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Autodetect Telnet IAC modes, and if in binary mode esc 0xff chars
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This commit is contained in:
Deon George
2025-01-30 23:18:49 +11:00
parent 52961e2403
commit b1eaec3271
3 changed files with 167 additions and 5 deletions
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15
app/Classes/Protocol/Zmodem.php
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@@ -1147,7 +1147,7 @@ final class Zmodem extends Protocol implements CRCInterface,ZmodemInterface
private function ls_zrecvdata32(string &$data,int &$len,int $timeout): int
{
if (static::DEBUG)
Log::debug(sprintf('%s:+ ls_zrecvdata32',self::LOGKEY),['d'=>$data]);
Log::debug(sprintf('%s:+ ls_zrecvdata32',self::LOGKEY),['d'=>$data,'len'=>$len,'timeout'=>$timeout]);
$got = 0; /* Bytes total got */
$crc = 0; /* Received CRC */
@@ -1165,6 +1165,9 @@ final class Zmodem extends Protocol implements CRCInterface,ZmodemInterface
return self::LSZ_BADCRC;
} else {
if (static::DEBUG)
Log::debug(sprintf('%s:- ls_zrecvdata32 c>32 [%x] (%c)',self::LOGKEY,$c,($c<31 ? 32 : $c)),['c'=>serialize($c)]);
switch ($c) {
case self::LSZ_CRCE:
case self::LSZ_CRCG:
@@ -1277,6 +1280,8 @@ final class Zmodem extends Protocol implements CRCInterface,ZmodemInterface
break;
case self::LSZ_BADCRC:
$this->rxbuf = '';
case self::TIMEOUT:
if ($this->ls_rxAttnStr) {
$this->client->buffer_add($this->ls_rxAttnStr);
@@ -1305,6 +1310,9 @@ final class Zmodem extends Protocol implements CRCInterface,ZmodemInterface
$needzdata = 1;
}
if (static::DEBUG)
Log::debug(sprintf('%s:- ls_zrecvfile RC [%s]',self::LOGKEY,$rc),['needzdata'=>$needzdata]);
/* We need new position -- ZDATA (and may be ZEOF) */
} else {
Log::debug(sprintf('%s:- ls_zrecvfile Want ZDATA/ZEOF at [%d]',self::LOGKEY,$rxpos));
@@ -1335,7 +1343,7 @@ final class Zmodem extends Protocol implements CRCInterface,ZmodemInterface
return self::OK;
}
Log::debug(sprintf('%s:- ls_zrecvfile ZDATA',self::LOGKEY));
Log::debug(sprintf('%s:- ls_zrecvfile ZDATA',self::LOGKEY),['newpos'=>$newpos]);
$needzdata = 0;
}
}
@@ -1928,6 +1936,9 @@ final class Zmodem extends Protocol implements CRCInterface,ZmodemInterface
$this->ls_zsendhhdr(self::ZNAK,$this->ls_storelong(0));
}
// sleep between tries
sleep(5);
} while (++$trys < 10);
Log::error(sprintf('%s:? ls_zrecvnewpos Something strange or timeout [%d]',self::LOGKEY,$rc));