src/interfaces/hostnamed/hostnamed.c

   1 /*
   2  * Copyright (c) 2014 Ian Sutton <ian@kremlin.cc>
   3  *
   4  * Permission to use, copy, modify, and distribute this software for any
   5  * purpose with or without fee is hereby granted, provided that the above
   6  * copyright notice and this permission notice appear in all copies.
   7  *
   8  * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
   9  * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
  10  * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
  11  * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
  12  * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
  13  * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
  14  * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
  15  */
  16
  17 #include <unistd.h>
  18 #include <limits.h>
  19
  20 #include <sys/param.h>
  21
  22 #include <glib/gprintf.h>
  23
  24 #include "hostnamed-gen.h"
  25
  26 GPtrArray *hostnamed_freeable;
  27 Hostname1 *hostnamed_interf;
  28
  29 /* --- begin method/property/signal code --- */
  30
  31 static gboolean
  32 on_handle_set_hostname(Hostname1 *hn1_passed_interf,
  33                        GDBusMethodInvocation *invoc,
  34                        const gchar *greet,
  35                        gpointer data) {
  36     return FALSE;
  37 }
  38
  39 static gboolean
  40 on_handle_set_static_hostname(Hostname1 *hn1_passed_interf,
  41                               GDBusMethodInvocation *invoc,
  42                               const gchar *greet,
  43                               gpointer data) {
  44     return FALSE;
  45 }
  46
  47 static gboolean
  48 on_handle_set_pretty_hostname(Hostname1 *hn1_passed_interf,
  49                               GDBusMethodInvocation *invoc,
  50                               const gchar *greet,
  51                               gpointer data) {
  52     return FALSE;
  53 }
  54
  55 static gboolean
  56 on_handle_set_chassis(Hostname1 *hn1_passed_interf,
  57                       GDBusMethodInvocation *invoc,
  58                       const gchar *greet,
  59                       gpointer data) {
  60     return FALSE;
  61 }
  62
  63 static gboolean
  64 on_handle_set_icon_name(Hostname1 *hn1_passed_interf,
  65                         GDBusMethodInvocation *invoc,
  66                         const gchar *greet,
  67                         gpointer data) {
  68     return FALSE;
  69 }
  70
  71 /* note: all hostnamed/hostname1's properties are read-only,
  72  * and do not need set_ functions, gdbus-codegen realized
  73  * this from the XML and handled the to-be error of trying
  74  * to set a read-only property's value
  75  */
  76
  77 const gchar *
  78 our_get_hostname() {
  79
  80         gchar *hostname_buf;
  81
  82         hostname_buf = (gchar*) g_malloc0(MAXHOSTNAMELEN);
  83         g_ptr_array_add(hostnamed_freeable, hostname_buf);
  84
  85         if(gethostname(hostname_buf, MAXHOSTNAMELEN))
  86                 return "";
  87
  88         return hostname_buf;
  89 }
  90
  91 const gchar *
  92 our_get_static_hostname() {
  93
  94     return "TODO";
  95 }
  96
  97 const gchar *
  98 our_get_pretty_hostname() {
  99
 100     return "TODO";
 101 }
 102
 103 const gchar *
 104 our_get_chassis() {
 105
 106     return "TODO";
 107 }
 108
 109 const gchar *
 110 our_get_icon_name() {
 111
 112     return "TODO";
 113 }
 114
 115 const gchar *
 116 our_get_kernel_name() {
 117
 118     return "TODO";
 119 }
 120
 121 const gchar *
 122 our_get_kernel_version() {
 123
 124     return "TODO";
 125 }
 126
 127 const gchar *
 128 our_get_kernel_release() {
 129
 130     return "TODO";
 131 }
 132
 133 const gchar *
 134 our_get_os_cpename() {
 135
 136     return "TODO";
 137 }
 138
 139 const gchar *
 140 our_get_os_pretty_name() {
 141
 142     return "TODO";
 143 }
 144
 145 /* --- end method/property/signal code, begin bus/name handlers --- */
 146
 147 static void hostnamed_on_bus_acquired(GDBusConnection *conn,
 148                             const gchar *name,
 149                             gpointer user_data) {
 150
 151     g_print("got bus, name: %s\n", name);
 152
 153 }
 154
 155 static void hostnamed_on_name_acquired(GDBusConnection *conn,
 156                                            const gchar *name,
 157                                        gpointer user_data) {
 158
 159     g_print("got '%s' on system bus\n", name);
 160
 161     hostnamed_interf = hostname1_skeleton_new();
 162
 163     /* attach function pointers to generated struct's method handlers */
 164     g_signal_connect(hostnamed_interf, "handle-set-hostname", G_CALLBACK(on_handle_set_hostname), NULL);
