src/config.c

   1 #include <unistd.h>
   2 #include <fcntl.h>
   3 #include <gio/gio.h>
   4
   5 static GKeyFile *config;
   6 static int config_descr;
   7
   8 static gchar *data_dir;
   9
  10 static int hostnamed_ispect_xml_descr, hostnamed_dbus_xml_descr;
  11 static int localed_ispect_xml_descr, localed_dbus_xml_descr;
  12 static int timedated_ispect_xml_descr, timedated_dbus_xml_descr;
  13 static int logind_ispect_xml_descr, logind_dbus_xml_descr;
  14
  15 /*TODO depending on builtin xml flag, these should be matched to checksums */
  16 static gchar **hostnamed_ispect_xml, hostnamed_dbus_xml;
  17 static gchar **localed_ispect_xml, localed_dbus_xml;
  18 static gchar **timedated_ispect_xml, timedated_dbus_xml;
  19 static gchar **logind_ispect_xml, logind_dbus_xml;
  20
  21 static const gchar *CONFIG_KEYS[] = {
  22         "PrettyHostname",
  23         "IconName",
  24         "ChassisType"
  25 };
  26
  27 /* NULL if key doesn't exist */
  28 gchar *get_option(gchar *key, gchar *group) {
  29
  30         if(!group)
  31                 group = "default";
  32
  33         return g_key_file_get_string(config, group, key, NULL);
  34 }
  35
  36 /* false if key isn't already defined or value is invalid */
  37 gboolean set_option(gchar *key, gchar *value, gchar *group) {
  38
  39         if(!group)
  40                 group = "default";
  41
  42         if(!g_key_file_get_string(config, group, key, NULL))
  43                 return FALSE;
  44
  45         //TODO safteycheck value
  46         g_key_file_set_string(config, group, key, value);
  47         return TRUE;
  48 }
  49
  50 /* initial load/check */
  51 gboolean config_init() {
  52
  53         if(config)
  54                 return TRUE; //already init'd
  55
  56         config = g_key_file_new();
  57
  58         const gchar *config_path;
  59         GStatBuf *config_lstat;
  60
  61         config_path = "/etc/systemd_compat.conf";
  62
  63         /* does conf exist? */
  64         if(g_lstat(config_path, config_lstat)) {
  65
  66                 /* if not, can we write it? */
  67                 if(g_access("/etc/", W_OK)) {
  68                         g_printf("%s\n", "no write permissions for /etc/! exiting..");
  69                         return FALSE;
  70                 }
  71
  72                 config_descr = g_open(config_path, O_CREAT, 644);
  73
  74                 gchar *posix_hostname;
  75                 posix_hostname = g_malloc(255);
  76
  77                 gethostname(posix_hostname, 255);
  78
  79                 g_key_file_set_string(config, "hostnamed", "Hostname", posix_hostname);
  80                 g_key_file_set_string(config, "hostnamed", "PrettyHostname", "");
  81                 g_key_file_set_string(config, "hostnamed", "IconName", "Computer");
  82                 g_key_file_set_string(config, "hostnamed", "ChassisType", "laptop"); //TODO set these correctly
  83
  84                 if(!g_key_file_save_to_file(config, config_path, NULL)) {
  85                         g_printf("failed to write config to %s!\n", config_path);
  86                         g_free(posix_hostname);
  87                         return FALSE;
  88                 }
  89
  90                 g_printf("wrote config to %s\n", config_path);
  91
  92                 g_free(posix_hostname);
  93
  94                 return TRUE;
  95
  96         /* it does exist, read it */
  97         } else {
  98
  99                 if(!g_access(config_path, W_OK)) {
 100                         g_printf("%s\n", "no write permissions for /etc/! exiting..");
 101                         return FALSE;
 102                 } else if(g_key_file_load_from_file(config, config_path, G_KEY_FILE_KEEP_COMMENTS, NULL)) {
 103                         config_descr = g_open(config_path, O_RDWR, 644);
 104                         return TRUE;
 105                 }
 106
 107                 g_printf("could not read config at %s! exiting..", config_path);
 108                 return FALSE;
 109         }
 110 }
 111
 112 gboolean init_xml() {
 113
 114         gchar **data_dir_prefix;
 115
 116         data_dir_prefix = g_get_system_data_dirs();
 117         data_dir = g_strconcat(data_dir_prefix[0], "systemd_compat", NULL);
 118
 119         GStatBuf *xml_lstat;
 120
 121         /* does xml dir exist? */
 122         if(g_lstat(data_dir, xml_lstat)) {
 123
 124                 /* if not, can we write it? */
 125                 if(g_access(data_dir_prefix[0], W_OK)) {
 126                         g_printf("no write permissions for %s! exiting...\n", data_dir_prefix[0]);
 127                         return FALSE;
 128                 }
 129
 130                 g_printf("creating xml data directory %s...\n", data_dir);
 131                 if(g_mkdir(data_dir, 644) {
 132                         g_printf("failed to create dir %s...\n", data_dir);
 133                         return FALSE;
 134                 }
 135
 136                 set_xml_descriptors();
 137 //LEFTOFF
 138
 139                 gchar *posix_hostname;
 140                 posix_hostname = g_malloc(255);
 141
 142                 gethostname(posix_hostname, 255);
 143
 144                 g_key_file_set_string(config, "hostnamed", "Hostname", posix_hostname);
 145                 g_key_file_set_string(config, "hostnamed", "PrettyHostname", "");
 146                 g_key_file_set_string(config, "hostnamed", "IconName", "Computer");
 147                 g_key_file_set_string(config, "hostnamed", "ChassisType", "laptop"); //TODO set these correctly
 148
 149                 if(!g_key_file_save_to_file(config, config_path, NULL)) {
 150                         g_printf("failed to write config to %s!\n", config_path);
 151                         g_free(posix_hostname);
 152                         return FALSE;
 153                 }
 154
 155                 g_printf("wrote config to %s\n", config_path);
 156
 157                 g_free(posix_hostname);
 158
 159                 return TRUE;
 160
 161         /* it does exist, read it */
 162         } else {
 163
 164                 if(!g_access(config_path, W_OK)) {
 165                         g_printf("%s\n", "no write permissions for /etc/! exiting..");
 166                         return FALSE;
 167                 } else if(g_key_file_load_from_file(config, config_path, G_KEY_FILE_KEEP_COMMENTS, NULL)) {
 168                         config_descr = g_open(config_path, O_RDWR, 644);
 169                         return TRUE;
 170                 }
 171
 172                 g_printf("could not read config at %s! exiting..", config_path);
 173                 return FALSE;
 174         }
 175
 176
 177         return TRUE;
 178 }
 179
 180 static void set_xml_descriptors() {
 181
 182 }
 183
 184 void clean_config() {
 185
 186         //TODO g_ptr_array all of this
 187         g_free(config);
 188         g_free(data_dir);
 189         g_close(config_descr, NULL);
 190 }