+ sprintf(temp,"/sys/class/net/%s/address",card);
+ if( (fp = fopen(temp, "r")) == NULL ) {
+ fprintf(flog,"Couldn't open: %s\n",temp);
+ return NULL;
+ }
+ fgets(mac, 18, fp);
+ strtok(mac,"\n");
+ fclose(fp);
+ strcpy(g_temp, mac);
+ return g_temp;
+}
+
+char* find_nic4mac(char *findmac) {
+ DIR *dir;
+ struct dirent *dirzeiger;
+ char temp[STRING_SIZE], temp2[STRING_SIZE];
+
+ if((dir=opendir(SYSDIR)) == NULL) {
+ fprintf(flog,"Fehler bei opendir (find_name4nic) ...\n");
+ return NULL;
+ }
+
+ sprintf(temp, "");
+ while((dirzeiger=readdir(dir)) != NULL) {
+ if(*((*dirzeiger).d_name) != '.' & strcmp(((*dirzeiger).d_name), "lo") != 0) {
+ sprintf(temp2, "%s", readmac((*dirzeiger).d_name) );
+ if (strcmp(findmac, temp2) == 0) {
+ sprintf(temp,"%s", (*dirzeiger).d_name);
+ break;
+ }
+ }
+ }
+
+ if(closedir(dir) == -1) fprintf(flog,"Fehler beim schliessen von %s\n", SYSDIR);
+ strcpy(g_temp, temp);
+ return g_temp;
+}
+
+int nic_shutdown(char *nic) {
+ char temp[STRING_SIZE];
+
+ sprintf(temp,"ip link set %s down", nic);
+ mysystem(temp);
+}
+
+int nic_startup(char *nic) {
+ char temp[STRING_SIZE];
+
+ sprintf(temp,"ip link set %s up", nic);
+ mysystem(temp);
+
+}
+
+int rename_nics(void) {
+ int i, j, k;
+ int fnics = scan_network_cards();
+ char nic2find[STRING_SIZE], temp[STRING_SIZE];
+
+ for(i=0; i<4; i++)
+ if (strcmp(knics[i].macaddr, ""))
+ for(j=0; j<fnics; j++)
+ if(strcmp(knics[i].macaddr, nics[j].macaddr) == 0) {
+ sprintf(nic2find,"%s0",lcolourcard[i]);
+ if(strcmp(nic2find, nics[j].nic)) {
+ if(is_interface_up(nics[j].nic)) {
+ nic_shutdown(nics[j].nic);
+ }
+ sprintf(temp,SYSDIR "/%s", nic2find);
+ if(fmt_exists(temp)) {
+ for(k=0; k<fnics; k++)
+ if (strcmp(nics[k].nic, nic2find) == 0 ) {
+ if(is_interface_up(nics[k].nic)) {
+ nic_shutdown(nics[k].nic);
+ }
+ sprintf(temp,"dummy%i",k);
+ if (rename_device(nics[k].nic, temp)) strcpy(nics[k].nic, temp);
+ }
+ }
+ if (rename_device(nics[j].nic, nic2find)) strcpy(nics[j].nic, nic2find);
+ }
+ }
+}
+
+int create_udev(void)
+{