[v3,07/44] connect: add function to fetch value of a v2 server capability

Commit Message

brian m. carlson June 19, 2020, 5:55 p.m. UTC

So far in protocol v2, all of our server capabilities that have values
have not had values that we've been interested in parsing.  For example,
we receive but ignore the agent value.

However, in a future commit, we're going to want to parse out the value
of a server capability.  To make this easy, add a function,
server_feature_v2, that can fetch the value provided as part of the
server capability.

Signed-off-by: brian m. carlson <[e-mail]>
---
 connect.c | 15 +++++++++++++++
 connect.h |  1 +
 2 files changed, 16 insertions(+)

Patch

diff --git a/connect.c b/connect.c
index d30c637ab3..2cded78b0a 100644
--- a/connect.c
+++ b/connect.c
@@ -84,6 +84,21 @@  int server_supports_v2(const char *c, int die_on_error)
 	return 0;
 }
 
+int server_feature_v2(const char *c, const char **v)
+{
+	int i;
+
+	for (i = 0; i < server_capabilities_v2.argc; i++) {
+		const char *out;
+		if (skip_prefix(server_capabilities_v2.argv[i], c, &out) &&
+		    (*out == '=')) {
+			*v = out + 1;
+			return 1;
+		}
+	}
+	return 0;
+}
+
 int server_supports_feature(const char *c, const char *feature,
 			    int die_on_error)
 {
diff --git a/connect.h b/connect.h
index 235bc66254..88702fdd17 100644
--- a/connect.h
+++ b/connect.h
@@ -19,6 +19,7 @@  struct packet_reader;
 enum protocol_version discover_version(struct packet_reader *reader);
 
 int server_supports_v2(const char *c, int die_on_error);
+int server_feature_v2(const char *c, const char **v);
 int server_supports_feature(const char *c, const char *feature,
 			    int die_on_error);