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[function pointers] unify casts with macro

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This commit is contained in:
akallabeth 2024-09-04 15:26:38 +02:00
parent 1a9766e190
commit 245afb706c
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GPG Key ID: A49454A3FC909FD5
25 changed files with 135 additions and 194 deletions
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12
channels/audin/client/audin_main.c
View File

@ -811,14 +811,10 @@ static UINT audin_load_device_plugin(AUDIN_PLUGIN* audin, const char* name, cons
FREERDP_AUDIN_DEVICE_ENTRY_POINTS entryPoints = { 0 }; FREERDP_AUDIN_DEVICE_ENTRY_POINTS entryPoints = { 0 };
UINT error = ERROR_INTERNAL_ERROR; UINT error = ERROR_INTERNAL_ERROR;
union PVIRTUALCHANNELENTRY pvce = freerdp_load_channel_addin_entry(AUDIN_CHANNEL_NAME, name, NULL, 0);
{ PFREERDP_AUDIN_DEVICE_ENTRY entry = WINPR_FUNC_PTR_CAST(pvce, PFREERDP_AUDIN_DEVICE_ENTRY);
PVIRTUALCHANNELENTRY pvce;
PFREERDP_AUDIN_DEVICE_ENTRY entry;
} cnv;
cnv.pvce = freerdp_load_channel_addin_entry(AUDIN_CHANNEL_NAME, name, NULL, 0);
if (cnv.entry == NULL) if (entry == NULL)
{ {
WLog_Print(audin->log, WLOG_ERROR, WLog_Print(audin->log, WLOG_ERROR,
"freerdp_load_channel_addin_entry did not return any function pointers for %s ", "freerdp_load_channel_addin_entry did not return any function pointers for %s ",
@ -831,7 +827,7 @@ static UINT audin_load_device_plugin(AUDIN_PLUGIN* audin, const char* name, cons
entryPoints.args = args; entryPoints.args = args;
entryPoints.rdpcontext = audin->rdpcontext; entryPoints.rdpcontext = audin->rdpcontext;
error = cnv.entry(&entryPoints); error = entry(&entryPoints);
if (error) if (error)
{ {
WLog_Print(audin->log, WLOG_ERROR, "%s entry returned error %" PRIu32 ".", name, error); WLog_Print(audin->log, WLOG_ERROR, "%s entry returned error %" PRIu32 ".", name, error);

24
channels/client/addin.c
View File

@ -52,16 +52,9 @@ static void* freerdp_channels_find_static_entry_in_table(const STATIC_ENTRY_TABL
while (pEntry->entry != NULL) while (pEntry->entry != NULL)
{ {
static_entry_fn_t fkt = pEntry->entry;
if (strcmp(pEntry->name, identifier) == 0) if (strcmp(pEntry->name, identifier) == 0)
{ return WINPR_FUNC_PTR_CAST(fkt, void*);
union
{
void* pv;
static_entry_fn_t entry;
} cnv;
cnv.entry = pEntry->entry;
return cnv.pv;
}
pEntry = &table->table.cse[index++]; pEntry = &table->table.cse[index++];
} }
@ -494,20 +487,15 @@ PVIRTUALCHANNELENTRY freerdp_channels_load_static_addin_entry(LPCSTR pszName, LP
0) || /* we only want to know if strnlen is > 0 */ 0) || /* we only want to know if strnlen is > 0 */
(strncmp(subsystems->name, pszSubsystem, MAX_PATH) == 0)) (strncmp(subsystems->name, pszSubsystem, MAX_PATH) == 0))
{ {
/* cast with union trick to avoid -Wcast-function-type-strict */ static_subsystem_entry_fn_t fkt = subsystems->entry;
union
{
PVIRTUALCHANNELENTRY pvce;
static_subsystem_entry_fn_t entry;
} cnv;
cnv.entry = subsystems->entry;
if (pszType) if (pszType)
{ {
if (strncmp(subsystems->type, pszType, MAX_PATH) == 0) if (strncmp(subsystems->type, pszType, MAX_PATH) == 0)
return cnv.pvce; return WINPR_FUNC_PTR_CAST(fkt, PVIRTUALCHANNELENTRY);
} }
else else
return cnv.pvce; return WINPR_FUNC_PTR_CAST(fkt, PVIRTUALCHANNELENTRY);
} }
} }
} }

