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Fix bug #55171: Binding UDP PCB with different IP type PCBs does not work
by additionally checking IP address type
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@ -997,8 +997,10 @@ udp_bind(struct udp_pcb *pcb, const ip_addr_t *ipaddr, u16_t port)
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{
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{
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/* port matches that of PCB in list and REUSEADDR not set -> reject */
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/* port matches that of PCB in list and REUSEADDR not set -> reject */
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if ((ipcb->local_port == port) &&
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if ((ipcb->local_port == port) &&
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(IP_GET_TYPE(&ipcb->local_ip) == IP_GET_TYPE(ipaddr)) &&
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/* IP address matches or any IP used? */
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/* IP address matches or any IP used? */
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(ip_addr_cmp(&ipcb->local_ip, ipaddr) || ip_addr_isany(ipaddr) ||
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(ip_addr_cmp(&ipcb->local_ip, ipaddr) ||
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ip_addr_isany(ipaddr) ||
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ip_addr_isany(&ipcb->local_ip))) {
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ip_addr_isany(&ipcb->local_ip))) {
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/* other PCB already binds to this local IP and port */
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/* other PCB already binds to this local IP and port */
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LWIP_DEBUGF(UDP_DEBUG,
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LWIP_DEBUGF(UDP_DEBUG,
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