diff options
Diffstat (limited to 'libs/sys/luasrc/sys.lua')
| -rw-r--r-- | libs/sys/luasrc/sys.lua | 18 |
1 files changed, 15 insertions, 3 deletions
diff --git a/libs/sys/luasrc/sys.lua b/libs/sys/luasrc/sys.lua index 6985d78fc..4e147c502 100644 --- a/libs/sys/luasrc/sys.lua +++ b/libs/sys/luasrc/sys.lua @@ -584,14 +584,26 @@ user = {} -- { "uid", "gid", "name", "passwd", "dir", "shell", "gecos" } user.getuser = nixio.getpw +--- Retrieve the current user password hash. +-- @param username String containing the username to retrieve the password for +-- @return String containing the hash or nil if no password is set. +function user.getpasswd(username) + local pwe = nixio.getsp and nixio.getsp(username) or nixio.getpw(username) + local pwh = pwe and (pwe.pwdp or pwe.passwd) + if not pwh or #pwh < 1 or pwh == "!" or pwh == "x" then + return nil + else + return pwh + end +end + --- Test whether given string matches the password of a given system user. -- @param username String containing the Unix user name -- @param pass String containing the password to compare -- @return Boolean indicating wheather the passwords are equal function user.checkpasswd(username, pass) - local pwe = nixio.getsp and nixio.getsp(username) or nixio.getpw(username) - local pwh = pwe and (pwe.pwdp or pwe.passwd) - if not pwh or #pwh < 1 or pwh ~= "!" and nixio.crypt(pass, pwh) ~= pwh then + local pwh = user.getpasswd(username) + if not pwh or nixio.crypt(pass, pwh) ~= pwh then return false else return true |