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 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