buglwIP - A Lightweight TCP/IP stack - Bugs: bug #48887, tcp-listen, udp & raw pcbs...

 
 

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bug #48887: tcp-listen, udp & raw pcbs need an 'err' callback

Submitted by:  Simon Goldschmidt <goldsimon>
Submitted on:  Wed 24 Aug 2016 07:26:43 PM UTC  
 
Category:  None Severity:  3 - Normal
Item Group:  None Status:  None
Privacy:  Public Assigned to:  None
Open/Closed:  Open Planned Release:  None
lwIP version:  git head

Wed 24 Aug 2016 07:26:43 PM UTC, original submission:

At least to notifiy an application of changed local address, these pcb types need an 'err' callback.

The current implementation for tcp-listen and udp is to silently change the address, but that doesn't work well for ipv6 and doesn't seem to match posix behaviour (where a listen socket bound to a specific address just doesn't receive further connections on address change) --> that should be changed, too (or at least be optional? - thanks to the holy grail of backwards compatibility)

Simon Goldschmidt <goldsimon>
Project Administrator

 

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