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firedtv: use length_field() of PMT as length
Parsed and used the length_field() of the PMT message instead of using the length field of the message struct, which does not seem to be filled correctly by e.g. MythTV. Signed-off-by: Henrik Kurelid <henrik@kurelid.se> Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
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parent
096edfbf16
commit
7199e523ef
1 changed files with 12 additions and 6 deletions
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@ -127,14 +127,20 @@ static int firesat_ca_pmt(struct firesat *firesat, void *arg)
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{
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struct ca_msg *msg = arg;
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int data_pos;
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int data_length;
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int i;
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if (msg->msg[3] & 0x80)
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data_pos = (msg->msg[4] && 0x7F) + 4;
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else
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data_pos = 4;
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data_pos = 4;
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if (msg->msg[3] & 0x80) {
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data_length = 0;
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for (i = 0; i < (msg->msg[3] & 0x7F); i++)
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data_length = (data_length << 8) + msg->msg[data_pos++];
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} else {
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data_length = msg->msg[3];
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}
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return avc_ca_pmt(firesat, &msg->msg[data_pos],
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msg->length - data_pos) ? -EFAULT : 0;
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return avc_ca_pmt(firesat, &msg->msg[data_pos], data_length) ?
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-EFAULT : 0;
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}
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static int firesat_ca_send_msg(struct firesat *firesat, void *arg)
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