diff options
Diffstat (limited to 'debug/stpncpy_chk.c')
-rw-r--r-- | debug/stpncpy_chk.c | 85 |
1 files changed, 0 insertions, 85 deletions
diff --git a/debug/stpncpy_chk.c b/debug/stpncpy_chk.c deleted file mode 100644 index d136339dea..0000000000 --- a/debug/stpncpy_chk.c +++ /dev/null @@ -1,85 +0,0 @@ -/* Copyright (C) 1993,1995,1996,1997,2002,2005 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. */ - -/* This is almost copied from strncpy.c, written by Torbjorn Granlund. */ - -#include <string.h> - - -/* Copy no more than N characters of SRC to DEST, returning the address of - the terminating '\0' in DEST, if any, or else DEST + N. */ -char * -__stpncpy_chk (char *dest, const char *src, size_t n, size_t destlen) -{ - char c; - char *s = dest; - - if (__builtin_expect (destlen < n, 0)) - __chk_fail (); - - if (n >= 4) - { - size_t n4 = n >> 2; - - for (;;) - { - c = *src++; - *dest++ = c; - if (c == '\0') - break; - c = *src++; - *dest++ = c; - if (c == '\0') - break; - c = *src++; - *dest++ = c; - if (c == '\0') - break; - c = *src++; - *dest++ = c; - if (c == '\0') - break; - if (--n4 == 0) - goto last_chars; - } - n -= dest - s; - goto zero_fill; - } - - last_chars: - n &= 3; - if (n == 0) - return dest; - - for (;;) - { - c = *src++; - --n; - *dest++ = c; - if (c == '\0') - break; - if (n == 0) - return dest; - } - - zero_fill: - while (n-- > 0) - dest[n] = '\0'; - - return dest - 1; -} |