expose a helper function peel_to_type().

diff --git a/connect.c b/connect.c
index 3aefd4ace590082b85bd3c4b9b41b8d1f1c72268..5ac357278464324d82ac6912c1b7ad84d42d0743 100644 (file)
--- a/connect.c
+++ b/connect.c
@@ -370,6 +370,8 @@ static int git_proxy_command_options(const char *var, const char *value)
 
                if (git_proxy_command)
                        return 0;
+               if (!value)
+                       return config_error_nonbool(var);
                /* [core]
                 * ;# matches www.kernel.org as well
                 * gitproxy = netcatter-1 for kernel.org
@@ -472,14 +474,18 @@ char *get_port(char *host)
        return NULL;
 }
 
+static struct child_process no_fork;
+
 /*
- * This returns NULL if the transport protocol does not need fork(2), or a
- * struct child_process object if it does.  Once done, finish the connection
- * with finish_connect() with the value returned from this function
- * (it is safe to call finish_connect() with NULL to support the former
- * case).
+ * This returns a dummy child_process if the transport protocol does not
+ * need fork(2), or a struct child_process object if it does.  Once done,
+ * finish the connection with finish_connect() with the value returned from
+ * this function (it is safe to call finish_connect() with NULL to support
+ * the former case).
  *
- * If it returns, the connect is successful; it just dies on errors.
+ * If it returns, the connect is successful; it just dies on errors (this
+ * will hopefully be changed in a libification effort, to return NULL when
+ * the connection failed).
  */
 struct child_process *git_connect(int fd[2], const char *url_orig,
                                  const char *prog, int flags)
@@ -577,7 +583,7 @@ struct child_process *git_connect(int fd[2], const char *url_orig,
                free(url);
                if (free_path)
                        free(path);
-               return NULL;
+               return &no_fork;
        }
 
        conn = xcalloc(1, sizeof(*conn));
@@ -635,7 +641,7 @@ struct child_process *git_connect(int fd[2], const char *url_orig,
 int finish_connect(struct child_process *conn)
 {
        int code;
-       if (!conn)
+       if (!conn || conn == &no_fork)
                return 0;
 
        code = finish_command(conn);