better yyerror messages. "syntax error" is generally not very helpful.

OK denis@

diff --git a/usr.sbin/bgpd/parse.y b/usr.sbin/bgpd/parse.y
index 66847b8..66d5a3a 100644 (file)
--- a/usr.sbin/bgpd/parse.y
+++ b/usr.sbin/bgpd/parse.y
@@ -1,4 +1,4 @@
-/*     $OpenBSD: parse.y,v 1.357 2018/09/21 05:13:35 claudio Exp $ */
+/*     $OpenBSD: parse.y,v 1.358 2018/09/21 08:15:33 claudio Exp $ */
 
 /*
  * Copyright (c) 2002, 2003, 2004 Henning Brauer <henning@openbsd.org>
@@ -1405,7 +1405,7 @@ peeropts  : REMOTEAS as4number    {
                                curpeer->conf.export_type =
                                    EXPORT_DEFAULT_ROUTE;
                        } else {
-                               yyerror("syntax error");
+                               yyerror("syntax error: unknown '%s'", $2);
                                free($2);
                                YYERROR;
                        }
@@ -2194,7 +2194,7 @@ filter_elm        : filter_prefix_h       {
                                YYERROR;
                        }
                        if (fmopts.m.prefixset.name[0] != '\0') {
-                               yyerror("prefix-set filters already specified");
+                               yyerror("prefix-set filter already specified");
                                free($2);
                                YYERROR;
                        }
@@ -3023,7 +3023,7 @@ top:
                                *p = '\0';
                                break;
                        } else if (c == '\0') {
-                               yyerror("syntax error");
+                               yyerror("syntax error: unterminated quote");
                                return (findeol());
                        }
                        if (p + 1 >= buf + sizeof(buf) - 1) {