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61 lines
2.1 KiB
61 lines
2.1 KiB
/* |
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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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