rtime(3)rtime(3)NAMErtime - Get remote time
SYNOPSIS
#include <sys/types.h> #include <sys/time.h> #include <netinet/in.h>
int rtime(
struct sockaddr_in *addrp,
struct timeval *timep,
struct timeval *timeout );
DESCRIPTION
The rtime() function consults the Internet Time Server at the address
pointed to by addrp and returns the remote time in the timeval struct
pointed to by timep. Normally, the UDP protocol is used when consulting
the Time Server. The timeout parameter specifies how long the routine
should wait before giving up when waiting for a reply. If timeout is
specified as NULL, however, the routine will instead use TCP and block
until a reply is received from the time server.
RETURN VALUES
The routine returns 0 if it is successful. Otherwise, it returns -1 and
errno is set to reflect the cause of the error.
SEE ALSO
Commands: timed(8), timedc(8)rtime(3)