1 files changed, 52 insertions, 0 deletions
diff --git a/t/t5704-protocol-violations.sh b/t/t5704-protocol-violations.sh
new file mode 100755
index 0000000..11be64f
--- /dev/null
+++ b/t/t5704-protocol-violations.sh
@@ -0,0 +1,52 @@
+#!/bin/sh
+
+test_description='Test responses to violations of the network protocol. In most
+of these cases it will generally be acceptable for one side to break off
+communications if the other side says something unexpected. We are mostly
+making sure that we do not segfault or otherwise behave badly.'
+
+TEST_PASSES_SANITIZE_LEAK=true
+. ./test-lib.sh
+
+test_expect_success 'extra delim packet in v2 ls-refs args' '
+	{
+		packetize command=ls-refs &&
+		packetize "object-format=$(test_oid algo)" &&
+		printf 0001 &&
+		# protocol expects 0000 flush here
+		printf 0001
+	} >input &&
+	test_must_fail env GIT_PROTOCOL=version=2 \
+		git upload-pack . <input 2>err &&
+	test_grep "expected flush after ls-refs arguments" err
+'
+
+test_expect_success 'extra delim packet in v2 fetch args' '
+	{
+		packetize command=fetch &&
+		packetize "object-format=$(test_oid algo)" &&
+		printf 0001 &&
+		# protocol expects 0000 flush here
+		printf 0001
+	} >input &&
+	test_must_fail env GIT_PROTOCOL=version=2 \
+		git upload-pack . <input 2>err &&
+	test_grep "expected flush after fetch arguments" err
+'
+
+test_expect_success 'bogus symref in v0 capabilities' '
+	test_commit foo &&
+	oid=$(git rev-parse HEAD) &&
+	dst=refs/heads/foo &&
+	{
+		printf "%s HEAD\0symref object-format=%s symref=HEAD:%s\n" \
+			"$oid" "$GIT_DEFAULT_HASH" "$dst" |
+			test-tool pkt-line pack-raw-stdin &&
+		printf "0000"
+	} >input &&
+	git ls-remote --symref --upload-pack="cat input; read junk;:" . >actual &&
+	printf "ref: %s\tHEAD\n%s\tHEAD\n" "$dst" "$oid" >expect &&
+	test_cmp expect actual
+'
+
+test_done