From fa64cc2ac06c4b93bd50a4cc7911dbee39360441 Mon Sep 17 00:00:00 2001
From: Josh Gao <jmgao@fb.com>
Date: Mon, 22 Jan 2024 14:42:37 -0800
Subject: Fix return code of `adb shell` when device disconnects

Bug: https://issuetracker.google.com/issues/321787891
Test: (adb shell sleep 60 && echo this should not echo) & sleep 1; adb tcpip 5555
Change-Id: I25f740bd222263fcb3c501def38977db6af1e0d9
---
 client/commandline.cpp | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/client/commandline.cpp b/client/commandline.cpp
index 781c6d5a..c918950d 100644
--- a/client/commandline.cpp
+++ b/client/commandline.cpp
@@ -288,7 +288,8 @@ static void stdin_raw_restore() {
 #endif
 
 int read_and_dump_protocol(borrowed_fd fd, StandardStreamsCallbackInterface* callback) {
-    int exit_code = 0;
+    // OpenSSH returns 255 on unexpected disconnection.
+    int exit_code = 255;
     std::unique_ptr<ShellProtocol> protocol = std::make_unique<ShellProtocol>(fd);
     if (!protocol) {
       LOG(ERROR) << "failed to allocate memory for ShellProtocol object";
-- 
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