group-parse: Emit useful error messages when parsing fails.

Previously it would overwrite the useful message from lower-level
parsers with its own bland and unhelpful error.

diff --git a/group-parse.c b/group-parse.c
index f2c47f4..7711952 100644 (file)
--- a/group-parse.c
+++ b/group-parse.c
@@ -53,7 +53,7 @@ group *group_parse(qd_parse *qd)
     case 0: {
       dh_param dp;
       qd_delim(qd, '{');
-      if (dh_parse(qd, &dp)) break;
+      if (dh_parse(qd, &dp)) goto ouch;
       qd_delim(qd, '}');
       g = group_prime(&dp);
       dh_paramfree(&dp);
@@ -61,12 +61,13 @@ group *group_parse(qd_parse *qd)
     case 1: {
       ec_info ei;
       qd_delim(qd, '{');
-      if (ec_infoparse(qd, &ei)) break;
+      if (ec_infoparse(qd, &ei)) goto ouch;
       qd_delim(qd, '}');
       g = group_ec(&ei);
     } break;
   }
   if (!g) qd->e = "bad group parameters";
+ouch:
   return (g);
 }