1 /* 2 * Copyright (c) 1995 Alex Tatmanjants <alex@elvisti.kiev.ua> 3 * at Electronni Visti IA, Kiev, Ukraine. 4 * All rights reserved. 5 * 6 * Redistribution and use in source and binary forms, with or without 7 * modification, are permitted provided that the following conditions 8 * are met: 9 * 1. Redistributions of source code must retain the above copyright 10 * notice, this list of conditions and the following disclaimer. 11 * 2. Redistributions in binary form must reproduce the above copyright 12 * notice, this list of conditions and the following disclaimer in the 13 * documentation and/or other materials provided with the distribution. 14 * 15 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND 16 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 17 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 18 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE 19 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 20 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 21 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 22 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 23 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 24 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 25 * SUCH DAMAGE. 26 */ 27 28 /* 29 * Copyright 2010 Nexenta Systems, Inc. All rights reserved. 30 * Use is subject to license terms. 31 */ 32 33 #include "lint.h" 34 #include <stdlib.h> 35 #include <string.h> 36 #include <errno.h> 37 #include "collate.h" 38 39 size_t 40 strxfrm(char *_RESTRICT_KYWD dest, const char *_RESTRICT_KYWD src, size_t len) 41 { 42 int prim, sec, l; 43 size_t slen; 44 char *s, *ss; 45 46 if (!*src) { 47 if (len > 0) 48 *dest = '\0'; 49 return (0); 50 } 51 52 if (__collate_load_error) 53 return (strlcpy(dest, src, len)); 54 55 slen = 0; 56 prim = sec = 0; 57 ss = s = __collate_substitute(src); 58 if (s == NULL) { 59 /* Best effort, caller must check errno per spec. */ 60 errno = ENOMEM; 61 return (strlcpy(dest, src, len)); 62 } 63 while (*s) { 64 while (*s && !prim) { 65 __collate_lookup(s, &l, &prim, &sec); 66 s += l; 67 } 68 if (prim) { 69 if (len > 1) { 70 *dest++ = (char)prim; 71 len--; 72 } 73 slen++; 74 prim = 0; 75 } 76 } 77 free(ss); 78 if (len > 0) 79 *dest = '\0'; 80 81 return (slen); 82 } 83