Updated copyright notices to include the year 2018.

Updated copyright notices to include the year 2017.

global: freshen copyright git ls-files | xargs perl -p -i -e 's/(\d+)-201[0-5]/$1-2016/g;s/ (201[0-5]) Dovecot/ $1-2016 Dovecot/'

lib: Avoid race conditions in mkdir*() if directory is being deleted at the same time. Mainly this allows the call to return failure silently without logging unnecessary errors.

global: freshen copyright Robomatically: git ls-files | xargs perl -p -i -e 's/(\d+)-201[0-4]/$1-2015/g;s/ (201[0-4]) Dovecot/ $1-2015 Dovecot/' Happy 2015 everyone! Signed-off-by: Phil Carmody <phil@dovecot.fi>

mkdir_parents(): Handle mkdir() EEXIST errors that may happen during race conditions. We don't care about EEXIST errors that happen when trying to mkdir() parent directories, only if it happens when mkdir()ing the last directory.

Updated copyright notices to include year 2014.

Oops :) Update copyrights to 2013 without breaking all .c files.

Updated copyright notices to include year 2013.

Added stat_first_parent() helper function.

mkdir_parents_chown(): If gid is set, make sure setgid-bit isn't copied from parent.

Marked functions parameters that are allowed to be NULL. Some APIs were also changed. The non-obvious APIs where NULL parameter was changed to "" are master_service_init() and auth_master_user_list_init(). These checks can currently be enabled only on a patched clang: http://llvm.org/bugs/show_bug.cgi?id=6786

Updated copyright notices to include year 2012.