mirror of
git://sourceware.org/git/glibc.git
synced 2024-11-21 01:12:26 +08:00
41bdb6e20c
2001-07-06 Paul Eggert <eggert@twinsun.com> * manual/argp.texi: Remove ignored LGPL copyright notice; it's not appropriate for documentation anyway. * manual/libc-texinfo.sh: "Library General Public License" -> "Lesser General Public License". 2001-07-06 Andreas Jaeger <aj@suse.de> * All files under GPL/LGPL version 2: Place under LGPL version 2.1.
60 lines
1.9 KiB
C
60 lines
1.9 KiB
C
/* Copyright (C) 1991, 1992, 1995, 1997 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 <stdarg.h>
|
|
#include <stdio.h>
|
|
#include <string.h>
|
|
|
|
|
|
/*
|
|
* Write formatted output to S according to the format string
|
|
* FORMAT, using the argument list in ARG, writing no more
|
|
* than MAXLEN characters.
|
|
*/
|
|
int
|
|
__vsnprintf (char *s, size_t maxlen, const char *format, va_list arg)
|
|
{
|
|
int done;
|
|
FILE f;
|
|
|
|
/* We have to handle the case of MAXLEN == 0 special. */
|
|
if (maxlen == 0)
|
|
return 0;
|
|
|
|
memset ((void *) &f, 0, sizeof (f));
|
|
f.__magic = _IOMAGIC;
|
|
f.__mode.__write = 1;
|
|
/* The buffer size is one less than MAXLEN
|
|
so we have space for the null terminator. */
|
|
f.__bufp = f.__buffer = (char *) s;
|
|
f.__bufsize = maxlen - 1;
|
|
f.__put_limit = f.__buffer + f.__bufsize;
|
|
f.__get_limit = f.__buffer;
|
|
/* After the buffer is full (MAXLEN characters have been written),
|
|
any more characters written will go to the bit bucket. */
|
|
f.__room_funcs = __default_room_functions;
|
|
f.__io_funcs.__write = NULL;
|
|
f.__seen = 1;
|
|
|
|
done = vfprintf (&f, format, arg);
|
|
*f.__bufp = '\0';
|
|
|
|
return done;
|
|
}
|
|
weak_alias (__vsnprintf, vsnprintf)
|