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

   1 /*
   2  * Copyright (c) 2015-2018 The strace developers.
   3  * All rights reserved.
   4  *
   5  * SPDX-License-Identifier: LGPL-2.1-or-later
   6  */
   7
   8 #include "defs.h"
   9 #include <netinet/in.h>
  10
  11 #ifdef MCAST_JOIN_GROUP
  12
  13 # include DEF_MPERS_TYPE(struct_group_req)
  14 typedef struct group_req struct_group_req;
  15
  16 #endif /* MCAST_JOIN_GROUP */
  17
  18 #include MPERS_DEFS
  19
  20 #ifdef MCAST_JOIN_GROUP
  21
  22 # include "print_fields.h"
  23
  24 MPERS_PRINTER_DECL(void, print_group_req, struct tcb *const tcp,
  25                    const kernel_ulong_t addr, const int len)
  26 {
  27         struct_group_req greq;
  28
  29         if (len < (int) sizeof(greq)) {
  30                 printaddr(addr);
  31         } else if (!umove_or_printaddr(tcp, addr, &greq)) {
  32                 PRINT_FIELD_IFINDEX("{", greq, gr_interface);
  33                 PRINT_FIELD_SOCKADDR(", ", greq, gr_group);
  34                 tprints("}");
  35         }
  36 }
  37
  38 #endif /* MCAST_JOIN_GROUP */