1/*-
2 * Copyright (c) 1993
3 *	The Regents of the University of California.  All rights reserved.
4 *
5 * This code is derived from software contributed to Berkeley by
6 * Paul Borman at Krystal Technologies.
7 *
8 * Redistribution and use in source and binary forms, with or without
9 * modification, are permitted provided that the following conditions
10 * are met:
11 * 1. Redistributions of source code must retain the above copyright
12 *    notice, this list of conditions and the following disclaimer.
13 * 2. Redistributions in binary form must reproduce the above copyright
14 *    notice, this list of conditions and the following disclaimer in the
15 *    documentation and/or other materials provided with the distribution.
16 * 3. All advertising materials mentioning features or use of this software
17 *    must display the following acknowledgement:
18 *	This product includes software developed by the University of
19 *	California, Berkeley and its contributors.
20 * 4. Neither the name of the University nor the names of its contributors
21 *    may be used to endorse or promote products derived from this software
22 *    without specific prior written permission.
23 *
24 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
25 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
26 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
27 * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
28 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
29 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
30 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
31 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
32 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
33 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
34 * SUCH DAMAGE.
35 */
36
37#if defined(LIBC_SCCS) && !defined(lint)
38static char sccsid[] = "@(#)frune.c	8.1 (Berkeley) 6/4/93";
39#endif /* LIBC_SCCS and not lint */
40#include <sys/cdefs.h>
41__FBSDID("$FreeBSD: src/lib/libc/locale/frune.c,v 1.3 2002/09/18 06:19:12 tjr Exp $");
42
43#include "xlocale_private.h"
44
45#include <limits.h>
46#include <rune.h>
47#include <stddef.h>
48#include <stdio.h>
49#include "runedepreciated.h"
50
51long
52fgetrune(fp)
53	FILE *fp;
54{
55	rune_t  r;
56	int c, len;
57	char buf[MB_LEN_MAX];
58	char const *result;
59	__darwin_rune_t invalid_rune = __current_locale()->__lc_ctype->_CurrentRuneLocale.__invalid_rune;
60	static int warn_depreciated = 1;
61
62	if (warn_depreciated) {
63		warn_depreciated = 0;
64		fprintf(stderr, __rune_depreciated_msg, "fgetrune");
65	}
66
67	len = 0;
68	do {
69		if ((c = getc(fp)) == EOF) {
70			if (len)
71				break;
72			return (EOF);
73		}
74		buf[len++] = c;
75
76		if ((r = __sgetrune(buf, len, &result)) != invalid_rune)
77			return (r);
78	} while (result == buf && len < MB_LEN_MAX);
79
80	while (--len > 0)
81		ungetc(buf[len], fp);
82	return (invalid_rune);
83}
84
85int
86fungetrune(r, fp)
87	rune_t r;
88	FILE* fp;
89{
90	int len;
91	char buf[MB_LEN_MAX];
92	static int warn_depreciated = 1;
93
94	if (warn_depreciated) {
95		warn_depreciated = 0;
96		fprintf(stderr, __rune_depreciated_msg, "fungetrune");
97	}
98
99	len = __sputrune(r, buf, MB_LEN_MAX, 0);
100	while (len-- > 0)
101		if (ungetc(buf[len], fp) == EOF)
102			return (EOF);
103	return (0);
104}
105
106int
107fputrune(r, fp)
108	rune_t r;
109	FILE *fp;
110{
111	int i, len;
112	char buf[MB_LEN_MAX];
113	static int warn_depreciated = 1;
114
115	if (warn_depreciated) {
116		warn_depreciated = 0;
117		fprintf(stderr, __rune_depreciated_msg, "fputrune");
118	}
119
120	len = __sputrune(r, buf, MB_LEN_MAX, 0);
121
122	for (i = 0; i < len; ++i)
123		if (putc(buf[i], fp) == EOF)
124			return (EOF);
125
126	return (0);
127}
128