src/networkctl/main.c

   1 /*#############################################################################
   2 #                                                                             #
   3 # IPFire.org - A linux based firewall                                         #
   4 # Copyright (C) 2023 IPFire Network Development Team                          #
   5 #                                                                             #
   6 # This program is free software: you can redistribute it and/or modify        #
   7 # it under the terms of the GNU General Public License as published by        #
   8 # the Free Software Foundation, either version 3 of the License, or           #
   9 # (at your option) any later version.                                         #
  10 #                                                                             #
  11 # This program is distributed in the hope that it will be useful,             #
  12 # but WITHOUT ANY WARRANTY; without even the implied warranty of              #
  13 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the               #
  14 # GNU General Public License for more details.                                #
  15 #                                                                             #
  16 # You should have received a copy of the GNU General Public License           #
  17 # along with this program.  If not, see <http://www.gnu.org/licenses/>.       #
  18 #                                                                             #
  19 #############################################################################*/
  20
  21 #include <errno.h>
  22 #include <getopt.h>
  23 #include <stdio.h>
  24 #include <unistd.h>
  25
  26 #include <systemd/sd-bus.h>
  27
  28 #include "command.h"
  29 #include "port.h"
  30 #include "zone.h"
  31
  32 static int networkctl_status(sd_bus* bus, int argc, char* argv[]) {
  33         printf("%s called\n", __FUNCTION__);
  34         return 0;
  35 }
  36
  37 static int networkctl_main(sd_bus* bus, int argc, char* argv[]) {
  38         static const struct command commands[] = {
  39                 { "port",   0, networkctl_port },
  40                 { "status", 0, networkctl_status },
  41                 { "zone",   0, networkctl_zone },
  42                 { NULL },
  43         };
  44
  45         return command_dispatch(bus, commands, argc, argv);
  46 }
  47
  48 static int version(void) {
  49         printf("networkctl %s\n", PACKAGE_VERSION);
  50
  51         return 0;
  52 }
  53
  54 static int help(void) {
  55         printf(
  56                 "%s [OPTIONS...] COMMAND\n\n"
  57                 "Options:\n"
  58                 "  -h --help          Show help\n"
  59                 "     --version       Show version\n",
  60                 program_invocation_short_name
  61         );
  62
  63         return 0;
  64 }
  65
  66 static int parse_argv(int argc, char* argv[]) {
  67         enum {
  68                 ARG_VERSION,
  69         };
  70
  71         static const struct option options[] = {
  72                 { "help",    no_argument, NULL, 'h' },
  73                 { "version", no_argument, NULL, ARG_VERSION },
  74                 { NULL },
  75         };
  76         int c;
  77
  78         for (;;) {
  79                 c = getopt_long(argc, argv, "h", options, NULL);
  80                 if (c < 0)
  81                         break;
  82
  83                 switch (c) {
  84                         case 'h':
  85                                 return help();
  86
  87                         case ARG_VERSION:
  88                                 return version();
  89
  90                         case '?':
  91                                 return -EINVAL;
  92
  93                         default:
  94                                 break;
  95                 }
  96         }
  97
  98         return 0;
  99 }
 100
 101 int main(int argc, char* argv[]) {
 102         sd_bus* bus = NULL;
 103         int r;
 104
 105         // Parse command line arguments
 106         r = parse_argv(argc, argv);
 107         if (r)
 108                 goto ERROR;
 109
 110         // Connect to system bus
 111         r = sd_bus_open_system(&bus);
 112         if (r < 0) {
 113                 fprintf(stderr, "Could not connect to system bus: %m\n");
 114                 goto ERROR;
 115         }
 116
 117         // Run a command
 118         r = networkctl_main(bus, argc - 1, argv + 1);
 119
 120 ERROR:
 121         if (bus)
 122                 sd_bus_flush_close_unref(bus);
 123
 124         return r;
 125 }