...). The correct syntax is: int value ; error = ioctl( udp_socket , ioctl_type , & value ); FIONREAD ( SIOCINQ ) Gets a pointer to an integer as argument. Returns the size of the …...tes in the pipe in the int buffer pointed to by the final argument of the call: ioctl(fd, FIONREAD, &nbytes); The FIONREAD operation is not specified in any standard, but is pro…...rned. SIOCINQ is defined in <linux/sockios.h> . Alternatively, you can use the synonymous FIONREAD , defined in <sys/ioctl.h> . For SOCK_DGRAM sockets, the returned value is the…...ptor in the process's /proc/ pid /fdinfo directory. See proc (5) for further details. The FIONREAD ioctl (2) returns the number of bytes available to read from an inotify file d…TCP protocol NAME tcp - TCP protocol SYNOPSIS #include <sys/socket.h> #include <netinet/in.h> #include <netinet/tcp.h> tcp_socket = socket(AF_INET, SOCK_STREAM, 0); DESCRIPTION Thi…