1 /**
2 * strsep implementation for compatibility.
3 *
4 * LICENSE
5 * Copyright (c) 2016, NLnet Labs
6 * All rights reserved.
7 *
8 * Redistribution and use in source and binary forms, with or without
9 * modification, are permitted provided that the following conditions are met:
10 * * Redistributions of source code must retain the above copyright notice,
11 * this list of conditions and the following disclaimer.
12 * * Redistributions in binary form must reproduce the above copyright
13 * notice, this list of conditions and the following disclaimer in the
14 * documentation and/or other materials provided with the distribution.
15 * * Neither the name of NLnetLabs nor the names of its
16 * contributors may be used to endorse or promote products derived from this
17 * software without specific prior written permission.
18 *
19 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
20 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
21 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
22 * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
23 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
24 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
25 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
26 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
27 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
28 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
29 * POSSIBILITY OF SUCH DAMAGE.
30 **/
31
32 #include "config.h"
33
34 /** see if character is in the delimiter array */
35 static int
in_delim(char c,const char * delim)36 in_delim(char c, const char* delim)
37 {
38 const char* p;
39 if(!delim)
40 return 0;
41 for(p=delim; *p; p++) {
42 if(*p == c)
43 return 1;
44 }
45 return 0;
46 }
47
strsep(char ** stringp,const char * delim)48 char *strsep(char **stringp, const char *delim)
49 {
50 char* s;
51 char* orig;
52 if(stringp == NULL || *stringp == NULL)
53 return NULL;
54 orig = *stringp;
55 s = *stringp;
56 while(*s && !in_delim(*s, delim))
57 s++;
58 if(*s) {
59 *s = 0;
60 *stringp = s+1;
61 } else {
62 *stringp = NULL;
63 }
64 return orig;
65 }
66