12
channels/drdynvc/client/drdynvc_main.c
View File

@ -359,15 +359,11 @@ static UINT dvcman_load_addin(drdynvcPlugin* drdynvc, IWTSVirtualChannelManager*
WLog_Print(drdynvc->log, WLOG_INFO, "Loading Dynamic Virtual Channel %s", args->argv[0]); WLog_Print(drdynvc->log, WLOG_INFO, "Loading Dynamic Virtual Channel %s", args->argv[0]);
union PVIRTUALCHANNELENTRY pvce =
{
PVIRTUALCHANNELENTRY pvce;
PDVC_PLUGIN_ENTRY pDVCPluginEntry;
} cnv;
cnv.pvce =
freerdp_load_channel_addin_entry(args->argv[0], NULL, NULL, FREERDP_ADDIN_CHANNEL_DYNAMIC); freerdp_load_channel_addin_entry(args->argv[0], NULL, NULL, FREERDP_ADDIN_CHANNEL_DYNAMIC);
PDVC_PLUGIN_ENTRY pDVCPluginEntry = WINPR_FUNC_PTR_CAST(pvce, PDVC_PLUGIN_ENTRY);
if (cnv.pDVCPluginEntry) if (pDVCPluginEntry)
{ {
DVCMAN_ENTRY_POINTS entryPoints = { 0 }; DVCMAN_ENTRY_POINTS entryPoints = { 0 };
@ -379,7 +375,7 @@ static UINT dvcman_load_addin(drdynvcPlugin* drdynvc, IWTSVirtualChannelManager*
entryPoints.dvcman = (DVCMAN*)pChannelMgr; entryPoints.dvcman = (DVCMAN*)pChannelMgr;
entryPoints.args = args; entryPoints.args = args;
entryPoints.context = context; entryPoints.context = context;
return cnv.pDVCPluginEntry(&entryPoints.iface); return pDVCPluginEntry(&entryPoints.iface);
} }
return ERROR_INVALID_FUNCTION; return ERROR_INVALID_FUNCTION;

13
channels/printer/client/printer_main.c
View File

@ -1049,18 +1049,13 @@ error_out:
static rdpPrinterDriver* printer_load_backend(const char* backend) static rdpPrinterDriver* printer_load_backend(const char* backend)
{ {
typedef UINT (*backend_load_t)(rdpPrinterDriver**); typedef UINT (*backend_load_t)(rdpPrinterDriver**);
union PVIRTUALCHANNELENTRY entry = freerdp_load_channel_addin_entry("printer", backend, NULL, 0);
{ backend_load_t func = WINPR_FUNC_PTR_CAST(entry, backend_load_t);
PVIRTUALCHANNELENTRY entry; if (!func)
backend_load_t backend;
} fktconv;
fktconv.entry = freerdp_load_channel_addin_entry("printer", backend, NULL, 0);
if (!fktconv.entry)
return NULL; return NULL;
rdpPrinterDriver* printer = NULL; rdpPrinterDriver* printer = NULL;
const UINT rc = fktconv.backend(&printer); const UINT rc = func(&printer);
if (rc != CHANNEL_RC_OK) if (rc != CHANNEL_RC_OK)
return NULL; return NULL;

13
channels/rdpdr/client/devman.c
View File

@ -187,11 +187,6 @@ UINT devman_load_device_service(DEVMAN* devman, const RDPDR_DEVICE* device, rdpC
const char* ServiceName = NULL; const char* ServiceName = NULL;
DEVICE_SERVICE_ENTRY_POINTS ep = { 0 }; DEVICE_SERVICE_ENTRY_POINTS ep = { 0 };
union union
{
PVIRTUALCHANNELENTRY pvce;
PDEVICE_SERVICE_ENTRY entry;
} cnv;
union
{ {
const RDPDR_DEVICE* cdp; const RDPDR_DEVICE* cdp;
RDPDR_DEVICE* dp; RDPDR_DEVICE* dp;
@ -223,9 +218,11 @@ UINT devman_load_device_service(DEVMAN* devman, const RDPDR_DEVICE* device, rdpC
else else
WLog_INFO(TAG, "Loading device service %s (static)", ServiceName); WLog_INFO(TAG, "Loading device service %s (static)", ServiceName);
cnv.pvce = freerdp_load_channel_addin_entry(ServiceName, NULL, "DeviceServiceEntry", 0); PVIRTUALCHANNELENTRY pvce =
freerdp_load_channel_addin_entry(ServiceName, NULL, "DeviceServiceEntry", 0);
PDEVICE_SERVICE_ENTRY entry = WINPR_FUNC_PTR_CAST(pvce, PDEVICE_SERVICE_ENTRY);
if (!cnv.entry) if (!entry)
{ {
WLog_INFO(TAG, "freerdp_load_channel_addin_entry failed!"); WLog_INFO(TAG, "freerdp_load_channel_addin_entry failed!");
return ERROR_INTERNAL_ERROR; return ERROR_INTERNAL_ERROR;
@ -235,5 +232,5 @@ UINT devman_load_device_service(DEVMAN* devman, const RDPDR_DEVICE* device, rdpC
ep.RegisterDevice = devman_register_device; ep.RegisterDevice = devman_register_device;
ep.device = devconv.dp; ep.device = devconv.dp;
ep.rdpcontext = rdpcontext; ep.rdpcontext = rdpcontext;
return cnv.entry(&ep); return entry(&ep);
} }

