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) 1986 AT&T */
28 /* All Rights Reserved */
29
30 #pragma ident "%Z%%M% %I% %E% SMI"
31
32 /*
33 * uses wcspbrk and wcsspn to break string into tokens on
34 * sequentially subsequent calls. returns WNULL when no
35 * non-separator characters remain.
36 * 'subsequent' calls are calls with first argument WNULL.
37 */
38
39 #pragma weak _wstok = wstok
40
41 #include "lint.h"
42 #include "mtlib.h"
43 #include "mse_int.h"
44 #include <stdlib.h>
45 #include <wchar.h>
46 #include <thread.h>
47 #include "libc.h"
48 #include "tsd.h"
49
50 #ifndef WNULL
51 #define WNULL (wchar_t *)0
52 #endif
53
54 wchar_t *
__wcstok_xpg5(wchar_t * string,const wchar_t * sepset,wchar_t ** ptr)55 __wcstok_xpg5(wchar_t *string, const wchar_t *sepset, wchar_t **ptr)
56 {
57 wchar_t *q, *r;
58
59 /* first or subsequent call */
60 if ((string == WNULL && (string = *ptr) == 0) ||
61 (((q = string + wcsspn(string, sepset)) != WNULL) && *q == L'\0'))
62 return (WNULL);
63
64 /* sepset becomes next string after separator */
65 if ((r = wcspbrk(q, sepset)) == WNULL) /* move past token */
66 *ptr = 0; /* indicate this is last token */
67 else {
68 *r = L'\0';
69 *ptr = r + 1;
70 }
71 return (q);
72 }
73
74
75 wchar_t *
wcstok(wchar_t * string,const wchar_t * sepset)76 wcstok(wchar_t *string, const wchar_t *sepset)
77 {
78 wchar_t **lasts = tsdalloc(_T_WCSTOK, sizeof (wchar_t *), NULL);
79
80 if (lasts == NULL)
81 return (NULL);
82 return (__wcstok_xpg5(string, sepset, lasts));
83 }
84
85 wchar_t *
wstok(wchar_t * string,const wchar_t * sepset)86 wstok(wchar_t *string, const wchar_t *sepset)
87 {
88 return (wcstok(string, sepset));
89 }
90