Landing Recent QUIC changes until 5/14/2016 02:25:25 UTC

net/tools/quic/quic_packet_printer_bin.cc

 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 // clang-format off
 
 // Dumps out the decryptable contents of a QUIC packet in a human-readable way.
 // If the packet is null encrypted, this will dump full packet contents.
 // Otherwise it will dump the public header, and fail with an error that the
 // packet is undecryptable.
 //
-// Usage: quic_packet_printer [server|client] [hex dump of packet]
+// Usage: quic_packet_printer server|client <hex dump of packet>
 //
 // Example input:
 // quic_packet_printer server 0c6b810308320f24c004a939a38a2e3fd6ca589917f200400
 // 201b80b0100501c0700060003023d0000001c00556e656e637279707465642073747265616d2
 // 064617461207365656e
 //
 // Example output:
 // OnPacket
 // OnUnauthenticatedPublicHeader
 // OnUnauthenticatedHeader: { connection_id: 13845207862000976235,
@@ skipping 132 matching lines @@
   QuicFramer* framer_;  // Unowned.
 };
 
 }  // namespace net
 
 int main(int argc, char* argv[]) {
   base::CommandLine::Init(argc, argv);
   base::CommandLine* line = base::CommandLine::ForCurrentProcess();
   const base::CommandLine::StringVector& args = line->GetArgs();
 
-  if (args.size() != 2) {
-    cerr << "Usage: " << argv[0] << " client|server <hex>\n";
+  if (args.size() != 3) {
+    cerr << "Missing argument " << argc << ". (Usage: " << argv[0]
+         << " client|server <hex>\n";
     return 1;
   }
 
   if (line->HasSwitch("quic_version")) {
     FLAGS_quic_version = line->GetSwitchValueASCII("quic_version");
   }
 
   string perspective_string = ArgToString(args[0]);
   net::Perspective perspective;
   if (perspective_string == "client") {
@@ skipping 15 matching lines @@
       if (net::QuicVersionToString(version) == FLAGS_quic_version) {
         framer.set_version(version);
       }
     }
   }
   net::QuicPacketPrinter visitor(&framer);
   framer.set_visitor(&visitor);
   net::QuicEncryptedPacket encrypted(hex.c_str(), hex.length());
   return framer.ProcessPacket(encrypted);
 }