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ruanhaishen
redis
Commits
abdbfc14
Commit
abdbfc14
authored
Mar 22, 2011
by
antirez
Browse files
Fixed sdssplitargs() handling of hex-style escapes.
parent
de5d4be9
Changes
1
Hide whitespace changes
Inline
Side-by-side
src/sds.c
View file @
abdbfc14
...
@@ -26,6 +26,12 @@
...
@@ -26,6 +26,12 @@
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
* POSSIBILITY OF SUCH DAMAGE.
*
* History:
*
* - 22 March 2011: History section created on top of sds.c
* - 22 March 2011: Fixed a problem with "\xab" escapes convertion in
* function sdssplitargs().
*/
*/
#define SDS_ABORT_ON_OOM
#define SDS_ABORT_ON_OOM
...
@@ -412,6 +418,37 @@ sds sdscatrepr(sds s, char *p, size_t len) {
...
@@ -412,6 +418,37 @@ sds sdscatrepr(sds s, char *p, size_t len) {
return
sdscatlen
(
s
,
"
\"
"
,
1
);
return
sdscatlen
(
s
,
"
\"
"
,
1
);
}
}
/* Helper function for sdssplitargs() that returns non zero if 'c'
* is a valid hex digit. */
int
is_hex_digit
(
char
c
)
{
return
(
c
>=
'0'
&&
c
<=
'9'
)
||
(
c
>=
'a'
&&
c
<=
'f'
)
||
(
c
>=
'A'
&&
c
<=
'F'
);
}
/* Helper function for sdssplitargs() that converts an hex digit into an
* integer from 0 to 15 */
int
hex_digit_to_int
(
char
c
)
{
switch
(
c
)
{
case
'0'
:
return
0
;
case
'1'
:
return
1
;
case
'2'
:
return
2
;
case
'3'
:
return
3
;
case
'4'
:
return
4
;
case
'5'
:
return
5
;
case
'6'
:
return
6
;
case
'7'
:
return
7
;
case
'8'
:
return
8
;
case
'9'
:
return
9
;
case
'a'
:
case
'A'
:
return
10
;
case
'b'
:
case
'B'
:
return
11
;
case
'c'
:
case
'C'
:
return
12
;
case
'd'
:
case
'D'
:
return
13
;
case
'e'
:
case
'E'
:
return
14
;
case
'f'
:
case
'F'
:
return
15
;
default:
return
0
;
}
}
/* Split a line into arguments, where every argument can be in the
/* Split a line into arguments, where every argument can be in the
* following programming-language REPL-alike form:
* following programming-language REPL-alike form:
*
*
...
@@ -441,7 +478,17 @@ sds *sdssplitargs(char *line, int *argc) {
...
@@ -441,7 +478,17 @@ sds *sdssplitargs(char *line, int *argc) {
if
(
current
==
NULL
)
current
=
sdsempty
();
if
(
current
==
NULL
)
current
=
sdsempty
();
while
(
!
done
)
{
while
(
!
done
)
{
if
(
inq
)
{
if
(
inq
)
{
if
(
*
p
==
'\\'
&&
*
(
p
+
1
))
{
if
(
*
p
==
'\\'
&&
*
(
p
+
1
)
==
'x'
&&
is_hex_digit
(
*
(
p
+
2
))
&&
is_hex_digit
(
*
(
p
+
3
)))
{
unsigned
char
byte
;
byte
=
(
hex_digit_to_int
(
*
(
p
+
2
))
*
16
)
+
hex_digit_to_int
(
*
(
p
+
3
));
current
=
sdscatlen
(
current
,(
char
*
)
&
byte
,
1
);
p
+=
3
;
}
else
if
(
*
p
==
'\\'
&&
*
(
p
+
1
))
{
char
c
;
char
c
;
p
++
;
p
++
;
...
...
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