rockbox/firmware/common/strtok.c
Daniel Stenberg 2acc0ac542 Updated our source code header to explicitly mention that we are GPL v2 or
later. We still need to hunt down snippets used that are not. 1324 modified
files...
http://www.rockbox.org/mail/archive/rockbox-dev-archive-2008-06/0060.shtml


git-svn-id: svn://svn.rockbox.org/rockbox/trunk@17847 a1c6a512-1295-4272-9138-f99709370657
2008-06-28 18:10:04 +00:00

63 lines
2.1 KiB
C

/***************************************************************************
* __________ __ ___.
* Open \______ \ ____ ____ | | _\_ |__ _______ ___
* Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ /
* Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < <
* Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \
* \/ \/ \/ \/ \/
* $Id$
*
* Copyright (C) 2002 by Daniel Stenberg
*
* 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
* of the License, or (at your option) any later version.
*
* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
* KIND, either express or implied. *
****************************************************************************/
#include "config.h"
#ifndef HAVE_STRTOK_R
#include <stddef.h>
#include <string.h>
char *
strtok_r(char *ptr, const char *sep, char **end)
{
if (!ptr)
/* we got NULL input so then we get our last position instead */
ptr = *end;
/* pass all letters that are including in the separator string */
while (*ptr && strchr(sep, *ptr))
++ptr;
if (*ptr) {
/* so this is where the next piece of string starts */
char *start = ptr;
/* set the end pointer to the first byte after the start */
*end = start + 1;
/* scan through the string to find where it ends, it ends on a
null byte or a character that exists in the separator string */
while (**end && !strchr(sep, **end))
++*end;
if (**end) {
/* the end is not a null byte */
**end = '\0'; /* zero terminate it! */
++*end; /* advance last pointer to beyond the null byte */
}
return start; /* return the position where the string starts */
}
/* we ended up on a null byte, there are no more strings to find! */
return NULL;
}
#endif /* this was only compiled if strtok_r wasn't present */