14
channels/rdpsnd/client/rdpsnd_main.c
View File

@ -848,27 +848,23 @@ static void rdpsnd_register_device_plugin(rdpsndPlugin* rdpsnd, rdpsndDevicePlug
static UINT rdpsnd_load_device_plugin(rdpsndPlugin* rdpsnd, const char* name, static UINT rdpsnd_load_device_plugin(rdpsndPlugin* rdpsnd, const char* name,
const ADDIN_ARGV* args) const ADDIN_ARGV* args)
{ {
union
{
PVIRTUALCHANNELENTRY pvce;
PFREERDP_RDPSND_DEVICE_ENTRY entry;
} cnv;
FREERDP_RDPSND_DEVICE_ENTRY_POINTS entryPoints = { 0 }; FREERDP_RDPSND_DEVICE_ENTRY_POINTS entryPoints = { 0 };
UINT error = 0; UINT error = 0;
DWORD flags = FREERDP_ADDIN_CHANNEL_STATIC | FREERDP_ADDIN_CHANNEL_ENTRYEX; DWORD flags = FREERDP_ADDIN_CHANNEL_STATIC | FREERDP_ADDIN_CHANNEL_ENTRYEX;
if (rdpsnd->dynamic) if (rdpsnd->dynamic)
flags = FREERDP_ADDIN_CHANNEL_DYNAMIC; flags = FREERDP_ADDIN_CHANNEL_DYNAMIC;
cnv.pvce = freerdp_load_channel_addin_entry(RDPSND_CHANNEL_NAME, name, NULL, flags); PVIRTUALCHANNELENTRY pvce =
freerdp_load_channel_addin_entry(RDPSND_CHANNEL_NAME, name, NULL, flags);
PFREERDP_RDPSND_DEVICE_ENTRY entry = WINPR_FUNC_PTR_CAST(pvce, PFREERDP_RDPSND_DEVICE_ENTRY);
if (!cnv.entry) if (!entry)
return ERROR_INTERNAL_ERROR; return ERROR_INTERNAL_ERROR;
entryPoints.rdpsnd = rdpsnd; entryPoints.rdpsnd = rdpsnd;
entryPoints.pRegisterRdpsndDevice = rdpsnd_register_device_plugin; entryPoints.pRegisterRdpsndDevice = rdpsnd_register_device_plugin;
entryPoints.args = args; entryPoints.args = args;
error = cnv.entry(&entryPoints); error = entry(&entryPoints);
if (error) if (error)
WLog_ERR(TAG, "%s %s entry returns error %" PRIu32 "", rdpsnd_is_dyn_str(rdpsnd->dynamic), WLog_ERR(TAG, "%s %s entry returns error %" PRIu32 "", rdpsnd_is_dyn_str(rdpsnd->dynamic),
name, error); name, error);

14
channels/urbdrc/client/urbdrc_main.c
View File

@ -770,21 +770,19 @@ static UINT urbdrc_load_udevman_addin(IWTSPlugin* pPlugin, LPCSTR name, const AD
{ {
URBDRC_PLUGIN* urbdrc = (URBDRC_PLUGIN*)pPlugin; URBDRC_PLUGIN* urbdrc = (URBDRC_PLUGIN*)pPlugin;
FREERDP_URBDRC_SERVICE_ENTRY_POINTS entryPoints = { 0 }; FREERDP_URBDRC_SERVICE_ENTRY_POINTS entryPoints = { 0 };
union
{
PVIRTUALCHANNELENTRY pvce;
PFREERDP_URBDRC_DEVICE_ENTRY entry;
} cnv;
cnv.pvce = freerdp_load_channel_addin_entry(URBDRC_CHANNEL_NAME, name, NULL, 0);
if (!cnv.entry) PVIRTUALCHANNELENTRY pvce =
freerdp_load_channel_addin_entry(URBDRC_CHANNEL_NAME, name, NULL, 0);
PFREERDP_URBDRC_DEVICE_ENTRY entry = WINPR_FUNC_PTR_CAST(pvce, PFREERDP_URBDRC_DEVICE_ENTRY);
if (!entry)
return ERROR_INVALID_OPERATION; return ERROR_INVALID_OPERATION;
entryPoints.plugin = pPlugin; entryPoints.plugin = pPlugin;
entryPoints.pRegisterUDEVMAN = urbdrc_register_udevman_addin; entryPoints.pRegisterUDEVMAN = urbdrc_register_udevman_addin;
entryPoints.args = args; entryPoints.args = args;
const UINT error = cnv.entry(&entryPoints); const UINT error = entry(&entryPoints);
if (error) if (error)
{ {
WLog_Print(urbdrc->log, WLOG_ERROR, "%s entry returns error.", name); WLog_Print(urbdrc->log, WLOG_ERROR, "%s entry returns error.", name);

