Branch data     Line data    Source code

       1                 :            : /*
       2                 :            :  * Copyright (c) 2008-2015 Dmitry V. Levin <ldv@altlinux.org>
       3                 :            :  * All rights reserved.
       4                 :            :  *
       5                 :            :  * Redistribution and use in source and binary forms, with or without
       6                 :            :  * modification, are permitted provided that the following conditions
       7                 :            :  * are met:
       8                 :            :  * 1. Redistributions of source code must retain the above copyright
       9                 :            :  *    notice, this list of conditions and the following disclaimer.
      10                 :            :  * 2. Redistributions in binary form must reproduce the above copyright
      11                 :            :  *    notice, this list of conditions and the following disclaimer in the
      12                 :            :  *    documentation and/or other materials provided with the distribution.
      13                 :            :  * 3. The name of the author may not be used to endorse or promote products
      14                 :            :  *    derived from this software without specific prior written permission.
      15                 :            :  *
      16                 :            :  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
      17                 :            :  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
      18                 :            :  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
      19                 :            :  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
      20                 :            :  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
      21                 :            :  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
      22                 :            :  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
      23                 :            :  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
      24                 :            :  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
      25                 :            :  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
      26                 :            :  */
      27                 :            : 
      28                 :            : #include "defs.h"
      29                 :            : #include <fcntl.h>
      30                 :            : #ifdef HAVE_SYS_SIGNALFD_H
      31                 :            : # include <sys/signalfd.h>
      32                 :            : #endif
      33                 :            : 
      34                 :            : #include "xlat/sfd_flags.h"
      35                 :            : 
      36                 :            : static int
      37                 :          6 : do_signalfd(struct tcb *tcp, int flags_arg)
      38                 :            : {
      39                 :            :         /* NB: kernel requires arg[2] == NSIG_BYTES */
      40                 :          6 :         printfd(tcp, tcp->u_arg[0]);
      41                 :          6 :         tprints(", ");
      42                 :          6 :         print_sigset_addr_len(tcp, tcp->u_arg[1], tcp->u_arg[2]);
      43                 :          6 :         tprintf(", %" PRI_klu, tcp->u_arg[2]);
      44         [ +  - ]:          6 :         if (flags_arg >= 0) {
      45                 :          6 :                 tprints(", ");
      46                 :          6 :                 printflags(sfd_flags, tcp->u_arg[flags_arg], "SFD_???");
      47                 :            :         }
      48                 :            : 
      49                 :          6 :         return RVAL_DECODED | RVAL_FD;
      50                 :            : }
      51                 :            : 
      52                 :          0 : SYS_FUNC(signalfd)
      53                 :            : {
      54                 :          0 :         return do_signalfd(tcp, -1);
      55                 :            : }
      56                 :            : 
      57                 :          6 : SYS_FUNC(signalfd4)
      58                 :            : {
      59                 :          6 :         return do_signalfd(tcp, 3);
      60                 :            : }