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authorDoug Zongker <dougz@android.com>2012-03-20 17:40:04 +0100
committerDoug Zongker <dougz@android.com>2012-03-20 17:58:12 +0100
commit098d1f63c64cdc0975ce8cd650e82e4043fc2600 (patch)
tree08c97c14b3cf9e501cf5b2ff125cb827db985fbf /minadbd/adb.c
parentrun minadbd as shell user (diff)
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Diffstat (limited to 'minadbd/adb.c')
-rw-r--r--minadbd/adb.c747
1 files changed, 0 insertions, 747 deletions
diff --git a/minadbd/adb.c b/minadbd/adb.c
index 3052458be..0e8fd2a7e 100644
--- a/minadbd/adb.c
+++ b/minadbd/adb.c
@@ -28,13 +28,9 @@
#include "sysdeps.h"
#include "adb.h"
-#if !ADB_HOST
#include <private/android_filesystem_config.h>
#include <linux/capability.h>
#include <linux/prctl.h>
-#else
-#include "usb_vendors.h"
-#endif
#if ADB_TRACE
ADB_MUTEX_DEFINE( D_lock );
@@ -228,29 +224,6 @@ static void send_connect(atransport *t)
HOST ? "host" : adb_device_banner);
cp->msg.data_length = strlen((char*) cp->data) + 1;
send_packet(cp, t);
-#if ADB_HOST
- /* XXX why sleep here? */
- // allow the device some time to respond to the connect message
- adb_sleep_ms(1000);
-#endif
-}
-
-static char *connection_state_name(atransport *t)
-{
- if (t == NULL) {
- return "unknown";
- }
-
- switch(t->connection_state) {
- case CS_BOOTLOADER:
- return "bootloader";
- case CS_DEVICE:
- return "device";
- case CS_OFFLINE:
- return "offline";
- default:
- return "unknown";
- }
}
void parse_banner(char *banner, atransport *t)
@@ -400,448 +373,11 @@ void handle_packet(apacket *p, atransport *t)
put_apacket(p);
}
-alistener listener_list = {
- .next = &listener_list,
- .prev = &listener_list,
-};
-
-static void ss_listener_event_func(int _fd, unsigned ev, void *_l)
-{
- asocket *s;
-
- if(ev & FDE_READ) {
- struct sockaddr addr;
- socklen_t alen;
- int fd;
-
- alen = sizeof(addr);
- fd = adb_socket_accept(_fd, &addr, &alen);
- if(fd < 0) return;
-
- adb_socket_setbufsize(fd, CHUNK_SIZE);
-
- s = create_local_socket(fd);
- if(s) {
- connect_to_smartsocket(s);
- return;
- }
-
- adb_close(fd);
- }
-}
-
-static void listener_event_func(int _fd, unsigned ev, void *_l)
-{
- alistener *l = _l;
- asocket *s;
-
- if(ev & FDE_READ) {
- struct sockaddr addr;
- socklen_t alen;
- int fd;
-
- alen = sizeof(addr);
- fd = adb_socket_accept(_fd, &addr, &alen);
- if(fd < 0) return;
-
- s = create_local_socket(fd);
- if(s) {
- s->transport = l->transport;
- connect_to_remote(s, l->connect_to);
- return;
- }
-
- adb_close(fd);
- }
-}
-
-static void free_listener(alistener* l)
-{
- if (l->next) {
- l->next->prev = l->prev;
- l->prev->next = l->next;
- l->next = l->prev = l;
- }
-
- // closes the corresponding fd
- fdevent_remove(&l->fde);
-
- if (l->local_name)
- free((char*)l->local_name);
-
- if (l->connect_to)
- free((char*)l->connect_to);
-
- if (l->transport) {
- remove_transport_disconnect(l->transport, &l->disconnect);
- }
- free(l);
-}
-
-static void listener_disconnect(void* _l, atransport* t)
-{
- alistener* l = _l;
-
- free_listener(l);
-}
-
-int local_name_to_fd(const char *name)
-{
- int port;
-
- if(!strncmp("tcp:", name, 4)){
- int ret;
- port = atoi(name + 4);
- ret = socket_loopback_server(port, SOCK_STREAM);
- return ret;
- }
-#ifndef HAVE_WIN32_IPC /* no Unix-domain sockets on Win32 */
- // It's non-sensical to support the "reserved" space on the adb host side
- if(!strncmp(name, "local:", 6)) {
- return socket_local_server(name + 6,
- ANDROID_SOCKET_NAMESPACE_ABSTRACT, SOCK_STREAM);
