Date: Thu, 28 Nov 2013 16:36:03 +0000 (UTC) From: "Pedro F. Giffuni" <pfg@FreeBSD.org> To: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-head@freebsd.org Subject: svn commit: r258712 - head/contrib/gcclibs/libcpp Message-ID: <201311281636.rASGa3EG012331@svn.freebsd.org>
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Author: pfg Date: Thu Nov 28 16:36:03 2013 New Revision: 258712 URL: http://svnweb.freebsd.org/changeset/base/258712 Log: libcpp: fix an underflow. Obtained from: OpenBSD (Rev 1.2) MFC after: 2 weeks Modified: head/contrib/gcclibs/libcpp/charset.c Modified: head/contrib/gcclibs/libcpp/charset.c ============================================================================== --- head/contrib/gcclibs/libcpp/charset.c Thu Nov 28 15:28:51 2013 (r258711) +++ head/contrib/gcclibs/libcpp/charset.c Thu Nov 28 16:36:03 2013 (r258712) @@ -1628,7 +1628,7 @@ _cpp_convert_input (cpp_reader *pfile, c 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';
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