15
client/common/cmdline.c
View File

@ -5716,22 +5716,17 @@ fail:
static BOOL freerdp_client_load_static_channel_addin(rdpChannels* channels, rdpSettings* settings, static BOOL freerdp_client_load_static_channel_addin(rdpChannels* channels, rdpSettings* settings,
const char* name, void* data) const char* name, void* data)
{ {
union
{
PVIRTUALCHANNELENTRY pvce;
PVIRTUALCHANNELENTRYEX pvceex;
} cnv;
PVIRTUALCHANNELENTRY entry = NULL; PVIRTUALCHANNELENTRY entry = NULL;
PVIRTUALCHANNELENTRY pvce = freerdp_load_channel_addin_entry(
cnv.pvce = freerdp_load_channel_addin_entry(
name, NULL, NULL, FREERDP_ADDIN_CHANNEL_STATIC | FREERDP_ADDIN_CHANNEL_ENTRYEX); name, NULL, NULL, FREERDP_ADDIN_CHANNEL_STATIC | FREERDP_ADDIN_CHANNEL_ENTRYEX);
PVIRTUALCHANNELENTRYEX pvceex = WINPR_FUNC_PTR_CAST(pvce, PVIRTUALCHANNELENTRYEX);
if (!cnv.pvceex) if (!pvceex)
entry = freerdp_load_channel_addin_entry(name, NULL, NULL, FREERDP_ADDIN_CHANNEL_STATIC); entry = freerdp_load_channel_addin_entry(name, NULL, NULL, FREERDP_ADDIN_CHANNEL_STATIC);
if (cnv.pvceex) if (pvceex)
{ {
if (freerdp_channels_client_load_ex(channels, settings, cnv.pvceex, data) == 0) if (freerdp_channels_client_load_ex(channels, settings, pvceex, data) == 0)
{ {
WLog_DBG(TAG, "loading channelEx %s", name); WLog_DBG(TAG, "loading channelEx %s", name);
return TRUE; return TRUE;

9
libfreerdp/common/addin.c
View File

@ -237,13 +237,8 @@ PVIRTUALCHANNELENTRY freerdp_load_dynamic_addin(LPCSTR pszFileName, LPCSTR pszPa
if (!library) if (!library)
goto fail; goto fail;
union FARPROC fp = GetProcAddress(library, pszEntryName);
{ entry = WINPR_FUNC_PTR_CAST(fp, PVIRTUALCHANNELENTRY);
FARPROC fp;
PVIRTUALCHANNELENTRY entry;
} cnv;
cnv.fp = GetProcAddress(library, pszEntryName);
entry = cnv.entry;
fail: fail:
free(pszRelativeFilePath); free(pszRelativeFilePath);
free(pszAddinFile); free(pszAddinFile);

13
libfreerdp/core/childsession.c
View File

@ -470,19 +470,16 @@ static BOOL createChildSessionTransport(HANDLE* pFile)
WCHAR pipePath[0x80] = { 0 }; WCHAR pipePath[0x80] = { 0 };
char pipePathA[0x80] = { 0 }; char pipePathA[0x80] = { 0 };
union FARPROC fp = GetProcAddress(hModule, "WinStationCreateChildSessionTransport");
{ WinStationCreateChildSessionTransportFn createChildSessionFn =
FARPROC fp; WINPR_FUNC_PTR_CAST(fp, WinStationCreateChildSessionTransportFn);
WinStationCreateChildSessionTransportFn createChildSessionFn; if (!createChildSessionFn)
} cnv;
cnv.fp = GetProcAddress(hModule, "WinStationCreateChildSessionTransport");
if (!cnv.createChildSessionFn)
{ {
WLog_ERR(TAG, "unable to retrieve WinStationCreateChildSessionTransport function"); WLog_ERR(TAG, "unable to retrieve WinStationCreateChildSessionTransport function");
goto out; goto out;
} }
HRESULT hStatus = cnv.createChildSessionFn(pipePath, 0x80); HRESULT hStatus = createChildSessionFn(pipePath, 0x80);
if (!SUCCEEDED(hStatus)) if (!SUCCEEDED(hStatus))
{ {
WLog_ERR(TAG, "error 0x%x when creating childSessionTransport", hStatus); WLog_ERR(TAG, "error 0x%x when creating childSessionTransport", hStatus);

13
libfreerdp/core/credssp_auth.c
View File

@ -814,20 +814,17 @@ static SecurityFunctionTable* auth_resolve_sspi_table(const rdpSettings* setting
WLog_INFO(TAG, "Using SSPI Module: %s", module_name); WLog_INFO(TAG, "Using SSPI Module: %s", module_name);
union FARPROC fp = GetProcAddress(hSSPI, proc_name);
{ INIT_SECURITY_INTERFACE InitSecurityInterface_ptr =
FARPROC fp; WINPR_FUNC_PTR_CAST(fp, INIT_SECURITY_INTERFACE);
INIT_SECURITY_INTERFACE InitSecurityInterface_ptr; if (!InitSecurityInterface_ptr)
} cnv;
cnv.fp = GetProcAddress(hSSPI, proc_name);
if (!cnv.InitSecurityInterface_ptr)
{ {
WLog_ERR(TAG, "Failed to load SSPI module: %s, no function %s", module_name, proc_name); WLog_ERR(TAG, "Failed to load SSPI module: %s, no function %s", module_name, proc_name);
free(sspi_module); free(sspi_module);
return FALSE; return FALSE;
} }
free(sspi_module); free(sspi_module);
return cnv.InitSecurityInterface_ptr(); return InitSecurityInterface_ptr();
} }
return InitSecurityInterfaceEx(0); return InitSecurityInterfaceEx(0);

