[9fans] Forwarded attachment...

[andrey mirtchovski <mirtchov@cpsc.ucalgary.ca>]

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This patch fixes links crashing terminals. I lost all my work from yesterday so I
couldn't get it on the web.

The problem isn't so bad if you have more memory (>= 512 with untouched
kernelpercent) where only links will crash. that's why we were able to debug
it yesterday...

andrey

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I don't know whether that's the same bug, but links crashed on
nikkei.com due to a memcpy() being called with a nil second argument
in dns.c:49.  I've worked around it as follows:

	diff /n/dump/2003/1218/usr/andrey/src/links-ape/dns.c /usr/andrey/src/links-ape/dns.c
	47,48c47,49
	< 		nogethostbyaddr: if (!(hst = gethostbyname((char *)name)))
	< 			return -1;
	---
	> nogethostbyaddr:
	> 	if (!(hst = gethostbyname((char *)name)) || !hst->h_addr_list[0])
	> 		return -1;

also add this one:

	diff /n/dump/2003/1218/usr/andrey/src/links-ape/config.h /usr/andrey/src/links-ape/config.h
	22a23
	> #define HAVE_GETHOSTBYADDR 1

Can you verify if this fixes links' crashing?

The problem with nikkei not displaying proper fonts is because they're
using Shift_GIS encoding, which Links doesn't know how to handle.  I
should port lunix' "iconv" which knows everything there is to know
about encodings, and will make links use that instead of its own
(limited) conversion tables, then it'll handle Shift_JIS and many more
sites as it should.

That won't happen immediately, though...

andrey