Add dl wrapper

include/gmssl/dylib.h

@@ -0,0 +1,54 @@
+/*
+ *  Copyright 2014-2022 The GmSSL Project. All Rights Reserved.
+ *
+ *  Licensed under the Apache License, Version 2.0 (the License); you may
+ *  not use this file except in compliance with the License.
+ *
+ *  http://www.apache.org/licenses/LICENSE-2.0
+ */
+
+
+#ifndef GMSSL_DYLIB_H
+#define GMSSL_DYLIB_H
+
+#include <string.h>
+#include <stdint.h>
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+
+#ifdef WIN32
+
+#include <windows.h>
+
+typedef HMODULE dylib_handle_t;
+
+#define dylib_load_library(so_path)	LoadLibraryA(so_path)
+#define dylib_get_function(handle,name)	GetProcAddress(handle,name)
+#define dylib_close_library(handle)
+#define dylib_error_str()
+
+
+#else
+
+#include <dlfcn.h>
+
+typedef void *dylib_handle_t;
+
+#define dylib_load_library(so_path)	dlopen(so_path,RTLD_LAZY)
+#define dylib_get_function(handle,name)	dlsym(handle,name)
+#define dylib_close_library(handle)	dlclose(handle)
+#define dylib_error_str()		dlerror()
+
+
+#endif
+
+
+
+
+#ifdef __cplusplus
+}
+#endif
+#endif

src/sdf/sdf_int.h

@@ -11,11 +11,10 @@
 #ifndef SDFUTIL_SDF_METH_H
 #define SDFUTIL_SDF_METH_H
 
+
+#include <gmssl/dylib.h>
 #include "sdf.h"
 
-#ifdef WIN32
-#include <windows.h>
-#endif
 
 typedef int (*SDF_OpenDevice_FuncPtr)(
 	void **phDeviceHandle);
@@ -350,11 +349,8 @@ typedef int (*SDF_DeleteObject_FuncPtr)(
 
 typedef struct sdf_method_st {
 	char *name;
-#ifdef WIN32
-	HMODULE dso;
-#else
-	void *dso;
-#endif
+	dylib_handle_t dso;
+
 	SDF_OpenDevice_FuncPtr OpenDevice;
 	SDF_CloseDevice_FuncPtr CloseDevice;
 	SDF_OpenSession_FuncPtr OpenSession;

src/sdf/sdf_meth.c

@@ -11,22 +11,13 @@
 #include <stdio.h>
 #include <stdlib.h>
 #include <string.h>
-#ifdef WIN32
-#include <windows.h>
-#else
-#include <dlfcn.h>
-#endif
+#include <gmssl/dylib.h>
 #include "sdf_int.h"
 
 #define SDFerr(a,b)
 
-#ifdef WIN32
 #define SDF_METHOD_BIND_FUNCTION_EX(func,name) \
-	sdf->func = (SDF_##func##_FuncPtr)GetProcAddress(sdf->dso, "SDF_"#name)
-#else
-#define SDF_METHOD_BIND_FUNCTION_EX(func,name) \
-	sdf->func = (SDF_##func##_FuncPtr)dlsym(sdf->dso, "SDF_"#name)
-#endif
+	sdf->func = (SDF_##func##_FuncPtr)dylib_get_function(sdf->dso, "SDF_"#name)
 
 #define SDF_METHOD_BIND_FUNCTION(func) \
 	SDF_METHOD_BIND_FUNCTION_EX(func,func)
@@ -42,19 +33,11 @@ SDF_METHOD *SDF_METHOD_load_library(const char *so_path)
 	}
 	memset(sdf, 0, sizeof(*sdf));
 
-#ifdef WIN32
-	if ((sdf->dso = LoadLibraryA(so_path)) == NULL) {
+	if (!(sdf->dso = dylib_load_library(so_path))) {
+		fprintf(stderr, "%s %d: %s\n", __FILE__, __LINE__, dylib_error_str());
 		goto end;
 	}
 
