rtime(3t) - man - phpMan

RTIME(3)                 BSD Library Functions Manual                 RTIME(3)

NAME
     rtime — 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 argument specifies how long the routine
     should wait before giving up when waiting for a reply.  If timeout is specified as NULL, how‐
     ever, the routine will instead use TCP and block until a reply is received from the time
     server.

RETURN VALUES
     The rtime() function returns the value 0 if successful; otherwise the value -1 is returned and
     the global variable errno is set to indicate the error.

AVAILABILITY
     The rtime() function is part of libtirpc.

BSD                            November 22, 1987                           BSD