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: NoneSeverity: 3 - Normal
Item Group: NoneStatus: None
Privacy: PublicAssigned to: None
Open/Closed: OpenPlanned 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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