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

   1 /*
   2  * Copyright (c) 2015 Dmitry V. Levin <ldv@altlinux.org>
   3  * Copyright (c) 2015-2018 The strace developers.
   4  * All rights reserved.
   5  *
   6  * SPDX-License-Identifier: LGPL-2.1-or-later
   7  */
   8
   9 #include "defs.h"
  10
  11 SYS_FUNC(sendfile64)
  12 {
  13         if (entering(tcp)) {
  14                 printfd(tcp, tcp->u_arg[0]);
  15                 tprints(", ");
  16                 printfd(tcp, tcp->u_arg[1]);
  17                 tprints(", ");
  18                 if (!printnum_int64(tcp, tcp->u_arg[2], "%" PRIu64)) {
  19                         tprintf(", %" PRI_klu, tcp->u_arg[3]);
  20                         return RVAL_DECODED;
  21                 }
  22         } else {
  23                 if (!syserror(tcp) && tcp->u_rval) {
  24                         tprints(" => ");
  25                         printnum_int64(tcp, tcp->u_arg[2], "%" PRIu64);
  26                 }
  27                 tprintf(", %" PRI_klu, tcp->u_arg[3]);
  28         }
  29
  30         return 0;
  31 }
  32
  33 SYS_FUNC(sendfile)
  34 {
  35         if (entering(tcp)) {
  36                 printfd(tcp, tcp->u_arg[0]);
  37                 tprints(", ");
  38                 printfd(tcp, tcp->u_arg[1]);
  39                 tprints(", ");
  40                 if (!printnum_ulong(tcp, tcp->u_arg[2])
  41                     || !tcp->u_arg[3]) {
  42                         tprintf(", %" PRI_klu, tcp->u_arg[3]);
  43                         return RVAL_DECODED;
  44                 }
  45         } else {
  46                 if (!syserror(tcp) && tcp->u_rval) {
  47                         tprints(" => ");
  48                         printnum_ulong(tcp, tcp->u_arg[2]);
  49                 }
  50                 tprintf(", %" PRI_klu, tcp->u_arg[3]);
  51         }
  52
  53         return 0;
  54 }