diff options
Diffstat (limited to 'debug/vsnprintf_chk.c')
-rw-r--r-- | debug/vsnprintf_chk.c | 70 |
1 files changed, 0 insertions, 70 deletions
diff --git a/debug/vsnprintf_chk.c b/debug/vsnprintf_chk.c deleted file mode 100644 index ff911e33bb..0000000000 --- a/debug/vsnprintf_chk.c +++ /dev/null @@ -1,70 +0,0 @@ -/* Copyright (C) 1991-2017 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, see - <http://www.gnu.org/licenses/>. */ - -#include <stdarg.h> -#include <stdio.h> -#include "../libio/libioP.h" -#include "../libio/strfile.h" - -extern const struct _IO_jump_t _IO_strn_jumps libio_vtable attribute_hidden; - -/* Write formatted output into S, according to the format - string FORMAT, writing no more than MAXLEN characters. */ -/* VARARGS5 */ -int -___vsnprintf_chk (char *s, size_t maxlen, int flags, size_t slen, - const char *format, va_list args) -{ - /* XXX Maybe for less strict version do not fail immediately. - Though, maxlen is supposed to be the size of buffer pointed - to by s, so a conforming program can't pass such maxlen - to *snprintf. */ - if (__glibc_unlikely (slen < maxlen)) - __chk_fail (); - - _IO_strnfile sf; - int ret; -#ifdef _IO_MTSAFE_IO - sf.f._sbf._f._lock = NULL; -#endif - - /* We need to handle the special case where MAXLEN is 0. Use the - overflow buffer right from the start. */ - if (maxlen == 0) - { - s = sf.overflow_buf; - maxlen = sizeof (sf.overflow_buf); - } - - _IO_no_init (&sf.f._sbf._f, _IO_USER_LOCK, -1, NULL, NULL); - _IO_JUMPS (&sf.f._sbf) = &_IO_strn_jumps; - s[0] = '\0'; - - /* For flags > 0 (i.e. __USE_FORTIFY_LEVEL > 1) request that %n - can only come from read-only format strings. */ - if (flags > 0) - sf.f._sbf._f._flags2 |= _IO_FLAGS2_FORTIFY; - - _IO_str_init_static_internal (&sf.f, s, maxlen - 1, s); - ret = _IO_vfprintf (&sf.f._sbf._f, format, args); - - if (sf.f._sbf._f._IO_buf_base != sf.overflow_buf) - *sf.f._sbf._f._IO_write_ptr = '\0'; - return ret; -} -ldbl_hidden_def (___vsnprintf_chk, __vsnprintf_chk) -ldbl_strong_alias (___vsnprintf_chk, __vsnprintf_chk) |