usr.sbin/bootp/common/tzone.c

   1 /*      $NetBSD: tzone.c,v 1.4 1998/03/14 04:39:55 lukem Exp $  */
   2
   3 #include <sys/cdefs.h>
   4 #ifndef lint
   5 __RCSID("$NetBSD: tzone.c,v 1.4 1998/03/14 04:39:55 lukem Exp $");
   6 #endif
   7
   8 /*
   9  * tzone.c - get the timezone
  10  *
  11  * This is shared by bootpd and bootpef
  12  */
  13
  14 #include <sys/types.h>
  15
  16 #ifdef  SVR4
  17 /* XXX - Is this really SunOS specific? -gwr */
  18 /* This is in <time.h> but only visible if (__STDC__ == 1). */
  19 extern long timezone;
  20 #else /* SVR4 */
  21 /* BSD or SunOS */
  22 # include <sys/time.h>
  23 # include <syslog.h>
  24 #endif /* SVR4 */
  25
  26 #include "bptypes.h"
  27 #include "report.h"
  28 #include "tzone.h"
  29
  30 /* This is what other modules use. */
  31 int32 secondswest;
  32
  33 /*
  34  * Get our timezone offset so we can give it to clients if the
  35  * configuration file doesn't specify one.
  36  */
  37 void
  38 tzone_init(void)
  39 {
  40 #ifdef  SVR4
  41         /* XXX - Is this really SunOS specific? -gwr */
  42         secondswest = timezone;
  43 #else /* SVR4 */
  44         struct timezone tzp;            /* Time zone offset for clients */
  45         struct timeval tp;                      /* Time (extra baggage) */
  46         if (gettimeofday(&tp, &tzp) < 0) {
  47                 secondswest = 0;                /* Assume GMT for lack of anything better */
  48                 report(LOG_ERR, "gettimeofday: %s", get_errmsg());
  49         } else {
  50                 secondswest = 60L * tzp.tz_minuteswest; /* Convert to seconds */
  51         }
  52 #endif /* SVR4 */
  53 }