Merged revisions 152059 via svnmerge from

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

........
r152059 | seanbright | 2008-10-26 16:23:36 -0400 (Sun, 26 Oct 2008) | 7 lines

Since passing \0 as the second argument to strchr is valid (and will
match the trailing \0 of a string) we need to check that first, otherwise
we end up with incorrect results.  Fix suggested by reporter.

(closes issue #13787)
Reported by: meitinger

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git-svn-id: https://origsvn.digium.com/svn/asterisk/trunk@152060 65c4cc65-6c06-0410-ace0-fbb531ad65f3

funcs/func_strings.c

@@ -773,7 +773,10 @@ static int keypadhash(struct ast_channel *chan, const char *cmd, char *data, cha
 	char *bufptr, *dataptr;
 
 	for (bufptr = buf, dataptr = data; bufptr < buf + buflen - 1; dataptr++) {
-		if (*dataptr == '1') {
+		if (*dataptr == '\0') {
+			*bufptr++ = '\0';
+			break;
+		} else if (*dataptr == '1') {
 			*bufptr++ = '1';
 		} else if (strchr("AaBbCc2", *dataptr)) {
 			*bufptr++ = '2';
@@ -793,9 +796,6 @@ static int keypadhash(struct ast_channel *chan, const char *cmd, char *data, cha
 			*bufptr++ = '9';
 		} else if (*dataptr == '0') {
 			*bufptr++ = '0';
-		} else if (*dataptr == '\0') {
-			*bufptr++ = '\0';
-			break;
 		}
 	}
 	buf[buflen - 1] = '\0';