Do not treat PATH_INFO as a complete path if it doesn't contain

a manpath.  For example, this makes http://man.openbsd.org/mandoc
work as expected.
Bug reported by tb@, reminded by Svyatoslav Mishyn.

diff --git a/usr.bin/mandoc/cgi.c b/usr.bin/mandoc/cgi.c
index 1a16b60..4b9e8da 100644 (file)
--- a/usr.bin/mandoc/cgi.c
+++ b/usr.bin/mandoc/cgi.c
@@ -1,4 +1,4 @@
-/*     $OpenBSD: cgi.c,v 1.71 2016/05/28 13:40:44 schwarze Exp $ */
+/*     $OpenBSD: cgi.c,v 1.72 2016/07/09 19:44:52 schwarze Exp $ */
 /*
  * Copyright (c) 2011, 2012 Kristaps Dzonsons <kristaps@bsd.lv>
  * Copyright (c) 2014, 2015, 2016 Ingo Schwarze <schwarze@usta.de>
@@ -1024,7 +1024,7 @@ main(void)
 
        if (*path != '\0') {
                parse_path_info(&req, path);
-               if (access(path, F_OK) == -1)
+               if (req.q.manpath == NULL || access(path, F_OK) == -1)
                        path = "";
        } else if ((querystring = getenv("QUERY_STRING")) != NULL)
                parse_query_string(&req, querystring);