Re: makewhatis: segfault in dbadd when using -a

[Ingo Schwarze <schwarze@usta.de>]

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.

Yours,
  Ingo


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

Modified Files:
--------------
    mandoc:
        TODO

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
   also https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=901636
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