Date: Wed, 12 Aug 2015 20:16:14 +0000 (UTC) From: Dimitry Andric <dim@FreeBSD.org> To: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-head@freebsd.org Subject: svn commit: r286699 - head/contrib/gcclibs/libcpp Message-ID: <201508122016.t7CKGElN014072@repo.freebsd.org>
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Author: dim Date: Wed Aug 12 20:16:13 2015 New Revision: 286699 URL: https://svnweb.freebsd.org/changeset/base/286699 Log: In gcc's libcpp, stop using the INTTYPE_MAXIMUM() macro, which relies on undefined behavior. The code used this macro to avoid problems on some broken systems which define SSIZE_MAX incorrectly, but this is not needed on FreeBSD, obviously. MFC after: 3 days Modified: head/contrib/gcclibs/libcpp/files.c Modified: head/contrib/gcclibs/libcpp/files.c ============================================================================== --- head/contrib/gcclibs/libcpp/files.c Wed Aug 12 20:08:54 2015 (r286698) +++ head/contrib/gcclibs/libcpp/files.c Wed Aug 12 20:16:13 2015 (r286699) @@ -567,7 +567,7 @@ read_file_guts (cpp_reader *pfile, _cpp_ SSIZE_MAX to be much smaller than the actual range of the type. Use INTTYPE_MAXIMUM unconditionally to ensure this does not bite us. */ - if (file->st.st_size > INTTYPE_MAXIMUM (ssize_t)) + if (file->st.st_size > SSIZE_MAX) { cpp_error (pfile, CPP_DL_ERROR, "%s is too large", file->path); return false; @@ -581,7 +581,7 @@ read_file_guts (cpp_reader *pfile, _cpp_ file->path); return false; } - else if (offset > INTTYPE_MAXIMUM (ssize_t) || (ssize_t)offset > size) + else if (offset > SSIZE_MAX || (ssize_t)offset > size) { cpp_error (pfile, CPP_DL_ERROR, "current position of %s is too large", file->path);
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