Re: [PATCH 5/5] log: do not segfault on gmtime errors

2014-03-26 Thread Jeff King
On Wed, Mar 26, 2014 at 02:01:21PM -0700, Junio C Hamano wrote: > > I don't know how important that is. This is such a minor feature that it > > is not worth a lot of maintenance headache in the test. But I also do > > not know if this is going to be the last report, or we will have a bunch > > of

Re: [PATCH 5/5] log: do not segfault on gmtime errors

2014-03-26 Thread Junio C Hamano
Jeff King writes: > On Wed, Mar 26, 2014 at 11:58:49AM -0700, Junio C Hamano wrote: > >> > Unlike the FreeBSD thing that René brought up, this is not a problem in >> > the code, but just in the test. So I think our options are basically: >> > >> > 1. Scrap the test as unportable. >> > >> > 2.

Re: [PATCH 5/5] log: do not segfault on gmtime errors

2014-03-26 Thread Jeff King
On Wed, Mar 26, 2014 at 11:58:49AM -0700, Junio C Hamano wrote: > > Unlike the FreeBSD thing that René brought up, this is not a problem in > > the code, but just in the test. So I think our options are basically: > > > > 1. Scrap the test as unportable. > > > > 2. Hard-code a few expected val

Re: [PATCH 5/5] log: do not segfault on gmtime errors

2014-03-26 Thread Junio C Hamano
Jeff King writes: > On Wed, Mar 26, 2014 at 11:05:59AM +, Charles Bailey wrote: > >> On Mon, Feb 24, 2014 at 02:49:05AM -0500, Jeff King wrote: >> > +# date is within 2^63-1, but enough to choke glibc's gmtime >> > +test_expect_success 'absurdly far-in-future dates produce sentinel' ' >> > +

Re: [PATCH 5/5] log: do not segfault on gmtime errors

2014-03-26 Thread Jeff King
On Wed, Mar 26, 2014 at 11:05:59AM +, Charles Bailey wrote: > On Mon, Feb 24, 2014 at 02:49:05AM -0500, Jeff King wrote: > > +# date is within 2^63-1, but enough to choke glibc's gmtime > > +test_expect_success 'absurdly far-in-future dates produce sentinel' ' > > + commit=$(munge_author_dat

Re: [PATCH 5/5] log: do not segfault on gmtime errors

2014-03-26 Thread Charles Bailey
On Mon, Feb 24, 2014 at 02:49:05AM -0500, Jeff King wrote: > +# date is within 2^63-1, but enough to choke glibc's gmtime > +test_expect_success 'absurdly far-in-future dates produce sentinel' ' > + commit=$(munge_author_date HEAD 99) && > + echo "Thu Jan 1 00:00:00 1970 +00

Re: [PATCH 5/5] log: do not segfault on gmtime errors

2014-03-24 Thread Jeff King
On Mon, Mar 24, 2014 at 11:03:42PM +0100, René Scharfe wrote: > >If the result is all-zeroes, can we check for that case instead? I > >suppose that will eventually create a "trap" at midnight on January 1st > >of the year 0 (though I am not sure such a date is even meaningful, > >given the history

Re: [PATCH 5/5] log: do not segfault on gmtime errors

2014-03-24 Thread René Scharfe
Am 24.03.2014 22:33, schrieb Jeff King: On Sat, Mar 22, 2014 at 10:32:37AM +0100, René Scharfe wrote: @@ -184,8 +184,10 @@ const char *show_date(unsigned long time, int tz, enum date_mode mode) tz = local_tzoffset(time); tm = time_to_tm(time, tz); - if (!tm) -

Re: [PATCH 5/5] log: do not segfault on gmtime errors

2014-03-24 Thread Jeff King
On Sat, Mar 22, 2014 at 10:32:37AM +0100, René Scharfe wrote: > >This test is of questionable portability, since we are depending on > >gmtime's arbitrary point to decide that our input is crazy and return > >NULL. The value is sufficiently large that I'd expect most to do so, > >though, so it may

Re: [PATCH 5/5] log: do not segfault on gmtime errors

2014-03-22 Thread René Scharfe
Am 24.02.2014 08:49, schrieb Jeff King: Many code paths assume that show_date and show_ident_date cannot return NULL. For the most part, we handle missing or corrupt timestamps by showing the epoch time t=0. However, we might still return NULL if gmtime rejects the time_t we feed it, resulting i