- } else if(!strncmp(name, "localabstract:", 14)) {
- return socket_local_server(name + 14,
- ANDROID_SOCKET_NAMESPACE_ABSTRACT, SOCK_STREAM);
- } else if(!strncmp(name, "localfilesystem:", 16)) {
- return socket_local_server(name + 16,
- ANDROID_SOCKET_NAMESPACE_FILESYSTEM, SOCK_STREAM);
- }
-
-#endif
- printf("unknown local portname '%s'\n", name);
- return -1;
-}
-
-static int remove_listener(const char *local_name, const char *connect_to, atransport* transport)
-{
- alistener *l;
-
- for (l = listener_list.next; l != &listener_list; l = l->next) {
- if (!strcmp(local_name, l->local_name) &&
- !strcmp(connect_to, l->connect_to) &&
- l->transport && l->transport == transport) {
-
- listener_disconnect(l, transport);
- return 0;
- }
- }
-
- return -1;
-}
-
-static int install_listener(const char *local_name, const char *connect_to, atransport* transport)
-{
- alistener *l;
-
- //printf("install_listener('%s','%s')\n", local_name, connect_to);
-
- for(l = listener_list.next; l != &listener_list; l = l->next){
- if(strcmp(local_name, l->local_name) == 0) {
- char *cto;
-
- /* can't repurpose a smartsocket */
- if(l->connect_to[0] == '*') {
- return -1;
- }
-
- cto = strdup(connect_to);
- if(cto == 0) {
- return -1;
- }
-
- //printf("rebinding '%s' to '%s'\n", local_name, connect_to);
- free((void*) l->connect_to);
- l->connect_to = cto;
- if (l->transport != transport) {
- remove_transport_disconnect(l->transport, &l->disconnect);
- l->transport = transport;
- add_transport_disconnect(l->transport, &l->disconnect);
- }
- return 0;
- }
- }
-
- if((l = calloc(1, sizeof(alistener))) == 0) goto nomem;
- if((l->local_name = strdup(local_name)) == 0) goto nomem;
- if((l->connect_to = strdup(connect_to)) == 0) goto nomem;
-
-
- l->fd = local_name_to_fd(local_name);
- if(l->fd < 0) {
- free((void*) l->local_name);
- free((void*) l->connect_to);
- free(l);
- printf("cannot bind '%s'\n", local_name);
- return -2;
- }
-
- close_on_exec(l->fd);
- if(!strcmp(l->connect_to, "*smartsocket*")) {
- fdevent_install(&l->fde, l->fd, ss_listener_event_func, l);
- } else {
- fdevent_install(&l->fde, l->fd, listener_event_func, l);
- }
- fdevent_set(&l->fde, FDE_READ);
-
- l->next = &listener_list;
- l->prev = listener_list.prev;
- l->next->prev = l;
- l->prev->next = l;
- l->transport = transport;
-
- if (transport) {
- l->disconnect.opaque = l;
- l->disconnect.func = listener_disconnect;
- add_transport_disconnect(transport, &l->disconnect);
- }
- return 0;
-
-nomem:
- fatal("cannot allocate listener");
- return 0;
-}
-
-#ifdef HAVE_WIN32_PROC
-static BOOL WINAPI ctrlc_handler(DWORD type)
-{
- exit(STATUS_CONTROL_C_EXIT);
- return TRUE;
-}
-#endif
-
static void adb_cleanup(void)
{
usb_cleanup();
}
-void start_logging(void)
-{
-#ifdef HAVE_WIN32_PROC
- char temp[ MAX_PATH ];
- FILE* fnul;
- FILE* flog;
-
- GetTempPath( sizeof(temp) - 8, temp );
- strcat( temp, "adb.log" );
-
- /* Win32 specific redirections */
- fnul = fopen( "NUL", "rt" );
- if (fnul != NULL)
- stdin[0] = fnul[0];
-
- flog = fopen( temp, "at" );
- if (flog == NULL)
- flog = fnul;
-
- setvbuf( flog, NULL, _IONBF, 0 );
-
- stdout[0] = flog[0];
- stderr[0] = flog[0];
- fprintf(stderr,"--- adb starting (pid %d) ---\n", getpid());
-#else
- int fd;
-
- fd = unix_open("/dev/null", O_RDONLY);
- dup2(fd, 0);
- adb_close(fd);
-
- fd = unix_open("/tmp/adb.log", O_WRONLY | O_CREAT | O_APPEND, 0640);
- if(fd < 0) {
- fd = unix_open("/dev/null", O_WRONLY);
- }
- dup2(fd, 1);
- dup2(fd, 2);
- adb_close(fd);
