From bc79884a9e0c53c16a4d5b1a94d82443a5267b74 Mon Sep 17 00:00:00 2001
From: Alexander Berntsen <alexander@plaimi.net>
Date: Wed, 30 Apr 2014 11:12:22 +0200
Subject: [PATCH] Make all workspaces starting with "__" internal

Workspaces won't work properly if they start with "__", so reserve that
namespace altogether. Disallow renaming workspaces to reserved namespace
and using reserved namespace in configuration.

Fixes #1209.
---
 src/commands.c  | 9 +++++++--
 src/workspace.c | 4 ++++
 2 files changed, 11 insertions(+), 2 deletions(-)

diff --git a/src/commands.c b/src/commands.c
index e1aa063b..2ff3ee1e 100644
--- a/src/commands.c
+++ b/src/commands.c
@@ -483,7 +483,7 @@ void cmd_move_con_to_workspace_back_and_forth(I3_CMD) {
  *
  */
 void cmd_move_con_to_workspace_name(I3_CMD, char *name) {
-    if (strncasecmp(name, "__i3_", strlen("__i3_")) == 0) {
+    if (strncasecmp(name, "__", strlen("__")) == 0) {
         LOG("You cannot switch to the i3 internal workspaces.\n");
         ysuccess(false);
         return;
@@ -998,7 +998,7 @@ void cmd_workspace_back_and_forth(I3_CMD) {
  *
  */
 void cmd_workspace_name(I3_CMD, char *name) {
-    if (strncasecmp(name, "__i3_", strlen("__i3_")) == 0) {
+    if (strncasecmp(name, "__", strlen("__")) == 0) {
         LOG("You cannot switch to the i3 internal workspaces.\n");
         ysuccess(false);
         return;
@@ -1867,6 +1867,11 @@ void cmd_scratchpad_show(I3_CMD) {
  *
  */
 void cmd_rename_workspace(I3_CMD, char *old_name, char *new_name) {
+    if (strncasecmp(new_name, "__", strlen("__")) == 0) {
+        LOG("You cannot switch to the i3 internal workspaces.\n");
+        ysuccess(false);
+        return;
+    }
     if (old_name) {
         LOG("Renaming workspace \"%s\" to \"%s\"\n", old_name, new_name);
     } else {
diff --git a/src/workspace.c b/src/workspace.c
index 670322a9..5f8ec0bc 100644
--- a/src/workspace.c
+++ b/src/workspace.c
@@ -142,6 +142,10 @@ Con *create_workspace_on_output(Output *output, Con *content) {
             continue;
         if (*target == '"')
             target++;
+        if (strncasecmp(target, "__", strlen("__")) == 0) {
+            LOG("Cannot create workspace. '__' is a reserved prefix.\n");
+            continue;
+        }
         FREE(ws->name);
         ws->name = strdup(target);
         if (ws->name[strlen(ws->name)-1] == '"')
-- 
2.39.5