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 /* 31 * uses wcspbrk and wcsspn to break string into tokens on 32 * sequentially subsequent calls. returns WNULL when no 33 * non-separator characters remain. 34 * 'subsequent' calls are calls with first argument WNULL. 35 */ 36 37 #pragma weak _wstok = wstok 38 39 #include "lint.h" 40 #include "mtlib.h" 41 #include "mse_int.h" 42 #include <stdlib.h> 43 #include <wchar.h> 44 #include <thread.h> 45 #include "libc.h" 46 #include "tsd.h" 47 48 #ifndef WNULL 49 #define WNULL (wchar_t *)0 50 #endif 51 52 wchar_t * 53 __wcstok_xpg5(wchar_t *string, const wchar_t *sepset, wchar_t **ptr) 54 { 55 wchar_t *q, *r; 56 57 /* first or subsequent call */ 58 if ((string == WNULL && (string = *ptr) == 0) || 59 (((q = string + wcsspn(string, sepset)) != WNULL) && *q == L'\0')) 60 return (WNULL); 61 62 /* sepset becomes next string after separator */ 63 if ((r = wcspbrk(q, sepset)) == WNULL) /* move past token */ 64 *ptr = 0; /* indicate this is last token */ 65 else { 66 *r = L'\0'; 67 *ptr = r + 1; 68 } 69 return (q); 70 } 71 72 73 wchar_t * 74 wcstok(wchar_t *string, const wchar_t *sepset) 75 { 76 wchar_t **lasts = tsdalloc(_T_WCSTOK, sizeof (wchar_t *), NULL); 77 78 if (lasts == NULL) 79 return (NULL); 80 return (__wcstok_xpg5(string, sepset, lasts)); 81 } 82 83 wchar_t * 84 wstok(wchar_t *string, const wchar_t *sepset) 85 { 86 return (wcstok(string, sepset)); 87 } 88