#include "config.h"

#include "p11-tests.h"

#include <dlfcn.h>

static void *module = NULL;
CK_FUNCTION_LIST_PTR p11_funcs = NULL;

void
p11t_module_load(const char *filename)
{
	CK_C_GetFunctionList get_function_list;
	CK_RV rv;

	module = dlopen(filename, RTLD_NOW);
	if(!module)
		p11t_msg_fatal("couldn't open library: %s: %s", filename, dlerror());

	/* Lookup the appropriate function in library */
	get_function_list = (CK_C_GetFunctionList)dlsym (module, "C_GetFunctionList");
	if(!get_function_list)
		p11t_msg_fatal("couldn't find C_GetFunctionList function in library: %s: %s", filename, dlerror());

	/* Get the function list */
	rv = (get_function_list)(&p11_funcs);
	if(rv != CKR_OK)
		p11t_msg_fatal("couldn't get function list: %s", p11t_msg_rv(rv));

	/* Make sure we have a compatible version */
	if(p11_funcs->version.major != CRYPTOKI_VERSION_MAJOR)
		p11t_msg_fatal("incompatible version of pkcs11 module: %d.%d",
		               (int)p11_funcs->version.major,
		               (int)p11_funcs->version.minor);
}

void
p11t_module_unload(void)
{
	if(module)
		dlclose(module);
	module = NULL;
}