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From: Ingo Schwarze <>
Subject: Re: makewhatis: segfault in dbadd when using -a
Date: Mon, 6 Sep 2021 16:50:47 +0200	[thread overview]
Message-ID: <> (raw)
In-Reply-To: <>

Hi Lukas,

Ingo Schwarze wrote on Thu, Aug 19, 2021 at 07:11:50PM +0200:

> Uh oh.  So there *is* a real-world use case for symlinks to
> directories.
> Anyway, if systems use that, considering whether it can be supported
> with resonable effort makes sense.  No guarantee, of course.
> I'll think about it for a bit.

So, an acceptable way to support this probably exists, using the
FTS_FOLLOW option of the function fts_set(3).  That isn't completely
trivial in this code which is already somewhat convoluted, but it
should not be excessively complicated either.  Then again, there
is a slight risk of breaking stuff while implementing it, and maybe
an even bigger risk that FTS_FOLLOW may not be completely portable -
i don't really know yet.

Besides, i need to limit the difficulty of changes i'm doing right
now or i will never get the next release out of the door.  So i
decided to postpone this particular feature until after release,
see the commit below.


Log Message:
TODO: let makewhatis(8) follow symbolic links to dirs

Modified Files:

Revision Data
Index: TODO
RCS file: /home/cvs/mandoc/mandoc/TODO,v
retrieving revision 1.316
retrieving revision 1.317
diff -LTODO -LTODO -u -p -r1.316 -r1.317
--- TODO
+++ TODO
@@ -286,6 +286,11 @@ are mere guesses, and some may be wrong.
 --- missing misc features ----------------------------------------------
+- let makewhatis(8) follow symbolic links to dirs below READ_ALLOWED_PATH
+  this may be feasible using fts_set(FTS_FOLLOW)
+  mail to sternenseemann 19 Aug 2021 19:11:50 +0200
+  loc *  exist **  algo **  size *  imp **
 - -T man does not handle eqn(7) and tbl(7)
   Stephen Gregoratto 16 Feb 2020 01:28:07 +1100
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  reply	other threads:[~2021-09-06 14:50 UTC|newest]

Thread overview: 7+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-08-06 23:53 sternenseemann
2021-08-11 15:09 ` Ingo Schwarze
2021-08-18 22:02   ` sternenseemann
2021-08-19 17:11     ` Ingo Schwarze
2021-09-06 14:50       ` Ingo Schwarze [this message]
2021-09-06 15:52         ` sternenseemann
2021-09-06 17:12           ` Ingo Schwarze

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