[PATCH 1/6 (v2)] get_remote_heads(): refactor code to read "server capabilities"

[Junio C Hamano <gitster@pobox.com>]

This just moves the code to read the server capability list that is hidden
after "40-byte hex object name, SP, refname, NUL" on the information the
uploading end initially sends.

Signed-off-by: Junio C Hamano <gitster@pobox.com>
---
 connect.c |   21 +++++++++++++++++----
 1 files changed, 17 insertions(+), 4 deletions(-)

diff --git a/connect.c b/connect.c
index 584e04c..932c503 100644
--- a/connect.c
+++ b/connect.c
@@ -49,6 +49,21 @@ static void add_extra_have(struct extra_have_objects *extra, unsigned char *sha1
 }
 
 /*
+ * "line" points at the byte just after "40-byte hex, SP, refname,
+ * NUL".  "len" is the remaining number of bytes.  The caller knows
+ * that the original packet contains more information than that.
+ */
+static void read_extra_info(char *line, int len)
+{
+	/*
+	 * The first such "extra" piece of information is the list of
+	 * server capabilities.
+	 */
+	free(server_capabilities);
+	server_capabilities = xstrdup(line);
+}
+
+/*
  * Read all the refs from the other end
  */
 struct ref **get_remote_heads(int in, struct ref **list,
@@ -78,10 +93,8 @@ struct ref **get_remote_heads(int in, struct ref **list,
 		name = buffer + 41;
 
 		name_len = strlen(name);
-		if (len != name_len + 41) {
-			free(server_capabilities);
-			server_capabilities = xstrdup(name + name_len + 1);
-		}
+		if (len != name_len + 41)
+			read_extra_info(name + name_len + 1, len - (name_len + 41));
 
 		if (extra_have &&
 		    name_len == 5 && !memcmp(".have", name, 5)) {
-- 
1.6.0.4.864.g0f47a