You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
62 lines
2.1 KiB
62 lines
2.1 KiB
4 months ago
|
/*
|
||
|
|
* Copyright (c) 2008-2015 Dmitry V. Levin <ldv@altlinux.org>
|
||
|
|
* Copyright (c) 2015-2017 The strace developers.
|
||
|
|
* 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 <fcntl.h>
|
||
|
|
#ifdef HAVE_SYS_SIGNALFD_H
|
||
|
|
# include <sys/signalfd.h>
|
||
|
|
#endif
|
||
|
|
|
||
|
|
#include "xlat/sfd_flags.h"
|
||
|
|
|
||
|
|
static int
|
||
|
|
do_signalfd(struct tcb *tcp, int flags_arg)
|
||
|
|
{
|
||
|
|
/* NB: kernel requires arg[2] == NSIG_BYTES */
|
||
|
|
printfd(tcp, tcp->u_arg[0]);
|
||
|
|
tprints(", ");
|
||
|
|
print_sigset_addr_len(tcp, tcp->u_arg[1], tcp->u_arg[2]);
|
||
|
|
tprintf(", %" PRI_klu, tcp->u_arg[2]);
|
||
|
|
if (flags_arg >= 0) {
|
||
|
|
tprints(", ");
|
||
|
|
printflags(sfd_flags, tcp->u_arg[flags_arg], "SFD_???");
|
||
|
|
}
|
||
|
|
|
||
|
|
return RVAL_DECODED | RVAL_FD;
|
||
|
|
}
|
||
|
|
|
||
|
|
SYS_FUNC(signalfd)
|
||
|
|
{
|
||
|
|
return do_signalfd(tcp, -1);
|
||
|
|
}
|
||
|
|
|
||
|
|
SYS_FUNC(signalfd4)
|
||
|
|
{
|
||
|
|
return do_signalfd(tcp, 3);
|
||
|
|
}
|