- Fix truncation in Socket calls.

runtime/bin/socket_linux.cc

 // Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
 #include "platform/globals.h"
 #if defined(TARGET_OS_LINUX)
 
 #include <errno.h>  // NOLINT
 #include <stdio.h>  // NOLINT
 #include <stdlib.h>  // NOLINT
@@ skipping 76 matching lines @@
   }
   return Socket::Connect(fd, addr, port);
 }
 
 
 intptr_t Socket::Available(intptr_t fd) {
   return FDUtils::AvailableBytes(fd);
 }
 
 
-int Socket::Read(intptr_t fd, void* buffer, intptr_t num_bytes) {
+intptr_t Socket::Read(intptr_t fd, void* buffer, intptr_t num_bytes) {
   ASSERT(fd >= 0);
   ssize_t read_bytes = TEMP_FAILURE_RETRY(read(fd, buffer, num_bytes));
   ASSERT(EAGAIN == EWOULDBLOCK);
   if (read_bytes == -1 && errno == EWOULDBLOCK) {
     // If the read would block we need to retry and therefore return 0
     // as the number of bytes written.
     read_bytes = 0;
   }
   return read_bytes;
 }
 
 
-int Socket::RecvFrom(intptr_t fd, void* buffer, intptr_t num_bytes,
+intptr_t Socket::RecvFrom(intptr_t fd, void* buffer, intptr_t num_bytes,
                      RawAddr* addr) {
   ASSERT(fd >= 0);
   socklen_t addr_len = sizeof(addr->ss);
   ssize_t read_bytes = TEMP_FAILURE_RETRY(
       recvfrom(fd, buffer, num_bytes, 0, &addr->addr, &addr_len));
   if (read_bytes == -1 && errno == EWOULDBLOCK) {
     // If the read would block we need to retry and therefore return 0
     // as the number of bytes written.
     read_bytes = 0;
   }
   return read_bytes;
 }
 
 
-int Socket::Write(intptr_t fd, const void* buffer, intptr_t num_bytes) {
+intptr_t Socket::Write(intptr_t fd, const void* buffer, intptr_t num_bytes) {
   ASSERT(fd >= 0);
   ssize_t written_bytes = TEMP_FAILURE_RETRY(write(fd, buffer, num_bytes));
   ASSERT(EAGAIN == EWOULDBLOCK);
   if (written_bytes == -1 && errno == EWOULDBLOCK) {
     // If the would block we need to retry and therefore return 0 as
     // the number of bytes written.
     written_bytes = 0;
   }
   return written_bytes;
 }
 
 
-int Socket::SendTo(intptr_t fd, const void* buffer, intptr_t num_bytes,
+intptr_t Socket::SendTo(intptr_t fd, const void* buffer, intptr_t num_bytes,
                    RawAddr addr) {
   ASSERT(fd >= 0);
   ssize_t written_bytes = TEMP_FAILURE_RETRY(
       sendto(fd, buffer, num_bytes, 0,
           &addr.addr, SocketAddress::GetAddrLength(&addr)));
   ASSERT(EAGAIN == EWOULDBLOCK);
   if (written_bytes == -1 && errno == EWOULDBLOCK) {
     // If the would block we need to retry and therefore return 0 as
     // the number of bytes written.
     written_bytes = 0;
@@ skipping 411 matching lines @@
   mreq.gr_interface = interfaceIndex;
   memmove(&mreq.gr_group, &addr->ss, SocketAddress::GetAddrLength(addr));
   return NO_RETRY_EXPECTED(
       setsockopt(fd, proto, MCAST_LEAVE_GROUP, &mreq, sizeof(mreq))) == 0;
 }
 
 }  // namespace bin
 }  // namespace dart
 
 #endif  // defined(TARGET_OS_LINUX)