From c43b08723006b3696bfacd88c5837816a07ee9b5 Mon Sep 17 00:00:00 2001 From: pfg Date: Thu, 28 Nov 2013 16:36:03 +0000 Subject: libcpp: fix an underflow. Obtained from: OpenBSD (Rev 1.2) MFC after: 2 weeks --- contrib/gcclibs/libcpp/charset.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'contrib/gcclibs') diff --git a/contrib/gcclibs/libcpp/charset.c b/contrib/gcclibs/libcpp/charset.c index 78c8981..6361f8c 100644 --- a/contrib/gcclibs/libcpp/charset.c +++ b/contrib/gcclibs/libcpp/charset.c @@ -1628,7 +1628,7 @@ _cpp_convert_input (cpp_reader *pfile, const char *input_charset, terminate with another \r, not an \n, so that we do not mistake the \r\n sequence for a single DOS line ending and erroneously issue the "No newline at end of file" diagnostic. */ - if (to.text[to.len - 1] == '\r') + if (to.len > 0 && to.text[to.len - 1] == '\r') to.text[to.len] = '\r'; else to.text[to.len] = '\n'; -- cgit v1.1