恢复sp_addlogin

create
 
procedure
 sys.sp_addlogin  

@loginame
  sysname  

   ,
@passwd
         sysname 
=
 
Null
  

   ,
@defdb
          sysname 
=
 
'
master
'
      
--
 UNDONE: DEFAULT CONFIGURABLE???  


   ,
@deflanguage
    sysname 
=
 
Null
  

   ,
@sid
   
varbinary
(
16
) 
=
 
Null
  

   ,
@encryptopt
  
varchar
(
20
) 
=
 
Null
  

AS
  

--
 SETUP RUNTIME OPTIONS / DECLARE VARIABLES --  


 
set
 nocount 
on
  

declare
 
@exec_stmt
 
nvarchar
(
4000
)  

declare
 
@hextext
 
varchar
(
256
)  

declare
 
@ret
 
int
  


--
 DISALLOW USER TRANSACTION --  


 
set
 implicit_transactions 
off
  

IF
 (
@@trancount
 
>
 
0
)  

begin
  

raiserror
(
15002
,
-
1
,
-
1
,
'
sys.sp_addlogin
'
)  

return
 (
1
)  

end
  


--
 VALIDATE LOGIN NAME:  


 
execute
 
@ret
 
=
 sys.sp_validname 
@loginame
  

if
 (
@ret
 
<>
 
0
)  

return
 (
1
)  


set
 
@exec_stmt
 
=
 
'
create login 
'
 
+
 
quotename
(
@loginame
)  


if
 
@passwd
 
is
 
null
  

select
 
@passwd
 
=
 
''
  


if
 (
@encryptopt
 
is
 
null
)  

set
 
@exec_stmt
 
=
 
@exec_stmt
 
+
 
'
 with password = 
'
 
+
 
quotename
(
@passwd
, 
''''
)  

else
  

begin
  

declare
 
@passwdbin
 
varbinary
(
256
)  

set
 
@passwdbin
 
=
 
convert
(
varbinary
(
256
), 
@passwd
)  

execute
 sys.sp_hexadecimal 
@passwdbin
, 
@hextext
 OUT  

set
 
@exec_stmt
 
=
 
@exec_stmt
 
+
 
'
 with password = 
'
 
+
 
@hextext
  


if
 (
@encryptopt
 
=
 
'
skip_encryption_old
'
)  

set
 
@exec_stmt
 
=
 
@exec_stmt
 
+
 
'
 hashed 
'
  

else
 
if
 (
@encryptopt
 
=
 
'
skip_encryption
'
)  

set
 
@exec_stmt
 
=
 
@exec_stmt
 
+
 
'
 hashed 
'
  

else
  

begin
  

raiserror
(
15600
,
-
1
,
-
1
,
'
sys.sp_addlogin
'
)  

return
 
1
  

end
  

end
  


if
 (
@defdb
 
is
 
not
 
null
)  

set
 
@exec_stmt
 
=
 
@exec_stmt
 
+
 
'
, default_database = 
'
 
+
 
quotename
(
@defdb
)  


if
 (
@deflanguage
 
is
 
not
 
null
)  

set
 
@exec_stmt
 
=
 
@exec_stmt
 
+
 
'
, default_language = 
'
 
+
 
quotename
(
@deflanguage
)  


if
 (
@sid
 
is
 
not
 
null
)  

begin
  

execute
 sys.sp_hexadecimal 
@sid
, 
@hextext
 OUT  

set
 
@exec_stmt
 
=
 
@exec_stmt
 
+
 
'
, sid = 
'
 
+
 
@hextext
  

end
  


exec
 (
@exec_stmt
)  


if
 
@@error
 
<>
 
0
  

return
 (
1
)  


--
 RETURN SUCCESS --  


 
return
  (
0
) 
--
 sp_addlogin