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-rw-r--r--c/src/exec/librpc/src/rpc/rtime.c157
1 files changed, 157 insertions, 0 deletions
diff --git a/c/src/exec/librpc/src/rpc/rtime.c b/c/src/exec/librpc/src/rpc/rtime.c
index e69de29bb2..b37d6bdb52 100644
--- a/c/src/exec/librpc/src/rpc/rtime.c
+++ b/c/src/exec/librpc/src/rpc/rtime.c
@@ -0,0 +1,157 @@
+/*
+ * 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 <stdlib.h>
+#include <string.h>
+#include <unistd.h>
+#include <errno.h>
+#include <sys/types.h>
+#include <sys/socket.h>
+#include <sys/time.h>
+#include <netinet/in.h>
+#include <stdio.h>
+#include <netdb.h>
+
+#if defined(LIBC_SCCS) && !defined(lint)
+/* from: static char sccsid[] = "@(#)rtime.c 2.2 88/08/10 4.0 RPCSRC; from 1.8 88/02/08 SMI"; */
+static const char rcsid[] = "$FreeBSD: src/lib/libc/rpc/rtime.c,v 1.5 2000/01/27 23:06:41 jasone Exp $";
+#endif
+
+extern int _rpc_dtablesize __P(( void ));
+
+#define NYEARS (unsigned long)(1970 - 1900)
+#define TOFFSET (unsigned long)(60*60*24*(365*NYEARS + (NYEARS/4)))
+
+static void do_close __P(( int ));
+
+int
+rtime(addrp, timep, timeout)
+ struct sockaddr_in *addrp;
+ struct timeval *timep;
+ struct timeval *timeout;
+{
+ int s;
+ fd_set readfds;
+ int res;
+ unsigned long thetime;
+ struct sockaddr_in from;
+ int fromlen;
+ int type;
+ struct servent *serv;
+
+ 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;
+
+ /* TCP and UDP port are the same in this case */
+ if ((serv = getservbyname("time", "tcp")) == NULL) {
+ return(-1);
+ }
+
+ addrp->sin_port = serv->s_port;
+
+ 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);
+ }
+ do {
+ FD_ZERO(&readfds);
+ FD_SET(s, &readfds);
+ res = select(_rpc_dtablesize(), &readfds,
+ (fd_set *)NULL, (fd_set *)NULL, timeout);
+ } while (res < 0 && errno == EINTR);
+ if (res <= 0) {
+ if (res == 0) {
+ 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)) {
+ errno = EIO;
+ return(-1);
+ }
+ thetime = ntohl(thetime);
+ timep->tv_sec = thetime - TOFFSET;
+ timep->tv_usec = 0;
+ return(0);
+}
+
+static void
+do_close(s)
+ int s;
+{
+ int save;
+
+ save = errno;
+ (void)_close(s);
+ errno = save;
+}