Usually after a reading from the input queue, they are destroyed. When MSG_PEEK = 1, data from the input queue is not cleared. This flag used, for example, by ftp. If successful, the command will return the number of bytes transferred, otherwise, 1. in vsat networks All of the above statements are intended for use within protocols, connection-oriented (TCP), which do not require a destination address. In protocols such as udp (not connection-oriented) to communicate using the operators sendto, recvfrom, or sendmsg: R = sendto (s, msg_buf, buflen, flags, adr_struc, adr_struc_len) or recvfrom (s, msg_buf, buflen, flags, adr_struc, adr_struc_len), where s - a handle to the connector, msg_buf - a pointer to a buffer where the message is, buflen - length of the buffer (message length) adr_struc - the address structure that contains comprehensive information about the recipient, adr_struc_len - the length of this structure.
Recvfrom operator takes all the data coming to its home port. Adopting the datagram, recvfrom writes the address from which this datagram is received. The server can send to this address datagram-response. Calling sendmsg has form: R = sendmsg (s, msg_struc, flags) or recvmsg (s, msg_struc, flags), where s - a handle to the connector, msg_struc - information structure whose format is shown below in Figure 4. Application programming structures makes instant messaging more flexible. Keep in mind that for exchanges, no connection-oriented, the connector as it consists only of one-half (IP-address and port number). They can receive packets from other similar oediniteley themselves to send them a datagram (the quotes here due to the fact that this is not a real connector and no connections are not implemented).
Recvfrom operator takes all the data coming to its home port. Adopting the datagram, recvfrom writes the address from which this datagram is received. The server can send to this address datagram-response. Calling sendmsg has form: R = sendmsg (s, msg_struc, flags) or recvmsg (s, msg_struc, flags), where s - a handle to the connector, msg_struc - information structure whose format is shown below in Figure 4. Application programming structures makes instant messaging more flexible. Keep in mind that for exchanges, no connection-oriented, the connector as it consists only of one-half (IP-address and port number). They can receive packets from other similar oediniteley themselves to send them a datagram (the quotes here due to the fact that this is not a real connector and no connections are not implemented).
