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      1 /*
      2  * Copyright (c) 2005-2015 Dmitry V. Levin <ldv (at) altlinux.org>
      3  * Copyright (c) 2015-2017 The strace developers.
      4  * All rights reserved.
      5  *
      6  * Redistribution and use in source and binary forms, with or without
      7  * modification, are permitted provided that the following conditions
      8  * are met:
      9  * 1. Redistributions of source code must retain the above copyright
     10  *    notice, this list of conditions and the following disclaimer.
     11  * 2. Redistributions in binary form must reproduce the above copyright
     12  *    notice, this list of conditions and the following disclaimer in the
     13  *    documentation and/or other materials provided with the distribution.
     14  * 3. The name of the author may not be used to endorse or promote products
     15  *    derived from this software without specific prior written permission.
     16  *
     17  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
     18  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
     19  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
     20  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
     21  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
     22  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
     23  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
     24  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
     25  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
     26  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
     27  */
     28 
     29 #include "defs.h"
     30 #include "stat.h"
     31 
     32 static void
     33 decode_struct_stat(struct tcb *const tcp, const kernel_ulong_t addr)
     34 {
     35 	struct strace_stat st;
     36 
     37 	if (fetch_struct_stat(tcp, addr, &st))
     38 		print_struct_stat(tcp, &st);
     39 }
     40 
     41 SYS_FUNC(stat)
     42 {
     43 	if (entering(tcp)) {
     44 		printpath(tcp, tcp->u_arg[0]);
     45 		tprints(", ");
     46 	} else {
     47 		decode_struct_stat(tcp, tcp->u_arg[1]);
     48 	}
     49 	return 0;
     50 }
     51 
     52 SYS_FUNC(fstat)
     53 {
     54 	if (entering(tcp)) {
     55 		printfd(tcp, tcp->u_arg[0]);
     56 		tprints(", ");
     57 	} else {
     58 		decode_struct_stat(tcp, tcp->u_arg[1]);
     59 	}
     60 	return 0;
     61 }
     62 
     63 SYS_FUNC(newfstatat)
     64 {
     65 	if (entering(tcp)) {
     66 		print_dirfd(tcp, tcp->u_arg[0]);
     67 		printpath(tcp, tcp->u_arg[1]);
     68 		tprints(", ");
     69 	} else {
     70 		decode_struct_stat(tcp, tcp->u_arg[2]);
     71 		tprints(", ");
     72 		printflags(at_flags, tcp->u_arg[3], "AT_???");
     73 	}
     74 	return 0;
     75 }
     76