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 #include <string.h>
  22
  23 #include <glib/gprintf.h>
  24
  25 #include "hostnamed-gen.h"
  26
  27 GPtrArray *hostnamed_freeable;
  28 Hostname1 *hostnamed_interf;
  29
  30 /* --- begin method/property/signal code --- */
  31
  32 static gboolean
  33 on_handle_set_hostname(Hostname1 *hn1_passed_interf,
  34                        GDBusMethodInvocation *invoc,
  35                        const gchar *greet,
  36                        gpointer data) {
  37     return FALSE;
  38 }
  39
  40 static gboolean
  41 on_handle_set_static_hostname(Hostname1 *hn1_passed_interf,
  42                               GDBusMethodInvocation *invoc,
  43                               const gchar *greet,
  44                               gpointer data) {
  45     return FALSE;
  46 }
  47
  48 static gboolean
  49 on_handle_set_pretty_hostname(Hostname1 *hn1_passed_interf,
  50                               GDBusMethodInvocation *invoc,
  51                               const gchar *greet,
  52                               gpointer data) {
  53     return FALSE;
  54 }
  55
  56 static gboolean
  57 on_handle_set_chassis(Hostname1 *hn1_passed_interf,
  58                       GDBusMethodInvocation *invoc,
  59                       const gchar *greet,
  60                       gpointer data) {
  61     return FALSE;
  62 }
  63
  64 static gboolean
  65 on_handle_set_icon_name(Hostname1 *hn1_passed_interf,
  66                         GDBusMethodInvocation *invoc,
  67                         const gchar *greet,
  68                         gpointer data) {
  69     return FALSE;
  70 }
  71
  72 /* note: all hostnamed/hostname1's properties are read-only,
  73  * and do not need set_ functions, gdbus-codegen realized
  74  * this from the XML and handled the to-be error of trying
  75  * to set a read-only property's value
  76  */
  77
  78 const gchar *
  79 our_get_hostname() {
  80
  81         gchar *hostname_buf, *ret;
  82         size_t hostname_divider;
  83
  84         hostname_buf = (gchar*) g_malloc0(MAXHOSTNAMELEN);
  85         ret          = (gchar*) g_malloc0(MAXHOSTNAMELEN);
  86         g_ptr_array_add(hostnamed_freeable, hostname_buf);
  87         g_ptr_array_add(hostnamed_freeable, ret);
  88
  89         if(gethostname(hostname_buf, MAXHOSTNAMELEN))
  90                 return "";
  91
  92         hostname_divider = strcspn(hostname_buf, ".");
  93
  94         return strncpy(ret, hostname_buf, hostname_divider);
  95 }
  96
  97 const gchar *
  98 our_get_static_hostname() {
  99
 100     return "TODO";
 101 }
 102
 103 const gchar *
 104 our_get_pretty_hostname() {
 105
 106     return "TODO";
 107 }
 108
 109 const gchar *
 110 our_get_chassis() {
 111
 112     return "TODO";
 113 }
 114
 115 const gchar *
 116 our_get_icon_name() {
 117
 118     return "TODO";
 119 }
 120
 121 const gchar *
 122 our_get_kernel_name() {
 123
 124     return "TODO";
 125 }
 126
 127 const gchar *
 128 our_get_kernel_version() {
 129
 130     return "TODO";
 131 }
 132
 133 const gchar *
 134 our_get_kernel_release() {
 135
 136     return "TODO";
 137 }
 138
 139 const gchar *
 140 our_get_os_cpename() {
 141
 142     return "TODO";
 143 }
 144
 145 const gchar *
 146 our_get_os_pretty_name() {
 147
 148     return "TODO";
 149 }
 150
 151 /* --- end method/property/signal code, begin bus/name handlers --- */
 152
 153 static void hostnamed_on_bus_acquired(GDBusConnection *conn,
 154                             const gchar *name,
 155                             gpointer user_data) {
 156
 157     g_print("got bus, name: %s\n", name);
 158
 159 }
 160
 161 static void hostnamed_on_name_acquired(GDBusConnection *conn,
 162                                            const gchar *name,
 163                                        gpointer user_data) {
 164
 165     g_print("got '%s' on system bus\n", name);
 166
 167     hostnamed_interf = hostname1_skeleton_new();
 168
 169     /* attach function pointers to generated struct's method handlers */
 170     g_signal_connect(hostnamed_interf, "handle-set-hostname", G_CALLBACK(on_handle_set_hostname), NULL);
 171     g_signal_connect(hostnamed_interf, "handle-set-static-hostname", G_CALLBACK(on_handle_set_static_hostname), NULL);
 172     g_signal_connect(hostnamed_interf, "handle-set-pretty-hostname", G_CALLBACK(on_handle_set_pretty_hostname), NULL);
