static int adb_receive(Plug plug, int urgent, char *data, int len)
{
Adb adb = (Adb) plug;
if (adb->state == STATE_SENT_HELLO) {
if (data[0]=='O') { // OKAY
sk_write(adb->s,"0006shell:",10);
adb->state = STATE_ASKED_FOR_SHELL; // wait for shell start response
} else {
if (data[0]=='F') {
handle_fail(adb, data, len);
} else {
connection_fatal(adb->frontend, "Bad response after initial send");
}
return 0;
}
} else if (adb->state == STATE_ASKED_FOR_SHELL) {
if (data[0]=='O') { //OKAY
adb->state = STATE_CONNECTED; // shell started, switch to terminal mode
} else {
if (data[0]=='F') {
handle_fail(adb, data, len);
} else {
connection_fatal(adb->frontend, "Bad response waiting for shell start");
}
return 0;
}
} else if (adb->state == STATE_WAITING_FOR_ERROR_MESSAGE) {
do_fatal(adb, data, len);
} else {
c_write(adb, data, len);
}
return 1;
}
/** the error might not be available when the error occurs; wait
* a bit for more data to show up then assume that's the error message.
*/
static void handle_fail(Adb adb, char *data, int len) {
// FAIL0003abc
char message_length_hex[5];
unsigned long expected;
memcpy(message_length_hex, data+4, 4);
message_length_hex[4] = 0;
expected = strtoul(message_length_hex, NULL, 16);
if (len == expected + 8)
do_fatal(adb, data+8, expected);
else
adb->state = STATE_WAITING_FOR_ERROR_MESSAGE;
}
void
handler(int sig)
{
pid_t pid = getpid();
int status, i;
pid = wait(&status);
kids--;
for (i = 0; i < num_targets; i++) {
if (target[i].pid == pid) {
if (target[i].state == INACTIVE) {
/* thread got an I/O error */
if (target[i].err_type == 0) {
do_warn(
_("%s: write error on target %d \"%s\" at offset %lld\n"),
progname, i, target[i].name,
target[i].position);
} else {
do_warn(
_("%s: lseek64 error on target %d \"%s\" at offset %lld\n"),
progname, i, target[i].name,
target[i].position);
}
do_vfatal(target[i].error,
_("Aborting target %d - reason"), i);
if (kids == 0) {
do_log(
_("Aborting XFS copy - no more targets.\n"));
check_errors();
pthread_exit(NULL);
}
signal(SIGCHLD, handler);
return;
} else {
/* it just croaked it bigtime, log it */
do_warn(
_("%s: thread %d died unexpectedly, target \"%s\" incomplete\n"),
progname, i, target[i].name);
do_warn(_("%s: offset was probably %lld\n"),
progname, target[i].position);
do_fatal(target[i].error,
_("Aborting XFS copy - reason"));
pthread_exit(NULL);
}
}
}
/* unknown child -- something very wrong */
do_warn(_("%s: Unknown child died (should never happen!)\n"), progname);
die_perror();
pthread_exit(NULL);
signal(SIGCHLD, handler);
}
