1 /* $OpenBSD: isfdtype.c,v 1.3 2003/06/17 21:56:23 millert Exp $ */ 2 3 /* 4 * Copyright (c) 2002 Todd C. Miller <Todd.Miller@courtesan.com> 5 * 6 * Permission to use, copy, modify, and distribute this software for any 7 * purpose with or without fee is hereby granted, provided that the above 8 * copyright notice and this permission notice appear in all copies. 9 * 10 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES 11 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF 12 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR 13 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES 14 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN 15 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF 16 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. 17 * 18 * Sponsored in part by the Defense Advanced Research Projects 19 * Agency (DARPA) and Air Force Research Laboratory, Air Force 20 * Materiel Command, USAF, under agreement number F39502-99-1-0512. 21 */ 22 23 #ifndef lint 24 static const char rcsid[] = "$OpenBSD: isfdtype.c,v 1.3 2003/06/17 21:56:23 millert Exp $"; 25 #endif /* not lint */ 26 27 #include <sys/types.h> 28 #include <sys/stat.h> 29 30 int 31 isfdtype(int fd, int fdtype) 32 { 33 struct stat sb; 34 35 if (fstat(fd, &sb) != 0) 36 return (-1); 37 38 return ((sb.st_mode & S_IFMT) == fdtype); 39 } 40