[lwip-users] bug fix - possible access violation in case of error in demo application

[Avner BenHanoch]

Hi All,

Attached diff file contains bug fix for file: contrib-1.4.0.rc1/ports/unix/proj/minimal/mintapif.c 

(The current code sends un-initialized char array to perror).

To reach the error situation, you can do the following:

  1. sudo chmod 666 /dev/net/tun

  2. cd contrib-1.4.0.rc1/ports/unix/proj/minimal/ && make

  3. run the ./echop demo application without root privileges

[at the end remember to restore: sudo chmod 600 /dev/net/tun ]

Regards,

  Avner

mintapif.diff
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