/* * Copyright (c) 1991 The Regents of the University of California. * All rights reserved. * * 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 *rcsid = "$OpenBSD: multibyte.c,v 1.2 1996/08/19 08:33:39 tholo Exp $"; #endif /* LIBC_SCCS and not lint */ #include <stdlib.h> /* * Stub multibyte character functions. * This cheezy implementation is fixed to the native single-byte * character set. */ int mblen(s, n) const char *s; size_t n; { if (s == NULL || *s == '\0') return 0; if (n == 0) return -1; return 1; } /*ARGSUSED*/ int mbtowc(pwc, s, n) wchar_t *pwc; const char *s; size_t n; { if (s == NULL) return 0; if (n == 0) return -1; if (pwc) *pwc = (wchar_t) *s; return (*s != '\0'); } /*ARGSUSED*/ int #ifdef __STDC__ wctomb(char *s, wchar_t wchar) #else wctomb(s, wchar) char *s; wchar_t wchar; #endif { if (s == NULL) return 0; *s = (char) wchar; return 1; } /*ARGSUSED*/ size_t mbstowcs(pwcs, s, n) wchar_t *pwcs; const char *s; size_t n; { int count = 0; if (n != 0) { do { if ((*pwcs++ = (wchar_t) *s++) == 0) break; count++; } while (--n != 0); } return count; } /*ARGSUSED*/ size_t wcstombs(s, pwcs, n) char *s; const wchar_t *pwcs; size_t n; { int count = 0; if (n != 0) { do { if ((*s++ = (char) *pwcs++) == 0) break; count++; } while (--n != 0); } return count; }