diff options
Diffstat (limited to 'sysdeps/generic/strncpy_chk.c')
-rw-r--r-- | sysdeps/generic/strncpy_chk.c | 89 |
1 files changed, 0 insertions, 89 deletions
diff --git a/sysdeps/generic/strncpy_chk.c b/sysdeps/generic/strncpy_chk.c deleted file mode 100644 index bdede7738b..0000000000 --- a/sysdeps/generic/strncpy_chk.c +++ /dev/null @@ -1,89 +0,0 @@ -/* Copyright (C) 1991, 1997, 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 <string.h> -#include <memcopy.h> - - -char * -__strncpy_chk (s1, s2, n, s1len) - char *s1; - const char *s2; - size_t n; - size_t s1len; -{ - reg_char c; - char *s = s1; - - if (__builtin_expect (s1len < n, 0)) - __chk_fail (); - - --s1; - - if (n >= 4) - { - size_t n4 = n >> 2; - - for (;;) - { - c = *s2++; - *++s1 = c; - if (c == '\0') - break; - c = *s2++; - *++s1 = c; - if (c == '\0') - break; - c = *s2++; - *++s1 = c; - if (c == '\0') - break; - c = *s2++; - *++s1 = c; - if (c == '\0') - break; - if (--n4 == 0) - goto last_chars; - } - n = n - (s1 - s) - 1; - if (n == 0) - return s; - goto zero_fill; - } - - last_chars: - n &= 3; - if (n == 0) - return s; - - do - { - c = *s2++; - *++s1 = c; - if (--n == 0) - return s; - } - while (c != '\0'); - - zero_fill: - do - *++s1 = '\0'; - while (--n > 0); - - return s; -} |