+	seek_name.next  = NULL;
+
+	if (opkg_opk_ustar_seek(ustar, &seek_name) == OPKG_OPK_END) {
+		return OPKG_OPK_OK;
+	} else {
+		return OPKG_OPK_ERROR;
+	}
+}
+
+int
 opkg_opk_ustar_read(struct opkg_opk_ustar *ustar, char **buffer, size_t *size)
 {
 	if (ustar->data_size_remaining == 0) {