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Fix numeric IPv6 address handling

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This patch fix a issue with numeric IPv6 addresses in the
tftpd -a address[:port] option.

Since IPv6 addresses use colon ':' in differnt counts itself, we cannot detect,
if the last colon is a seperator, so it is needed to put the IPv6 address into
square brackets, e.g. [2001:db8::1], so a optional port assignment is
unambiguous.
The patch also allows to specify numeric IPv6 addresses in other places enclosed
in [], but in these cases it accept these also without [].

Signed-off-by: Karsten Keil <kkeil@suse.de>
Signed-off-by: H. Peter Anvin <hpa@zytor.com>
This commit is contained in:
Karsten Keil 2008-07-30 16:15:10 +02:00 • committed by H. Peter Anvin
parent c3a5c712e2
commit cfb85d4dec
4 changed files with 102 additions and 6 deletions
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4
tftpd/tftpd.8.in
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@ -83,6 +83,10 @@ option. The default is to listen to the
port specified in
.I /etc/services
on all local addresses.
.B Please note:
Numeric IPv6 adresses must be enclosed in square brackets
to avoid ambiguity with the optional port information.
.TP
.B \-c
Allow new files to be created. By default,