From 70c6a6f624ec07be37ce90424d0765e3c78d1bf5 Mon Sep 17 00:00:00 2001
From: Bob Weinand <bobwei9@hotmail.com>
Date: Sun, 26 Jul 2015 22:57:12 +0200
Subject: Fix infinite lexer loop for :\ sequence in phpdbg

---
 sapi/phpdbg/phpdbg_lexer.l | 24 +++++++++++++-----------
 1 file changed, 13 insertions(+), 11 deletions(-)

(limited to 'sapi/phpdbg/phpdbg_lexer.l')

diff --git a/sapi/phpdbg/phpdbg_lexer.l b/sapi/phpdbg/phpdbg_lexer.l
index 7fca70f57a..35ca744400 100644
--- a/sapi/phpdbg/phpdbg_lexer.l
+++ b/sapi/phpdbg/phpdbg_lexer.l
@@ -60,6 +60,7 @@ T_RUN_SHORT "r"
 WS          [ \r\n\t]+
 DIGITS      [-]?[0-9\.]+
 ID          [^ \r\n\t:#\000]+
+GENERIC_ID  ([^ \r\n\t:#\000]|":\\")+
 ADDR        [0][x][a-fA-F0-9]+
 OPCODE      (ZEND_|zend_)([A-Za-z])+
 INPUT       [^\n\000]+
@@ -70,7 +71,7 @@ INPUT       [^\n\000]+
 	return 0;
 }
 
-<PRE_RAW, NORMAL>[-][r]{WS}?{DIGITS} {
+<PRE_RAW, NORMAL>"-r"{WS}?{DIGITS} {
 	char *text = yytext + 2;
 	while (*++text < '0');
 	yylval->num = atoi(text);
@@ -83,22 +84,23 @@ INPUT       [^\n\000]+
 	return T_IF;
 }
 
-<NORMAL>{ID}[:]{1}[//]{2} {
-	phpdbg_init_param(yylval, STR_PARAM);
-	yylval->str = zend_strndup(yytext, yyleng);
-	yylval->len = yyleng;
-	return T_PROTO;
-}
-<NORMAL>[#]{1} {
+<NORMAL>"#" {
 	return T_POUND;
 }
-<NORMAL>[:]{2} {
+<NORMAL>"::" {
 	return T_DCOLON;
 }
-<NORMAL>[:]{1}/[^\\] {
+<NORMAL>":"/[^\\] {
 	return T_COLON;
 }
 
+<NORMAL>{ID}"://" {
+	phpdbg_init_param(yylval, STR_PARAM);
+	yylval->str = zend_strndup(yytext, yyleng);
+	yylval->len = yyleng;
+	return T_PROTO;
+}
+
 <NORMAL>({T_YES}|{T_ON}|{T_ENABLED}|{T_TRUE}){WS} {
 	phpdbg_init_param(yylval, NUMERIC_PARAM);
 	yylval->num = 1;
@@ -130,7 +132,7 @@ INPUT       [^\n\000]+
 	return T_OPCODE;
 }
 
-<NORMAL>{ID} {
+<NORMAL>{GENERIC_ID} {
 	phpdbg_init_param(yylval, STR_PARAM);
 	yylval->str = zend_strndup(yytext, yyleng);
 	yylval->len = yyleng;
-- 
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