From 554fd8c5195424bdbcabf5de30fdc183aba391bd Mon Sep 17 00:00:00 2001 From: upstream source tree Date: Sun, 15 Mar 2015 20:14:05 -0400 Subject: obtained gcc-4.6.4.tar.bz2 from upstream website; verified gcc-4.6.4.tar.bz2.sig; imported gcc-4.6.4 source tree from verified upstream tarball. downloading a git-generated archive based on the 'upstream' tag should provide you with a source tree that is binary identical to the one extracted from the above tarball. if you have obtained the source via the command 'git clone', however, do note that line-endings of files in your working directory might differ from line-endings of the respective files in the upstream repository. --- libssp/strcat-chk.c | 72 +++++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 72 insertions(+) create mode 100644 libssp/strcat-chk.c (limited to 'libssp/strcat-chk.c') diff --git a/libssp/strcat-chk.c b/libssp/strcat-chk.c new file mode 100644 index 000000000..2481933eb --- /dev/null +++ b/libssp/strcat-chk.c @@ -0,0 +1,72 @@ +/* Checking strcat. + Copyright (C) 1991, 1997, 2003, 2004, 2005, 2009 Free Software Foundation, Inc. + +This file is part of GCC. + +GCC is free software; you can redistribute it and/or modify it under +the terms of the GNU General Public License as published by the Free +Software Foundation; either version 3, or (at your option) any later +version. + +In addition to the permissions in the GNU General Public License, the +Free Software Foundation gives you unlimited permission to link the +compiled version of this file into combinations with other programs, +and to distribute those combinations without any restriction coming +from the use of this file. (The General Public License restrictions +do apply in other respects; for example, they cover modification of +the file, and distribution when not linked into a combine +executable.) + +GCC is distributed in the hope that it will be useful, but WITHOUT ANY +WARRANTY; without even the implied warranty of MERCHANTABILITY or +FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License +for more details. + +Under Section 7 of GPL version 3, you are granted additional +permissions described in the GCC Runtime Library Exception, version +3.1, as published by the Free Software Foundation. + +You should have received a copy of the GNU General Public License and +a copy of the GCC Runtime Library Exception along with this program; +see the files COPYING3 and COPYING.RUNTIME respectively. If not, see +. */ + + +#include "config.h" +#include +#ifdef HAVE_STRING_H +# include +#endif + +extern void __chk_fail (void) __attribute__((__noreturn__)); + +char * +__strcat_chk (char *__restrict__ dest, const char *__restrict__ src, + size_t slen) +{ + char *s1 = dest; + const char *s2 = src; + char c; + + do + { + if (slen-- == 0) + __chk_fail (); + c = *s1++; + } + while (c != '\0'); + + ++slen; + s1 -= 2; + + do + { + if (slen-- == 0) + __chk_fail (); + c = *s2++; + *++s1 = c; + } + while (c != '\0'); + + return dest; +} -- cgit v1.2.3