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author | Ulrich Drepper <drepper@redhat.com> | 2004-12-22 20:10:10 +0000 |
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committer | Ulrich Drepper <drepper@redhat.com> | 2004-12-22 20:10:10 +0000 |
commit | a334319f6530564d22e775935d9c91663623a1b4 (patch) | |
tree | b5877475619e4c938e98757d518bb1e9cbead751 /debug/strcpy_chk.c | |
parent | 0ecb606cb6cf65de1d9fc8a919bceb4be476c602 (diff) | |
download | glibc-a334319f6530564d22e775935d9c91663623a1b4.zip glibc-a334319f6530564d22e775935d9c91663623a1b4.tar.gz glibc-a334319f6530564d22e775935d9c91663623a1b4.tar.bz2 |
(CFLAGS-tst-align.c): Add -mpreferred-stack-boundary=4.
Diffstat (limited to 'debug/strcpy_chk.c')
-rw-r--r-- | debug/strcpy_chk.c | 68 |
1 files changed, 0 insertions, 68 deletions
diff --git a/debug/strcpy_chk.c b/debug/strcpy_chk.c deleted file mode 100644 index a4d909f..0000000 --- a/debug/strcpy_chk.c +++ /dev/null @@ -1,68 +0,0 @@ -/* Copyright (C) 1991, 1997, 2000, 2003, 2004 Free Software Foundation, Inc. - This file is part of the GNU C Library. - - The GNU C Library is free software; you can redistribute it and/or - modify it under the terms of the GNU Lesser General Public - License as published by the Free Software Foundation; either - version 2.1 of the License, or (at your option) any later version. - - The GNU C Library 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 - Lesser General Public License for more details. - - You should have received a copy of the GNU Lesser General Public - License along with the GNU C Library; if not, write to the Free - Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA - 02111-1307 USA. */ - -#include <stddef.h> -#include <string.h> -#include <memcopy.h> - -#undef strcpy - -/* Copy SRC to DEST with checking of destination buffer overflow. */ -char * -__strcpy_chk (dest, src, destlen) - char *dest; - const char *src; - size_t destlen; -{ - reg_char c; - char *s = (char *) src; - const ptrdiff_t off = dest - s; - - while (__builtin_expect (destlen >= 4, 0)) - { - c = s[0]; - s[off] = c; - if (c == '\0') - return dest; - c = s[1]; - s[off + 1] = c; - if (c == '\0') - return dest; - c = s[2]; - s[off + 2] = c; - if (c == '\0') - return dest; - c = s[3]; - s[off + 3] = c; - if (c == '\0') - return dest; - destlen -= 4; - s += 4; - } - - do - { - if (__builtin_expect (destlen-- == 0, 0)) - __chk_fail (); - c = *s; - *(s++ + off) = c; - } - while (c != '\0'); - - return dest; -} |