 173     g_signal_connect(hostnamed_interf, "handle-set-chassis", G_CALLBACK(on_handle_set_chassis), NULL);
 174     g_signal_connect(hostnamed_interf, "handle-set-icon-name", G_CALLBACK(on_handle_set_icon_name), NULL);
 175
 176     /* set our properties before export */
 177     hostname1_set_hostname(hostnamed_interf, our_get_hostname());
 178     hostname1_set_static_hostname(hostnamed_interf, our_get_static_hostname());
 179     hostname1_set_pretty_hostname(hostnamed_interf, our_get_pretty_hostname());
 180     hostname1_set_chassis(hostnamed_interf, our_get_chassis());
 181     hostname1_set_icon_name(hostnamed_interf, our_get_icon_name());
 182     hostname1_set_kernel_name(hostnamed_interf, our_get_kernel_name());
 183     hostname1_set_kernel_version(hostnamed_interf, our_get_kernel_version());
 184     hostname1_set_kernel_release(hostnamed_interf, our_get_kernel_release());
 185     hostname1_set_operating_system_cpename(hostnamed_interf, our_get_os_cpename());
 186     hostname1_set_operating_system_pretty_name(hostnamed_interf, our_get_os_pretty_name());
 187
 188     if(!g_dbus_interface_skeleton_export(G_DBUS_INTERFACE_SKELETON(hostnamed_interf),
 189                                          conn,
 190                                          "/org/freedesktop/hostname1",
 191                                          NULL)) {
 192
 193         g_printf("Failed to export Hostname1's interface!");
 194     }
 195
 196 }
 197
 198 /* --- end bus/name handlers, begin misc functions --- */
 199
 200 /* free()'s */
 201 void hostnamed_mem_clean() {
 202
 203     g_ptr_array_foreach(hostnamed_freeable, (GFunc) g_free, NULL);
 204         g_ptr_array_free(hostnamed_freeable, TRUE);
 205 }
 206
 207 static void hostnamed_on_name_lost(GDBusConnection *conn,
 208                                    const gchar *name,
 209                                    gpointer user_data) {
 210
 211     g_print("lost name %s, exiting...", name);
 212
 213     hostnamed_mem_clean();
 214     g_dbus_interface_skeleton_unexport(G_DBUS_INTERFACE_SKELETON(hostnamed_interf));
 215
 216 }
 217
 218 int main() {
 219
 220         guint bus_descriptor;
 221         GMainLoop *hostnamed_loop;
 222
 223         hostnamed_loop = g_main_loop_new(NULL, TRUE);
 224         hostnamed_freeable = g_ptr_array_new();
 225
 226          bus_descriptor = g_bus_own_name(G_BUS_TYPE_SYSTEM,
 227                                     "org.freedesktop.hostname1",
 228                                     G_BUS_NAME_OWNER_FLAGS_NONE,
 229                                     hostnamed_on_bus_acquired,
 230                                     hostnamed_on_name_acquired,
 231                                     hostnamed_on_name_lost,
 232                                     NULL,
 233                                     NULL);
 234
 235         g_main_loop_run(hostnamed_loop);
 236         g_main_loop_unref(hostnamed_loop);
 237
 238         g_bus_unown_name(bus_descriptor);
 239
 240         hostnamed_mem_clean();
 241
 242         return 0;
 243 }
 244
 245 /* TODO figure out DMI variables on obsd */
 246 /*static gchar *guess_icon_name() {
 247
 248     gchar *filebuf = NULL;
 249     gchar *ret = NULL;
 250
 251     #if defined(__i386__) || defined(__x86_64__)
 252
 253        Taken with a few minor changes from systemd's hostnamed.c,
 254        copyright 2011 Lennart Poettering.
 255
 256        See the SMBIOS Specification 2.7.1 section 7.4.1 for
 257        details about the values listed here:
 258
 259        http://www.dmtf.org/sites/default/files/standards/documents/DSP0134_2.7.1.pdf
 260
 261
 262     if (g_file_get_contents ("/sys/class/dmi/id/chassis_type", &filebuf, NULL, NULL)) {
 263         switch (g_ascii_strtoull (filebuf, NULL, 10)) {
 264         case 0x3:
 265         case 0x4:
 266         case 0x5:
 267         case 0x6:
 268         case 0x7:
 269             ret = g_strdup ("computer-desktop");
 270             goto out;
 271         case 0x9:
 272         case 0xA:
 273         case 0xE:
 274             ret = g_strdup ("computer-laptop");
 275             goto out;
 276         case 0x11:
 277         case 0x17:
 278         case 0x1C:
 279         case 0x1D:
 280             ret = g_strdup ("computer-server");
 281             goto out;
 282         }
 283     }
 284     #endif
 285     ret = g_strdup ("computer");
 286   out:
 287     g_free (filebuf);
 288     return ret;
 289 }*/
 290