Modify pw_copy:

- if pw is NULL and oldpw is not NULL then the oldpw is deleted
- if pw->pw_name != oldpw->pw_name but pw->pw_uid == oldpw->pw_uid
then it renames the user

add new gr_* functions so now gr_util API is similar to pw_util API,
this allow to manipulate groups in a safe way.

Reviewed by:	des
Approved by:	des
MFC after:	1 month

1 files changed, 7 insertions, 1 deletions

diff --git a/lib/libutil/libutil.h b/lib/libutil/libutil.h
index fc6d3bb..dea14cf 100644
--- a/lib/libutil/libutil.h
+++ b/lib/libutil/libutil.h
@@ -152,9 +152,15 @@ int	pw_tmp(int _mfd);
 #endif
 
 #ifdef _GRP_H_
+int 	gr_copy(int __ffd, int _tfd, const struct group *_gr, struct group *_old_gr);
+struct group *gr_dup(const struct group *gr);
 int	gr_equal(const struct group *gr1, const struct group *gr2);
+void	gr_fini(void);
+int	gr_init(const char *_dir, const char *_master);
+int	gr_lock(void);
 char	*gr_make(const struct group *gr);
-struct group *gr_dup(const struct group *gr);
+int	gr_mkdb(void);
+int	gr_tmp(int _mdf);
 struct group *gr_scan(const char *line);
 #endif