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Fixed overflow in tcp_new_port() after changing port range to IANA "Dynamic and/or Private Ports" range

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goldsimon 2011-04-29 11:23:04 +00:00
parent 80b344e9fc
commit e4739da961
1 changed files with 2 additions and 2 deletions
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4
src/core/tcp.c
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@ -619,11 +619,11 @@ tcp_new_port(void)
static u16_t port = TCP_LOCAL_PORT_RANGE_START; static u16_t port = TCP_LOCAL_PORT_RANGE_START;
again: again:
if (++port > TCP_LOCAL_PORT_RANGE_END) { if (port++ >= TCP_LOCAL_PORT_RANGE_END) {
port = TCP_LOCAL_PORT_RANGE_START; port = TCP_LOCAL_PORT_RANGE_START;
} }
/* Check all PCB lists. */ /* Check all PCB lists. */
for (i = 0; i < NUM_TCP_PCB_LISTS; i++) { for (i = 0; i < NUM_TCP_PCB_LISTS; i++) {
for(pcb = *tcp_pcb_lists[i]; pcb != NULL; pcb = pcb->next) { for(pcb = *tcp_pcb_lists[i]; pcb != NULL; pcb = pcb->next) {
if (pcb->local_port == port) { if (pcb->local_port == port) {
goto again; goto again;