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Added some guarding code, if the TCP buffer got corrupted

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git-svn-id: https://svn.fhem.de/fhem/trunk@3247 2b470e98-0d58-463d-a4d8-8e2adae1ed80
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rudolfkoenig 2013-06-04 15:05:44 +00:00
parent 8f919d4f7c
commit 8ed776eff0
1 changed files with 5 additions and 0 deletions
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5
fhem/FHEM/00_FBAHA.pm
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@ -261,6 +261,11 @@ FBAHA_Read($@)
my $msg; my $msg;
while(length($data) >= 16) { while(length($data) >= 16) {
my $len = hex(substr($data, 4,4))*2; my $len = hex(substr($data, 4,4))*2;
if($len < 16 || $len > 10240) { # Out of Sync
Log 1, "FBAHA: resetting buffer as we are out of sync ($len)";
$hash->{PARTIAL} = "";
return "";
}
last if($len > length($data)); last if($len > length($data));
$msg = substr($data, 0, $len); $msg = substr($data, 0, $len);
$data = substr($data, $len); $data = substr($data, $len);