udp_bind() function

Bind an UDP PCB. ipaddr & port are expected to be in the same byte order as in the pcb. @see udp_disconnect()

Syntax

err_t udp_bind (struct udp_pcb *pcb, const ip_addr_t *ipaddr, u16_t port);

Implemented in udp.c:931

UDP PCB to be bound with a local address ipaddr and port.

local IP address to bind with. Use IP_ANY_TYPE to bind to all local interfaces.

local UDP port to bind with. Use 0 to automatically bind to a random port between UDP_LOCAL_PORT_RANGE_START and UDP_LOCAL_PORT_RANGE_END.

lwIP error code. - ERR_OK. Successful. No error occurred. - ERR_USE. The specified ipaddr and port are already bound to by another UDP PCB.

udp_bind() is referenced by 8 libraries and example projects.

Location	Referrer	Text
udp.c:932		udp_bind(struct udp_pcb pcb, const ip_addr_t ipaddr, u16_t port)
udp.h:122		err_t udp_bind (struct udp_pcb pcb, const ip_addr_t ipaddr,
api_msg.c:1230	lwip_netconn_do_bind()	err = udp_bind(msg->conn->pcb.udp, API_EXPR_REF(msg->msg.bc.ipaddr), msg->msg.bc.port);
dhcp.c:241	dhcp_inc_pcb_refcount()	udp_bind(dhcp_pcb, IP4_ADDR_ANY, LWIP_IANA_PORT_DHCP_CLIENT);
dns.c:879	dns_alloc_random_port()	err = udp_bind(pcb, IP_ANY_TYPE, port);
udp.c:748	udp_sendto_if_src()	err = udp_bind(pcb, &pcb->local_ip, pcb->local_port);
udp.c:1081	udp_connect()	err_t err = udp_bind(pcb, &pcb->local_ip, pcb->local_port);