162 lines
4.4 KiB
C
162 lines
4.4 KiB
C
/*
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* Copyright (c) 1991 Carnegie Mellon University
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* All Rights Reserved.
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*
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* Permission to use, copy, modify and distribute this software and its
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* documentation is hereby granted, provided that both the copyright
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* notice and this permission notice appear in all copies of the
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* software, derivative works or modified versions, and any portions
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* thereof, and that both notices appear in supporting documentation.
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*
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* CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS"
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* CONDITION. CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND FOR
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* ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE.
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*
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* Carnegie Mellon requests users of this software to return to
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*
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* Software Distribution Coordinator or Software.Distribution@CS.CMU.EDU
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* School of Computer Science
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* Carnegie Mellon University
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* Pittsburgh PA 15213-3890
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*
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* any improvements or extensions that they make and grant Carnegie the rights
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* to redistribute these changes.
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*/
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/*
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* varargs versions of printf routines
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*
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**********************************************************************
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* HISTORY
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* $Log: vprintf.c,v $
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* Revision 1.4 1996/12/31 18:08:12 christos
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* 64 bit patches (mostly long -> time_t) from Matthew Jacob (?)
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* sup now works on the alpha!
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*
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* Revision 1.3 1996/09/30 04:19:55 christos
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* Use a better fix for vsnprintf on svr4. Apparently, svr4 stdio does not
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* have _IOSTRG, but it uses _IOREAD to indicate that _doprnt() should print
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* to the buffer and not to the file stream.
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*
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* Revision 1.2 1996/09/05 16:50:13 christos
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* - for portability make sure that we never use "" as a pathname, always convert
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* it to "."
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* - include sockio.h if needed to define SIOCGIFCONF (for svr4)
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* - use POSIX signals and wait macros
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* - add -S silent flag, so that the client does not print messages unless there
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* is something wrong
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* - use flock or lockf as appropriate
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* - use fstatfs or fstatvfs to find out if a filesystem is mounted over nfs,
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* don't depend on the major() = 255 hack; it only works on legacy systems.
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* - use gzip -cf to make sure that gzip compresses the file even when the file
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* would expand.
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* - punt on defining vsnprintf if _IOSTRG is not defined; use sprintf...
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*
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* To compile sup on systems other than NetBSD, you'll need a copy of daemon.c,
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* vis.c, vis.h and sys/cdefs.h. Maybe we should keep those in the distribution?
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*
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* Revision 1.1.1.1 1993/05/21 14:52:19 cgd
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* initial import of CMU's SUP to NetBSD
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*
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* Revision 2.5 89/09/08 18:15:55 mbj
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* Use _doprnt() for the Multimax (an "old" architecture).
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* [89/09/08 mbj]
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*
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* Revision 2.4 89/08/03 14:40:10 mja
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* Add vsnprintf() routine.
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* [89/07/12 mja]
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*
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* Terminate vsprintf() string with null byte.
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* [89/04/21 mja]
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*
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* Change to use new hidden name for _doprnt on MIPS.
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* [89/04/18 mja]
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*
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* Revision 2.3 89/06/10 14:13:43 gm0w
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* Added putc of NULL byte to vsprintf.
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* [89/06/10 gm0w]
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*
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* Revision 2.2 88/12/13 13:53:17 gm0w
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* From Brad White.
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* [88/12/13 gm0w]
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************************************************************
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*/
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#include <stdio.h>
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#include <varargs.h>
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#ifdef _IOSTRG
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#define STRFLAG (_IOSTRG|_IOWRT) /* no _IOWRT: avoid stdio bug */
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#else
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#define STRFLAG (_IOREAD) /* XXX: Assume svr4 stdio */
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#endif
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#ifdef DOPRINT_VA
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/*
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* system provides _doprnt_va routine
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*/
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#define _doprnt _doprnt_va
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#else
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/*
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* system provides _doprnt routine
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*/
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#define _doprnt_va _doprnt
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#endif
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#ifdef NEED_VPRINTF
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int
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vprintf(fmt, args)
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char *fmt;
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va_list args;
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{
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_doprnt(fmt, args, stdout);
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return (ferror(stdout) ? EOF : 0);
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}
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int
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vfprintf(f, fmt, args)
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FILE *f;
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char *fmt;
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va_list args;
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{
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_doprnt(fmt, args, f);
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return (ferror(f) ? EOF : 0);
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}
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int
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vsprintf(s, fmt, args)
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char *s, *fmt;
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va_list args;
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{
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FILE fakebuf;
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fakebuf._flag = STRFLAG;
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fakebuf._ptr = s;
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fakebuf._cnt = 32767;
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_doprnt(fmt, args, &fakebuf);
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putc('\0', &fakebuf);
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return (strlen(s));
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}
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#endif /* NEED_VPRINTF */
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#if defined(NEED_VSNPRINTF) || defined(NEED_VPRINTF)
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int
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vsnprintf(s, n, fmt, args)
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char *s, *fmt;
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va_list args;
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{
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FILE fakebuf;
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fakebuf._flag = STRFLAG;
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fakebuf._ptr = s;
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fakebuf._cnt = n-1;
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fakebuf._file = -1;
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_doprnt(fmt, args, &fakebuf);
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fakebuf._cnt++;
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putc('\0', &fakebuf);
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if (fakebuf._cnt<0)
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fakebuf._cnt = 0;
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return (n-fakebuf._cnt-1);
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}
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#endif /* NEED_VPRINTF || NEED_VSNPRINTF */
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