From 90d4b739ab94fded63086de1261e70a3d39ceb1d Mon Sep 17 00:00:00 2001
From: Dan Albert <danalbert@google.com>
Date: Wed, 20 May 2015 18:58:41 -0700
Subject: [PATCH] Add `adb features`.

Shows the features supported by the active adb server.

Change-Id: I4a58a2ca082823c43f7a49e2c62ff80df6426756
---
 adb/adb.cpp         | 7 +++++++
 adb/commandline.cpp | 3 +++
 2 files changed, 10 insertions(+)

diff --git a/adb/adb.cpp b/adb/adb.cpp
index 180954bef..29c948126 100644
--- a/adb/adb.cpp
+++ b/adb/adb.cpp
@@ -956,6 +956,13 @@ int handle_host_request(const char* service, TransportType type,
         return 1;
     }
 
+    if (!strcmp(service, "features")) {
+        SendOkay(reply_fd);
+        SendProtocolString(
+            reply_fd, android::base::Join(supported_features(), '\n'));
+        return 0;
+    }
+
     // remove TCP transport
     if (!strncmp(service, "disconnect:", 11)) {
         const std::string address(service + 11);
diff --git a/adb/commandline.cpp b/adb/commandline.cpp
index 1c5b5bd40..c7b7675dd 100644
--- a/adb/commandline.cpp
+++ b/adb/commandline.cpp
@@ -1460,6 +1460,9 @@ int adb_commandline(int argc, const char **argv) {
         fprintf(stdout, "%s", adb_version().c_str());
         return 0;
     }
+    else if (!strcmp(argv[0], "features")) {
+        return adb_query_command("host:features");
+    }
 
     usage();
     return 1;