Home | History | Annotate | Download | only in strace
      1 /*
      2  * Copyright (c) 2004 Ulrich Drepper <drepper (at) redhat.com>
      3  * Copyright (c) 2005-2015 Dmitry V. Levin <ldv (at) altlinux.org>
      4  * Copyright (c) 2015-2018 The strace developers.
      5  * All rights reserved.
      6  *
      7  * Redistribution and use in source and binary forms, with or without
      8  * modification, are permitted provided that the following conditions
      9  * are met:
     10  * 1. Redistributions of source code must retain the above copyright
     11  *    notice, this list of conditions and the following disclaimer.
     12  * 2. Redistributions in binary form must reproduce the above copyright
     13  *    notice, this list of conditions and the following disclaimer in the
     14  *    documentation and/or other materials provided with the distribution.
     15  * 3. The name of the author may not be used to endorse or promote products
     16  *    derived from this software without specific prior written permission.
     17  *
     18  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
     19  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
     20  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
     21  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
     22  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
     23  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
     24  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
     25  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
     26  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
     27  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
     28  */
     29 
     30 #include "defs.h"
     31 #include <fcntl.h>
     32 
     33 SYS_FUNC(mq_open)
     34 {
     35 	printpath(tcp, tcp->u_arg[0]);
     36 	tprints(", ");
     37 	/* flags */
     38 	tprint_open_modes(tcp->u_arg[1]);
     39 	if (tcp->u_arg[1] & O_CREAT) {
     40 		/* mode */
     41 		tprints(", ");
     42 		print_numeric_umode_t(tcp->u_arg[2]);
     43 		tprints(", ");
     44 		printmqattr(tcp, tcp->u_arg[3], false);
     45 	}
     46 	return RVAL_DECODED | RVAL_FD;
     47 }
     48 
     49 SYS_FUNC(mq_timedsend)
     50 {
     51 	printfd(tcp, tcp->u_arg[0]);
     52 	tprints(", ");
     53 	printstrn(tcp, tcp->u_arg[1], tcp->u_arg[2]);
     54 	tprintf(", %" PRI_klu ", %u, ", tcp->u_arg[2],
     55 		(unsigned int) tcp->u_arg[3]);
     56 	print_timespec(tcp, tcp->u_arg[4]);
     57 	return RVAL_DECODED;
     58 }
     59 
     60 SYS_FUNC(mq_timedreceive)
     61 {
     62 	if (entering(tcp)) {
     63 		printfd(tcp, tcp->u_arg[0]);
     64 		tprints(", ");
     65 	} else {
     66 		if (syserror(tcp))
     67 			printaddr(tcp->u_arg[1]);
     68 		else
     69 			printstrn(tcp, tcp->u_arg[1], tcp->u_rval);
     70 		tprintf(", %" PRI_klu ", ", tcp->u_arg[2]);
     71 		printnum_int(tcp, tcp->u_arg[3], "%u");
     72 		tprints(", ");
     73 		/*
     74 		 * Since the timeout parameter is read by the kernel
     75 		 * on entering syscall, it has to be decoded the same way
     76 		 * whether the syscall has failed or not.
     77 		 */
     78 		temporarily_clear_syserror(tcp);
     79 		print_timespec(tcp, tcp->u_arg[4]);
     80 		restore_cleared_syserror(tcp);
     81 	}
     82 	return 0;
     83 }
     84 
     85 SYS_FUNC(mq_notify)
     86 {
     87 	printfd(tcp, tcp->u_arg[0]);
     88 	tprints(", ");
     89 	print_sigevent(tcp, tcp->u_arg[1]);
     90 	return RVAL_DECODED;
     91 }
     92 
     93 SYS_FUNC(mq_getsetattr)
     94 {
     95 	if (entering(tcp)) {
     96 		printfd(tcp, tcp->u_arg[0]);
     97 		tprints(", ");
     98 		printmqattr(tcp, tcp->u_arg[1], true);
     99 		tprints(", ");
    100 	} else {
    101 		printmqattr(tcp, tcp->u_arg[2], true);
    102 	}
    103 	return 0;
    104 }
    105