1 /*- 2 * SPDX-License-Identifier: BSD-2-Clause 3 * 4 * Copyright (c) 2009 David Schultz <das@FreeBSD.org> 5 * All rights reserved. 6 * 7 * Copyright (c) 2011 The FreeBSD Foundation 8 * 9 * Portions of this software were developed by David Chisnall 10 * under sponsorship from the FreeBSD Foundation. 11 * 12 * Redistribution and use in source and binary forms, with or without 13 * modification, are permitted provided that the following conditions 14 * are met: 15 * 1. Redistributions of source code must retain the above copyright 16 * notice, this list of conditions and the following disclaimer. 17 * 2. Redistributions in binary form must reproduce the above copyright 18 * notice, this list of conditions and the following disclaimer in the 19 * documentation and/or other materials provided with the distribution. 20 * 21 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 22 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 23 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 24 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 25 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 26 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 27 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 28 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 29 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 30 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 31 * SUCH DAMAGE. 32 */ 33 34 #include "namespace.h" 35 #include <errno.h> 36 #include <limits.h> 37 #include <stdarg.h> 38 #include <stdio.h> 39 #include "un-namespace.h" 40 41 #include "local.h" 42 #include "xlocale_private.h" 43 44 int 45 vdprintf(int fd, const char * __restrict fmt, va_list ap) 46 { 47 FILE f = FAKE_FILE; 48 unsigned char buf[BUFSIZ]; 49 int serrno = errno; 50 int ret; 51 52 if (fd > SHRT_MAX) { 53 errno = EMFILE; 54 return (EOF); 55 } 56 57 f._p = buf; 58 f._w = sizeof(buf); 59 f._flags = __SWR; 60 f._file = fd; 61 f._cookie = &f; 62 f._write = __swrite; 63 f._bf._base = buf; 64 f._bf._size = sizeof(buf); 65 66 if ((ret = __vfprintf(&f, __get_locale(), serrno, fmt, ap)) < 0) 67 return (ret); 68 69 return (__fflush(&f) ? EOF : ret); 70 } 71