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      1 /*
      2  * Copyright (c) 1991, 1992 Paul Kranenburg <pk (at) cs.few.eur.nl>
      3  * Copyright (c) 1993 Branko Lankester <branko (at) hacktic.nl>
      4  * Copyright (c) 1993-1996 Rick Sladkey <jrs (at) world.std.com>
      5  * Copyright (c) 1996-1999 Wichert Akkerman <wichert (at) cistron.nl>
      6  * Copyright (c) 2006 Ulrich Drepper <drepper (at) redhat.com>
      7  * Copyright (c) 2006 Bernhard Kaindl <bk (at) suse.de>
      8  * Copyright (c) 2006-2015 Dmitry V. Levin <ldv (at) altlinux.org>
      9  * Copyright (c) 2014-2017 The strace developers.
     10  * All rights reserved.
     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  * 3. The name of the author may not be used to endorse or promote products
     21  *    derived from this software without specific prior written permission.
     22  *
     23  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
     24  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
     25  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
     26  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
     27  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
     28  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
     29  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
     30  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
     31  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
     32  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
     33  */
     34 
     35 #include "defs.h"
     36 
     37 #include <fcntl.h>
     38 #include <sys/stat.h>
     39 
     40 static void
     41 decode_mknod(struct tcb *tcp, int offset)
     42 {
     43 	unsigned short mode = tcp->u_arg[offset + 1];
     44 	unsigned int dev;
     45 
     46 	printpath(tcp, tcp->u_arg[offset]);
     47 	tprints(", ");
     48 	print_symbolic_mode_t(mode);
     49 	switch (mode & S_IFMT) {
     50 	case S_IFCHR:
     51 	case S_IFBLK:
     52 		dev = tcp->u_arg[offset + 2];
     53 		tprints(", ");
     54 		print_dev_t(dev);
     55 		break;
     56 	}
     57 }
     58 
     59 SYS_FUNC(mknod)
     60 {
     61 	decode_mknod(tcp, 0);
     62 
     63 	return RVAL_DECODED;
     64 }
     65 
     66 SYS_FUNC(mknodat)
     67 {
     68 	print_dirfd(tcp, tcp->u_arg[0]);
     69 	decode_mknod(tcp, 1);
     70 
     71 	return RVAL_DECODED;
     72 }
     73