usr/src/lib/libbc/libc/stdio/sys5/vsprintf.c

   1 /*
   2  * CDDL HEADER START
   3  *
   4  * The contents of this file are subject to the terms of the
   5  * Common Development and Distribution License, Version 1.0 only
   6  * (the "License").  You may not use this file except in compliance
   7  * with the License.
   8  *
   9  * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
  10  * or http://www.opensolaris.org/os/licensing.
  11  * See the License for the specific language governing permissions
  12  * and limitations under the License.
  13  *
  14  * When distributing Covered Code, include this CDDL HEADER in each
  15  * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
  16  * If applicable, add the following below this CDDL HEADER, with the
  17  * fields enclosed by brackets "[]" replaced with your own identifying
  18  * information: Portions Copyright [yyyy] [name of copyright owner]
  19  *
  20  * CDDL HEADER END
  21  */
  22 /*
  23  * Copyright 2005 Sun Microsystems, Inc.  All rights reserved.
  24  * Use is subject to license terms.
  25  */
  26
  27 /*      Copyright (c) 1984, 1986, 1987, 1988, 1989 AT&T */
  28 /*        All Rights Reserved   */
  29
  30 /*
  31  * Portions of this source code were derived from Berkeley 4.3 BSD
  32  * under license from the Regents of the University of California.
  33  */
  34
  35 #pragma ident   "%Z%%M% %I%     %E% SMI"
  36
  37 /*LINTLIBRARY*/
  38 #include <stdio.h>
  39 #include <stdarg.h>
  40 #include <values.h>
  41
  42 extern int _doprnt();
  43
  44 /*VARARGS2*/
  45 int
  46 vsprintf(char *string, char *format, va_list ap)
  47 {
  48         int count;
  49         FILE siop;
  50
  51         siop._cnt = MAXINT;
  52         siop._base = siop._ptr = (unsigned char *)string;
  53         siop._flag = _IOWRT+_IOSTRG;
  54         count = _doprnt(format, ap, &siop);
  55         *siop._ptr = '\0'; /* plant terminating null character */
  56         return (count);
  57 }