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5b2abdfb A |
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. | |
5b2abdfb A |
26 | */ |
27 | ||
5b2abdfb | 28 | #include <sys/cdefs.h> |
1f2f436a | 29 | __FBSDID("$FreeBSD: src/lib/libc/string/strxfrm.c,v 1.17 2008/10/19 09:10:44 delphij Exp $"); |
9385eb3d A |
30 | |
31 | #include <stdlib.h> | |
32 | #include <string.h> | |
33 | #include "collate.h" | |
5b2abdfb | 34 | |
9385eb3d A |
35 | size_t |
36 | strxfrm(char * __restrict dest, const char * __restrict src, size_t len) | |
37 | { | |
38 | int prim, sec, l; | |
39 | size_t slen; | |
40 | char *s, *ss; | |
5b2abdfb | 41 | |
9385eb3d A |
42 | if (!*src) { |
43 | if (len > 0) | |
44 | *dest = '\0'; | |
45 | return 0; | |
46 | } | |
5b2abdfb | 47 | |
1f2f436a A |
48 | if (__collate_load_error) |
49 | return strlcpy(dest, src, len); | |
5b2abdfb | 50 | |
9385eb3d A |
51 | slen = 0; |
52 | prim = sec = 0; | |
53 | ss = s = __collate_substitute(src); | |
54 | while (*s) { | |
55 | while (*s && !prim) { | |
56 | __collate_lookup(s, &l, &prim, &sec); | |
57 | s += l; | |
58 | } | |
59 | if (prim) { | |
60 | if (len > 1) { | |
61 | *dest++ = (char)prim; | |
62 | len--; | |
63 | } | |
64 | slen++; | |
65 | prim = 0; | |
66 | } | |
67 | } | |
68 | free(ss); | |
69 | if (len > 0) | |
70 | *dest = '\0'; | |
5b2abdfb | 71 | |
9385eb3d A |
72 | return slen; |
73 | } |