table of contents
| socket_send4(3) | Library Functions Manual | socket_send4(3) |
NAME¶
socket_send4 - send a UDP datagramSYNTAX¶
#include <socket.h>ssize_t socket_send4(int s, const char* buf, size_t len, const char ip[4],uint16 port);
DESCRIPTION¶
socket_send4 sends len bytes starting at buf in a UDP datagram over the socket s to UDP port port on IP address ip.You can call socket_send4 without calling socket_bind4. This has the effect as first calling socket_bind4 with IP address 0.0.0.0 and port 0.
RETURN VALUE¶
socket_send4 returns 0 if the datagram was sent successfully. If not, it returns -1 and sets errno appropriately.EXAMPLE¶
#include <socket.h>int s; char ip[4]; uint16 p;
s = socket_tcp4(); socket_bind4(s,ip,p); socket_send4(s,"hello, world",12,ip,p);