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nl-qdisc-list.c

/*
 * src/nl-qdisc-list.c     List Qdiscs
 *
 *    This library is free software; you can redistribute it and/or
 *    modify it under the terms of the GNU Lesser General Public
 *    License as published by the Free Software Foundation version 2.1
 *    of the License.
 *
 * Copyright (c) 2003-2009 Thomas Graf <tgraf@suug.ch>
 */

#include <netlink/cli/utils.h>
#include <netlink/cli/qdisc.h>
#include <netlink/cli/link.h>

static int quiet = 0;

static void print_usage(void)
{
      printf(
      "Usage: nl-qdisc-list [OPTION]... [QDISC]\n"
      "\n"
      "Options\n"
      " -f, --format=TYPE     Output format { brief | details | stats }\n"
      " -h, --help            Show this help\n"
      " -v, --version         Show versioning information\n"
      "\n"
      "QDisc Options\n"
      " -d, --dev=DEV         Device the qdisc is attached to\n"
      " -p, --parent=HANDLE   Identifier of parent qdisc\n"
      " -H, --handle=HANDLE   Identifier\n"
      " -k, --kind=NAME       Kind of qdisc (e.g. pfifo_fast)\n"
      );
      exit(0);
}

int main(int argc, char *argv[])
{
      struct nl_sock *sock;
      struct rtnl_qdisc *qdisc;
      struct nl_cache *link_cache, *qdisc_cache;
      struct nl_dump_params params = {
            .dp_type = NL_DUMP_LINE,
            .dp_fd = stdout,
      };
 
      sock = nl_cli_alloc_socket();
      nl_cli_connect(sock, NETLINK_ROUTE);
      link_cache = nl_cli_link_alloc_cache(sock);
      qdisc_cache = nl_cli_qdisc_alloc_cache(sock);
      qdisc = nl_cli_qdisc_alloc();
 
      for (;;) {
            int c, optidx = 0;
            enum {
                  ARG_YES = 257,
            };
            static struct option long_opts[] = {
                  { "format", 1, 0, 'f' },
                  { "quiet", 0, 0, 'q' },
                  { "help", 0, 0, 'h' },
                  { "version", 0, 0, 'v' },
                  { "dev", 1, 0, 'd' },
                  { "parent", 1, 0, 'p' },
                  { "handle", 1, 0, 'H' },
                  { "kind", 1, 0, 'k' },
                  { 0, 0, 0, 0 }
            };
      
            c = getopt_long(argc, argv, "f:qhvd:p:H:k:",
                        long_opts, &optidx);
            if (c == -1)
                  break;

            switch (c) {
            case 'f': params.dp_type = nl_cli_parse_dumptype(optarg); break;
            case 'q': quiet = 1; break;
            case 'h': print_usage(); break;
            case 'v': nl_cli_print_version(); break;
            case 'd': nl_cli_qdisc_parse_dev(qdisc, link_cache, optarg); break;
            case 'p': nl_cli_qdisc_parse_parent(qdisc, optarg); break;
            case 'H': nl_cli_qdisc_parse_handle(qdisc, optarg); break;
            case 'k': nl_cli_qdisc_parse_kind(qdisc, optarg); break;
            }
      }

      nl_cache_dump_filter(qdisc_cache, &params, OBJ_CAST(qdisc));

      return 0;
}

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