* lib/sgroupio.c: Add brackets.
* lib/sgroupio.c: Avoid implicit conversion of pointers / integers to booleans.
* lib/sgroupio.c: The changed, isopen, locked, and readonly fields of the db are booleans.
* lib/sgroupio.h, lib/sgroupio.c: sgr_file_present returns a bool.
* lib/sgroupio.h: Add protection against multiple inclusions.
* lib/port.c: Avoid multiple statement on the same line.
* lib/port.c: Add brackets and parenthesis.
* lib/port.c: Avoid assignments in comparisons.
* lib/port.c: Fix typo comparision -> comparison (in comment).
* lib/commonio.h: Include defines.h to get the definition of bool.
* lib/commonio.h: commonio_present returns a bool
* lib/commonio.c: Implement above changes.
* lib/commonio.c: add argument names in prototypes.
* lib/commonio.c: name_is_nis returns a bool.
* lib/commonio.c: nscd_need_reload is a bool.
* lib/commonio.c: Improve types (use size_t / pid_t when needed instead of int).
* lib/commonio.c: Avoid assignments in comparisons.
* lib/commonio.c: Add brackets and parenthesis.
* lib/commonio.c: Avoid implicit conversion of pointers / integers to booleans
* lib/commonio.c: The return values of utime is not checked on purpose.
* libmisc/ttytype.c: Avoid assignments in comparisons.
* libmisc/ttytype.c: Add brackets and parenthesis.
* libmisc/ttytype.c: The return values of fclose is not checked on purpose.
* libmisc/loginprompt.c: Add brackets.
* libmisc/loginprompt.c: Avoid assignments in comparisons.
* libmisc/loginprompt.c: The return values of fclose and fflush are not checked on purpose.
* Avoid assignments in comparisons.
* (hushed) Change type of found to bool.
* Add brackets.
* Always check if the user or the shell is in
the file. Do not check the first character of the line first. This
is simpler and match better with the HUSHLOGIN_FILE documentation.
check_user_name) renamed to is_valid_user_name (resp.
is_valid_group_name). is_valid_user_name and is_valid_group_name
return a bool.
* src/grpck.c, src/newusers.c, src/usermod.c, src/useradd.c,
src/groupmod.c, src/pwck.c, src/groupadd.c: Use is_valid_user_name
and is_valid_group_name, following above change.
* libmisc/chkname.c: Avoid implicit conversion of chars to
booleans. Add brackets and parenthesis.
followed by rmdir to remove the directory itself, delete also the
root directory in remove_tree.
* src/userdel.c, src/usermod.c: Do not call rmdir after
remove_tree.
with post increments (x++), use of integers as booleans, and
explicitly mark blocks with brackets.
* libmisc/copydir.c: Likewise.
* libmisc/fields.c: Add comments.
* libmisc/copydir.c: Mark function whose return value is not
checked as such.
* libmisc/copydir.c (remove_tree): Make sure unlink is successful
when removing files.
