1 /* $NetBSD: strsep_copy.c,v 1.1.1.2 2014/04/24 12:45:52 pettai Exp $ */
2
3 /*
4 * Copyright (c) 2000, 2002 Kungliga Tekniska Högskolan
5 * (Royal Institute of Technology, Stockholm, Sweden).
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
10 * are met:
11 *
12 * 1. Redistributions of source code must retain the above copyright
13 * notice, this list of conditions and the following disclaimer.
14 *
15 * 2. Redistributions in binary form must reproduce the above copyright
16 * notice, this list of conditions and the following disclaimer in the
17 * documentation and/or other materials provided with the distribution.
18 *
19 * 3. Neither the name of the Institute nor the names of its contributors
20 * may be used to endorse or promote products derived from this software
21 * without specific prior written permission.
22 *
23 * THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND
24 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
25 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
26 * ARE DISCLAIMED. IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE
27 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
28 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
29 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
30 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
31 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
32 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
33 * SUCH DAMAGE.
34 */
35
36 #include <config.h>
37
38 #include <string.h>
39
40 #include <krb5/roken.h>
41
42 #ifndef HAVE_STRSEP_COPY
43
44 /* strsep, but with const stringp, so return string in buf */
45
46 ROKEN_LIB_FUNCTION ssize_t ROKEN_LIB_CALL
strsep_copy(const char ** stringp,const char * delim,char * buf,size_t len)47 strsep_copy(const char **stringp, const char *delim, char *buf, size_t len)
48 {
49 const char *save = *stringp;
50 size_t l;
51 if(save == NULL)
52 return -1;
53 *stringp = *stringp + strcspn(*stringp, delim);
54 l = min(len, (size_t)(*stringp - save));
55 if(len > 0) {
56 memcpy(buf, save, l);
57 buf[l] = '\0';
58 }
59
60 l = *stringp - save;
61 if(**stringp == '\0')
62 *stringp = NULL;
63 else
64 (*stringp)++;
65 return l;
66 }
67
68 #endif
69