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 * nl-list-sockets.c    Pretty-print /proc/net/netlink
 *    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) 2003-2006 Thomas Graf <tgraf@suug.ch>

#include "utils.h"

#define PROC_NETLINK "/proc/net/netlink"

static void print_usage(void)
      fprintf(stderr, "Usage: nl-list-sockets [<file>]\n");

int main(int argc, char *argv[])
      FILE *fd;
      char buf[2048], p[64];

      if (argc > 1 && !strcasecmp(argv[1], "-h"))

      fd = fopen(PROC_NETLINK, "r");
      if (fd == NULL) {
            return -1;

      printf("Address    Family           PID    Groups   rmem   wmem   " \
             "CB         refcnt\n");

      while (fgets(buf, sizeof(buf), fd)) {
            unsigned long sk, cb;
            int ret, proto, pid, rmem, wmem, refcnt;
            uint32_t groups;
            ret = sscanf(buf, "%lx %d %d %08x %d %d %lx %d\n",
                       &sk, &proto, &pid, &groups, &rmem, &wmem,
                       &cb, &refcnt);
            if (ret != 8)
            printf("0x%08lx %-16s %-6d %08x %-6d %-6d 0x%08lx %d\n",
                  sk, nl_nlfamily2str(proto, p, sizeof(p)), pid,
                  groups, rmem, wmem, cb, refcnt);


      return 0;

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