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Update 26704 to include a null check on the right hand side as well.

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This commit is contained in:
Shawn Routhier
2011-11-28 18:01:25 +00:00
parent 846af1cd69
commit c535de4411
2 changed files with 5 additions and 5 deletions
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8
common/dhcp-eval.5
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@@ -1,6 +1,6 @@
.\" $Id: dhcp-eval.5,v 1.31 2010/07/02 23:09:14 sar Exp $
.\" $Id: dhcp-eval.5,v 1.32 2011/11/28 18:01:25 sar Exp $
.\"
.\" Copyright (c) 2009-2010 by Internet Systems Consortium, Inc. ("ISC")
.\" Copyright (c) 2009-2011 by Internet Systems Consortium, Inc. ("ISC")
.\" Copyright (c) 2004,2007 by Internet Systems Consortium, Inc. ("ISC")
.\" Copyright (c) 1996-2003 by Internet Software Consortium
.\"
@@ -133,8 +133,8 @@ extended regex(7) matching of the values of two data expressions, returning
true if \fIdata-expression-1\fR matches against the regular expression
evaluated by \fIdata-expression-2\fR, or false if it does not match or
encounters some error. If either the left-hand side or the right-hand side
are null, the result is also false. The \fB~~\fR operator differs from the
\fB~=\fR operator in that it is case-insensitive.
are null or empty strings, the result is also false. The \fB~~\fR operator
differs from the \fB~=\fR operator in that it is case-insensitive.
.RE
.PP
.I boolean-expression-1 \fBand\fR \fIboolean-expression-2\fR

2
common/tree.c
View File

@@ -1120,7 +1120,7 @@ int evaluate_boolean_expression (result, packet, lease, client_state,
*result = 0;
memset(&re, 0, sizeof(re));
if (bleft && bright &&
(left.data != NULL) &&
(left.data != NULL) && (right.data != NULL) &&
(regcomp(&re, (char *)right.data, regflags) == 0) &&
(regexec(&re, (char *)left.data, (size_t)0, NULL, 0) == 0))
*result = 1;