59 lines
1.5 KiB
C
59 lines
1.5 KiB
C
|
/* Copyright (C) 2004, 2007, 2009, 2010 Free Software Foundation, Inc.
|
||
|
|
|
||
|
|
Written by Yoann Vandoorselaere <yoann@prelude-ids.org>.
|
||
|
|
|
||
|
|
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 3, 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
|
||
|
|
|
||
|
|
/* Specification. */
|
||
|
|
#include <string.h>
|
||
|
|
|
||
|
|
char *
|
||
|
|
strsep (char **stringp, const char *delim)
|
||
|
|
{
|
||
|
|
char *start = *stringp;
|
||
|
|
char *ptr;
|
||
|
|
|
||
|
|
if (start == NULL)
|
||
|
|
return NULL;
|
||
|
|
|
||
|
|
/* Optimize the case of no delimiters. */
|
||
|
|
if (delim[0] == '\0')
|
||
|
|
{
|
||
|
|
*stringp = NULL;
|
||
|
|
return start;
|
||
|
|
}
|
||
|
|
|
||
|
|
/* Optimize the case of one delimiter. */
|
||
|
|
if (delim[1] == '\0')
|
||
|
|
ptr = strchr (start, delim[0]);
|
||
|
|
else
|
||
|
|
/* The general case. */
|
||
|
|
ptr = strpbrk (start, delim);
|
||
|
|
if (ptr == NULL)
|
||
|
|
{
|
||
|
|
*stringp = NULL;
|
||
|
|
return start;
|
||
|
|
}
|
||
|
|
|
||
|
|
*ptr = '\0';
|
||
|
|
*stringp = ptr + 1;
|
||
|
|
|
||
|
|
return start;
|
||
|
|
}
|