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tcp: improve debug message a little

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(cherry picked from commit ed561a578b)
This commit is contained in:
Simon Goldschmidt 2019-01-30 14:27:16 +01:00
parent e1528e084d
commit 1a6455bc25
1 changed files with 3 additions and 2 deletions
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5
src/core/tcp_in.c
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@ -852,8 +852,9 @@ tcp_process(struct tcp_pcb *pcb)
/* Do different things depending on the TCP state. */
switch (pcb->state) {
case SYN_SENT:
LWIP_DEBUGF(TCP_INPUT_DEBUG, ("SYN-SENT: ackno %"U32_F" pcb->snd_nxt %"U32_F" unacked %"U32_F"\n", ackno,
pcb->snd_nxt, (pcb->unacked != NULL)? lwip_ntohl(pcb->unacked->tcphdr->seqno) : 0));
LWIP_DEBUGF(TCP_INPUT_DEBUG, ("SYN-SENT: ackno %"U32_F" pcb->snd_nxt %"U32_F" unacked %s %"U32_F"\n",
ackno, pcb->snd_nxt, pcb->unacked ? "" : " empty:",
pcb->unacked ? lwip_ntohl(pcb->unacked->tcphdr->seqno) : 0));
/* received SYN ACK with expected sequence number? */
if ((flags & TCP_ACK) && (flags & TCP_SYN)
&& (ackno == pcb->lastack + 1)) {