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tzone.c revision 1.2 
      1 /*
      2  * tzone.c - get the timezone
      3  *
      4  * This is shared by bootpd and bootpef
      5  */
      6 
      7 #include <sys/types.h>
      8 
      9 #ifdef	SVR4
     10 /* XXX - Is this really SunOS specific? -gwr */
     11 /* This is in <time.h> but only visible if (__STDC__ == 1). */
     12 extern long timezone;
     13 #else /* SVR4 */
     14 /* BSD or SunOS */
     15 # include <sys/time.h>
     16 # include <syslog.h>
     17 #endif /* SVR4 */
     18 
     19 #include "bptypes.h"
     20 #include "report.h"
     21 #include "tzone.h"
     22 
     23 /* This is what other modules use. */
     24 int32 secondswest;
     25 
     26 /*
     27  * Get our timezone offset so we can give it to clients if the
     28  * configuration file doesn't specify one.
     29  */
     30 void
     31 tzone_init()
     32 {
     33 #ifdef	SVR4
     34 	/* XXX - Is this really SunOS specific? -gwr */
     35 	secondswest = timezone;
     36 #else /* SVR4 */
     37 	struct timezone tzp;		/* Time zone offset for clients */
     38 	struct timeval tp;			/* Time (extra baggage) */
     39 	if (gettimeofday(&tp, &tzp) < 0) {
     40 		secondswest = 0;		/* Assume GMT for lack of anything better */
     41 		report(LOG_ERR, "gettimeofday: %s", get_errmsg());
     42 	} else {
     43 		secondswest = 60L * tzp.tz_minuteswest;	/* Convert to seconds */
     44 	}
     45 #endif /* SVR4 */
     46 }
     47