File libgit2-empty-lines-as-errors.patch of Package libgit2.4084

commit 84d30d569ada986f3eef527cbdb932643c2dd037
Author: Patrick Steinhardt <ps@pks.im>
Date:   Tue Nov 15 11:44:51 2016 +0100

#
#The following patch is based on the upstream commit above but modified to apply to our SLE version 0.24.1
#
diff --git a/src/transports/smart_pkt.c b/src/transports/smart_pkt.c
index 6fe53b9..e05196c 100644
--- a/src/transports/smart_pkt.c
+++ b/src/transports/smart_pkt.c
@@ -437,12 +437,13 @@ int git_pkt_parse_line(
 
 	line += PKT_LEN_SIZE;
 	/*
-	 * TODO: How do we deal with empty lines? Try again? with the next
-	 * line?
+	 * The Git protocol does not specify empty lines as part
+	 * of the protocol. Not knowing what to do with an empty
+	 * line, we should return an error upon hitting one.
 	 */
 	if (len == PKT_LEN_SIZE) {
-		*out = line;
-		return 0;
+		giterr_set_str(GITERR_NET, "Invalid empty packet");
+		return GIT_ERROR;
 	}
 
 	if (len == 0) { /* Flush pkt */
#diff --git a/src/transports/smart_protocol.c b/src/transports/smart_protocol.c
#index 3448fa7..02e1ecf 100644
#--- a/src/transports/smart_protocol.c
#+++ b/src/transports/smart_protocol.c
#@@ -759,14 +759,6 @@ static int add_push_report_sideband_pkt(git_push *push, git_pkt_data *data_pkt,
# 		line_len -= (line_end - line);
# 		line = line_end;
# 
#-		/* When a valid packet with no content has been
#-		 * read, git_pkt_parse_line does not report an
#-		 * error, but the pkt pointer has not been set.
#-		 * Handle this by skipping over empty packets.
#-		 */
#-		if (pkt == NULL)
#-			continue;
#-
# 		error = add_push_report_pkt(push, pkt);
# 
# 		git_pkt_free(pkt);
#@@ -821,9 +813,6 @@ static int parse_report(transport_smart *transport, git_push *push)
# 
# 		error = 0;
# 
#-		if (pkt == NULL)
#-			continue;
#-
# 		switch (pkt->type) {
# 			case GIT_PKT_DATA:
# 				/* This is a sideband packet which contains other packets */