Add a function, server_supports_hash, to see if the remote server
supports a particular hash algorithm when speaking protocol v1.
Signed-off-by: brian m. carlson <sandals@xxxxxxxxxxxxxxxxxxxx>
---
connect.c | 22 ++++++++++++++++++++++
connect.h | 1 +
2 files changed, 23 insertions(+)
diff --git a/connect.c b/connect.c
index 2cded78b0a..a52b038865 100644
--- a/connect.c
+++ b/connect.c
@@ -527,6 +527,28 @@ static const char *parse_feature_value(const char *feature_list, const char *fea
return NULL;
}
+int server_supports_hash(const char *desired, int *feature_supported)
+{
+ int offset = 0;
+ int len;
+ const char *hash;
+
+ hash = next_server_feature_value("object-format", &len, &offset);
+ if (feature_supported)
+ *feature_supported = !!hash;
+ if (!hash) {
+ hash = hash_algos[GIT_HASH_SHA1].name;
+ len = strlen(hash);
+ }
+ while (hash) {
+ if (!xstrncmpz(desired, hash, len))
+ return 1;
+
+ hash = next_server_feature_value("object-format", &len, &offset);
+ }
+ return 0;
+}
+
int parse_feature_request(const char *feature_list, const char *feature)
{
return !!parse_feature_value(feature_list, feature, NULL, NULL);
diff --git a/connect.h b/connect.h
index 88702fdd17..c53976f7ec 100644
--- a/connect.h
+++ b/connect.h
@@ -18,6 +18,7 @@ int url_is_local_not_ssh(const char *url);
struct packet_reader;
enum protocol_version discover_version(struct packet_reader *reader);
+int server_supports_hash(const char *desired, int *feature_supported);
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,
