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Add some parentheses for better code readability in tcp_in.c

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This commit is contained in:
Dirk Ziegelmeier 2017-01-13 11:13:44 +01:00
parent 9898d406bc
commit df8e404abd
1 changed files with 3 additions and 3 deletions
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6
src/core/tcp_in.c
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@ -925,7 +925,7 @@ tcp_process(struct tcp_pcb *pcb)
break;
case CLOSING:
tcp_receive(pcb);
if (flags & TCP_ACK && ackno == pcb->snd_nxt && pcb->unsent == NULL) {
if ((flags & TCP_ACK) && ackno == pcb->snd_nxt && pcb->unsent == NULL) {
LWIP_DEBUGF(TCP_DEBUG, ("TCP connection closed: CLOSING %"U16_F" -> %"U16_F".\n", inseg.tcphdr->src, inseg.tcphdr->dest));
tcp_pcb_purge(pcb);
TCP_RMV_ACTIVE(pcb);
@ -935,7 +935,7 @@ tcp_process(struct tcp_pcb *pcb)
break;
case LAST_ACK:
tcp_receive(pcb);
if (flags & TCP_ACK && ackno == pcb->snd_nxt && pcb->unsent == NULL) {
if ((flags & TCP_ACK) && ackno == pcb->snd_nxt && pcb->unsent == NULL) {
LWIP_DEBUGF(TCP_DEBUG, ("TCP connection closed: LAST_ACK %"U16_F" -> %"U16_F".\n", inseg.tcphdr->src, inseg.tcphdr->dest));
/* bugfix #21699: don't set pcb->state to CLOSED here or we risk leaking segments */
recv_flags |= TF_CLOSED;
@ -1417,7 +1417,7 @@ tcp_receive(struct tcp_pcb *pcb)
TCP_SEQ_GEQ(seqno + tcplen,
next->tcphdr->seqno + next->len)) {
/* inseg cannot have FIN here (already processed above) */
if (TCPH_FLAGS(next->tcphdr) & TCP_FIN &&
if ((TCPH_FLAGS(next->tcphdr) & TCP_FIN) != 0 &&
(TCPH_FLAGS(inseg.tcphdr) & TCP_SYN) == 0) {
TCPH_SET_FLAG(inseg.tcphdr, TCP_FIN);
tcplen = TCP_TCPLEN(&inseg);