| /* |
| * 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); |
| } |
