Merge branch 'PHP-5.3' into PHP-5.4

* PHP-5.3:
  Fix bug #64458 (dns_get_record result with string of length -1)

Author: smalyshev

NEWS

@@ -4,6 +4,7 @@ PHP                                                                        NEWS
 - Core:
   . Fixed bug #64578 (debug_backtrace in set_error_handler corrupts zend heap: 
     segfault). (Laruence)
+  . Fixed bug #64458 (dns_get_record result with string of length -1). (Stas)
   . Fixed bug #64433 (follow_location parameter of context is ignored for most 
     response codes). (Sergey Akbarov)
   . Fixed bugs #47675 and #64577 (fd leak on Solaris)

ext/standard/dns.c

@@ -524,7 +524,7 @@ static u_char *php_parserr(u_char *cp, querybuf *answer, int type_to_fetch, int
 				tp[dlen] = '\0';
 				cp += dlen;
 
-				add_assoc_stringl(*subarray, "txt", tp, dlen - 1, 0);
+				add_assoc_stringl(*subarray, "txt", tp, (dlen>0)?dlen - 1:0, 0);
 				add_assoc_zval(*subarray, "entries", entries);
 			}
 			break;