10
libfreerdp/crypto/tls.c
View File

@ -539,17 +539,13 @@ static long bio_rdp_tls_callback_ctrl(BIO* bio, int cmd, bio_info_cb* fp)
case BIO_CTRL_SET_CALLBACK: case BIO_CTRL_SET_CALLBACK:
{ {
typedef void (*fkt_t)(const SSL*, int, int); typedef void (*fkt_t)(const SSL*, int, int);
/* Documented since https://www.openssl.org/docs/man1.1.1/man3/BIO_set_callback.html /* Documented since https://www.openssl.org/docs/man1.1.1/man3/BIO_set_callback.html
* the argument is not really of type bio_info_cb* and must be cast * the argument is not really of type bio_info_cb* and must be cast
* to the required type */ * to the required type */
union
{
fkt_t fkt;
bio_info_cb* fp;
} cnv;
cnv.fp = fp; fkt_t fkt = WINPR_FUNC_PTR_CAST(fp, fkt_t);
SSL_set_info_callback(tls->ssl, cnv.fkt); SSL_set_info_callback(tls->ssl, fkt);
status = 1; status = 1;
} }
break; break;

11
libfreerdp/primitives/prim_copy.c
View File

@ -377,16 +377,7 @@ void primitives_init_copy(primitives_t* prims)
/* Start with the default. */ /* Start with the default. */
prims->copy_8u = general_copy_8u; prims->copy_8u = general_copy_8u;
prims->copy_8u_AC4r = general_copy_8u_AC4r; prims->copy_8u_AC4r = general_copy_8u_AC4r;
/* This is just an alias with void* parameters prims->copy = WINPR_FUNC_PTR_CAST(prims->copy_8u, __copy_t);
* cast with union trick to avoid -Wcast-function-type-strict
*/
union
{
__copy_8u_t ufkt;
__copy_t fkt;
} cnv;
cnv.ufkt = prims->copy_8u;
prims->copy = cnv.fkt;
prims->copy_no_overlap = generic_image_copy_no_overlap; prims->copy_no_overlap = generic_image_copy_no_overlap;
} }

16
server/proxy/pf_client.c
View File

@ -194,21 +194,15 @@ static BOOL freerdp_client_load_static_channel_addin(rdpChannels* channels, rdpS
const char* name, void* data) const char* name, void* data)
{ {
PVIRTUALCHANNELENTRY entry = NULL; PVIRTUALCHANNELENTRY entry = NULL;
union PVIRTUALCHANNELENTRY lentry = freerdp_load_channel_addin_entry(
{
PVIRTUALCHANNELENTRY entry;
PVIRTUALCHANNELENTRYEX entryEx;
} cnv;
cnv.entry = freerdp_load_channel_addin_entry(
name, NULL, NULL, FREERDP_ADDIN_CHANNEL_STATIC | FREERDP_ADDIN_CHANNEL_ENTRYEX); name, NULL, NULL, FREERDP_ADDIN_CHANNEL_STATIC | FREERDP_ADDIN_CHANNEL_ENTRYEX);
PVIRTUALCHANNELENTRYEX entryEx = WINPR_FUNC_PTR_CAST(lentry, PVIRTUALCHANNELENTRYEX);
if (!cnv.entryEx) if (!entryEx)
entry = freerdp_load_channel_addin_entry(name, NULL, NULL, FREERDP_ADDIN_CHANNEL_STATIC); entry = freerdp_load_channel_addin_entry(name, NULL, NULL, FREERDP_ADDIN_CHANNEL_STATIC);
if (cnv.entryEx) if (entryEx)
{ {
if (freerdp_channels_client_load_ex(channels, settings, cnv.entryEx, data) == 0) if (freerdp_channels_client_load_ex(channels, settings, entryEx, data) == 0)
{ {
WLog_INFO(TAG, "loading channelEx %s", name); WLog_INFO(TAG, "loading channelEx %s", name);
return TRUE; return TRUE;

12
server/proxy/pf_modules.c
View File

@ -491,13 +491,9 @@ static BOOL pf_modules_load_module(const char* module_path, proxyModule* module,
return FALSE; return FALSE;
} }
union FARPROC fp = GetProcAddress(handle, MODULE_ENTRY_POINT);
{ proxyModuleEntryPoint pEntryPoint = WINPR_FUNC_PTR_CAST(fp, proxyModuleEntryPoint);
FARPROC fp; if (!pEntryPoint)
proxyModuleEntryPoint pEntryPoint;
} cnv;
cnv.fp = GetProcAddress(handle, MODULE_ENTRY_POINT);
if (!cnv.pEntryPoint)
{ {
WLog_ERR(TAG, "GetProcAddress failed while loading %s", module_path); WLog_ERR(TAG, "GetProcAddress failed while loading %s", module_path);
goto error; goto error;
@ -507,7 +503,7 @@ static BOOL pf_modules_load_module(const char* module_path, proxyModule* module,
WLog_ERR(TAG, "ArrayList_Append failed!"); WLog_ERR(TAG, "ArrayList_Append failed!");
goto error; goto error;
} }
return pf_modules_add(module, cnv.pEntryPoint, userdata); return pf_modules_add(module, pEntryPoint, userdata);
error: error:
FreeLibrary(handle); FreeLibrary(handle);

