75 lines
2.6 KiB
C
75 lines
2.6 KiB
C
/*-
|
|
* Copyright (c) 1990 The Regents of the University of California.
|
|
* All rights reserved.
|
|
*
|
|
* This code is derived from software contributed to Berkeley by
|
|
* Chris Torek.
|
|
*
|
|
* Redistribution and use in source and binary forms, with or without
|
|
* modification, are permitted provided that the following conditions
|
|
* are met:
|
|
* 1. Redistributions of source code must retain the above copyright
|
|
* notice, this list of conditions and the following disclaimer.
|
|
* 2. Redistributions in binary form must reproduce the above copyright
|
|
* notice, this list of conditions and the following disclaimer in the
|
|
* documentation and/or other materials provided with the distribution.
|
|
* 3. All advertising materials mentioning features or use of this software
|
|
* must display the following acknowledgement:
|
|
* This product includes software developed by the University of
|
|
* California, Berkeley and its contributors.
|
|
* 4. Neither the name of the University nor the names of its contributors
|
|
* may be used to endorse or promote products derived from this software
|
|
* without specific prior written permission.
|
|
*
|
|
* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
|
|
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
|
|
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
|
|
* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
|
|
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
|
|
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
|
|
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
|
|
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
|
|
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
|
|
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
|
|
* SUCH DAMAGE.
|
|
*/
|
|
|
|
#if defined(LIBC_SCCS) && !defined(lint)
|
|
/*static char *sccsid = "from: @(#)strxfrm.c 5.2 (Berkeley) 1/26/91";*/
|
|
static char *rcsid = "$Id: strxfrm.c,v 1.4 1995/06/15 00:08:51 jtc Exp $";
|
|
#endif /* LIBC_SCCS and not lint */
|
|
|
|
#include <string.h>
|
|
|
|
/*
|
|
* Transform src, storing the result in dst, such that
|
|
* strcmp() on transformed strings returns what strcoll()
|
|
* on the original untransformed strings would return.
|
|
*/
|
|
size_t
|
|
strxfrm(dst, src, n)
|
|
register char *dst;
|
|
register const char *src;
|
|
register size_t n;
|
|
{
|
|
register size_t r = 0;
|
|
register int c;
|
|
|
|
/*
|
|
* Since locales are unimplemented, this is just a copy.
|
|
*/
|
|
if (n != 0) {
|
|
while ((c = *src++) != 0) {
|
|
r++;
|
|
if (--n == 0) {
|
|
while (*src++ != 0)
|
|
r++;
|
|
break;
|
|
}
|
|
*dst++ = c;
|
|
}
|
|
*dst = 0;
|
|
}
|
|
return (r);
|
|
}
|