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 "zone.h"
  30
  31 static int networkctl_status(sd_bus* bus, int argc, char* argv[]) {
  32         printf("%s called\n", __FUNCTION__);
  33         return 0;
  34 }
  35
  36 static int networkctl_main(sd_bus* bus, int argc, char* argv[]) {
  37         static const struct command commands[] = {
  38                 { "status", 0, networkctl_status },
  39                 { "zone",   0, networkctl_zone },
  40                 { NULL },
  41         };
  42
  43         return command_dispatch(bus, commands, argc, argv);
  44 }
  45
  46 static int version(void) {
  47         printf("networkctl %s\n", PACKAGE_VERSION);
  48
  49         return 0;
  50 }
  51
  52 static int help(void) {
  53         printf(
  54                 "%s [OPTIONS...] COMMAND\n\n"
  55                 "Options:\n"
  56                 "  -h --help          Show help\n"
  57                 "     --version       Show version\n",
  58                 program_invocation_short_name
  59         );
  60
  61         return 0;
  62 }
  63
  64 static int parse_argv(int argc, char* argv[]) {
  65         enum {
  66                 ARG_VERSION,
  67         };
  68
  69         static const struct option options[] = {
  70                 { "help",    no_argument, NULL, 'h' },
  71                 { "version", no_argument, NULL, ARG_VERSION },
  72                 { NULL },
  73         };
  74         int c;
  75
  76         for (;;) {
  77                 c = getopt_long(argc, argv, "h", options, NULL);
  78                 if (c < 0)
  79                         break;
  80
  81                 switch (c) {
  82                         case 'h':
  83                                 return help();
  84
  85                         case ARG_VERSION:
  86                                 return version();
  87
  88                         case '?':
  89                                 return -EINVAL;
  90
  91                         default:
  92                                 break;
  93                 }
  94         }
  95
  96         return 0;
  97 }
  98
  99 int main(int argc, char* argv[]) {
 100         sd_bus* bus = NULL;
 101         int r;
 102
 103         // Parse command line arguments
 104         r = parse_argv(argc, argv);
 105         if (r)
 106                 goto ERROR;
 107
 108         // Connect to system bus
 109         r = sd_bus_open_system(&bus);
 110         if (r < 0) {
 111                 fprintf(stderr, "Could not connect to system bus: %m\n");
 112                 goto ERROR;
 113         }
 114
 115         // Run a command
 116         r = networkctl_main(bus, argc, argv);
 117
 118 ERROR:
 119         if (bus)
 120                 sd_bus_flush_close_unref(bus);
 121
 122         return r;
 123 }