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authorSebastian Benoit <benno@cvs.openbsd.org>2016-06-21 21:35:26 +0000
committerSebastian Benoit <benno@cvs.openbsd.org>2016-06-21 21:35:26 +0000
commitf2ada2db1464df13335d236529c834c378ced993 (patch)
treea15cd06b17ca32de9b75238620437773f018ecdf /usr.sbin/smtpd
parent05fc6735d59f44db060a9d3a428944db3e862ebe (diff)
do not allow whitespace in macro names, i.e. "this is" = "a variable".
change this in all config parsers in our tree that support macros. problem reported by sven falempin. feedback from henning@, stsp@, deraadt@ ok florian@ mikeb@
Diffstat (limited to 'usr.sbin/smtpd')
-rw-r--r--usr.sbin/smtpd/parse.y10
1 files changed, 9 insertions, 1 deletions
diff --git a/usr.sbin/smtpd/parse.y b/usr.sbin/smtpd/parse.y
index ab0271920ec..d4c0fcbc1b7 100644
--- a/usr.sbin/smtpd/parse.y
+++ b/usr.sbin/smtpd/parse.y
@@ -1,4 +1,4 @@
-/* $OpenBSD: parse.y,v 1.184 2016/04/21 14:27:41 jsing Exp $ */
+/* $OpenBSD: parse.y,v 1.185 2016/06/21 21:35:25 benno Exp $ */
/*
* Copyright (c) 2008 Gilles Chehade <gilles@poolp.org>
@@ -213,6 +213,14 @@ include : INCLUDE STRING {
;
varset : STRING '=' STRING {
+ char *s = $1;
+ while (*s++) {
+ if (isspace((unsigned char)*s)) {
+ yyerror("macro name cannot contain "
+ "whitespace");
+ YYERROR;
+ }
+ }
if (symset($1, $3, 0) == -1)
fatal("cannot store variable");
free($1);