granicus.if.org Git - strace/blob - mq.c

   1 /*
   2  * Copyright (c) 2004 Ulrich Drepper <drepper@redhat.com>
   3  * Copyright (c) 2005-2015 Dmitry V. Levin <ldv@altlinux.org>
   4  * Copyright (c) 2015-2019 The strace developers.
   5  * All rights reserved.
   6  *
   7  * SPDX-License-Identifier: LGPL-2.1-or-later
   8  */
   9
  10 #include "defs.h"
  11 #include <fcntl.h>
  12
  13 SYS_FUNC(mq_open)
  14 {
  15         printpath(tcp, tcp->u_arg[0]);
  16         tprints(", ");
  17         /* flags */
  18         tprint_open_modes(tcp->u_arg[1]);
  19         if (tcp->u_arg[1] & O_CREAT) {
  20                 /* mode */
  21                 tprints(", ");
  22                 print_numeric_umode_t(tcp->u_arg[2]);
  23                 tprints(", ");
  24                 printmqattr(tcp, tcp->u_arg[3], false);
  25         }
  26         return RVAL_DECODED | RVAL_FD;
  27 }
  28
  29 static int
  30 do_mq_timedsend(struct tcb *const tcp, const print_obj_by_addr_fn print_ts)
  31 {
  32         printfd(tcp, tcp->u_arg[0]);
  33         tprints(", ");
  34         printstrn(tcp, tcp->u_arg[1], tcp->u_arg[2]);
  35         tprintf(", %" PRI_klu ", %u, ", tcp->u_arg[2],
  36                 (unsigned int) tcp->u_arg[3]);
  37         print_ts(tcp, tcp->u_arg[4]);
  38         return RVAL_DECODED;
  39 }
  40
  41 #if HAVE_ARCH_TIME32_SYSCALLS
  42 SYS_FUNC(mq_timedsend_time32)
  43 {
  44         return do_mq_timedsend(tcp, print_timespec32);
  45 }
  46 #endif
  47
  48 SYS_FUNC(mq_timedsend_time64)
  49 {
  50         return do_mq_timedsend(tcp, print_timespec64);
  51 }
  52
  53 static int
  54 do_mq_timedreceive(struct tcb *const tcp, const print_obj_by_addr_fn print_ts)
  55 {
  56         if (entering(tcp)) {
  57                 printfd(tcp, tcp->u_arg[0]);
  58                 tprints(", ");
  59         } else {
  60                 if (syserror(tcp))
  61                         printaddr(tcp->u_arg[1]);
  62                 else
  63                         printstrn(tcp, tcp->u_arg[1], tcp->u_rval);
  64                 tprintf(", %" PRI_klu ", ", tcp->u_arg[2]);
  65                 printnum_int(tcp, tcp->u_arg[3], "%u");
  66                 tprints(", ");
  67                 /*
  68                  * Since the timeout parameter is read by the kernel
  69                  * on entering syscall, it has to be decoded the same way
  70                  * whether the syscall has failed or not.
  71                  */
  72                 temporarily_clear_syserror(tcp);
  73                 print_ts(tcp, tcp->u_arg[4]);
  74                 restore_cleared_syserror(tcp);
  75         }
  76         return 0;
  77 }
  78
  79 #if HAVE_ARCH_TIME32_SYSCALLS
  80 SYS_FUNC(mq_timedreceive_time32)
  81 {
  82         return do_mq_timedreceive(tcp, print_timespec32);
  83 }
  84 #endif
  85
  86 SYS_FUNC(mq_timedreceive_time64)
  87 {
  88         return do_mq_timedreceive(tcp, print_timespec64);
  89 }
  90
  91 SYS_FUNC(mq_notify)
  92 {
  93         printfd(tcp, tcp->u_arg[0]);
  94         tprints(", ");
  95         print_sigevent(tcp, tcp->u_arg[1]);
  96         return RVAL_DECODED;
  97 }
  98
  99 SYS_FUNC(mq_getsetattr)
 100 {
 101         if (entering(tcp)) {
 102                 printfd(tcp, tcp->u_arg[0]);
 103                 tprints(", ");
 104                 printmqattr(tcp, tcp->u_arg[1], true);
 105                 tprints(", ");
 106         } else {
 107                 printmqattr(tcp, tcp->u_arg[2], true);
 108         }
 109         return 0;
 110 }