Add version fields and init macros for public input structs.

1 files changed, 9 insertions, 0 deletions

diff --git a/include/git2/transport.h b/include/git2/transport.h
index 61726922f..84d71c612 100644
--- a/include/git2/transport.h
+++ b/include/git2/transport.h
@@ -31,11 +31,15 @@ typedef enum {
 
 /* The base structure for all credential types */
 typedef struct git_cred {
+	unsigned int version;       /* This should update if subtypes are extended */
 	git_credtype_t credtype;
 	void (*free)(
 		struct git_cred *cred);
 } git_cred;
 
+#define GIT_CRED_VERSION 1
+#define GIT_CRED_INIT {GIT_CRED_VERSION, 0}
+
 /* A plaintext username and password */
 typedef struct git_cred_userpass_plaintext {
 	git_cred parent;
@@ -82,6 +86,7 @@ typedef enum {
 typedef void (*git_transport_message_cb)(const char *str, int len, void *data);
 
 typedef struct git_transport {
+	unsigned int version;
 	/* Set progress and error callbacks */
 	int (*set_callbacks)(struct git_transport *transport,
 		git_transport_message_cb progress_cb,
@@ -140,6 +145,9 @@ typedef struct git_transport {
 	void (*free)(struct git_transport *transport);
 } git_transport;
 
+#define GIT_TRANSPORT_VERSION 1
+#define GIT_TRANSPORT_INIT {GIT_TRANSPORT_VERSION, 0}
+
 /**
  * Function to use to create a transport from a URL. The transport database
  * is scanned to find a transport that implements the scheme of the URI (i.e.
@@ -284,6 +292,7 @@ typedef int (*git_smart_subtransport_cb)(
 typedef struct git_smart_subtransport_definition {
 	/* The function to use to create the git_smart_subtransport */
 	git_smart_subtransport_cb callback;
+
 	/* True if the protocol is stateless; false otherwise. For example,
 	 * http:// is stateless, but git:// is not. */
 	unsigned rpc : 1;