- fprintf(stderr,"--- adb starting (pid %d) ---\n", getpid());
-#endif
-}
-
-#if !ADB_HOST
-void start_device_log(void)
-{
- int fd;
- char path[PATH_MAX];
- struct tm now;
- time_t t;
- char value[PROPERTY_VALUE_MAX];
-
- // read the trace mask from persistent property persist.adb.trace_mask
- // give up if the property is not set or cannot be parsed
- property_get("persist.adb.trace_mask", value, "");
- if (sscanf(value, "%x", &adb_trace_mask) != 1)
- return;
-
- adb_mkdir("/data/adb", 0775);
- tzset();
- time(&t);
- localtime_r(&t, &now);
- strftime(path, sizeof(path),
- "/data/adb/adb-%Y-%m-%d-%H-%M-%S.txt",
- &now);
- fd = unix_open(path, O_WRONLY | O_CREAT | O_TRUNC, 0640);
- if (fd < 0)
- return;
-
- // redirect stdout and stderr to the log file
- dup2(fd, 1);
- dup2(fd, 2);
- fprintf(stderr,"--- adb starting (pid %d) ---\n", getpid());
- adb_close(fd);
-
- fd = unix_open("/dev/null", O_RDONLY);
- dup2(fd, 0);
- adb_close(fd);
-}
-#endif
-
-#if ADB_HOST
-int launch_server(int server_port)
-{
-#ifdef HAVE_WIN32_PROC
- /* we need to start the server in the background */
- /* we create a PIPE that will be used to wait for the server's "OK" */
- /* message since the pipe handles must be inheritable, we use a */
- /* security attribute */
- HANDLE pipe_read, pipe_write;
- SECURITY_ATTRIBUTES sa;
- STARTUPINFO startup;
- PROCESS_INFORMATION pinfo;
- char program_path[ MAX_PATH ];
- int ret;
-
- sa.nLength = sizeof(sa);
- sa.lpSecurityDescriptor = NULL;
- sa.bInheritHandle = TRUE;
-
- /* create pipe, and ensure its read handle isn't inheritable */
- ret = CreatePipe( &pipe_read, &pipe_write, &sa, 0 );
- if (!ret) {
- fprintf(stderr, "CreatePipe() failure, error %ld\n", GetLastError() );
- return -1;
- }
-
- SetHandleInformation( pipe_read, HANDLE_FLAG_INHERIT, 0 );
-
- ZeroMemory( &startup, sizeof(startup) );
- startup.cb = sizeof(startup);
- startup.hStdInput = GetStdHandle( STD_INPUT_HANDLE );
- startup.hStdOutput = pipe_write;
- startup.hStdError = GetStdHandle( STD_ERROR_HANDLE );
- startup.dwFlags = STARTF_USESTDHANDLES;
-
- ZeroMemory( &pinfo, sizeof(pinfo) );
-
- /* get path of current program */
- GetModuleFileName( NULL, program_path, sizeof(program_path) );
-
- ret = CreateProcess(
- program_path, /* program path */
- "adb fork-server server",
- /* the fork-server argument will set the
- debug = 2 in the child */
- NULL, /* process handle is not inheritable */
- NULL, /* thread handle is not inheritable */
- TRUE, /* yes, inherit some handles */
- DETACHED_PROCESS, /* the new process doesn't have a console */
- NULL, /* use parent's environment block */
- NULL, /* use parent's starting directory */
- &startup, /* startup info, i.e. std handles */
- &pinfo );
-
- CloseHandle( pipe_write );
-
- if (!ret) {
- fprintf(stderr, "CreateProcess failure, error %ld\n", GetLastError() );
- CloseHandle( pipe_read );
- return -1;
- }
-
- CloseHandle( pinfo.hProcess );
- CloseHandle( pinfo.hThread );
-
- /* wait for the "OK\n" message */
- {
- char temp[3];
- DWORD count;
-
- ret = ReadFile( pipe_read, temp, 3, &count, NULL );
- CloseHandle( pipe_read );
- if ( !ret ) {
- fprintf(stderr, "could not read ok from ADB Server, error = %ld\n", GetLastError() );
- return -1;
- }
- if (count != 3 || temp[0] != 'O' || temp[1] != 'K' || temp[2] != '\n') {
- fprintf(stderr, "ADB server didn't ACK\n" );
- return -1;
- }
- }
-#elif defined(HAVE_FORKEXEC)
- char path[PATH_MAX];
- int fd[2];
-
- // set up a pipe so the child can tell us when it is ready.
