79 lines
1.2 KiB
C
79 lines
1.2 KiB
C
/* $Header$ */
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#ifdef __BSD4_2
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struct timeval {
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long tv_sec, tv_usec;
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};
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struct timezone {
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int tz_minuteswest, tz_dsttime;
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};
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#else
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#ifndef __USG
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#include <sys/types.h>
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struct timeb
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{
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time_t time;
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ushort millitm;
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short timezone;
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short dstflag;
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};
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#endif
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#endif
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#ifdef __USG
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long timezone = -1 * 60;
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int daylight = 1;
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char *tzname[] = {"MET", "MDT",};
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#endif
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long __timezone = -1 * 60;
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int __daylight = 1;
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char *__tzname[] = {"MET", "MDT", };
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tzset()
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{
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#ifdef __BSD4_2
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struct timeval tval;
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struct timezone tzon;
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gettimeofday(&tval, &tzon);
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__timezone = tzon.tz_minuteswest * 60L;
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__daylight = tzon.tz_dsttime;
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#else
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#ifndef __USG
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struct timeb time;
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ftime(&time);
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__timezone = time.timezone*60L;
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__daylight = time.dstflag;
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#endif
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#endif
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{
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extern char *getenv();
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register char *p = getenv("TZ");
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if (p && *p) {
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register int n = 0;
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int sign = 1;
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strncpy(__tzname[0], p, 3);
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if (*(p += 3) == '-') {
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sign = -1;
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p++;
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}
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while(*p >= '0' && *p <= '9')
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n = 10 * n + (*p++ - '0');
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n *= sign;
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__timezone = ((long)(n * 60)) * 60;
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__daylight = (*p != '\0');
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strncpy(__tzname[1], p, 3);
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}
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}
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#ifdef __USG
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timezone = __timezone;
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daylight = __daylight;
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tzname[0] = __tzname[0];
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tzname[1] = __tzname[1];
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#endif
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}
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