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#ifndef PROTOCOL_H
#define PROTOCOL_H
/*
* Intensive research over the course of many years has shown that
* port 9418 is totally unused by anything else. Or
*
* Your search - "port 9418" - did not match any documents.
*
* as www.google.com puts it.
*
* This port has been properly assigned for git use by IANA:
* git (Assigned-9418) [I06-050728-0001].
*
* git 9418/tcp git pack transfer service
* git 9418/udp git pack transfer service
*
* with Linus Torvalds <torvalds@osdl.org> as the point of
* contact. September 2005.
*
* See https://www.iana.org/assignments/port-numbers
*/
#define DEFAULT_GIT_PORT 9418
enum protocol_version {
protocol_unknown_version = -1,
protocol_v0 = 0,
protocol_v1 = 1,
protocol_v2 = 2,
};
/*
* Used by a client to determine which protocol version to request be used when
* communicating with a server, reflecting the configured value of the
* 'protocol.version' config. If unconfigured, a value of 'protocol_v0' is
* returned.
*/
enum protocol_version get_protocol_version_config(void);
/*
* Used by a server to determine which protocol version should be used based on
* a client's request, communicated via the 'GIT_PROTOCOL' environment variable
* by setting appropriate values for the key 'version'. If a client doesn't
* request a particular protocol version, a default of 'protocol_v0' will be
* used.
*/
enum protocol_version determine_protocol_version_server(void);
/*
* Used by a client to determine which protocol version the server is speaking
* based on the server's initial response.
*/
enum protocol_version determine_protocol_version_client(const char *server_response);
#endif /* PROTOCOL_H */
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