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- /* This is file STRXFRM.C */
- /* This file may have been modified by DJ Delorie (Jan 1991). If so,
- ** these modifications are Coyright (C) 1993 DJ Delorie, 24 Kirsten Ave,
- ** Rochester NH, 03867-2954, USA.
- */
-
- /*-
- * 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 are permitted
- * provided that: (1) source distributions retain this entire copyright
- * notice and comment, and (2) distributions including binaries display
- * the following acknowledgement: ``This product includes software
- * developed by the University of California, Berkeley and its contributors''
- * in the documentation or other materials provided with the distribution
- * and in all advertising materials mentioning features or use of this
- * software. 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 ``AS IS'' AND WITHOUT ANY EXPRESS OR
- * IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED
- * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
- */
-
- #if defined(LIBC_SCCS) && !defined(lint)
- static char sccsid[] = "@(#)strxfrm.c 5.1 (Berkeley) 5/17/90";
- #endif /* LIBC_SCCS and not lint */
-
- #include <sys/stdc.h>
- #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);
- }
-