freebsd-dev/usr.sbin/sup/lib/vprintf.c
1995-12-26 05:03:11 +00:00

144 lines
3.5 KiB
C

/*
* 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
* $Log: vprintf.c,v $
* Revision 1.1.1.1 1995/12/26 04:54:47 peter
* Import the unmodified version of the sup that we are using.
* The heritage of this version is not clear. It appears to be NetBSD
* derived from some time ago.
*
* Revision 1.1.1.1 1993/08/21 00:46:35 jkh
* Current sup with compression support.
*
* Revision 1.1.1.1 1993/05/21 14:52:19 cgd
* initial import of CMU's SUP to NetBSD
*
* 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 <varargs.h>
#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 = _IOSTRG+_IOWRT; /* no _IOWRT: avoid stdio bug */
fakebuf._ptr = 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;
#ifdef __hpux
fakebuf._flag = _IODUMMY+_IOWRT;/* no _IOWRT: avoid stdio bug */
fakebuf._base = fakebuf._ptr = s;
fakebuf._cnt = n-1;
fakebuf.__fileL = fakebuf.__fileH = 0xff;
#else
fakebuf._flag = _IOSTRG+_IOWRT; /* no _IOWRT: avoid stdio bug */
fakebuf._ptr = s;
fakebuf._cnt = n-1;
#endif
_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 */