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 <stdlib.h>
  25 #include <unistd.h>
  26
  27 #include <systemd/sd-bus.h>
  28
  29 #include "command.h"
  30 #include "port.h"
  31 #include "zone.h"
  32
  33 static int networkctl_status(sd_bus* bus, int argc, char* argv[]) {
  34         printf("%s called\n", __FUNCTION__);
  35         return 0;
  36 }
  37
  38 static int networkctl_main(sd_bus* bus, int argc, char* argv[]) {
  39         static const struct command commands[] = {
  40                 { "port",   0, networkctl_port },
  41                 { "status", 0, networkctl_status },
  42                 { "zone",   0, networkctl_zone },
  43                 { NULL },
  44         };
  45
  46         return command_dispatch(bus, commands, argc, argv);
  47 }
  48
  49 static void version(void) {
  50         printf("networkctl %s\n", PACKAGE_VERSION);
  51
  52         exit(0);
  53 }
  54
  55 static void help(void) {
  56         printf(
  57                 "%s [OPTIONS...] COMMAND\n\n"
  58                 "Options:\n"
  59                 "  -h --help          Show help\n"
  60                 "     --version       Show version\n",
  61                 program_invocation_short_name
  62         );
  63
  64         exit(0);
  65 }
  66
  67 static int parse_argv(int argc, char* argv[]) {
  68         enum {
  69                 ARG_VERSION,
  70         };
  71
  72         static const struct option options[] = {
  73                 { "help",    no_argument, NULL, 'h' },
  74                 { "version", no_argument, NULL, ARG_VERSION },
  75                 { NULL },
  76         };
  77         int c;
  78
  79         for (;;) {
  80                 c = getopt_long(argc, argv, "h", options, NULL);
  81                 if (c < 0)
  82                         break;
  83
  84                 switch (c) {
  85                         case 'h':
  86                                 help();
  87
  88                         case ARG_VERSION:
  89                                 version();
  90
  91                         case '?':
  92                                 return -EINVAL;
  93
  94                         default:
  95                                 break;
  96                 }
  97         }
  98
  99         return 0;
 100 }
 101
 102 int main(int argc, char* argv[]) {
 103         sd_bus* bus = NULL;
 104         int r;
 105
 106         // Parse command line arguments
 107         r = parse_argv(argc, argv);
 108         if (r)
 109                 goto ERROR;
 110
 111         // Connect to system bus
 112         r = sd_bus_open_system(&bus);
 113         if (r < 0) {
 114                 fprintf(stderr, "Could not connect to system bus: %m\n");
 115                 goto ERROR;
 116         }
 117
 118         // Run a command
 119         r = networkctl_main(bus, argc - 1, argv + 1);
 120
 121 ERROR:
 122         if (bus)
 123                 sd_bus_flush_close_unref(bus);
 124
 125         return r;
 126 }