2 files changed, 51 insertions, 0 deletions
diff --git a/include/git2/cred_helpers.h b/include/git2/cred_helpers.h
new file mode 100644
index 000000000..7c213c8dd
--- /dev/null
+++ b/include/git2/cred_helpers.h
@@ -0,0 +1,50 @@
+/*
+ * Copyright (C) the libgit2 contributors. All rights reserved.
+ *
+ * This file is part of libgit2, distributed under the GNU GPL v2 with
+ * a Linking Exception. For full terms see the included COPYING file.
+ */
+#ifndef INCLUDE_git_cred_helpers_h__
+#define INCLUDE_git_cred_helpers_h__
+
+#include "git2/transport.h"
+
+/**
+ * @file git2/cred_helpers.h
+ * @brief Utility functions for credential management
+ * @defgroup git_cred_helpers credential management helpers
+ * @ingroup Git
+ * @{
+ */
+GIT_BEGIN_DECL
+
+/**
+ * Payload for git_cred_stock_userpass_plaintext.
+ */
+typedef struct git_cred_userpass_payload {
+	char *username;
+	char *password;
+} git_cred_userpass_payload;
+
+
+/**
+ * Stock callback usable as a git_cred_acquire_cb.  This calls
+ * git_cred_userpass_plaintext_new unless the protocol has not specified
+ * GIT_CREDTYPE_USERPASS_PLAINTEXT as an allowed type.
+ *
+ * @param cred The newly created credential object.
+ * @param url The resource for which we are demanding a credential.
+ * @param allowed_types A bitmask stating which cred types are OK to return.
+ * @param payload The payload provided when specifying this callback.  (This is
+ *        interpreted as a `git_cred_userpass_payload*`.)
+ */
+GIT_EXTERN(int) git_cred_userpass(
+		git_cred **cred,
+		const char *url,
+		unsigned int allowed_types,
+		void *payload);
+
+
+/** @} */
+GIT_END_DECL
+#endif
diff --git a/include/git2/transport.h b/include/git2/transport.h
index fba5fb920..1aa87cabe 100644
--- a/include/git2/transport.h
+++ b/include/git2/transport.h
@@ -61,6 +61,7 @@ GIT_EXTERN(int) git_cred_userpass_plaintext_new(
  * @param cred The newly created credential object.
  * @param url The resource for which we are demanding a credential.
  * @param allowed_types A bitmask stating which cred types are OK to return.
+ * @param payload The payload provided when specifying this callback.
  */
 typedef int (*git_cred_acquire_cb)(
 	git_cred **cred,