File: [local] / src / usr.bin / sup / src / Attic / snprintf.c (download)
Revision 1.2, Tue Feb 19 19:39:39 2002 UTC (22 years, 3 months ago) by millert
Branch: MAIN
CVS Tags: OPENBSD_3_3_BASE, OPENBSD_3_3, OPENBSD_3_2_BASE, OPENBSD_3_2, OPENBSD_3_1_BASE, OPENBSD_3_1 Changes since 1.1: +1 -17 lines
We live in an ANSI C world. Remove lots of gratuitous #ifdef __STDC__ cruft.
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/*-
* Copyright (c) 1990, 1993
* The Regents of the University of California. All rights reserved.
*
* Chris Torek.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* This product includes software developed by the University of
* California, Berkeley and its contributors.
* 4. Neither the name of the University nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*/
#if defined(LIBC_SCCS) && !defined(lint)
static char rcsid[] = "$OpenBSD: snprintf.c,v 1.2 2002/02/19 19:39:39 millert Exp $";
#endif /* LIBC_SCCS and not lint */
#include <stdio.h>
#include <stdarg.h>
#ifdef _IOSTRG
#define STRFLAG (_IOSTRG|_IOWRT) /* no _IOWRT: avoid stdio bug */
#else
#define STRFLAG (_IOREAD) /* XXX: Assume svr4 stdio */
#endif
#ifdef NEED_SNPRINTF
snprintf(char *str, size_t n, char const *fmt, ...)
{
int ret;
va_list ap;
FILE f;
if ((int)n < 1)
return (EOF);
va_start(ap, fmt);
f._flag = STRFLAG;
f._base = f._ptr = str;
f._cnt = n-1;
f._file = -1;
_doprnt(fmt, ap, &f);
f._cnt++;
putc('\0', &f);
if (f._cnt<0)
f._cnt = 0;
va_end(ap);
return(n-f._cnt-1);
}
#endif /* NEED_SNPRINTF */