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author | upstream source tree <ports@midipix.org> | 2015-03-15 20:14:05 -0400 |
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committer | upstream source tree <ports@midipix.org> | 2015-03-15 20:14:05 -0400 |
commit | 554fd8c5195424bdbcabf5de30fdc183aba391bd (patch) | |
tree | 976dc5ab7fddf506dadce60ae936f43f58787092 /libssp/strcpy-chk.c | |
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Diffstat (limited to 'libssp/strcpy-chk.c')
-rw-r--r-- | libssp/strcpy-chk.c | 51 |
1 files changed, 51 insertions, 0 deletions
diff --git a/libssp/strcpy-chk.c b/libssp/strcpy-chk.c new file mode 100644 index 000000000..7568cdbcd --- /dev/null +++ b/libssp/strcpy-chk.c @@ -0,0 +1,51 @@ +/* Checking strcpy. + Copyright (C) 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 +<http://www.gnu.org/licenses/>. */ + + +#include "config.h" +#include <ssp/ssp.h> +#ifdef HAVE_STRING_H +# include <string.h> +#endif + +extern void __chk_fail (void) __attribute__((__noreturn__)); + +char * +__strcpy_chk (char *__restrict__ dest, const char *__restrict__ src, + size_t slen) +{ + size_t len = strlen (src); + if (len >= slen) + __chk_fail (); + return memcpy (dest, src, len + 1); +} |