 165     g_signal_connect(hostnamed_interf, "handle-set-static-hostname", G_CALLBACK(on_handle_set_static_hostname), NULL);
 166     g_signal_connect(hostnamed_interf, "handle-set-pretty-hostname", G_CALLBACK(on_handle_set_pretty_hostname), NULL);
 167     g_signal_connect(hostnamed_interf, "handle-set-chassis", G_CALLBACK(on_handle_set_chassis), NULL);
 168     g_signal_connect(hostnamed_interf, "handle-set-icon-name", G_CALLBACK(on_handle_set_icon_name), NULL);
 169
 170     /* set our properties before export */
 171     hostname1_set_hostname(hostnamed_interf, our_get_hostname());
 172     hostname1_set_static_hostname(hostnamed_interf, our_get_static_hostname());
 173     hostname1_set_pretty_hostname(hostnamed_interf, our_get_pretty_hostname());
 174     hostname1_set_chassis(hostnamed_interf, our_get_chassis());
 175     hostname1_set_icon_name(hostnamed_interf, our_get_icon_name());
 176     hostname1_set_kernel_name(hostnamed_interf, our_get_kernel_name());
 177     hostname1_set_kernel_version(hostnamed_interf, our_get_kernel_version());
 178     hostname1_set_kernel_release(hostnamed_interf, our_get_kernel_release());
 179     hostname1_set_operating_system_cpename(hostnamed_interf, our_get_os_cpename());
 180     hostname1_set_operating_system_pretty_name(hostnamed_interf, our_get_os_pretty_name());
 181
 182     if(!g_dbus_interface_skeleton_export(G_DBUS_INTERFACE_SKELETON(hostnamed_interf),
 183                                          conn,
 184                                          "/org/freedesktop/hostname1",
 185                                          NULL)) {
 186
 187         g_printf("Failed to export Hostname1's interface!");
 188     }
 189
 190 }
 191
 192 /* --- end bus/name handlers, begin misc functions --- */
 193
 194 /* free()'s */
 195 void hostnamed_mem_clean() {
 196
 197     g_ptr_array_foreach(hostnamed_freeable, (GFunc) g_free, NULL);
 198         g_ptr_array_free(hostnamed_freeable, TRUE);
 199 }
 200
 201 static void hostnamed_on_name_lost(GDBusConnection *conn,
 202                                    const gchar *name,
 203                                    gpointer user_data) {
 204
 205     g_print("lost name %s, exiting...", name);
 206
 207     hostnamed_mem_clean();
 208     g_dbus_interface_skeleton_unexport(G_DBUS_INTERFACE_SKELETON(hostnamed_interf));
 209
 210 }
 211
 212 int main() {
 213
 214         guint bus_descriptor;
 215         GMainLoop *hostnamed_loop;
 216         hostnamed_loop = g_main_loop_new(NULL, TRUE);
 217
 218         /* config stuff here */
 219
 220          bus_descriptor = g_bus_own_name(G_BUS_TYPE_SYSTEM,
 221                                     "org.freedesktop.hostname1",
 222                                     G_BUS_NAME_OWNER_FLAGS_NONE,
 223                                     hostnamed_on_bus_acquired,
 224                                     hostnamed_on_name_acquired,
 225                                     hostnamed_on_name_lost,
 226                                     NULL,
 227                                     NULL);
 228
 229         g_main_loop_run(hostnamed_loop);
 230         g_main_loop_unref(hostnamed_loop);
 231
 232         g_bus_unown_name(bus_descriptor);
 233
 234         hostnamed_mem_clean();
 235
 236         return 0;
 237 }
 238
 239 /* TODO figure out DMI variables on obsd */
 240 /*static gchar *guess_icon_name() {
 241
 242     gchar *filebuf = NULL;
 243     gchar *ret = NULL;
 244
 245     #if defined(__i386__) || defined(__x86_64__)
 246
 247        Taken with a few minor changes from systemd's hostnamed.c,
 248        copyright 2011 Lennart Poettering.
 249
 250        See the SMBIOS Specification 2.7.1 section 7.4.1 for
 251        details about the values listed here:
 252
 253        http://www.dmtf.org/sites/default/files/standards/documents/DSP0134_2.7.1.pdf
 254
 255
 256     if (g_file_get_contents ("/sys/class/dmi/id/chassis_type", &filebuf, NULL, NULL)) {
 257         switch (g_ascii_strtoull (filebuf, NULL, 10)) {
 258         case 0x3:
 259         case 0x4:
 260         case 0x5:
 261         case 0x6:
 262         case 0x7:
 263             ret = g_strdup ("computer-desktop");
 264             goto out;
 265         case 0x9:
 266         case 0xA:
 267         case 0xE:
 268             ret = g_strdup ("computer-laptop");
 269             goto out;
 270         case 0x11:
 271         case 0x17:
 272         case 0x1C:
 273         case 0x1D:
 274             ret = g_strdup ("computer-server");
 275             goto out;
 276         }
 277     }
 278     #endif
 279     ret = g_strdup ("computer");
 280   out:
 281     g_free (filebuf);
 282     return ret;
 283 }*/
 284