15
winpr/include/winpr/winpr.h
View File

@ -136,4 +136,19 @@ WINPR_API const char* winpr_get_build_config(void);
#define WINPR_UNUSED(x) (void)(x) #define WINPR_UNUSED(x) (void)(x)
#if defined(__GNUC__) || defined(__clang__)
#define WINPR_FUNC_PTR_CAST(ptr, dstType) \
({ \
union \
{ \
typeof(ptr) src; \
dstType dst; \
} cnv; \
cnv.src = ptr; \
cnv.dst; \
})
#else
#define WINPR_FUNC_PTR_CAST(ptr, dstType) (dstType)(uintptr_t) ptr
#endif
#endif /* WINPR_H */ #endif /* WINPR_H */

4
winpr/libwinpr/library/test/TestLibraryGetProcAddress.c
View File

@ -47,13 +47,13 @@ int TestLibraryGetProcAddress(int argc, char* argv[])
return -1; return -1;
} }
if (!(pFunctionA = (TEST_AB_FN)GetProcAddress(library, "FunctionA"))) if (!(pFunctionA = WINPR_FUNC_PTR_CAST(GetProcAddress(library, "FunctionA"), TEST_AB_FN)))
{ {
printf("%s: GetProcAddress failure (FunctionA)\n", __func__); printf("%s: GetProcAddress failure (FunctionA)\n", __func__);
return -1; return -1;
} }
if (!(pFunctionB = (TEST_AB_FN)GetProcAddress(library, "FunctionB"))) if (!(pFunctionB = WINPR_FUNC_PTR_CAST(GetProcAddress(library, "FunctionB"), TEST_AB_FN)))
{ {
printf("%s: GetProcAddress failure (FunctionB)\n", __func__); printf("%s: GetProcAddress failure (FunctionB)\n", __func__);
return -1; return -1;

10
winpr/libwinpr/ncrypt/ncrypt.c
View File

@ -267,15 +267,15 @@ SECURITY_STATUS winpr_NCryptOpenStorageProviderEx(NCRYPT_PROV_HANDLE* phProvider
{ {
typedef SECURITY_STATUS (*NCryptOpenStorageProviderFn)(NCRYPT_PROV_HANDLE * phProvider, typedef SECURITY_STATUS (*NCryptOpenStorageProviderFn)(NCRYPT_PROV_HANDLE * phProvider,
LPCWSTR pszProviderName, DWORD dwFlags); LPCWSTR pszProviderName, DWORD dwFlags);
NCryptOpenStorageProviderFn ncryptOpenStorageProviderFn; SECURITY_STATUS ret = NTE_PROV_DLL_NOT_FOUND;
SECURITY_STATUS ret;
HANDLE lib = LoadLibraryA("ncrypt.dll"); HANDLE lib = LoadLibraryA("ncrypt.dll");
if (!lib) if (!lib)
return NTE_PROV_DLL_NOT_FOUND; return NTE_PROV_DLL_NOT_FOUND;
ncryptOpenStorageProviderFn = FARPROC fp = GetProcAddress(lib, "NCryptOpenStorageProvider");
(NCryptOpenStorageProviderFn)GetProcAddress(lib, "NCryptOpenStorageProvider"); NCryptOpenStorageProviderFn ncryptOpenStorageProviderFn =
if (!ncryptOpenStorageProviderFn) WINPR_FUNC_PTR_CAST(fp, NCryptOpenStorageProviderFn);
(NCryptOpenStorageProviderFn) if (!ncryptOpenStorageProviderFn)
{ {
ret = NTE_PROV_DLL_NOT_FOUND; ret = NTE_PROV_DLL_NOT_FOUND;
goto out_free_lib; goto out_free_lib;

12
winpr/libwinpr/ncrypt/ncrypt_pkcs11.c
View File

@ -1261,20 +1261,16 @@ SECURITY_STATUS NCryptOpenP11StorageProviderEx(NCRYPT_PROV_HANDLE* phProvider,
goto out_load_library; goto out_load_library;
} }
union FARPROC fp = GetProcAddress(library, "C_GetFunctionList");
{ c_get_function_list_t c_get_function_list = WINPR_FUNC_PTR_CAST(fp, c_get_function_list_t);
FARPROC fp;
c_get_function_list_t c_get_function_list;
} cnv;
cnv.fp = GetProcAddress(library, "C_GetFunctionList");
if (!cnv.c_get_function_list) if (!c_get_function_list)
{ {
status = NTE_PROV_TYPE_ENTRY_BAD; status = NTE_PROV_TYPE_ENTRY_BAD;
goto out_load_library; goto out_load_library;
} }
status = initialize_pkcs11(library, cnv.c_get_function_list, phProvider); status = initialize_pkcs11(library, c_get_function_list, phProvider);
if (status != ERROR_SUCCESS) if (status != ERROR_SUCCESS)
{ {
status = NTE_PROVIDER_DLL_FAIL; status = NTE_PROVIDER_DLL_FAIL;

