auto import from //depot/cupcake/@135843
diff --git a/adb/transport_local.c b/adb/transport_local.c
new file mode 100644
index 0000000..be01f29
--- /dev/null
+++ b/adb/transport_local.c
@@ -0,0 +1,263 @@
+/*
+ * Copyright (C) 2007 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <errno.h>
+
+#include "sysdeps.h"
+#include <sys/types.h>
+
+#define TRACE_TAG TRACE_TRANSPORT
+#include "adb.h"
+
+#ifdef __ppc__
+#define H4(x) (((x) & 0xFF000000) >> 24) | (((x) & 0x00FF0000) >> 8) | (((x) & 0x0000FF00) << 8) | (((x) & 0x000000FF) << 24)
+static inline void fix_endians(apacket *p)
+{
+ p->msg.command = H4(p->msg.command);
+ p->msg.arg0 = H4(p->msg.arg0);
+ p->msg.arg1 = H4(p->msg.arg1);
+ p->msg.data_length = H4(p->msg.data_length);
+ p->msg.data_check = H4(p->msg.data_check);
+ p->msg.magic = H4(p->msg.magic);
+}
+#else
+#define fix_endians(p) do {} while (0)
+#endif
+
+#if ADB_HOST
+/* we keep a list of opened transports, transport 0 is bound to 5555,
+ * transport 1 to 5557, .. transport n to 5555 + n*2. the list is used
+ * to detect when we're trying to connect twice to a given local transport
+ */
+#define ADB_LOCAL_TRANSPORT_MAX 16
+
+ADB_MUTEX_DEFINE( local_transports_lock );
+
+static atransport* local_transports[ ADB_LOCAL_TRANSPORT_MAX ];
+#endif /* ADB_HOST */
+
+static int remote_read(apacket *p, atransport *t)
+{
+ if(readx(t->sfd, &p->msg, sizeof(amessage))){
+ D("remote local: read terminated (message)\n");
+ return -1;
+ }
+
+ fix_endians(p);
+
+#if 0 && defined __ppc__
+ D("read remote packet: %04x arg0=%0x arg1=%0x data_length=%0x data_check=%0x magic=%0x\n",
+ p->msg.command, p->msg.arg0, p->msg.arg1, p->msg.data_length, p->msg.data_check, p->msg.magic);
+#endif
+ if(check_header(p)) {
+ D("bad header: terminated (data)\n");
+ return -1;
+ }
+
+ if(readx(t->sfd, p->data, p->msg.data_length)){
+ D("remote local: terminated (data)\n");
+ return -1;
+ }
+
+ if(check_data(p)) {
+ D("bad data: terminated (data)\n");
+ return -1;
+ }
+
+ return 0;
+}
+
+static int remote_write(apacket *p, atransport *t)
+{
+ int length = p->msg.data_length;
+
+ fix_endians(p);
+
+#if 0 && defined __ppc__
+ D("write remote packet: %04x arg0=%0x arg1=%0x data_length=%0x data_check=%0x magic=%0x\n",
+ p->msg.command, p->msg.arg0, p->msg.arg1, p->msg.data_length, p->msg.data_check, p->msg.magic);
+#endif
+ if(writex(t->sfd, &p->msg, sizeof(amessage) + length)) {
+ D("remote local: write terminated\n");
+ return -1;
+ }
+
+ return 0;
+}
+
+
+int local_connect(int port)
+{
+ char buf[64];
+ int fd = -1;
+
+#if ADB_HOST
+ const char *host = getenv("ADBHOST");
+ if (host) {
+ fd = socket_network_client(host, port, SOCK_STREAM);
+ }
+#endif
+ if (fd < 0) {
+ fd = socket_loopback_client(port, SOCK_STREAM);
+ }
+
+ if (fd >= 0) {
+ D("client: connected on remote on fd %d\n", fd);
+ close_on_exec(fd);
+ disable_tcp_nagle(fd);
+ snprintf(buf, sizeof buf, "%s%d", LOCAL_CLIENT_PREFIX, port - 1);
+ register_socket_transport(fd, buf, port);
+ return 0;
+ }
+ return -1;
+}
