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Fix bug #48504: tcp_debug_print_pcbs reads nonexisting tcp_pcb fields

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This commit is contained in:
Dirk Ziegelmeier 2016-07-19 08:54:44 +02:00
parent 09636c5b92
commit 4ec3d29168
1 changed files with 7 additions and 5 deletions
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12
src/core/tcp.c
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@ -2023,6 +2023,8 @@ void
tcp_debug_print_pcbs(void)
{
struct tcp_pcb *pcb;
struct tcp_pcb_listen *pcbl;
LWIP_DEBUGF(TCP_DEBUG, ("Active PCB states:\n"));
for (pcb = tcp_active_pcbs; pcb != NULL; pcb = pcb->next) {
LWIP_DEBUGF(TCP_DEBUG, ("Local port %"U16_F", foreign port %"U16_F" snd_nxt %"U32_F" rcv_nxt %"U32_F" ",
@ -2030,13 +2032,13 @@ tcp_debug_print_pcbs(void)
pcb->snd_nxt, pcb->rcv_nxt));
tcp_debug_print_state(pcb->state);
}
LWIP_DEBUGF(TCP_DEBUG, ("Listen PCB states:\n"));
for (pcb = (struct tcp_pcb *)tcp_listen_pcbs.pcbs; pcb != NULL; pcb = pcb->next) {
LWIP_DEBUGF(TCP_DEBUG, ("Local port %"U16_F", foreign port %"U16_F" snd_nxt %"U32_F" rcv_nxt %"U32_F" ",
pcb->local_port, pcb->remote_port,
pcb->snd_nxt, pcb->rcv_nxt));
tcp_debug_print_state(pcb->state);
for (pcbl = tcp_listen_pcbs.listen_pcbs; pcbl != NULL; pcbl = pcbl->next) {
LWIP_DEBUGF(TCP_DEBUG, ("Local port %"U16_F" ", pcbl->local_port));
tcp_debug_print_state(pcbl->state);
}
LWIP_DEBUGF(TCP_DEBUG, ("TIME-WAIT PCB states:\n"));
for (pcb = tcp_tw_pcbs; pcb != NULL; pcb = pcb->next) {
LWIP_DEBUGF(TCP_DEBUG, ("Local port %"U16_F", foreign port %"U16_F" snd_nxt %"U32_F" rcv_nxt %"U32_F" ",