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tzone.c revision 1.1 
      1 /*
      2  * tzone.c - get the timezone
      3  *
      4  * This is shared by bootpd and bootpef
      5  */
      6 
      7 #ifdef	SVR4
      8 /* XXX - Is this really SunOS specific? -gwr */
      9 /* This is in <time.h> but only visible if (__STDC__ == 1). */
     10 extern long timezone;
     11 #else /* SVR4 */
     12 /* BSD or SunOS */
     13 # include <sys/time.h>
     14 # include <syslog.h>
     15 #endif /* SVR4 */
     16 
     17 #include "bptypes.h"
     18 #include "report.h"
     19 #include "tzone.h"
     20 
     21 /* This is what other modules use. */
     22 int32 secondswest;
     23 
     24 /*
     25  * Get our timezone offset so we can give it to clients if the
     26  * configuration file doesn't specify one.
     27  */
     28 void
     29 tzone_init()
     30 {
     31 #ifdef	SVR4
     32 	/* XXX - Is this really SunOS specific? -gwr */
     33 	secondswest = timezone;
     34 #else /* SVR4 */
     35 	struct timezone tzp;		/* Time zone offset for clients */
     36 	struct timeval tp;			/* Time (extra baggage) */
     37 	if (gettimeofday(&tp, &tzp) < 0) {
     38 		secondswest = 0;		/* Assume GMT for lack of anything better */
     39 		report(LOG_ERR, "gettimeofday: %s", get_errmsg());
     40 	} else {
     41 		secondswest = 60L * tzp.tz_minuteswest;	/* Convert to seconds */
     42 	}
     43 #endif /* SVR4 */
     44 }
     45