Re: [nmh-workers] closefds() _before_ fork?

[Ken Hornstein]

>> It's not the only one, e.g. docs/historical/mh-6.8.5/uip/post.c has
>>
>>     2622             if (fd != 0)
>>     2623                 (void) dup2 (fd, 0);
>>     2624             (void) freopen ("/dev/null", "w", stdout);
>>     2625             (void) freopen ("/dev/null", "w", stderr);
>>     2626             if (fd != 3)        /* backwards compatible... */
>>     2627                 (void) dup2 (fd, 3);
>>     2628             closefds (4);
>>
>> Note the comment.
>
>The *real* WTF there is that the code doesn't actually know if fd 3 is
>known to be open on a file that should, or if it's just a stray leaked fd.

Wow.  So do any greybeards out there have any idea of why this is there??
Clearly this was a thing, but I have no idea why.  I see that same code
in MH 5, so it's been that way for approximately forever.

--Ken