62 lines
2.1 KiB
C
62 lines
2.1 KiB
C
/*
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* Copyright (c) 2008-2015 Dmitry V. Levin <ldv@altlinux.org>
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* Copyright (c) 2015-2017 The strace developers.
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. The name of the author may not be used to endorse or promote products
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* derived from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
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* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#include "defs.h"
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#include <fcntl.h>
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#ifdef HAVE_SYS_SIGNALFD_H
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# include <sys/signalfd.h>
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#endif
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#include "xlat/sfd_flags.h"
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static int
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do_signalfd(struct tcb *tcp, int flags_arg)
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{
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/* NB: kernel requires arg[2] == NSIG_BYTES */
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printfd(tcp, tcp->u_arg[0]);
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tprints(", ");
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print_sigset_addr_len(tcp, tcp->u_arg[1], tcp->u_arg[2]);
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tprintf(", %" PRI_klu, tcp->u_arg[2]);
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if (flags_arg >= 0) {
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tprints(", ");
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printflags(sfd_flags, tcp->u_arg[flags_arg], "SFD_???");
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}
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return RVAL_DECODED | RVAL_FD;
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}
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SYS_FUNC(signalfd)
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{
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return do_signalfd(tcp, -1);
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}
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SYS_FUNC(signalfd4)
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{
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return do_signalfd(tcp, 3);
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}
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