implement logout command

ncdc/CMakeLists.txt

@@ -19,6 +19,7 @@ SET(SOURCES
   "src/input.c"
   "src/keycodes.c"
   "src/login.c"
+  "src/logout.c"
   "src/mainwindow.c"
   "src/msg.c"
   "src/ncdc.c"

ncdc/include/ncdc/cmds.h

@@ -26,7 +26,8 @@ ncdc_commands_t *ncdc_find_cmd(ncdc_commands_t *cmds, wchar_t const *name);
 
 bool ncdc_cmd_friends(ncdc_mainwindow_t n, size_t ac, wchar_t **av);
 bool ncdc_cmd_login(ncdc_mainwindow_t n, size_t ac, wchar_t **av);
-bool ncdc_cmd_quit(ncdc_mainwindow_t n, size_t ac, wchar_t **av);
+bool ncdc_cmd_logout(ncdc_mainwindow_t n, size_t ac, wchar_t **av);
 bool ncdc_cmd_msg(ncdc_mainwindow_t n, size_t ac, wchar_t **av);
+bool ncdc_cmd_quit(ncdc_mainwindow_t n, size_t ac, wchar_t **av);
 
 #endif

ncdc/src/cmds.c

@@ -4,6 +4,7 @@ ncdc_commands_t cmds[] = {
     { L"/friend",  ncdc_cmd_friends },
     { L"/friends", ncdc_cmd_friends },
     { L"/login",   ncdc_cmd_login },
+    { L"/logout",  ncdc_cmd_logout },
     { L"/msg",     ncdc_cmd_msg },
     { L"/quit",    ncdc_cmd_quit },
     { NULL, NULL }

ncdc/src/login.c

@@ -39,7 +39,7 @@ bool ncdc_cmd_login(ncdc_mainwindow_t n, size_t ac, wchar_t **av)
         goto cleanup;
     }
 
-    current_account = acc;
+    current_account = dc_ref(acc);
     LOG(n, L"login: %ls: authentication successful", av[1]);
     ret = true;
 

ncdc/src/logout.c

@@ -0,0 +1,28 @@
+#include <ncdc/cmds.h>
+#include <ncdc/ncdc.h>
+#include <ncdc/config.h>
+
+bool ncdc_cmd_logout(ncdc_mainwindow_t n, size_t ac, wchar_t **av)
+{
+    bool ret = false;
+
+    goto_if_true(current_account == NULL ||
+                 !dc_account_has_token(current_account), error);
+
+    ret = dc_api_logout(api, current_account);
+    if (!ret) {
+        LOG(n, L"logout: failed to log out the current account");
+        goto error;
+    }
+
+    g_hash_table_remove(accounts, dc_account_fullname(current_account));
+
+    dc_unref(current_account);
+    current_account = NULL;
+
+    LOG(n, L"logout: successfully logged out");
+
+error:
+
+    return ret;
+}