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/* $NetBSD: vprintf.c,v 1.9 2006/03/14 17:42:06 christos Exp $ */
/*
* Copyright (c) 1991 Carnegie Mellon University
* All Rights Reserved.
*
* Permission to use, copy, modify and distribute this software and its
* documentation is hereby granted, provided that both the copyright
* notice and this permission notice appear in all copies of the
* software, derivative works or modified versions, and any portions
* thereof, and that both notices appear in supporting documentation.
*
* CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS"
* CONDITION. CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND FOR
* ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE.
*
* Carnegie Mellon requests users of this software to return to
*
* Software Distribution Coordinator or Software.Distribution@CS.CMU.EDU
* School of Computer Science
* Carnegie Mellon University
* Pittsburgh PA 15213-3890
*
* any improvements or extensions that they make and grant Carnegie the rights
* to redistribute these changes.
*/
/*
* varargs versions of printf routines
*
**********************************************************************
* HISTORY
* Revision 2.5 89/09/08 18:15:55 mbj
* Use _doprnt() for the Multimax (an "old" architecture).
* [89/09/08 mbj]
*
* Revision 2.4 89/08/03 14:40:10 mja
* Add vsnprintf() routine.
* [89/07/12 mja]
*
* Terminate vsprintf() string with null byte.
* [89/04/21 mja]
*
* Change to use new hidden name for _doprnt on MIPS.
* [89/04/18 mja]
*
* Revision 2.3 89/06/10 14:13:43 gm0w
* Added putc of NULL byte to vsprintf.
* [89/06/10 gm0w]
*
* Revision 2.2 88/12/13 13:53:17 gm0w
* From Brad White.
* [88/12/13 gm0w]
************************************************************
*/
#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 DOPRINT_VA
/*
* system provides _doprnt_va routine
*/
#define _doprnt _doprnt_va
#else
/*
* system provides _doprnt routine
*/
#define _doprnt_va _doprnt
#endif
#ifdef NEED_VPRINTF
int
vprintf(fmt, args)
char *fmt;
va_list args;
{
_doprnt(fmt, args, stdout);
return (ferror(stdout) ? EOF : 0);
}
int
vfprintf(f, fmt, args)
FILE *f;
char *fmt;
va_list args;
{
_doprnt(fmt, args, f);
return (ferror(f) ? EOF : 0);
}
int
vsprintf(s, fmt, args)
char *s, *fmt;
va_list args;
{
FILE fakebuf;
fakebuf._flag = STRFLAG;
fakebuf._base = (void *) s;
fakebuf._ptr = (void *) s;
fakebuf._cnt = 32767;
_doprnt(fmt, args, &fakebuf);
putc('\0', &fakebuf);
return (strlen(s));
}
#endif /* NEED_VPRINTF */
#if defined(NEED_VSNPRINTF) || defined(NEED_VPRINTF)
int
vsnprintf(s, n, fmt, args)
char *s, *fmt;
va_list args;
{
FILE fakebuf;
fakebuf._flag = STRFLAG;
fakebuf._base = (void *) s;
fakebuf._ptr = (void *) s;
fakebuf._cnt = n - 1;
fakebuf._file = -1;
_doprnt(fmt, args, &fakebuf);
fakebuf._cnt++;
putc('\0', &fakebuf);
if (fakebuf._cnt < 0)
fakebuf._cnt = 0;
return (n - fakebuf._cnt - 1);
}
#endif /* NEED_VPRINTF || NEED_VSNPRINTF */
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