[PATCH/RFC 1/6] tag: read signature

["Marc-André Lureau" <marcandre.lureau@gmail.com>]

Signed-off-by: Marc-Andre Lureau <marcandre.lureau@gmail.com>
---
 tag.c |   11 ++++++++---
 tag.h |    2 +-
 2 files changed, 9 insertions(+), 4 deletions(-)

diff --git a/tag.c b/tag.c
index 4470d2b..42e5b22 100644
--- a/tag.c
+++ b/tag.c
@@ -38,9 +38,9 @@ struct tag *lookup_tag(const unsigned char *sha1)

 int parse_tag_buffer(struct tag *item, void *data, unsigned long size)
 {
-	int typelen, taglen;
+	int typelen, taglen, siglen;
 	unsigned char sha1[20];
-	const char *type_line, *tag_line, *sig_line;
+	const char *type_line, *tag_line, *sig_line, *msg_line;
 	char type[20];
 	const char *start = data;

@@ -62,9 +62,12 @@ int parse_tag_buffer(struct tag *item, void *data,
unsigned long size)
 		return -1;

 	sig_line = memchr(tag_line, '\n', size - (tag_line - start));
+	if (!sig_line || memcmp("tagger ", ++sig_line, 7))
+		return -1;
+
+	msg_line = memchr(sig_line, '\n', size - (sig_line - start));
 	if (!sig_line)
 		return -1;
-	sig_line++;

 	typelen = tag_line - type_line - strlen("type \n");
 	if (typelen >= 20)
@@ -73,6 +76,8 @@ int parse_tag_buffer(struct tag *item, void *data,
unsigned long size)
 	type[typelen] = '\0';
 	taglen = sig_line - tag_line - strlen("tag \n");
 	item->tag = xmemdupz(tag_line + 4, taglen);
+	siglen = msg_line - sig_line - strlen("tagger \n");
+	item->signature = xmemdupz(sig_line + 7, siglen);

 	if (!strcmp(type, blob_type)) {
 		item->tagged = &lookup_blob(sha1)->object;
diff --git a/tag.h b/tag.h
index 7a0cb00..bc2cab3 100644
--- a/tag.h
+++ b/tag.h
@@ -9,7 +9,7 @@ struct tag {
 	struct object object;
 	struct object *tagged;
 	char *tag;
-	char *signature; /* not actually implemented */
+	char *signature;
 };

 extern struct tag *lookup_tag(const unsigned char *sha1);
-- 
1.6.2.rc1.28.g05ef4.dirty