Date: Thu, 12 Dec 2013 19:02:42 +0000 (UTC) From: "Pedro F. Giffuni" <pfg@FreeBSD.org> To: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-stable@freebsd.org, svn-src-stable-8@freebsd.org Subject: svn commit: r259273 - stable/8/contrib/gcclibs/libcpp Message-ID: <201312121902.rBCJ2gDZ039641@svn.freebsd.org>
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Author: pfg Date: Thu Dec 12 19:02:42 2013 New Revision: 259273 URL: http://svnweb.freebsd.org/changeset/base/259273 Log: MFC r258712; libcpp: fix an underflow. Similar fix seen in Apple's gcc42. Obtained from: OpenBSD (Rev 1.2) MFC after: 2 weeks Modified: stable/8/contrib/gcclibs/libcpp/charset.c Directory Properties: stable/8/ (props changed) stable/8/contrib/ (props changed) stable/8/contrib/gcclibs/ (props changed) Modified: stable/8/contrib/gcclibs/libcpp/charset.c ============================================================================== --- stable/8/contrib/gcclibs/libcpp/charset.c Thu Dec 12 19:02:18 2013 (r259272) +++ stable/8/contrib/gcclibs/libcpp/charset.c Thu Dec 12 19:02:42 2013 (r259273) @@ -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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