- // fd[0] will be parent's end, and fd[1] will get mapped to stderr in the child.
- if (pipe(fd)) {
- fprintf(stderr, "pipe failed in launch_server, errno: %d\n", errno);
- return -1;
- }
- get_my_path(path, PATH_MAX);
- pid_t pid = fork();
- if(pid < 0) return -1;
-
- if (pid == 0) {
- // child side of the fork
-
- // redirect stderr to the pipe
- // we use stderr instead of stdout due to stdout's buffering behavior.
- adb_close(fd[0]);
- dup2(fd[1], STDERR_FILENO);
- adb_close(fd[1]);
-
- // child process
- int result = execl(path, "adb", "fork-server", "server", NULL);
- // this should not return
- fprintf(stderr, "OOPS! execl returned %d, errno: %d\n", result, errno);
- } else {
- // parent side of the fork
-
- char temp[3];
-
- temp[0] = 'A'; temp[1] = 'B'; temp[2] = 'C';
- // wait for the "OK\n" message
- adb_close(fd[1]);
- int ret = adb_read(fd[0], temp, 3);
- int saved_errno = errno;
- adb_close(fd[0]);
- if (ret < 0) {
- fprintf(stderr, "could not read ok from ADB Server, errno = %d\n", saved_errno);
- return -1;
- }
- if (ret != 3 || temp[0] != 'O' || temp[1] != 'K' || temp[2] != '\n') {
- fprintf(stderr, "ADB server didn't ACK\n" );
- return -1;
- }
-
- setsid();
- }
-#else
-#error "cannot implement background server start on this platform"
-#endif
- return 0;
-}
-#endif
-
-/* Constructs a local name of form tcp:port.
- * target_str points to the target string, it's content will be overwritten.
- * target_size is the capacity of the target string.
- * server_port is the port number to use for the local name.
- */
-void build_local_name(char* target_str, size_t target_size, int server_port)
-{
- snprintf(target_str, target_size, "tcp:%d", server_port);
-}
-
int adb_main()
{
atexit(adb_cleanup);
@@ -876,286 +412,3 @@ int adb_main()
return 0;
}
-
-#if ADB_HOST
-void connect_device(char* host, char* buffer, int buffer_size)
-{
- int port, fd;
- char* portstr = strchr(host, ':');
- char hostbuf[100];
- char serial[100];
-
- strncpy(hostbuf, host, sizeof(hostbuf) - 1);
- if (portstr) {
- if (portstr - host >= sizeof(hostbuf)) {
- snprintf(buffer, buffer_size, "bad host name %s", host);
- return;
- }
- // zero terminate the host at the point we found the colon
- hostbuf[portstr - host] = 0;
- if (sscanf(portstr + 1, "%d", &port) == 0) {
- snprintf(buffer, buffer_size, "bad port number %s", portstr);
- return;
- }
- } else {
- port = DEFAULT_ADB_LOCAL_TRANSPORT_PORT;
- }
-
- snprintf(serial, sizeof(serial), "%s:%d", hostbuf, port);
- if (find_transport(serial)) {
- snprintf(buffer, buffer_size, "already connected to %s", serial);
- return;
- }
-
- fd = socket_network_client(hostbuf, port, SOCK_STREAM);
- if (fd < 0) {
- snprintf(buffer, buffer_size, "unable to connect to %s:%d", host, port);
- return;
- }
-
- D("client: connected on remote on fd %d\n", fd);
- close_on_exec(fd);
- disable_tcp_nagle(fd);
- register_socket_transport(fd, serial, port, 0);
- snprintf(buffer, buffer_size, "connected to %s", serial);
-}
-
-void connect_emulator(char* port_spec, char* buffer, int buffer_size)
-{
- char* port_separator = strchr(port_spec, ',');
- if (!port_separator) {
- snprintf(buffer, buffer_size,
- "unable to parse '%s' as <console port>,<adb port>",
- port_spec);
- return;
- }
-
- // Zero-terminate console port and make port_separator point to 2nd port.
