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体验新版 GitCode,发现更多精彩内容 >>
提交
21166170
编写于
2月 01, 2003
作者:
T
Tom Lane
浏览文件
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电子邮件补丁
差异文件
Fix assign_session_authorization() to not be confused by all-numeric
user names. Per recent reports.
上级
361eaa18
变更
1
隐藏空白更改
内联
并排
Showing
1 changed file
with
30 addition
and
13 deletion
+30
-13
src/backend/commands/variable.c
src/backend/commands/variable.c
+30
-13
未找到文件。
src/backend/commands/variable.c
浏览文件 @
21166170
...
...
@@ -9,7 +9,7 @@
*
*
* IDENTIFICATION
* $Header: /cvsroot/pgsql/src/backend/commands/variable.c,v 1.7
2 2002/12/05 04:04:42 momjian
Exp $
* $Header: /cvsroot/pgsql/src/backend/commands/variable.c,v 1.7
3 2003/02/01 18:31:28 tgl
Exp $
*
*-------------------------------------------------------------------------
*/
...
...
@@ -519,25 +519,36 @@ show_server_encoding(void)
/*
* SET SESSION AUTHORIZATION
*
* Note: when resetting session auth after an error, we can't expect to do
* catalog lookups. Hence, the stored form of the value is always a numeric
* userid that can be re-used directly.
* When resetting session auth after an error, we can't expect to do catalog
* lookups. Hence, the stored form of the value must provide a numeric userid
* that can be re-used directly. We store the string in the form of
* NAMEDATALEN 'x's followed by the numeric userid --- this cannot conflict
* with any valid user name, because of the NAMEDATALEN limit on names.
*/
const
char
*
assign_session_authorization
(
const
char
*
value
,
bool
doit
,
bool
interactive
)
{
AclId
usesysid
;
char
*
endptr
;
AclId
usesysid
=
0
;
char
*
result
;
usesysid
=
(
Oid
)
strtoul
(
value
,
&
endptr
,
10
);
if
(
endptr
!=
value
&&
*
endptr
==
'\0'
&&
OidIsValid
(
usesysid
))
if
(
strspn
(
value
,
"x"
)
==
NAMEDATALEN
)
{
/* use the numeric user ID */
/* might be a saved numeric userid */
char
*
endptr
;
usesysid
=
(
AclId
)
strtoul
(
value
+
NAMEDATALEN
,
&
endptr
,
10
);
if
(
endptr
!=
value
+
NAMEDATALEN
&&
*
endptr
==
'\0'
)
{
/* syntactically valid, so use the numeric user ID */
}
else
usesysid
=
0
;
}
else
if
(
usesysid
==
0
)
{
/* not a saved ID, so look it up */
HeapTuple
userTup
;
userTup
=
SearchSysCache
(
SHADOWNAME
,
...
...
@@ -558,11 +569,13 @@ assign_session_authorization(const char *value, bool doit, bool interactive)
if
(
doit
)
SetSessionAuthorization
(
usesysid
);
result
=
(
char
*
)
malloc
(
32
);
result
=
(
char
*
)
malloc
(
NAMEDATALEN
+
32
);
if
(
!
result
)
return
NULL
;
snprintf
(
result
,
32
,
"%lu"
,
(
unsigned
long
)
usesysid
);
memset
(
result
,
'x'
,
NAMEDATALEN
);
snprintf
(
result
+
NAMEDATALEN
,
32
,
"%lu"
,
(
unsigned
long
)
usesysid
);
return
result
;
}
...
...
@@ -570,5 +583,9 @@ assign_session_authorization(const char *value, bool doit, bool interactive)
const
char
*
show_session_authorization
(
void
)
{
/*
* We can't use the stored string; see comments for
* assign_session_authorization
*/
return
GetUserNameFromId
(
GetSessionUserId
());
}
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