Merge branch 'ignore-title-and-app-id-report-queries'

Related to #1894

CHANGELOG.md

@@ -60,6 +60,13 @@
 ## Unreleased
 ### Added
 ### Changed
+
+* The `CSI 21 t` (report window title) and `OSC 176 ?` (report app-id)
+  escape sequences are now ignored ([#1894][1894]).
+
+[1894]: https://codeberg.org/dnkl/foot/issues/1894
+
+
 ### Deprecated
 ### Removed
 ### Fixed

csi.c

@@ -1354,10 +1354,14 @@ csi_dispatch(struct terminal *term, uint8_t final)
             }
 
             case 21: {
+#if 0  /* Disabled for now, see #1894 */
                 char reply[3 + strlen(term->window_title) + 2 + 1];
                 int chars = xsnprintf(
                     reply, sizeof(reply), "\033]l%s\033\\", term->window_title);
                 term_to_slave(term, reply, chars);
+#else
+                LOG_WARN("CSI 21 t (report window title) ignored");
+#endif
                 break;
             }
 

doc/foot-ctlseqs.7.scd

@@ -391,9 +391,6 @@ manipulation sequences. The generic format is:
 |  20
 :  -
 :  Report icon label.
-|  21
-:  -
-:  Report window title.
 |  22
 :  -
 :  Push window title+icon.

osc.c

@@ -1498,6 +1498,7 @@ osc_dispatch(struct terminal *term)
 
     case 176:
         if (string[0] == '?' && string[1] == '\0') {
+#if 0  /* Disabled for now, see #1894 */
             const char *terminator = term->vt.osc.bel ? "\a" : "\033\\";
             char *reply = xasprintf(
                 "\033]176;%s%s",
@@ -1506,6 +1507,9 @@ osc_dispatch(struct terminal *term)
 
             term_to_slave(term, reply, strlen(reply));
             free(reply);
+#else
+            LOG_WARN("OSC-176 app-id query ignored");
+#endif
             break;
         }