/*
* CDDL HEADER START
*
* The contents of this file are subject to the terms of the
* Common Development and Distribution License (the "License").
* You may not use this file except in compliance with the License.
*
* You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
* or http://www.opensolaris.org/os/licensing.
* See the License for the specific language governing permissions
* and limitations under the License.
*
* When distributing Covered Code, include this CDDL HEADER in each
* file and include the License file at usr/src/OPENSOLARIS.LICENSE.
* If applicable, add the following below this CDDL HEADER, with the
* fields enclosed by brackets "[]" replaced with your own identifying
* information: Portions Copyright [yyyy] [name of copyright owner]
*
* CDDL HEADER END
*
* Copyright (c) 2012, Oracle and/or its affiliates. All rights reserved.
*/
#include <sys/types.h>
#include <string.h>
#include <stdlib.h>
/*
* Tokenize a string, modifying it in place, and returning a NULL-terminated
* array of pointers to the tokens. The caller must free the array.
* Tokenization is very simple, with no quoting or escaping handled. Multiple
* contiguous separators are collapsed.
*/
char **
strsplit(char *str, const char *chset)
{
size_t nr_tokens = 0;
char **tokens;
char *ptr;
char *tmp;
size_t i;
/*
* This can over-estimate, since strtok_r() collapses contiguous
* separators.
*/
for (ptr = str; *ptr != '\0'; ptr++) {
if (strchr(chset, *ptr) != NULL)
nr_tokens++;
}
/* Number of separators + 1 */
nr_tokens++;
/* Terminating NULL. */
nr_tokens++;
if ((tokens = malloc(sizeof (char *) * nr_tokens)) == NULL)
return (NULL);
i = 0;
tokens[i++] = strtok_r(str, chset, &tmp);
while ((tokens[i++] = strtok_r(NULL, chset, &tmp)) != NULL)
;
return (tokens);
}