1/* $NetBSD: dprintf.c,v 1.1 2013/03/05 16:26:41 christos Exp $ */ 2 3/*- 4 * Copyright (c) 2013 NetBSD Foundation, Inc. 5 * All rights reserved. 6 * 7 * This code is derived from software contributed to The NetBSD Foundation 8 * by Christos Zoulas. 9 * 10 * Redistribution and use in source and binary forms, with or without 11 * modification, are permitted provided that the following conditions 12 * are met: 13 * 1. Redistributions of source code must retain the above copyright 14 * notice, this list of conditions and the following disclaimer. 15 * 2. Redistributions in binary form must reproduce the above copyright 16 * notice, this list of conditions and the following disclaimer in the 17 * documentation and/or other materials provided with the distribution. 18 * 19 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 20 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 21 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 22 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 23 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 24 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 25 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 26 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 27 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 28 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 29 * POSSIBILITY OF SUCH DAMAGE. 30 */ 31 32#ifdef HAVE_NBTOOL_CONFIG_H 33#include "nbtool_config.h" 34#endif 35 36#if !HAVE_DPRINTF 37#include <stdlib.h> 38#ifndef HAVE_NBTOOL_CONFIG_H 39/* These headers are required, but included from nbtool_config.h */ 40#include <stdio.h> 41#include <stdarg.h> 42#include <unistd.h> 43#endif 44 45int 46dprintf(int fd, const char *fmt, ...) 47{ 48 FILE *fp; 49 int e; 50 va_list ap; 51 52 if ((e = dup(fd)) == -1) 53 return -1; 54 55 if ((fp = fdopen(e, "r+")) == NULL) { 56 (void)close(e); 57 return -1; 58 } 59 60 va_start(ap, fmt); 61 e = vfprintf(fp, fmt, ap); 62 va_end(ap); 63 64 (void)fclose(fp); 65 return e; 66} 67 68#endif /* HAVE_DPRINTF */ 69 70#ifdef TEST 71int 72main(int argc, char *argv[]) 73{ 74 dprintf(1, "Hello %s\n", "world"); 75 return 0; 76} 77#endif 78