memio_SetPeerName implicitly assumes that struct sockaddr is the same as...

net/socket/ssl_client_socket_nss.cc

 // Copyright (c) 2006-2009 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.
 
 // This file includes code SSLClientSocketNSS::DoVerifyCertComplete() derived
 // from AuthCertificateCallback() in
 // mozilla/security/manager/ssl/src/nsNSSCallbacks.cpp.
 
 /* ***** BEGIN LICENSE BLOCK *****
  * Version: MPL 1.1/GPL 2.0/LGPL 2.1
@@ skipping 301 matching lines @@
   nss_fd_ = memio_CreateIOLayer(kRecvBufferSize);
   if (nss_fd_ == NULL) {
     return ERR_OUT_OF_MEMORY;  // TODO(port): map NSPR error code.
   }
 
   // Tell NSS who we're connected to
   AddressList peer_address;
   int err = transport_->GetPeerAddress(&peer_address);
   if (err != OK)
     return err;
+
   const struct addrinfo* ai = peer_address.head();
-  memio_SetPeerName(nss_fd_, ai->ai_addr, ai->ai_addrlen);
+
+  PRNetAddr peername;
+  memset(&peername, 0, sizeof(peername));
+  DCHECK_LE(ai->ai_addrlen, sizeof(peername));
+  size_t len = std::min(static_cast<size_t>(ai->ai_addrlen), sizeof(peername));
+  memcpy(&peername, ai->ai_addr, len);
+
+  // Adjust the address family field for BSD, whose sockaddr
+  // structure has a one-byte length and one-byte address family
+  // field at the beginning.  PRNetAddr has a two-byte address
+  // family field at the beginning.
+  peername.raw.family = ai->ai_addr->sa_family;
+
+  memio_SetPeerName(nss_fd_, &peername);
 
   // Grab pointer to buffers
   nss_bufs_ = memio_GetSecret(nss_fd_);
 
   /* Create SSL state machine */
   /* Push SSL onto our fake I/O socket */
   nss_fd_ = SSL_ImportFD(NULL, nss_fd_);
   if (nss_fd_ == NULL) {
       return ERR_OUT_OF_MEMORY;  // TODO(port): map NSPR/NSS error code.
   }
@@ skipping 1074 matching lines @@
   }
   PRErrorCode prerr = PR_GetError();
   if (prerr == PR_WOULD_BLOCK_ERROR) {
     return ERR_IO_PENDING;
   }
   LeaveFunction("");
   return MapNSPRError(prerr);
 }
 
 }  // namespace net