From cc9083e22039dc40aa90b5d0a153bc8d09e3317c Mon Sep 17 00:00:00 2001
From: Johannes Altmanninger <aclopte@gmail.com>
Date: Mon, 6 Jan 2025 21:09:41 +0100
Subject: [PATCH] Add some logging for XTGETTCAP

---
 src/input_common.rs | 13 +++++++++++--
 src/reader.rs       |  8 ++++++++
 2 files changed, 19 insertions(+), 2 deletions(-)

diff --git a/src/input_common.rs b/src/input_common.rs
index f1abc1dd9..6cae42301 100644
--- a/src/input_common.rs
+++ b/src/input_common.rs
@@ -1277,11 +1277,20 @@ pub trait InputEventQueuer {
         }
         buffer.pop();
         buffer.pop();
+        // \e P 1 r + Pn ST
+        // \e P 0 r + msg ST
+        let buffer = &buffer[5..];
         if !success {
+            FLOG!(
+                reader,
+                format!(
+                    "Received XTGETTCAP failure response: {}",
+                    str2wcstring(&parse_hex(buffer)?),
+                )
+            );
             return None;
         }
-        // \e P 1 r + Pn ST
-        let mut buffer = buffer[5..].splitn(2, |&c| c == b'=');
+        let mut buffer = buffer.splitn(2, |&c| c == b'=');
         let key = buffer.next().unwrap();
         let value = buffer.next()?;
         let key = parse_hex(key)?;
diff --git a/src/reader.rs b/src/reader.rs
index caa2ee00c..fb7b405d0 100644
--- a/src/reader.rs
+++ b/src/reader.rs
@@ -2429,6 +2429,14 @@ impl<'a> Reader<'a> {
 }
 
 fn xtgettcap(out: &mut impl Write, cap: &str) {
+    FLOG!(
+        reader,
+        format!(
+            "Sending XTGETTCAP request for {}: {:?}",
+            cap,
+            format!("\x1bP+q{}\x1b\\", DisplayAsHex(cap))
+        )
+    );
     let _ = write!(out, "\x1bP+q{}\x1b\\", DisplayAsHex(cap));
 }