1e74101e4STim J. Robbins /*- 2e74101e4STim J. Robbins * Copyright (c) 2002 Tim J. Robbins. 3e74101e4STim J. Robbins * All rights reserved. 4e74101e4STim J. Robbins * 5e74101e4STim J. Robbins * Redistribution and use in source and binary forms, with or without 6e74101e4STim J. Robbins * modification, are permitted provided that the following conditions 7e74101e4STim J. Robbins * are met: 8e74101e4STim J. Robbins * 1. Redistributions of source code must retain the above copyright 9e74101e4STim J. Robbins * notice, this list of conditions and the following disclaimer. 10e74101e4STim J. Robbins * 2. Redistributions in binary form must reproduce the above copyright 11e74101e4STim J. Robbins * notice, this list of conditions and the following disclaimer in the 12e74101e4STim J. Robbins * documentation and/or other materials provided with the distribution. 13e74101e4STim J. Robbins * 14e74101e4STim J. Robbins * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 15e74101e4STim J. Robbins * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 16e74101e4STim J. Robbins * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 17e74101e4STim J. Robbins * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 18e74101e4STim J. Robbins * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 19e74101e4STim J. Robbins * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 20e74101e4STim J. Robbins * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 21e74101e4STim J. Robbins * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 22e74101e4STim J. Robbins * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 23e74101e4STim J. Robbins * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 24e74101e4STim J. Robbins * SUCH DAMAGE. 25e74101e4STim J. Robbins */ 26e74101e4STim J. Robbins 27e74101e4STim J. Robbins #include <sys/cdefs.h> 28e74101e4STim J. Robbins __FBSDID("$FreeBSD$"); 29e74101e4STim J. Robbins 30e74101e4STim J. Robbins #include "namespace.h" 31e74101e4STim J. Robbins #include <errno.h> 32e74101e4STim J. Robbins #include <stdio.h> 33e74101e4STim J. Robbins #include <wchar.h> 34e74101e4STim J. Robbins #include "un-namespace.h" 35e74101e4STim J. Robbins #include "libc_private.h" 36e74101e4STim J. Robbins #include "local.h" 37e74101e4STim J. Robbins 38e74101e4STim J. Robbins wchar_t * 39e74101e4STim J. Robbins fgetws(wchar_t * __restrict ws, int n, FILE * __restrict fp) 40e74101e4STim J. Robbins { 41e74101e4STim J. Robbins wchar_t *wsp; 4224990dfaSTim J. Robbins wint_t wc; 43e74101e4STim J. Robbins 447591ae56STim J. Robbins FLOCKFILE(fp); 457591ae56STim J. Robbins ORIENT(fp, 1); 46e74101e4STim J. Robbins 477591ae56STim J. Robbins if (n <= 0) { 487591ae56STim J. Robbins errno = EINVAL; 497591ae56STim J. Robbins goto error; 507591ae56STim J. Robbins } 51e74101e4STim J. Robbins 52e74101e4STim J. Robbins wsp = ws; 53e74101e4STim J. Robbins while (n-- > 1) { 54e74101e4STim J. Robbins /* XXX Inefficient */ 557591ae56STim J. Robbins if ((wc = __fgetwc(fp)) == WEOF && errno == EILSEQ) 567591ae56STim J. Robbins goto error; 5724990dfaSTim J. Robbins if (wc == WEOF) { 58e74101e4STim J. Robbins if (wsp == ws) 59e74101e4STim J. Robbins /* EOF/error, no characters read yet. */ 607591ae56STim J. Robbins goto error; 61e74101e4STim J. Robbins break; 62e74101e4STim J. Robbins } 6324990dfaSTim J. Robbins *wsp++ = (wchar_t)wc; 6424990dfaSTim J. Robbins if (wc == L'\n') 65e74101e4STim J. Robbins break; 66e74101e4STim J. Robbins } 67e74101e4STim J. Robbins *wsp++ = L'\0'; 687591ae56STim J. Robbins FUNLOCKFILE(fp); 69e74101e4STim J. Robbins 70e74101e4STim J. Robbins return (ws); 717591ae56STim J. Robbins 727591ae56STim J. Robbins error: 737591ae56STim J. Robbins FUNLOCKFILE(fp); 747591ae56STim J. Robbins return (NULL); 75e74101e4STim J. Robbins } 76