+
+
+static void *client_socket_thread(void *x)
+{
+#if ADB_HOST
+ int port = ADB_LOCAL_TRANSPORT_PORT;
+ int count = ADB_LOCAL_TRANSPORT_MAX;
+
+ D("transport: client_socket_thread() starting\n");
+
+ /* try to connect to any number of running emulator instances */
+ /* this is only done when ADB starts up. later, each new emulator */
+ /* will send a message to ADB to indicate that is is starting up */
+ for ( ; count > 0; count--, port += 2 ) {
+ (void) local_connect(port);
+ }
+#endif
+ return 0;
+}
+
+static void *server_socket_thread(void *x)
+{
+ int serverfd, fd;
+ struct sockaddr addr;
+ socklen_t alen;
+
+ D("transport: server_socket_thread() starting\n");
+ serverfd = -1;
+ for(;;) {
+ if(serverfd == -1) {
+ serverfd = socket_inaddr_any_server(ADB_LOCAL_TRANSPORT_PORT, SOCK_STREAM);
+ if(serverfd < 0) {
+ D("server: cannot bind socket yet\n");
+ adb_sleep_ms(1000);
+ continue;
+ }
+ close_on_exec(serverfd);
+ }
+
+ alen = sizeof(addr);
+ D("server: trying to get new connection from %d\n", ADB_LOCAL_TRANSPORT_PORT);
+ fd = adb_socket_accept(serverfd, &addr, &alen);
+ if(fd >= 0) {
+ D("server: new connection on fd %d\n", fd);
+ close_on_exec(fd);
+ disable_tcp_nagle(fd);
+ register_socket_transport(fd,"host",ADB_LOCAL_TRANSPORT_PORT);
+ }
+ }
+ D("transport: server_socket_thread() exiting\n");
+ return 0;
+}
+
+void local_init(void)
+{
+ adb_thread_t thr;
+ void* (*func)(void *);
+
+ if(HOST) {
+ func = client_socket_thread;
+ } else {
+ func = server_socket_thread;
+ }
+
+ D("transport: local %s init\n", HOST ? "client" : "server");
+
+ if(adb_thread_create(&thr, func, 0)) {
+ fatal_errno("cannot create local socket %s thread",
+ HOST ? "client" : "server");
+ }
+}
+
+static void remote_kick(atransport *t)
+{
+ int fd = t->sfd;
+ t->sfd = -1;
+ adb_close(fd);
+
+#if ADB_HOST
+ if(HOST) {
+ int nn;
+ adb_mutex_lock( &local_transports_lock );
+ for (nn = 0; nn < ADB_LOCAL_TRANSPORT_MAX; nn++) {
+ if (local_transports[nn] == t) {
+ local_transports[nn] = NULL;
+ break;
+ }
+ }
+ adb_mutex_unlock( &local_transports_lock );
+ }
+#endif
+}
+
+static void remote_close(atransport *t)
+{
+ adb_close(t->fd);
+}
+
+int init_socket_transport(atransport *t, int s, int port)
+{
+ int fail = 0;
+
+ t->kick = remote_kick;
+ t->close = remote_close;
+ t->read_from_remote = remote_read;
+ t->write_to_remote = remote_write;
+ t->sfd = s;
+ t->sync_token = 1;
+ t->connection_state = CS_OFFLINE;
+ t->type = kTransportLocal;
+
+#if ADB_HOST
+ if (HOST) {
+ adb_mutex_lock( &local_transports_lock );
+ {
+ int index = (port - ADB_LOCAL_TRANSPORT_PORT)/2;
+
+ if (!(port & 1) || index < 0 || index >= ADB_LOCAL_TRANSPORT_MAX) {
+ D("bad local transport port number: %d\n", port);
+ fail = -1;
+ }
+ else if (local_transports[index] != NULL) {
+ D("local transport for port %d already registered (%p)?\n",
+ port, local_transports[index]);
+ fail = -1;
+ }
+ else
+ local_transports[index] = t;
+ }
+ adb_mutex_unlock( &local_transports_lock );
+ }
+#endif
+ return fail;
+}