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 (the "License").
6 * You may not use this file except in compliance with the License.
7 *
8 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
9 * or http://www.opensolaris.org/os/licensing.
10 * See the License for the specific language governing permissions
11 * and limitations under the License.
12 *
13 * When distributing Covered Code, include this CDDL HEADER in each
14 * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
15 * If applicable, add the following below this CDDL HEADER, with the
16 * fields enclosed by brackets "[]" replaced with your own identifying
17 * information: Portions Copyright [yyyy] [name of copyright owner]
18 *
19 * CDDL HEADER END
20 */
21
22/*
23 * Copyright 2008 Sun Microsystems, Inc.  All rights reserved.
24 * Use is subject to license terms.
25 */
26
27/*	Copyright (c) 1988 AT&T	*/
28/*	  All Rights Reserved  	*/
29
30#pragma ident	"%Z%%M%	%I%	%E% SMI"
31
32#include "lint.h"
33#include <mtlib.h>
34#include <stdarg.h>
35#include <values.h>
36#include <errno.h>
37#include <thread.h>
38#include <synch.h>
39#include <sys/types.h>
40#include "print.h"
41#include "libc.h"
42
43/*VARARGS2*/
44int
45sprintf(char *string, const char *format, ...)
46{
47	ssize_t count;
48	FILE siop;
49	va_list ap;
50
51	siop._cnt = MAXINT;
52	siop._base = siop._ptr = (unsigned char *)string;
53	siop._flag = _IOREAD; /* distinguish dummy file descriptor */
54	va_start(ap, format);
55
56	count = _ndoprnt(format, ap, &siop, 0);
57	va_end(ap);
58	*siop._ptr = '\0'; /* plant terminating null character */
59	if (count == EOF) {
60		return (EOF);
61	}
62
63	/* check for overflow */
64	if ((size_t)count > MAXINT) {
65		errno = EOVERFLOW;
66		return (EOF);
67	} else {
68		return ((int)count);
69	}
70}
71
72#ifndef _LP64
73
74/*
75 * 32-bit shadow function of sprintf().
76 * When using the c89 compiler to build 32-bit applications, the size
77 * of intmax_t is 32-bits, otherwise the size of intmax_t is 64-bits.
78 * The shadow function uses 32-bit size of intmax_t for %j conversion.
79 * The #pragma redefine_extname in <stdio.h> selects the proper routine
80 * at compile time for the user application.
81 * NOTE: this function is only available in the 32-bit library.
82 */
83
84int
85_sprintf_c89(char *string, const char *format, ...)
86{
87	ssize_t count;
88	va_list ap;
89
90	va_start(ap, format);
91	count = _vsprintf_c89(string, format, ap);
92	va_end(ap);
93	return ((int)count);
94}
95
96#endif	/* _LP64 */
97