40 lines
681 B
C
40 lines
681 B
C
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/*
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* tzset.c
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*
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* Quick and dirty emulation of tzset(), tzname[], and daylight
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* for old BSD systems without it.
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*
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* Thanks to Rick Adams, rick@uunet.uu.net, for the basics.
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*
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* BUGS:
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* Totally ignores the value of the TZ environment variable.
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*/
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#if 0
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#include <time.h>
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#endif
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#include <sys/time.h>
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static char tz1[1024];
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static char tz2[1024];
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/* external variables */
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char *tzname[2] = {
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tz1, tz2
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};
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int daylight;
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extern char *timezone();
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void
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tzset()
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{
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struct timeval tp;
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struct timezone tz;
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(void) gettimeofday(&tp, &tz);
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(void) strcpy(tz1, timezone(tz.tz_minuteswest, 0));
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(void) strcpy(tz2, timezone(tz.tz_minuteswest, 1));
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daylight = tz.tz_dsttime;
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}
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