Merged revisions 241765 via svnmerge from

https://origsvn.digium.com/svn/asterisk/branches/1.4

........
  r241765 | tilghman | 2010-01-20 23:53:17 -0600 (Wed, 20 Jan 2010) | 2 lines
  
  Guard against division by zero.
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git-svn-id: https://origsvn.digium.com/svn/asterisk/trunk@241766 65c4cc65-6c06-0410-ace0-fbb531ad65f3

funcs/func_math.c

@@ -289,7 +289,11 @@ static int math(struct ast_channel *chan, const char *cmd, char *parse,
 			int inum1 = fnum1;
 			int inum2 = fnum2;
 
-			ftmp = (inum1 % inum2);
+			if (inum2 == 0) {
+				ftmp = 0;
+			} else {
+				ftmp = (inum1 % inum2);
+			}
 
 			break;
 		}