| /* $OpenBSD: strsep.c,v 1.6 2005/08/08 08:05:37 espie Exp $ */ |
| |
| /*- |
| * Copyright (c) 1990, 1993 |
| * The Regents of the University of California. All rights reserved. |
| * |
| * Redistribution and use in source and binary forms, with or without |
| * modification, are permitted provided that the following conditions |
| * are met: |
| * 1. Redistributions of source code must retain the above copyright |
| * notice, this list of conditions and the following disclaimer. |
| * 2. Redistributions in binary form must reproduce the above copyright |
| * notice, this list of conditions and the following disclaimer in the |
| * documentation and/or other materials provided with the distribution. |
| * 3. Neither the name of the University nor the names of its contributors |
| * may be used to endorse or promote products derived from this software |
| * without specific prior written permission. |
| * |
| * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND |
| * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
| * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE |
| * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE |
| * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL |
| * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS |
| * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) |
| * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT |
| * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY |
| * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF |
| * SUCH DAMAGE. |
| */ |
| |
| /* OPENBSD ORIGINAL: lib/libc/string/strsep.c */ |
| |
| #include "includes.h" |
| |
| #if !defined(HAVE_STRSEP) |
| |
| #include <string.h> |
| #include <stdio.h> |
| |
| /* |
| * Get next token from string *stringp, where tokens are possibly-empty |
| * strings separated by characters from delim. |
| * |
| * Writes NULs into the string at *stringp to end tokens. |
| * delim need not remain constant from call to call. |
| * On return, *stringp points past the last NUL written (if there might |
| * be further tokens), or is NULL (if there are definitely no more tokens). |
| * |
| * If *stringp is NULL, strsep returns NULL. |
| */ |
| char * |
| strsep(char **stringp, const char *delim) |
| { |
| char *s; |
| const char *spanp; |
| int c, sc; |
| char *tok; |
| |
| if ((s = *stringp) == NULL) |
| return (NULL); |
| for (tok = s;;) { |
| c = *s++; |
| spanp = delim; |
| do { |
| if ((sc = *spanp++) == c) { |
| if (c == 0) |
| s = NULL; |
| else |
| s[-1] = 0; |
| *stringp = s; |
| return (tok); |
| } |
| } while (sc != 0); |
| } |
| /* NOTREACHED */ |
| } |
| |
| #endif /* !defined(HAVE_STRSEP) */ |
