/* Reentrant string tokenizer. Generic version. Copyright (C) 1991,1996-1999,2001,2004 Free Software Foundation, Inc. This file is part of the GNU C Library. This program is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation; either version 2, or (at your option) any later version. This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details. You should have received a copy of the GNU General Public License along with this program; if not, write to the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. */ #ifdef HAVE_CONFIG_H # include <config.h> #endif #include <string.h> #undef strtok_r #undef __strtok_r #ifndef _LIBC /* Get specification. */ # include "strtok_r.h" # define __strtok_r strtok_r # define __rawmemchr strchr #endif /* Parse S into tokens separated by characters in DELIM. If S is NULL, the saved pointer in SAVE_PTR is used as the next starting point. For example: char s[] = "-abc-=-def"; char *sp; x = strtok_r(s, "-", &sp); // x = "abc", sp = "=-def" x = strtok_r(NULL, "-=", &sp); // x = "def", sp = NULL x = strtok_r(NULL, "=", &sp); // x = NULL // s = "abc\0-def\0" */ char * __strtok_r (char *s, const char *delim, char **save_ptr) { char *token; if (s == NULL) s = *save_ptr; /* Scan leading delimiters. */ s += strspn (s, delim); if (*s == '\0') { *save_ptr = s; return NULL; } /* Find the end of the token. */ token = s; s = strpbrk (token, delim); if (s == NULL) /* This token finishes the string. */ *save_ptr = __rawmemchr (token, '\0'); else { /* Terminate the token and make *SAVE_PTR point past it. */ *s = '\0'; *save_ptr = s + 1; } return token; } #ifdef weak_alias libc_hidden_def (__strtok_r) weak_alias (__strtok_r, strtok_r) #endif