send()

int send(int sockfd, const void *msg, int len, int flags); 

Parameters

• sockfd is the socket descriptor you want to send data to (whether it’s the one returned by socket() or the one you got with accept())
• msg is the message
• len is the length of the message
• flags can again be set to 0

return values

• send() returns the number of bytes actually sent out
• -1 is returned on error, and errno is set to the error number.

example

char *msg = "Beej was here!";
int len, bytes_sent;
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len = strlen(msg);
bytes_sent = send(sockfd, msg, len, 0);
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