- *port_separator++ = 0;
- int console_port = strtol(port_spec, NULL, 0);
- int adb_port = strtol(port_separator, NULL, 0);
- if (!(console_port > 0 && adb_port > 0)) {
- *(port_separator - 1) = ',';
- snprintf(buffer, buffer_size,
- "Invalid port numbers: Expected positive numbers, got '%s'",
- port_spec);
- return;
- }
-
- /* Check if the emulator is already known.
- * Note: There's a small but harmless race condition here: An emulator not
- * present just yet could be registered by another invocation right
- * after doing this check here. However, local_connect protects
- * against double-registration too. From here, a better error message
- * can be produced. In the case of the race condition, the very specific
- * error message won't be shown, but the data doesn't get corrupted. */
- atransport* known_emulator = find_emulator_transport_by_adb_port(adb_port);
- if (known_emulator != NULL) {
- snprintf(buffer, buffer_size,
- "Emulator on port %d already registered.", adb_port);
- return;
- }
-
- /* Check if more emulators can be registered. Similar unproblematic
- * race condition as above. */
- int candidate_slot = get_available_local_transport_index();
- if (candidate_slot < 0) {
- snprintf(buffer, buffer_size, "Cannot accept more emulators.");
- return;
- }
-
- /* Preconditions met, try to connect to the emulator. */
- if (!local_connect_arbitrary_ports(console_port, adb_port)) {
- snprintf(buffer, buffer_size,
- "Connected to emulator on ports %d,%d", console_port, adb_port);
- } else {
- snprintf(buffer, buffer_size,
- "Could not connect to emulator on ports %d,%d",
- console_port, adb_port);
- }
-}
-#endif
-
-int handle_host_request(char *service, transport_type ttype, char* serial, int reply_fd, asocket *s)
-{
- atransport *transport = NULL;
- char buf[4096];
-
- if(!strcmp(service, "kill")) {
- fprintf(stderr,"adb server killed by remote request\n");
- fflush(stdout);
- adb_write(reply_fd, "OKAY", 4);
- usb_cleanup();
- exit(0);
- }
-
-#if ADB_HOST
- // "transport:" is used for switching transport with a specified serial number
- // "transport-usb:" is used for switching transport to the only USB transport
- // "transport-local:" is used for switching transport to the only local transport
- // "transport-any:" is used for switching transport to the only transport
- if (!strncmp(service, "transport", strlen("transport"))) {
- char* error_string = "unknown failure";
- transport_type type = kTransportAny;
-
- if (!strncmp(service, "transport-usb", strlen("transport-usb"))) {
- type = kTransportUsb;
- } else if (!strncmp(service, "transport-local", strlen("transport-local"))) {
- type = kTransportLocal;
- } else if (!strncmp(service, "transport-any", strlen("transport-any"))) {
- type = kTransportAny;
- } else if (!strncmp(service, "transport:", strlen("transport:"))) {
- service += strlen("transport:");
- serial = service;
- }
-
- transport = acquire_one_transport(CS_ANY, type, serial, &error_string);
-
- if (transport) {
- s->transport = transport;
- adb_write(reply_fd, "OKAY", 4);
- } else {
- sendfailmsg(reply_fd, error_string);
- }
- return 1;
- }
-
- // return a list of all connected devices
- if (!strcmp(service, "devices")) {
- char buffer[4096];
- memset(buf, 0, sizeof(buf));
- memset(buffer, 0, sizeof(buffer));
- D("Getting device list \n");
- list_transports(buffer, sizeof(buffer));
- snprintf(buf, sizeof(buf), "OKAY%04x%s",(unsigned)strlen(buffer),buffer);
- D("Wrote device list \n");
- writex(reply_fd, buf, strlen(buf));
- return 0;
