On Fri, Jul 16, 2021 at 11:49 PM podolica <podol...@protonmail.com> wrote:
> On my OpenBSD installation (6.9) one of the log files created by login(1) > seems to be a binary file: > $ less /var/log/failedlogin > "failedlogin" may be a binary file. See it anyway? > ... > What can I learn from this logfile? > A lot of repeating null bytes and "ttyC2" and "ttyC3" does not seems > to be very informative. > > Is this an error? > No, it's not an error. That file is specific to the 'login' command, specifically the source file /usr/src/usr.bin/login/failedlogin.c and consists of an array of the 'badlogin' structure specified there. If you want to dump its contents in a more readable format then you should write a small program to do so in C or some other language which can easily handle binary files. Philip Guenther
