[PATCH] ws2_32: Fix return values of WSCGetProviderPath() stub

[Aaro Altonen]

Wine-Bug: https://bugs.winehq.org/show_bug.cgi?id=45801
Signed-off-by: Aaro Altonen <a.altonen at hotmail.com>
---
 dlls/ws2_32/socket.c     | 17 +++++++++++++----
 dlls/ws2_32/tests/sock.c | 37 +++++++++++++++++++++++++++++++++++++
 2 files changed, 50 insertions(+), 4 deletions(-)

diff --git a/dlls/ws2_32/socket.c b/dlls/ws2_32/socket.c
index c284f595ab..700e93894d 100644
--- a/dlls/ws2_32/socket.c
+++ b/dlls/ws2_32/socket.c
@@ -9006,12 +9006,21 @@ INT WINAPI WSCEnableNSProvider( LPGUID provider, BOOL enable )
  */
 INT WINAPI WSCGetProviderPath( LPGUID provider, LPWSTR path, LPINT len, LPINT errcode )
 {
-    FIXME( "(%s %p %p %p) Stub!\n", debugstr_guid(provider), path, len, errcode );
+    if (!provider || !len || !path) {
+        if (errcode)
+            *errcode = WSAEFAULT;
+        return SOCKET_ERROR;
+    }
 
-    if (!errcode || !provider || !len) return WSAEFAULT;
+    if (*len <= 0) {
+        if (errcode)
+            *errcode = WSAEFAULT;
+        return SOCKET_ERROR;
+    }
 
-    *errcode = WSAEINVAL;
-    return SOCKET_ERROR;
+    FIXME("WSCGetProviderPath not implemented.\n");
+
+    return 0;
 }
 
 /***********************************************************************
diff --git a/dlls/ws2_32/tests/sock.c b/dlls/ws2_32/tests/sock.c
index 60c5dfc63f..176a19bcfa 100644
--- a/dlls/ws2_32/tests/sock.c
+++ b/dlls/ws2_32/tests/sock.c
@@ -84,6 +84,7 @@ static int   (WINAPI *pWSALookupServiceNextW)(HANDLE,DWORD,LPDWORD,LPWSAQUERYSET
 static int   (WINAPI *pWSAEnumNameSpaceProvidersA)(LPDWORD,LPWSANAMESPACE_INFOA);
 static int   (WINAPI *pWSAEnumNameSpaceProvidersW)(LPDWORD,LPWSANAMESPACE_INFOW);
 static int   (WINAPI *pWSAPoll)(WSAPOLLFD *,ULONG,INT);
+static int   (WINAPI *pWSCGetProviderPath)(LPGUID, LPWSTR, LPINT, LPINT);
 
 /* Function pointers from iphlpapi */
 static DWORD (WINAPI *pGetAdaptersInfo)(PIP_ADAPTER_INFO,PULONG);
@@ -1300,6 +1301,7 @@ static void Init (void)
     pWSAEnumNameSpaceProvidersA = (void *)GetProcAddress(hws2_32, "WSAEnumNameSpaceProvidersA");
     pWSAEnumNameSpaceProvidersW = (void *)GetProcAddress(hws2_32, "WSAEnumNameSpaceProvidersW");
     pWSAPoll = (void *)GetProcAddress(hws2_32, "WSAPoll");
+    pWSCGetProviderPath = (void *)GetProcAddress(hws2_32, "WSCGetProviderPath");
 
     hiphlpapi = LoadLibraryA("iphlpapi.dll");
     if (hiphlpapi)
@@ -10600,6 +10602,39 @@ static void test_address_list_query(void)
     closesocket(s);
 }
 
+static void test_WSCGetProviderPath(void)
+{
+    GUID ProviderIdIP = { 0x0, 0x0, 0x0, { 0x0, 0x0, 0x00, 0x0, 0x0, 0x0, 0x0, 0x0 } };
+    wchar_t buffer[256];
+    INT ret, err, len;
+
+    ret = pWSCGetProviderPath(NULL, NULL, NULL, NULL);
+    ok(ret == SOCKET_ERROR, "Got unexpected ret %d.\n", ret);
+
+    ret = pWSCGetProviderPath(&ProviderIdIP, NULL, NULL, NULL);
+    ok(ret == SOCKET_ERROR, "Got unexpected ret %d.\n", ret);
+
+    ret = pWSCGetProviderPath(NULL, NULL, NULL, &err);
+    ok(ret == SOCKET_ERROR, "Got unexpected ret %d.\n", ret);
+    ok(err == WSAEFAULT, "Got unexpected error %d.\n", err);
+
+    ret = pWSCGetProviderPath(&ProviderIdIP, NULL, NULL, &err);
+    ok(ret == SOCKET_ERROR, "Got unexpected ret %d.\n", ret);
+    ok(err == WSAEFAULT, "Got unexpected error %d.\n", err);
+
+    len = -1;
+    ret = pWSCGetProviderPath(&ProviderIdIP, buffer, &len, &err);
+    ok(ret == SOCKET_ERROR, "Got unexpected ret %d.\n", ret);
+    ok(err == WSAEFAULT, "Got unexpected error %d.\n", err);
+
+    /* WSCGetProviderPath() will return an error but if "ProviderIdIP"
+     * was valid, its path's length is written to "len" */
+    len = -1;
+    ret = pWSCGetProviderPath(&ProviderIdIP, NULL, &len, &err);
+    ok(ret == SOCKET_ERROR, "Got unexpected ret %d.\n", ret);
+    ok(err == WSAEFAULT, "Got unexpected error %d.\n", err);
+}
+
 static DWORD WINAPI inet_ntoa_thread_proc(void *param)
 {
     ULONG addr;
@@ -11681,6 +11716,8 @@ START_TEST( sock )
     test_completion_port();
     test_address_list_query();
 
+    test_WSCGetProviderPath();
+
     /* this is an io heavy test, do it at the end so the kernel doesn't start dropping packets */
     test_send();
     test_synchronous_WSAIoctl();
-- 
2.25.1