-#else
-	if (!(sdf->dso = dlopen(so_path, 0/*RTLD_LAZY*/))) { // FIXME: dlfcn.h, dlopen, RTLD_LAZY not in windows!
-		fprintf(stderr, "%s %d: %s\n", __FILE__, __LINE__, dlerror());
-		SDFerr(SDF_F_SDF_METHOD_LOAD_LIBRARY, SDF_R_DSO_LOAD_FAILURE);
-		goto end;
-	}
-#endif
-
 	SDF_METHOD_BIND_FUNCTION(OpenDevice);
 	SDF_METHOD_BIND_FUNCTION(CloseDevice);
 	SDF_METHOD_BIND_FUNCTION(OpenSession);

src/skf/skf_int.h

@@ -11,12 +11,10 @@
 #ifndef SKFUTIL_SKF_INT_H
 #define SKFUTIL_SKF_INT_H
 
+#include <gmssl/dylib.h>
 #include "../sgd.h"
 #include "skf.h"
 
-#ifdef WIN32
-#include <windows.h>
-#endif
 
 
 typedef ULONG (DEVAPI *SKF_WaitForDevEvent_FuncPtr)(
@@ -476,11 +474,8 @@ typedef ULONG (DEVAPI *SKF_CloseHandle_FuncPtr)(
 
 typedef struct skf_method_st {
 	char *name;
-#ifdef WIN32
-	HMODULE dso;
-#else
-	void *dso;
-#endif
+	dylib_handle_t dso;
+
 	SKF_WaitForDevEvent_FuncPtr WaitForDevEvent;
 	SKF_CancelWaitForDevEvent_FuncPtr CancelWaitForDevEvent;
 	SKF_EnumDev_FuncPtr EnumDev;

src/skf/skf_meth.c

@@ -11,24 +11,15 @@
 #include <stdio.h>
 #include <string.h>
 #include <stdlib.h>
-#ifdef WIN32
-#include <windows.h>
-#else
-#include <dlfcn.h>
-#endif
+#include <gmssl/dylib.h>
 #include "skf.h"
 #include "skf_ext.h"
 #include "skf_int.h"
 
 #define SKFerr(e,r)
 
-#ifdef WIN32
 #define SKF_METHOD_BIND_FUNCTION_EX(func,name) \
-	skf->func = (SKF_##func##_FuncPtr)GetProcAddress(skf->dso, "SKF_"#name)
-#else
-#define SKF_METHOD_BIND_FUNCTION_EX(func,name) \
-	skf->func = (SKF_##func##_FuncPtr)dlsym(skf->dso, "SKF_"#name)
-#endif
+	skf->func = (SKF_##func##_FuncPtr)dylib_get_function(skf->dso, "SKF_"#name)
 
 #define SKF_METHOD_BIND_FUNCTION(func) \
 	SKF_METHOD_BIND_FUNCTION_EX(func,func)
@@ -43,17 +34,10 @@ SKF_METHOD *SKF_METHOD_load_library(const char *so_path)
 		SKFerr(SKF_F_SKF_METHOD_LOAD_LIBRARY, ERR_R_MALLOC_FAILURE);
 		goto end;
 	}
-#ifdef WIN32
-	if ((skf->dso = LoadLibraryA(so_path)) == NULL) {
-		goto end;
-	}
-
-#else	
-	if (!(skf->dso = dlopen(so_path, 0/*RTLD_LAZY*/))) {//FIXME:dlopen not in windows			
+	if (!(skf->dso = dylib_load_library(so_path))) {
 		SKFerr(SKF_F_SKF_METHOD_LOAD_LIBRARY, SKF_R_DSO_LOAD_FAILURE);
 		goto end;
 	}
-#endif
 
 	SKF_METHOD_BIND_FUNCTION(WaitForDevEvent);
 	SKF_METHOD_BIND_FUNCTION(CancelWaitForDevEvent);