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Re: lib/57588: gmtime(3): value of %s depends on TZ environment variable
The following reply was made to PR lib/57588; it has been noted by GNATS.
From: Simon Gerraty <sjg%crufty.net@localhost>
To: gnats-bugs%netbsd.org@localhost
Cc: sjg%crufty.net@localhost
Subject: Re: lib/57588: gmtime(3): value of %s depends on TZ environment variable
Date: Sat, 19 Aug 2023 09:57:26 -0700
The real problem is mktime(3) (which strtime(3) uses for %s)
#include <sys/types.h>
#include <stdio.h>
#include <time.h>
int
main(void)
{
time_t now;
time_t utime;
time_t ltime;
time(&now);
utime = mktime(gmtime(&now));
ltime = mktime(localtime(&now));
printf("now=\t\t%ld\ngmtime=\t\t%ld\nlocaltime=\t%ld\n",
now, utime, ltime);
return 0;
}
utime and ltime should be the same as now, but
utime is not:
now= 1692464199
gmtime= 1692492999
localtime= 1692464199
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