scratch/lwip
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

Fixed bug #27871: Calling tcp_abort() in recv callback can lead to accessing unallocated memory. As a consequence, ERR_ABRT means the application has called tcp_abort()!

Browse Source
This commit is contained in:
goldsimon
2010-01-27 17:22:06 +00:00
parent 606fed8896
commit 0644c4c08e
5 changed files with 64 additions and 18 deletions
Download Patch File Download Diff File Expand all files Collapse all files

5
doc/rawapi.txt
View File

@@ -278,6 +278,11 @@ again when the connection has been idle for a while.
Aborts the connection by sending a RST (reset) segment to the remote
host. The pcb is deallocated. This function never fails.
ATTENTION: When calling this from one of the TCP callbacks, make
sure you always return ERR_ABRT (and never return ERR_ABRT otherwise
or you will risk accessing deallocated memory or memory leaks!
If a connection is aborted because of an error, the application is
alerted of this event by the err callback. Errors that might abort a
connection are when there is a shortage of memory. The callback