6
winpr/libwinpr/pool/callback.c
View File

@ -26,15 +26,17 @@
#ifdef WINPR_THREAD_POOL #ifdef WINPR_THREAD_POOL
#ifdef _WIN32 #ifdef _WIN32
typedef BOOL(WINAPI* pCallbackMayRunLong_t)(PTP_CALLBACK_INSTANCE pci);
static INIT_ONCE init_once_module = INIT_ONCE_STATIC_INIT; static INIT_ONCE init_once_module = INIT_ONCE_STATIC_INIT;
static BOOL(WINAPI* pCallbackMayRunLong)(PTP_CALLBACK_INSTANCE pci); static pCallbackMayRunLong_t pCallbackMayRunLong = NULL;
static BOOL CALLBACK init_module(PINIT_ONCE once, PVOID param, PVOID* context) static BOOL CALLBACK init_module(PINIT_ONCE once, PVOID param, PVOID* context)
{ {
HMODULE kernel32 = LoadLibraryA("kernel32.dll"); HMODULE kernel32 = LoadLibraryA("kernel32.dll");
if (kernel32) if (kernel32)
{ {
pCallbackMayRunLong = (void*)GetProcAddress(kernel32, "CallbackMayRunLong"); FARPROC fp = GetProcAddress(kernel32, "CallbackMayRunLong");
pCallbackMayRunLong = WINPR_FUNC_PTR_CAST(fp, pCallbackMayRunLong_t);
} }
return TRUE; return TRUE;
} }

3
winpr/libwinpr/smartcard/smartcard.c
View File

@ -1105,7 +1105,8 @@ WINSCARDAPI char* WINAPI SCardGetReaderStateString(DWORD dwReaderState)
{ \ { \
WINPR_PRAGMA_DIAG_PUSH \ WINPR_PRAGMA_DIAG_PUSH \
WINPR_PRAGMA_DIAG_IGNORED_PEDANTIC \ WINPR_PRAGMA_DIAG_IGNORED_PEDANTIC \
pWinSCardApiTable->pfn##_name = (fn##_name)GetProcAddress(hWinSCardLibrary, #_name); \ FARPROC fp = GetProcAddress(hWinSCardLibrary, #_name); \
pWinSCardApiTable->pfn##_name = WINPR_FUNC_PTR_CAST(fp, fn##_name); \
WINPR_PRAGMA_DIAG_POP \ WINPR_PRAGMA_DIAG_POP \
} while (0) } while (0)

2
winpr/libwinpr/smartcard/smartcard_pcsc.c
View File

@ -53,7 +53,7 @@
{ \ { \
WINPR_PRAGMA_DIAG_PUSH \ WINPR_PRAGMA_DIAG_PUSH \
WINPR_PRAGMA_DIAG_IGNORED_PEDANTIC \ WINPR_PRAGMA_DIAG_IGNORED_PEDANTIC \
pcsc.pfn##_fname = (fnPCSC##_fname)GetProcAddress(module, #_name); \ pcsc.pfn##_fname = WINPR_FUNC_PTR_CAST(GetProcAddress(module, #_name), fnPCSC##_fname); \
WINPR_PRAGMA_DIAG_POP \ WINPR_PRAGMA_DIAG_POP \
} while (0) } while (0)

