Project

General

Profile

Statistics
| Branch: | Revision:

scoutos / prex-0.9.0 / usr / lib / libc / string / strxfrm.c @ 03e9c04a

History | View | Annotate | Download (2.17 KB)

1 03e9c04a Brad Neuman
/*-
2
 * Copyright (c) 1990, 1993
3
 *        The Regents of the University of California.  All rights reserved.
4
 *
5
 * This code is derived from software contributed to Berkeley by
6
 * Chris Torek.
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
 * 1. Redistributions of source code must retain the above copyright
12
 *    notice, this list of conditions and the following disclaimer.
13
 * 2. Redistributions in binary form must reproduce the above copyright
14
 *    notice, this list of conditions and the following disclaimer in the
15
 *    documentation and/or other materials provided with the distribution.
16
 * 3. Neither the name of the University nor the names of its contributors
17
 *    may be used to endorse or promote products derived from this software
18
 *    without specific prior written permission.
19
 *
20
 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
21
 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
22
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
23
 * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
24
 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
25
 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
26
 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
27
 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
28
 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
29
 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
30
 * SUCH DAMAGE.
31
 */
32
33
#include <sys/cdefs.h>
34
#include <string.h>
35
36
/*
37
 * Transform src, storing the result in dst, such that
38
 * strcmp() on transformed strings returns what strcoll()
39
 * on the original untransformed strings would return.
40
 */
41
size_t
42
strxfrm(dst, src, n)
43
        char *dst;
44
        const char *src;
45
        size_t n;
46
{
47
        size_t srclen, copysize;
48
49
        /*
50
         * Since locales are unimplemented, this is just a copy.
51
         */
52
        srclen = strlen(src);
53
        if (n != 0) {
54
                copysize = srclen < n ? srclen : n - 1;
55
                (void)memcpy(dst, src, copysize);
56
                dst[copysize] = 0;
57
        }
58
        return (srclen);
59
}