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diff -ruN htpdate-0.8.0-old/htpdate.c htpdate-0.8.0-new/htpdate.c
--- htpdate-0.8.0-old/htpdate.c 2005-05-26 23:32:18.000000000 +0200
+++ htpdate-0.8.0-new/htpdate.c 2005-06-02 04:33:33.000000000 +0200
@@ -243,7 +243,7 @@
printf("htpdate version %s\n", version);
printf("\
Usage: htpdate [-0|-1] [-a|-q|-s] [-d|-D] [-h|-l] [-i pid file] [-m minpoll]\n\
- [-M maxpoll] [-P <proxyserver>[:port]] <host[:port]> ...\n\n\
+ [-M maxpoll] [-C limit] [-P <proxyserver>[:port]] <host[:port]> ...\n\n\
-0 HTTP/1.0 request (default)\n\
-1 HTTP/1.1 request\n\
-a adjust time smoothly\n\
@@ -257,6 +257,8 @@
-m minimum poll interval (2^m)\n\
-M maximum poll interval (2^M)\n\
-P proxy server\n\
+ -C time delta limit in server responses (in seconds)\n\
+ default: 1 year, unlimited: 0\n\
host web server hostname or ip address\n\
port port number (default 80 and 8080 for proxy server)\n\n");
@@ -271,6 +273,7 @@
int port, proxyport = 8080;
int sumtime, numservers, validtime, goodtime, mean, i;
double timeavg;
+ int timedeltalimit = YEAR;
unsigned int nap = 0, when = 500000;
unsigned int minsleep = 10, maxsleep = 18, sleeptime = minsleep;
char setmode = 0, httpversion = 0, try, param;
@@ -283,7 +286,7 @@
/* Parse the command line switches and arguments */
- while ( (param = getopt(argc, argv, "01adhi:lm:qsDM:P:") ) != -1)
+ while ( (param = getopt(argc, argv, "01adhi:lm:qsDM:P:C:") ) != -1)
switch (param)
{
case '0': /* adjust time */
@@ -340,6 +343,12 @@
}
}
break;
+ case 'C': /* time delta limit in server responses */
+ if ( (timedeltalimit = atoi(optarg) ) < 0 ) {
+ printlog( 1, "Invalid time delta limit" );
+ exit(1);
+ }
+ break;
case '?':
return 1;
default:
@@ -458,10 +467,12 @@
try--;
} while ( timestamp && try && daemonize );
- /* Only include valid responses in timedelta[], |delta time| < year */
- if ( ( timestamp > -YEAR ) && ( timestamp < YEAR ) ) {
- timedelta[validtime] = timestamp;
+ timedelta[validtime] = timestamp;
+ /* Only include valid responses in timedelta[], |delta time| < validlimit */
+ if ( ( timedeltalimit == 0 ) || ( ( timestamp > -timedeltalimit ) && ( timestamp < timedeltalimit ) ) ) {
validtime++;
+ } else {
+ printlog( 0, "Invalid server response (host: %s, time delta: %d, limit: %d)", host, timestamp, timedeltalimit);
}
/* Sleep for a while, unless we detected a time offset */
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