strace/print_mq_attr.c
Eugene Syromyatnikov 3e22464ec7 mq: Properly print mq_flags field
mq_flags field of struct mq_attr can contain only O_NONBLOCK flag (other
flags are treated as invalid by mq_getsetattr). Moreover, this field is
ignored by mq_open at all (O_NONBLOCK is set via oflag, not via attr
attribute).

* xlat/mq_attr_flags.in: New file.
* print_mq_attr.c: Include xlat/mq_attr_flags.h.
(printmqattr): New parameter, bool decode_flags; cast members of struct
mq_attr to long long type; use mq_attr_flags xlat for printing mq_flags;
print mq_flags as flags only in case decode_flags parameter is set
to true.
* mq.c (SYS_FUNC(mq_open)): Specify value of false for decode_flags
parameter of printmqattr call.
(SYS_FUNC(mq_getsetattr)): Specify value of true for decode_flags
parameter of printmqattr call.
* tests/mq.expected: Update expected output.
2016-10-29 02:54:02 +03:00

68 lines
2.5 KiB
C

/*
* Copyright (c) 2004 Ulrich Drepper <drepper@redhat.com>
* Copyright (c) 2005-2015 Dmitry V. Levin <ldv@altlinux.org>
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. The name of the author may not be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#include "defs.h"
#include DEF_MPERS_TYPE(mq_attr_t)
#ifdef HAVE_MQUEUE_H
# include <mqueue.h>
typedef struct mq_attr mq_attr_t;
#elif defined HAVE_LINUX_MQUEUE_H
# include <linux/types.h>
# include <linux/mqueue.h>
typedef struct mq_attr mq_attr_t;
#endif
#include "xlat/mq_attr_flags.h"
#include MPERS_DEFS
MPERS_PRINTER_DECL(void, printmqattr, struct tcb *tcp, const long addr,
bool decode_flags)
{
#if defined HAVE_MQUEUE_H || defined HAVE_LINUX_MQUEUE_H
mq_attr_t attr;
if (umove_or_printaddr(tcp, addr, &attr))
return;
tprints("{mq_flags=");
if (decode_flags)
printflags64(mq_attr_flags,
zero_extend_signed_to_ull(attr.mq_flags),
"/* O_??? */");
else
tprintf("%#llx", zero_extend_signed_to_ull(attr.mq_flags));
tprintf(", mq_maxmsg=%lld, mq_msgsize=%lld, mq_curmsgs=%lld}",
sign_extend_unsigned_to_ll(attr.mq_maxmsg),
sign_extend_unsigned_to_ll(attr.mq_msgsize),
sign_extend_unsigned_to_ll(attr.mq_curmsgs));
#else
printaddr(addr);
#endif
}