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socket_recv6(3) Library Functions Manual socket_recv6(3) NAME socket_recv6 - receive a UDP datagram SYNTAX #include <libowfat/socket.h> ssize_t socket_recv6(int s, char* buf, size_t len, char ip[16], uint16* port, uint32* scope_id); DESCRIPTION socket_recv6 receives up to len bytes starting at buf from a UDP datagram coming in on the socket s. It writes the UDP port to port and the IP ad- dress to ip, and returns the number of bytes actually received (or -1 if anything went wrong). For link-local addresses, scope_id will become the network interface num- ber, which can be translated into the name of the interface ("eth0") with socket_getifname. RETURN VALUE socket_recv6 returns the number of bytes in the datagram if one was re- ceived. If not, it returns -1 and sets errno appropriately. EXAMPLE #include <libowfat/socket.h> int s; char ip[16]; uint16 p; char buf[1000]; int len; uint32 scope_id; s = socket_tcp4(); socket_bind6(s,ip,p); len = socket_recv6(s,buf,sizeof(buf),ip,&p,&scope_id); SEE ALSO socket_recv4(3), socket_getifname(3) socket_recv6(3)
NAME | SYNTAX | DESCRIPTION | RETURN VALUE | EXAMPLE | SEE ALSO
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