pam_tally2 --reset: avoid creating a missing tallylog file

There is no need for pam_tally2 in --reset=0 mode to create a missing
tallylog file because its absence has the same meaning as its existence
with the appropriate entry reset.

This was not a big deal until useradd(8) from shadow suite release 4.5
started to invoke /sbin/pam_tally2 --reset routinely regardless of PAM
configuration.

The positive effect of this change is noticeable when using tools like
cpio(1) that cannot archive huge sparse files efficiently.

* modules/pam_tally2/pam_tally2.c [MAIN] (main) <cline_user>: Stat
cline_filename when cline_reset == 0, exit early if the file is missing.

0 files changed, 0 insertions, 0 deletions