glibc/sunrpc/rtime.c
Roland McGrath 7a8bdff02c * sunrpc/svc_authux.c (_svcauth_unix): Remove spurious printf (ugh!).
* sysdeps/i386/bits/byteswap.h (__bswap_16, __bswap_32, __bswap_64):
	Evaluate argument exactly once.  Remove __volatile__ from asm's.

	* include/unistd.h: Use libc_hidden_proto for getdomainname
	and getlogin_r.
	* sysdeps/generic/getdomain.c: Add libc_hidden_def.
	* sysdeps/mach/hurd/getdomain.c: Likewise.
	* sysdeps/unix/getlogin_r.c: Likewise.
	* sysdeps/mach/hurd/getlogin_r.c: Likewise.
	* sysdeps/generic/getlogin_r.c: Likewise.

	* include/rpc/auth_des.h: Use libc_hidden_proto for rtime.
	* sunrpc/rtime.c: Add libc_hidden_def.

	* include/string.h: Use libc_hidden_proto for basename.
	* string/basename.c [_LIBC]: Add libc_hidden_def.

	* sysdeps/unix/sysv/linux/opensock.c (__opensock): socket -> __socket.

	* locale/loadarchive.c: munmap -> __munmap throughout.

	* include/netdb.h: Use libc_hidden_proto for gai_strerror.
	* sysdeps/posix/gai_strerror.c: Add libc_hidden_def.
	* sysdeps/generic/gai_strerror.c: Likewise.
2002-08-12 02:02:20 +00:00

149 lines
3.8 KiB
C

#if defined(LIBC_SCCS) && !defined(lint)
static char sccsid[] = "@(#)rtime.c 2.2 88/08/10 4.0 RPCSRC; from 1.8 88/02/08 SMI";
#endif
/*
* Sun RPC is a product of Sun Microsystems, Inc. and is provided for
* unrestricted use provided that this legend is included on all tape
* media and as a part of the software program in whole or part. Users
* may copy or modify Sun RPC without charge, but are not authorized
* to license or distribute it to anyone else except as part of a product or
* program developed by the user.
*
* SUN RPC IS PROVIDED AS IS WITH NO WARRANTIES OF ANY KIND INCLUDING THE
* WARRANTIES OF DESIGN, MERCHANTIBILITY AND FITNESS FOR A PARTICULAR
* PURPOSE, OR ARISING FROM A COURSE OF DEALING, USAGE OR TRADE PRACTICE.
*
* Sun RPC is provided with no support and without any obligation on the
* part of Sun Microsystems, Inc. to assist in its use, correction,
* modification or enhancement.
*
* SUN MICROSYSTEMS, INC. SHALL HAVE NO LIABILITY WITH RESPECT TO THE
* INFRINGEMENT OF COPYRIGHTS, TRADE SECRETS OR ANY PATENTS BY SUN RPC
* OR ANY PART THEREOF.
*
* In no event will Sun Microsystems, Inc. be liable for any lost revenue
* or profits or other special, indirect and consequential damages, even if
* Sun has been advised of the possibility of such damages.
*
* Sun Microsystems, Inc.
* 2550 Garcia Avenue
* Mountain View, California 94043
*/
/*
* Copyright (c) 1988 by Sun Microsystems, Inc.
*/
/*
* rtime - get time from remote machine
*
* gets time, obtaining value from host
* on the udp/time socket. Since timeserver returns
* with time of day in seconds since Jan 1, 1900, must
* subtract seconds before Jan 1, 1970 to get
* what unix uses.
*/
#include <stdio.h>
#include <unistd.h>
#include <rpc/rpc.h>
#include <rpc/clnt.h>
#include <sys/types.h>
#include <sys/poll.h>
#include <sys/socket.h>
#include <sys/time.h>
#include <rpc/auth_des.h>
#include <errno.h>
#include <netinet/in.h>
#define NYEARS (u_long)(1970 - 1900)
#define TOFFSET (u_long)(60*60*24*(365*NYEARS + (NYEARS/4)))
static void do_close (int);
static void
do_close (int s)
{
int save;
save = errno;
__close (s);
__set_errno (save);
}
int
rtime (struct sockaddr_in *addrp, struct rpc_timeval *timep,
struct rpc_timeval *timeout)
{
int s;
struct pollfd fd;
int milliseconds;
int res;
/* RFC 868 says the time is transmitted as a 32-bit value. */
uint32_t thetime;
struct sockaddr_in from;
int fromlen;
int type;
if (timeout == NULL)
type = SOCK_STREAM;
else
type = SOCK_DGRAM;
s = __socket (AF_INET, type, 0);
if (s < 0)
return (-1);
addrp->sin_family = AF_INET;
addrp->sin_port = htons (IPPORT_TIMESERVER);
if (type == SOCK_DGRAM)
{
res = __sendto (s, (char *) &thetime, sizeof (thetime), 0,
(struct sockaddr *) addrp, sizeof (*addrp));
if (res < 0)
{
do_close (s);
return -1;
}
milliseconds = (timeout->tv_sec * 1000) + (timeout->tv_usec / 1000);
fd.fd = s;
fd.events = POLLIN;
do
res = __poll (&fd, 1, milliseconds);
while (res < 0 && errno == EINTR);
if (res <= 0)
{
if (res == 0)
__set_errno (ETIMEDOUT);
do_close (s);
return (-1);
}
fromlen = sizeof (from);
res = __recvfrom (s, (char *) &thetime, sizeof (thetime), 0,
(struct sockaddr *) &from, &fromlen);
do_close (s);
if (res < 0)
return -1;
}
else
{
if (__connect (s, (struct sockaddr *) addrp, sizeof (*addrp)) < 0)
{
do_close (s);
return -1;
}
res = __read (s, (char *) &thetime, sizeof (thetime));
do_close (s);
if (res < 0)
return (-1);
}
if (res != sizeof (thetime))
{
__set_errno (EIO);
return -1;
}
thetime = ntohl (thetime);
timep->tv_sec = thetime - TOFFSET;
timep->tv_usec = 0;
return 0;
}
libc_hidden_def (rtime)