- }
-
- // add a new TCP transport, device or emulator
- if (!strncmp(service, "connect:", 8)) {
- char buffer[4096];
- char* host = service + 8;
- if (!strncmp(host, "emu:", 4)) {
- connect_emulator(host + 4, buffer, sizeof(buffer));
- } else {
- connect_device(host, buffer, sizeof(buffer));
- }
- // Send response for emulator and device
- snprintf(buf, sizeof(buf), "OKAY%04x%s",(unsigned)strlen(buffer), buffer);
- writex(reply_fd, buf, strlen(buf));
- return 0;
- }
-
- // remove TCP transport
- if (!strncmp(service, "disconnect:", 11)) {
- char buffer[4096];
- memset(buffer, 0, sizeof(buffer));
- char* serial = service + 11;
- if (serial[0] == 0) {
- // disconnect from all TCP devices
- unregister_all_tcp_transports();
- } else {
- char hostbuf[100];
- // assume port 5555 if no port is specified
- if (!strchr(serial, ':')) {
- snprintf(hostbuf, sizeof(hostbuf) - 1, "%s:5555", serial);
- serial = hostbuf;
- }
- atransport *t = find_transport(serial);
-
- if (t) {
- unregister_transport(t);
- } else {
- snprintf(buffer, sizeof(buffer), "No such device %s", serial);
- }
- }
-
- snprintf(buf, sizeof(buf), "OKAY%04x%s",(unsigned)strlen(buffer), buffer);
- writex(reply_fd, buf, strlen(buf));
- return 0;
- }
-
- // returns our value for ADB_SERVER_VERSION
- if (!strcmp(service, "version")) {
- char version[12];
- snprintf(version, sizeof version, "%04x", ADB_SERVER_VERSION);
- snprintf(buf, sizeof buf, "OKAY%04x%s", (unsigned)strlen(version), version);
- writex(reply_fd, buf, strlen(buf));
- return 0;
- }
-
- if(!strncmp(service,"get-serialno",strlen("get-serialno"))) {
- char *out = "unknown";
- transport = acquire_one_transport(CS_ANY, ttype, serial, NULL);
- if (transport && transport->serial) {
- out = transport->serial;
- }
- snprintf(buf, sizeof buf, "OKAY%04x%s",(unsigned)strlen(out),out);
- writex(reply_fd, buf, strlen(buf));
- return 0;
- }
- // indicates a new emulator instance has started
- if (!strncmp(service,"emulator:",9)) {
- int port = atoi(service+9);
- local_connect(port);
- /* we don't even need to send a reply */
- return 0;
- }
-#endif // ADB_HOST
-
- if(!strncmp(service,"forward:",8) || !strncmp(service,"killforward:",12)) {
- char *local, *remote, *err;
- int r;
- atransport *transport;
-
- int createForward = strncmp(service,"kill",4);
-
- local = service + (createForward ? 8 : 12);
- remote = strchr(local,';');
- if(remote == 0) {
- sendfailmsg(reply_fd, "malformed forward spec");
- return 0;
- }
-
- *remote++ = 0;
- if((local[0] == 0) || (remote[0] == 0) || (remote[0] == '*')){
- sendfailmsg(reply_fd, "malformed forward spec");
- return 0;
- }
-
- transport = acquire_one_transport(CS_ANY, ttype, serial, &err);
- if (!transport) {
- sendfailmsg(reply_fd, err);
- return 0;
- }
-
- if (createForward) {
- r = install_listener(local, remote, transport);
- } else {
- r = remove_listener(local, remote, transport);
- }
- if(r == 0) {
- /* 1st OKAY is connect, 2nd OKAY is status */
- writex(reply_fd, "OKAYOKAY", 8);
- return 0;
- }
-
- if (createForward) {
- sendfailmsg(reply_fd, (r == -1) ? "cannot rebind smartsocket" : "cannot bind socket");
- } else {
- sendfailmsg(reply_fd, "cannot remove listener");
- }
- return 0;
- }
-
- if(!strncmp(service,"get-state",strlen("get-state"))) {
- transport = acquire_one_transport(CS_ANY, ttype, serial, NULL);
- char *state = connection_state_name(transport);
- snprintf(buf, sizeof buf, "OKAY%04x%s",(unsigned)strlen(state),state);
- writex(reply_fd, buf, strlen(buf));
- return 0;
- }
- return -1;
-}