[Qemu-devel] [Bug 1089496] Re: qemu doesn't set vnc port correctly

[Daniel Berrange]

The problem with this is that the behaviour is inherently ambiguous. We
have no way to distinguish whether a user specifying ":5804" wants  port
11704 or port 5804, so it is not in fact easy to fix.

If we were writing this again from scratch I would avoid the offset
concept entirely and always require absolute port, but given where we
are, unconditionally treating the port number as an offset relative to
5900 is the only sane approach, unless we introduce completely new
syntax.

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https://bugs.launchpad.net/bugs/1089496

Title:
  qemu doesn't set vnc port correctly

Status in QEMU:
  Invalid

Bug description:
  Qemu Version: 1.1.1

  In the past it was possible to set the port for vnc with:
  -vnc :1
  That would mean the port would be 5901, Starting from 5900 plus the given 
number. However, it was also possible to set the port directly with a custom 
given port. Usually i set the port to something like 5801. With qemu-1.1.1 (and 
maybe prior versions too, i usually use spice) that's not possible anymore. For 
example:
  -vnc 192.168.1.1:5804
  Here the 'real' port would be 11704 (that's 5900 + 5804). I'm sure that 
worked correctly in the past and i'm pretty sure it's easy to fix.

  Would be nice if we can fix that.

  System Info:
  Portage 2.1.11.31 (default/linux/amd64/10.0/no-multilib, gcc-4.5.4, 
glibc-2.15-r3, 3.5.7-gentoo x86_64)
  =================================================================
  8f5b300da8f952f8bbdd956b7d782c5cdb61dd06fd45f7755b8cfea51937a1f8

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