- zip_file_set_mtime() bug?, Andreas Falkenhahn (2017/11/15 16:48:10)
On 15.11.2017 at 18:39 Thomas Klausner wrote: > On Wed, Nov 15, 2017 at 05:48:07PM +0100, Andreas Falkenhahn wrote: >> I want to set the datestamp of a file inside a zip archive to >> 16-Sep-2017 08:34:56. This is my code: >> struct tm tm; >> tm.tm_sec = 56; >> tm.tm_min = 34; >> tm.tm_hour = 8; >> tm.tm_mday = 16; >> tm.tm_mon = 8; >> tm.tm_year = 117; >> tm.tm_isdst = -1; >> >> zip_file_set_mtime(arc, 0, mktime(&tm), 0); >> >> When I compile and run this code on Linux, Ubuntu shows the >> file date correctly as 16-Sep-2017 08:34:56. >> When I compile and run this code on Windows, however, Windows >> Explorer shows the file date as 16-Sep-2017 09:34:56, i.e. >> one hour later than what I passed to zip_file_set_mtime(). >> Is this a bug in libzip or am I doing something wrong here? > libzip doesn't behave differently in this code path for the two > operating systems. > I'd take a closer look at what you get from mktime() on the two > systems. It's the same. So when I open the zip archive created on Ubuntu with Windows Explorer, Explorer also reports 09:34:56 whereas Ubuntu reports 08:34:56. Any idea what is the reason for that? Why does Windows Explorer add an hour? -- Best regards, Andreas Falkenhahn mailto:andreas%falkenhahn.com@localhost
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