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wine
wine-winehq
Commits
6eba688f
Commit
6eba688f
authored
Dec 02, 2014
by
Joachim Priesner
Committed by
Alexandre Julliard
Dec 02, 2014
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ws2_32: Use qsort() to order routes by metric in WS_get_local_ips.
parent
2a8043aa
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1 changed file
with
17 additions
and
21 deletions
+17
-21
socket.c
dlls/ws2_32/socket.c
+17
-21
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dlls/ws2_32/socket.c
View file @
6eba688f
...
...
@@ -5167,6 +5167,17 @@ struct WS_hostent* WINAPI WS_gethostbyaddr(const char *addr, int len, int type)
}
/***********************************************************************
* WS_compare_routes_by_metric_asc (INTERNAL)
*
* Comparison function for qsort(), for sorting two routes (struct route)
* by metric in ascending order.
*/
static
int
WS_compare_routes_by_metric_asc
(
const
void
*
left
,
const
void
*
right
)
{
return
((
const
struct
route
*
)
left
)
->
metric
-
((
const
struct
route
*
)
right
)
->
metric
;
}
/***********************************************************************
* WS_get_local_ips (INTERNAL)
*
* Returns the list of local IP addresses by going through the network
...
...
@@ -5180,7 +5191,7 @@ struct WS_hostent* WINAPI WS_gethostbyaddr(const char *addr, int len, int type)
*/
static
struct
WS_hostent
*
WS_get_local_ips
(
char
*
hostname
)
{
int
last_metric
,
numroutes
=
0
,
i
,
j
;
int
numroutes
=
0
,
i
,
j
;
DWORD
n
;
PIP_ADAPTER_INFO
adapters
=
NULL
,
k
;
struct
WS_hostent
*
hostlist
=
NULL
;
...
...
@@ -5260,30 +5271,15 @@ static struct WS_hostent* WS_get_local_ips( char *hostname )
hostlist
->
h_aliases
[
0
]
=
NULL
;
/* NULL-terminate the alias list */
hostlist
->
h_addrtype
=
AF_INET
;
hostlist
->
h_length
=
sizeof
(
struct
in_addr
);
/* = 4 */
/* Reorder the entries
when placing them in the host list,
Windows expects
/* Reorder the entries
before placing them in the host list.
Windows expects
* the IP list in order from highest priority to lowest (the critical thing
* is that most applications expect the first IP to be the default route).
*/
last_metric
=
-
1
;
for
(
i
=
0
;
i
<
numroutes
;
i
++
)
{
struct
in_addr
addr
;
int
metric
=
0xFFFF
;
if
(
numroutes
>
1
)
qsort
(
route_addrs
,
numroutes
,
sizeof
(
struct
route
),
WS_compare_routes_by_metric_asc
);
memcpy
(
&
addr
,
magic_loopback_addr
,
4
);
for
(
j
=
0
;
j
<
numroutes
;
j
++
)
{
int
this_metric
=
route_addrs
[
j
].
metric
;
if
(
this_metric
>
last_metric
&&
this_metric
<
metric
)
{
addr
=
route_addrs
[
j
].
addr
;
metric
=
this_metric
;
}
}
last_metric
=
metric
;
(
*
(
struct
in_addr
*
)
hostlist
->
h_addr_list
[
i
])
=
addr
;
}
for
(
i
=
0
;
i
<
numroutes
;
i
++
)
(
*
(
struct
in_addr
*
)
hostlist
->
h_addr_list
[
i
])
=
route_addrs
[
i
].
addr
;
/* Cleanup all allocated memory except the address list,
* the address list is used by the calling app.
...
...
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