5 static enum protocol_version
parse_protocol_version(const char *value
)
7 if (!strcmp(value
, "0"))
9 else if (!strcmp(value
, "1"))
11 else if (!strcmp(value
, "2"))
14 return protocol_unknown_version
;
17 enum protocol_version
get_protocol_version_config(void)
20 if (!git_config_get_string_const("protocol.version", &value
)) {
21 enum protocol_version version
= parse_protocol_version(value
);
23 if (version
== protocol_unknown_version
)
24 die("unknown value for config 'protocol.version': %s",
33 enum protocol_version
determine_protocol_version_server(void)
35 const char *git_protocol
= getenv(GIT_PROTOCOL_ENVIRONMENT
);
36 enum protocol_version version
= protocol_v0
;
39 * Determine which protocol version the client has requested. Since
40 * multiple 'version' keys can be sent by the client, indicating that
41 * the client is okay to speak any of them, select the greatest version
42 * that the client has requested. This is due to the assumption that
43 * the most recent protocol version will be the most state-of-the-art.
46 struct string_list list
= STRING_LIST_INIT_DUP
;
47 const struct string_list_item
*item
;
48 string_list_split(&list
, git_protocol
, ':', -1);
50 for_each_string_list_item(item
, &list
) {
52 enum protocol_version v
;
54 if (skip_prefix(item
->string
, "version=", &value
)) {
55 v
= parse_protocol_version(value
);
61 string_list_clear(&list
, 0);
67 enum protocol_version
determine_protocol_version_client(const char *server_response
)
69 enum protocol_version version
= protocol_v0
;
71 if (skip_prefix(server_response
, "version ", &server_response
)) {
72 version
= parse_protocol_version(server_response
);
74 if (version
== protocol_unknown_version
)
75 die("server is speaking an unknown protocol");
76 if (version
== protocol_v0
)
77 die("protocol error: server explicitly said version 0");