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| author | Dirk Ziegelmeier <dziegelmeier@de.pepperl-fuchs.com> | 2018-12-06 14:40:57 +0100 |
|---|---|---|
| committer | Dirk Ziegelmeier <dziegelmeier@de.pepperl-fuchs.com> | 2018-12-06 14:40:57 +0100 |
| commit | 2ff0db9a9b047d1c94ddbeea010561d1b9032101 (patch) | |
| tree | b2efc6c11b19406d40616da76a74306e442569c4 | |
| parent | 91037b4c287e1a124ff5801222e4b8e04050ea42 (diff) | |
| download | lwip-2ff0db9a9b047d1c94ddbeea010561d1b9032101.tar.gz | |
Fix bug #55171: Binding UDP PCB with different IP type PCBs does not work
by additionally checking IP address type
| -rw-r--r-- | src/core/udp.c | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/src/core/udp.c b/src/core/udp.c index 7c25912..54be79d 100644 --- a/src/core/udp.c +++ b/src/core/udp.c @@ -997,8 +997,10 @@ udp_bind(struct udp_pcb *pcb, const ip_addr_t *ipaddr, u16_t port) { /* port matches that of PCB in list and REUSEADDR not set -> reject */ if ((ipcb->local_port == port) && + (IP_GET_TYPE(&ipcb->local_ip) == IP_GET_TYPE(ipaddr)) && /* IP address matches or any IP used? */ - (ip_addr_cmp(&ipcb->local_ip, ipaddr) || ip_addr_isany(ipaddr) || + (ip_addr_cmp(&ipcb->local_ip, ipaddr) || + ip_addr_isany(ipaddr) || ip_addr_isany(&ipcb->local_ip))) { /* other PCB already binds to this local IP and port */ LWIP_DEBUGF(UDP_DEBUG, |
