1 file changed, 30 insertions, 12 deletions
diff --git a/source/ui-shared.c b/source/ui-shared.c
index e346cbd..c3eee0b 100644
--- a/source/ui-shared.c
+++ b/source/ui-shared.c
@@ -1522,24 +1522,21 @@ static void print_docstart(void)
 		html_include(ctx.cfg.header);
 }
 
-void cgit_print_error_page(int code, const char *msg, const char *fmt, ...)
+/*
+ * Start the page an error is printed into, and answer whether it started.
+ * Once the status line is out the error can only join the body under way,
+ * and the page that hit it carries on to its own end.
+ */
+static int start_error_page(int code, const char *msg)
 {
-	va_list ap;
-
 	// An error page describes a condition that may not outlast the slot
 	// holding it. A request naming a commit not yet pushed would cache its
 	// 404 under the never-expiring static ttl and keep serving it after
 	// the push, so the error is rendered straight to the visitor instead.
 	html_flush();
 	cache_abandon_fill();
-	va_start(ap, fmt);
-	// Once the status line is out the error can only join the body under
-	// way, and the page that hit it carries on to its own end.
-	if (ctx.page.headers_sent) {
-		vprint_error(fmt, ap);
-		va_end(ap);
-		return;
-	}
+	if (ctx.page.headers_sent)
+		return 0;
 	ctx.page.status = code;
 	ctx.page.statusmsg = msg;
 	// The error stands where a page would name itself, ahead of the
@@ -1554,9 +1551,30 @@ void cgit_print_error_page(int code, const char *msg, const char *fmt, ...)
 	ctx.page.charset = PAGE_ENCODING;
 	ctx.page.filename = NULL;
 	cgit_print_layout_start();
+	return 1;
+}
+
+void cgit_print_error_page(int code, const char *msg, const char *fmt, ...)
+{
+	int started = start_error_page(code, msg);
+	va_list ap;
+
+	va_start(ap, fmt);
 	vprint_error(fmt, ap);
 	va_end(ap);
-	cgit_print_layout_end();
+	if (started)
+		cgit_print_layout_end();
+}
+
+void cgit_print_submodule_page(char *path, const char *rev)
+{
+	int started = start_error_page(404, "Not Found");
+
+	html("<div class='error'>This path is a submodule: ");
+	cgit_submodule_link("ls-mod", path, rev);
+	html("</div>\n");
+	if (started)
+		cgit_print_layout_end();
 }
 
 void cgit_print_blob_too_large(size_t size)