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TFTP: don't ack if wrong block num is received

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If an unexpected block number was received, break out of the
switch loop.
This commit is contained in:
Daniel Stenberg 2010-05-21 23:07:59 +02:00
parent 0a29e2445c
commit 0bb6deda72
1 changed files with 2 additions and 1 deletions
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3
lib/tftp.c
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@ -599,11 +599,12 @@ static CURLcode tftp_rx(tftp_state_data_t *state, tftp_event_t event)
infof(data, infof(data,
"Received unexpected DATA packet block %d\n", rblock); "Received unexpected DATA packet block %d\n", rblock);
state->retries++; state->retries++;
if(state->retries>state->retry_max) { if(state->retries > state->retry_max) {
failf(data, "tftp_rx: giving up waiting for block %d", failf(data, "tftp_rx: giving up waiting for block %d",
NEXT_BLOCKNUM(state->block)); NEXT_BLOCKNUM(state->block));
return CURLE_TFTP_ILLEGAL; return CURLE_TFTP_ILLEGAL;
} }
break;
} }
/* This is the expected block. Reset counters and ACK it. */ /* This is the expected block. Reset counters and ACK it. */
state->block = (unsigned short)rblock; state->block = (unsigned short)rblock;