* Required for use by the Cygnus krb.a.
*/
+
#include "k5-int.h"
+
+#ifndef _MSDOS
#include <sys/time.h>
krb5_ui_4 INTERFACE
*usecptr = now.tv_usec;
return now.tv_sec;
}
+
+#else /* _MSDOS */
+
+/*
+ * Originally written by John Gilmore, Cygnus Support, May '94.
+ * Public Domain.
+ */
+
+#include <time.h>
+#include <sys/timeb.h>
+#include <dos.h>
+#include <string.h>
+
+/*
+ * Due to the fact that DOS time can be unreliable we have reverted
+ * to using the AT hardware clock and converting it to Unix time.
+ */
+static long win_time_get_epoch(void);
+
+krb5_ui_4 INTERFACE
+unix_time_gmt_unixsec (usecptr)
+ krb5_ui_4 *usecptr;
+{
+ struct tm tm;
+ union _REGS inregs; /* For calling BIOS */
+ union _REGS outregs;
+ struct _timeb now;
+ time_t time;
+ long convert; /* MSC 7.00 bug work around */
+ krb5_ui_4 retval; /* What we return */
+
+ _ftime(&now); /* Daylight savings time */
+
+ /* Get time from AT hardware clock INT 0x1A, AH=2 */
+ memset(&inregs, 0, sizeof(inregs));
+ inregs.h.ah = 2;
+ _int86(0x1a, &inregs, &outregs);
+
+ /* 0x13 = decimal 13, hence the decoding below */
+ tm.tm_sec = 10 * ((outregs.h.dh & 0xF0) >> 4) + (outregs.h.dh & 0x0F);
+ tm.tm_min = 10 * ((outregs.h.cl & 0xF0) >> 4) + (outregs.h.cl & 0x0F);
+ tm.tm_hour = 10 * ((outregs.h.ch & 0xF0) >> 4) + (outregs.h.ch & 0x0F);
+
+ /* Get date from AT hardware clock INT 0x1A, AH=4 */
+ memset(&inregs, 0, sizeof(inregs));
+ inregs.h.ah = 4;
+ _int86(0x1a, &inregs, &outregs);
+
+ tm.tm_mday = 10 * ((outregs.h.dl & 0xF0) >> 4) + (outregs.h.dl & 0x0F);
+ tm.tm_mon = 10 * ((outregs.h.dh & 0xF0) >> 4) + (outregs.h.dh & 0x0F) - 1;
+ tm.tm_year = 10 * ((outregs.h.cl & 0xF0) >> 4) + (outregs.h.cl & 0x0F);
+ tm.tm_year += 100 * ((10 * (outregs.h.ch & 0xF0) >> 4)
+ + (outregs.h.ch & 0x0F) - 19);
+
+ tm.tm_wday = 0;
+ tm.tm_yday = 0;
+ tm.tm_isdst = now.dstflag;
+
+ time = mktime(&tm);
+
+ convert = win_time_get_epoch();
+ retval = time + convert;
+
+ if (usecptr)
+ *usecptr = retval;
+
+ return retval;
+}
+/*
+ * This routine figures out the current time epoch and returns the
+ * conversion factor. It exists because
+ * Microloss screwed the pooch on the time() and _ftime() calls in
+ * its release 7.0 libraries. They changed the epoch to Dec 31, 1899!
+ * Idiots... We try to cope.
+ */
+
+static struct tm jan_1_70 = {0, 0, 0, 1, 0, 70};
+static long epoch = 0;
+static int epoch_set = 0;
+
+static long
+win_time_get_epoch()
+{
+
+ if (!epoch_set) {
+ epoch = 0 - mktime (&jan_1_70); /* Seconds til 1970 localtime */
+ epoch += _timezone; /* Seconds til 1970 GMT */
+ epoch_set = 1;
+ }
+ return epoch;
+}
+
+#endif