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gpg: Allow to freeze faked system time.

Browse source 
* g10/gpg.c (main): If the parameter for --faked-system-time
ends with a '!', freeze time at the specified point.
* common/gettime.c (gnupg_set_time): Allow to freeze the time
at an arbitrary time instead of only the current time.
* doc/gpg.texi: Update documentation for --faked-system-time.
--

This patch allows the user to modify the behavior of the
--faked-system-time option: by appending a '!' to the parameter,
time in GnuPG will be frozen at the specified time, instead of
advancing normally from that time onward.

Signed-off-by: Damien Goutte-Gattat <dgouttegattat@incenp.org>
This commit is contained in:
Damien Goutte-Gattat 2017-01-18 18:52:12 +01:00 • committed by Justus Winter
parent 55c9212a23
commit 3daeef702b
3 changed files with 16 additions and 3 deletions
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14
g10/gpg.c
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@ -3493,10 +3493,20 @@ main (int argc, char **argv)
case oFakedSystemTime:
{
time_t faked_time = isotime2epoch (pargs.r.ret_str);
size_t len = strlen (pargs.r.ret_str);
int freeze = 0;
time_t faked_time;
if (len > 0 && pargs.r.ret_str[len-1] == '!')
{
freeze = 1;
pargs.r.ret_str[len-1] = '\0';
}
faked_time = isotime2epoch (pargs.r.ret_str);
if (faked_time == (time_t)(-1))
faked_time = (time_t)strtoul (pargs.r.ret_str, NULL, 10);
gnupg_set_time (faked_time, 0);
gnupg_set_time (faked_time, freeze);
}
break;