refdb: check the version of the backend we're about to set

tiennou · tiennou · commit c2cf9844a2b9 · 2019-09-05T10:26:41.000+02:00
diff --git a/src/refdb.c b/src/refdb.c
@@ -66,6 +66,8 @@ static void refdb_free_backend(git_refdb *db)
 
 int git_refdb_set_backend(git_refdb *db, git_refdb_backend *backend)
 {
+	GIT_ERROR_CHECK_VERSION(backend, GIT_REFDB_BACKEND_VERSION, "git_refdb_backend");
+
 	refdb_free_backend(db);
 	db->backend = backend;
 

Original file line number	Diff line number	Diff line change
`@@ -66,6 +66,8 @@ static void refdb_free_backend(git_refdb *db)`
`66`	`66`
`67`	`67`	`int git_refdb_set_backend(git_refdb db, git_refdb_backend backend)`
`68`	`68`	`{`
	`69`	`+ GIT_ERROR_CHECK_VERSION(backend, GIT_REFDB_BACKEND_VERSION, "git_refdb_backend");`
	`70`	`+`
`69`	`71`	`refdb_free_backend(db);`
`70`	`72`	`db->backend = backend;`
`71`	`73`