1 /*-
2  *   BSD LICENSE
3  *
4  *   Copyright(c) 2010-2014 Intel Corporation. All rights reserved.
5  *   All rights reserved.
6  *
7  *   Redistribution and use in source and binary forms, with or without
8  *   modification, are permitted provided that the following conditions
9  *   are met:
10  *
11  *     * Redistributions of source code must retain the above copyright
12  *       notice, this list of conditions and the following disclaimer.
13  *     * Redistributions in binary form must reproduce the above copyright
14  *       notice, this list of conditions and the following disclaimer in
15  *       the documentation and/or other materials provided with the
16  *       distribution.
17  *     * Neither the name of Intel Corporation nor the names of its
18  *       contributors may be used to endorse or promote products derived
19  *       from this software without specific prior written permission.
20  *
21  *   THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
22  *   "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
23  *   LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
24  *   A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
25  *   OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
26  *   SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
27  *   LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
28  *   DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
29  *   THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
30  *   (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
31  *   OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
32  */
33 
34 #include <string.h>
35 #include <stdio.h>
36 #include <stdarg.h>
37 #include <errno.h>
38 
39 #include <rte_string_fns.h>
40 
41 /* split string into tokens */
42 int
43 rte_strsplit(char *string, int stringlen,
44 	     char **tokens, int maxtokens, char delim)
45 {
46 	int i, tok = 0;
47 	int tokstart = 1; /* first token is right at start of string */
48 
49 	if (string == NULL || tokens == NULL)
50 		goto einval_error;
51 
52 	for (i = 0; i < stringlen; i++) {
53 		if (string[i] == '\0' || tok >= maxtokens)
54 			break;
55 		if (tokstart) {
56 			tokstart = 0;
57 			tokens[tok++] = &string[i];
58 		}
59 		if (string[i] == delim) {
60 			string[i] = '\0';
61 			tokstart = 1;
62 		}
63 	}
64 	return tok;
65 
66 einval_error:
67 	errno = EINVAL;
68 	return -1;
69 }
70