26
winpr/libwinpr/sspi/sspi.c
View File

@ -107,10 +107,10 @@ BOOL InitializeSspiModule_Native(void)
if (!g_SspiModule) if (!g_SspiModule)
return FALSE; return FALSE;
pInitSecurityInterfaceW = pInitSecurityInterfaceW = WINPR_FUNC_PTR_CAST(
(INIT_SECURITY_INTERFACE_W)GetProcAddress(g_SspiModule, "InitSecurityInterfaceW"); GetProcAddress(g_SspiModule, "InitSecurityInterfaceW"), INIT_SECURITY_INTERFACE_W);
pInitSecurityInterfaceA = pInitSecurityInterfaceA = WINPR_FUNC_PTR_CAST(
(INIT_SECURITY_INTERFACE_A)GetProcAddress(g_SspiModule, "InitSecurityInterfaceA"); GetProcAddress(g_SspiModule, "InitSecurityInterfaceA"), INIT_SECURITY_INTERFACE_A);
if (pInitSecurityInterfaceW) if (pInitSecurityInterfaceW)
{ {
@ -124,11 +124,12 @@ BOOL InitializeSspiModule_Native(void)
g_SspiW->dwVersion = SECURITY_SUPPORT_PROVIDER_INTERFACE_VERSION_3; g_SspiW->dwVersion = SECURITY_SUPPORT_PROVIDER_INTERFACE_VERSION_3;
g_SspiW->SetContextAttributesW = g_SspiW->SetContextAttributesW = WINPR_FUNC_PTR_CAST(
(SET_CONTEXT_ATTRIBUTES_FN_W)GetProcAddress(g_SspiModule, "SetContextAttributesW"); GetProcAddress(g_SspiModule, "SetContextAttributesW"), SET_CONTEXT_ATTRIBUTES_FN_W);
g_SspiW->SetCredentialsAttributesW = (SET_CREDENTIALS_ATTRIBUTES_FN_W)GetProcAddress( g_SspiW->SetCredentialsAttributesW =
g_SspiModule, "SetCredentialsAttributesW"); WINPR_FUNC_PTR_CAST(GetProcAddress(g_SspiModule, "SetCredentialsAttributesW"),
SET_CREDENTIALS_ATTRIBUTES_FN_W);
} }
} }
@ -144,11 +145,12 @@ BOOL InitializeSspiModule_Native(void)
g_SspiA->dwVersion = SECURITY_SUPPORT_PROVIDER_INTERFACE_VERSION_3; g_SspiA->dwVersion = SECURITY_SUPPORT_PROVIDER_INTERFACE_VERSION_3;
g_SspiA->SetContextAttributesA = g_SspiA->SetContextAttributesA = WINPR_FUNC_PTR_CAST(
(SET_CONTEXT_ATTRIBUTES_FN_W)GetProcAddress(g_SspiModule, "SetContextAttributesA"); GetProcAddress(g_SspiModule, "SetContextAttributesA"), SET_CONTEXT_ATTRIBUTES_FN_W);
g_SspiA->SetCredentialsAttributesA = (SET_CREDENTIALS_ATTRIBUTES_FN_W)GetProcAddress( g_SspiA->SetCredentialsAttributesA =
g_SspiModule, "SetCredentialsAttributesA"); WINPR_FUNC_PTR_CAST(GetProcAddress(g_SspiModule, "SetCredentialsAttributesA"),
SET_CREDENTIALS_ATTRIBUTES_FN_W);
} }
} }

14
winpr/libwinpr/synch/barrier.c
View File

@ -70,12 +70,14 @@ static BOOL CALLBACK InitOnce_Barrier(PINIT_ONCE once, PVOID param, PVOID* conte
pfnInitializeSynchronizationBarrier = (fnInitializeSynchronizationBarrier)GetProcAddress( pfnInitializeSynchronizationBarrier = (fnInitializeSynchronizationBarrier)GetProcAddress(
g_Kernel32, "InitializeSynchronizationBarrier"); g_Kernel32, "InitializeSynchronizationBarrier");
pfnEnterSynchronizationBarrier = {
(fnEnterSynchronizationBarrier)GetProcAddress(g_Kernel32, "EnterSynchronizationBarrier"); FARPROC fp = GetProcAddress(g_Kernel32, "EnterSynchronizationBarrier");
pfnEnterSynchronizationBarrier = WINPR_FUNC_PTR_CAST(fp, fnEnterSynchronizationBarrier);
pfnDeleteSynchronizationBarrier = }
(fnDeleteSynchronizationBarrier)GetProcAddress(g_Kernel32, "DeleteSynchronizationBarrier"); {
FARPROC fp = GetProcAddress(g_Kernel32, "DeleteSynchronizationBarrier");
pfnDeleteSynchronizationBarrier = WINPR_FUNC_PTR_CAST(fp, fnDeleteSynchronizationBarrier);
}
if (pfnInitializeSynchronizationBarrier && pfnEnterSynchronizationBarrier && if (pfnInitializeSynchronizationBarrier && pfnEnterSynchronizationBarrier &&
pfnDeleteSynchronizationBarrier) pfnDeleteSynchronizationBarrier)
{ {

12
winpr/libwinpr/wtsapi/wtsapi.c
View File

@ -700,17 +700,13 @@ static BOOL LoadAndInitialize(char* library)
if (!g_WtsApiModule) if (!g_WtsApiModule)
return FALSE; return FALSE;
union FARPROC fp = GetProcAddress(g_WtsApiModule, "InitWtsApi");
{ INIT_WTSAPI_FN pInitWtsApi = WINPR_FUNC_PTR_CAST(fp, INIT_WTSAPI_FN);
FARPROC fp;
INIT_WTSAPI_FN pInitWtsApi;
} cnv;
cnv.fp = GetProcAddress(g_WtsApiModule, "InitWtsApi");
if (!cnv.pInitWtsApi) if (!pInitWtsApi)
return FALSE; return FALSE;
g_WtsApi = cnv.pInitWtsApi(); g_WtsApi = pInitWtsApi();
return TRUE; return TRUE;
} }