POSIX-compliant Socket#

socket_option_level#

socket_option_level

Socket option level enum type definition.

socket_handler_opt#

socket_handler_opt

Socket option level enum type definition.

socket_option_level_t#

typedef enum socket_option_level socket_option_level_t

Socket option level enum type definition.

socket_handler_opt_t#

typedef enum socket_handler_opt socket_handler_opt_t

Socket option level enum type definition.

in6addr_any#

const in6_addr_t in6addr_any

Definition of any address for IPv6.

socket#

int32_t socket (sock_domain_t domain, sock_type_t type, proto_type_t protocol)

Create an endpoint for ocket ID communication and return.

Socket API supports Wi-SUN FAN and external IP network communications. External handlers can be implemented; Default implementations are weak functions. Created sockets are added to the socket handler automatically. Returns

• if any error occurred, return with -1, otherwise return with the socket id

close#

int32_t close (int32_t sockid)

Close a socket.

Close a socket and remove from the socket handler storage. Returns

• if any error occurred, return with -1, otherwise return with the socket id

bind#

int32_t bind (int32_t sockid, const struct sockaddr * addr, socklen_t addrlen)

Bind a name to a socket.

Assigns the address to the socket, referred to by the socket ID, as specified by addr. It is normally necessary to assign a local address using bind() before a SOCK_STREAM socket may receive connections. Returns

• On success, zero is returned. On error, -1 is returned

listen#

int32_t listen (int32_t sockid, int32_t backlog)

Listen for connections on a socket.

Marks the socket referred to by sockid as a passive socket, that is, as a socket that will be used to accept incoming connection requests using accept. Returns

• On success, zero is returned. On error, -1 is returned

accept#

int32_t accept (int32_t sockid, struct sockaddr * addr, socklen_t * addrlen)

Accept a connection on a socket.

Used with connection-based socket types (TCP). It extracts the first connection request on the queue of pending connections for the listening socket. Returns

• On success, return with the socket id for accepted socket, on error -1 is returned.

connect#

int32_t connect (int32_t sockid, const struct sockaddr * addr, socklen_t addrlen)

Initiate a connection on a socket.

Connects the socket referred to by the socketid to the address specified by addr. Returns

• If the connection or binding succeeds, zero is returned. On error, -1 is returned.

send#

int32_t send (int32_t sockid, const void * buff, uint32_t len, int32_t flags)

Send a message on a socket.

Preferred with connection-oriented sockets (TCP). Returns

• On success, these calls return the number of bytes sent. On error, -1 is returned

sendto#

int32_t sendto (int32_t sockid, const void * buff, uint32_t len, int32_t flags, const struct sockaddr * dest_addr, socklen_t addr_len)

Send a message on a socket.

Preferred in datagram mode (UDP). Returns

• On success, these calls return the number of bytes sent. On error, -1 is returned

recv#

int32_t recv (int32_t sockid, void * buf, uint32_t len, int32_t flags)

Receive a message from a socket.

Should be used for connection-oriented protocol (TCP) Returns

• return the number of bytes received, or -1 if an error occurred

recvfrom#

int32_t recvfrom (int32_t sockid, void * buf, uint32_t len, int32_t flags, struct sockaddr * src_addr, socklen_t * addrlen)

Receive messages from a socket.

Receives data on a socket whether or not it is connection-oriented. Returns

• return the number of bytes received, or -1 if an error occurred

setsockopt#

int32_t setsockopt (int32_t sockid, int32_t level, int32_t optname, const void * optval, socklen_t optlen)

Set socket option.

This function can set socket properties. Limitation for the Wi-SUN domain are that optlen and level args are not used. optname and optval are cast to the corresponding Wi-SUN types: sl_wisun_socket_option_t and sl_wisun_socket_option_data_t. sl_wisun_socket_option_data_t is a union type to include all of implemented Wi-SUN socket options Returns

• Return 0 on success, other wise -1

getsockopt#

int32_t getsockopt (int32_t sockid, int32_t level, int32_t optname, void * optval, socklen_t * optlen)

Get socket option.

The function gets socket option by optname, and copies option data to optval ptr. Returns

• Return 0 on success, other wise -1

htonl#

static uint32_t htonl (uint32_t hostlong)

Convert the long host byte order to network order.

This function converts the unsigned integer hostlong from host byte order to network byte order. For Wi-SUN, the conversion is not needed. Dummy implementation Returns

• Long network integer

htons#

static uint16_t htons (uint16_t hostshort)

Convert the short host byte order to network order.

This function converts the unsigned short integer hostshort from host byte order to network byte order. For Wi-SUN, the conversion is not needed. Dummy implementation Returns

• Short network integer

ntohl#

static uint32_t ntohl (uint32_t netlong)

Convert the long network byte order to host byte order.

This function converts the unsigned integer netlong from network byte order to host byte order. For Wi-SUN, the conversion is not needed. Dummy implementation Returns

• Long host integer

ntohs#

static uint16_t ntohs (uint16_t netshort)

Convert the short network byte order to host byte order.

This function converts the unsigned short integer netshort from the network byte order to host byte order. For Wi-SUN, the conversion is not needed. Dummy implementation Returns

• Short host integer

inet_pton#

int32_t inet_pton (sock_domain_t af, const char * src, void * dst)

Convert the IPv4 and IPv6 addresses from text to binary form.

This function converts the character string src into a network address structure in the af address family, then copies the network address structure to dst. For AF_WISUN or AF_INET6, stoip6(src, len, dst) called within the implementation AF_INET (IPv4) case not implemented. Returns

• 1 on succes, -1 on error (POSIX described the 0 value too)

inet_ntop#

const char* inet_ntop (sock_domain_t af, const void * src, char * dst, socklen_t size)

Convert IPv4 and IPv6 addresses from binary to text form.

Converts the network address structure src in the af address family into a character string. The resulting string is copied to the buffer pointed to by dst, which must be a non-null pointer. The caller specifies the number of bytes available in this buffer in the argument size. For AF_WISUN or AF_INET6, stoip6(src, len, dst) called within the implementation AF_INET (IPv4) case not implemented. Returns

• It returns a non-null pointer to dst. NULL is returned if there was an error

SOCKADDR_WISUN_FAMILY_OFFSET#

#define SOCKADDR_WISUN_FAMILY_OFFSET

(offsetof(wisun_addr_t, sin6_family))

Address structure family offset.

SOCKADDR_WISUN_PORT_OFFSET#

#define SOCKADDR_WISUN_PORT_OFFSET

(offsetof(wisun_addr_t, sin6_port))

Address structure port offset.

SOCKADDR_WISUN_FLOWINFO_OFFSET#

#define SOCKADDR_WISUN_FLOWINFO_OFFSET

(offsetof(wisun_addr_t, sin6_flowinfo))

Address structure flow info offset.

SOCKADDR_WISUN_ADDRESS_OFFSET#

#define SOCKADDR_WISUN_ADDRESS_OFFSET

(offsetof(wisun_addr_t, sin6_addr))

Address structure address offset.

SOCKADDR_WISUN_SCOPEID_OFFSET#

#define SOCKADDR_WISUN_SCOPEID_OFFSET

(offsetof(wisun_addr_t, sin6_scope_id))

Address structure scope ID offset.

INADDR_ANY#

#define INADDR_ANY

(0UL)

Definition of any address for IPv4.