reactos/modules/rosapps/applications/devutils/shimtest_ros/shimtest_ros.c

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/*
* PROJECT: Shim test application
* LICENSE: GPL-2.0+ (https://spdx.org/licenses/GPL-2.0+)
* PURPOSE: Test application for the shim engine
* COPYRIGHT: Copyright 2019 Mark Jansen (mark.jansen@reactos.org)
*/
#include <stdio.h>
#include <stdlib.h>
#include <ctype.h>
#include <ntndk.h>
#include <winbase.h>
NTSYSAPI ULONG NTAPI vDbgPrintEx(_In_ ULONG ComponentId, _In_ ULONG Level, _In_z_ PCCH Format, _In_ va_list ap);
#define DPFLTR_ERROR_LEVEL 0
void xprintf(const char *fmt, ...)
{
va_list ap;
va_start(ap, fmt);
vprintf(fmt, ap);
vDbgPrintEx(-1, DPFLTR_ERROR_LEVEL, fmt, ap);
va_end(ap);
}
void test_normal_imports()
{
char buf[100];
DWORD dwSize;
HMODULE mod;
BOOL (WINAPI *p_GetComputerNameA)(LPSTR lpBuffer, LPDWORD lpnSize);
/* Call it directly */
ZeroMemory(buf, sizeof(buf));
dwSize = sizeof(buf);
if (!GetComputerNameA(buf, &dwSize))
{
xprintf("GetComputerNameA failed: %d\n", GetLastError());
}
else
{
xprintf("GetComputerNameA returned: '%s'\n", buf);
}
/* Call it using GetProcAddress */
mod = GetModuleHandleA("kernel32.dll");
p_GetComputerNameA = (void*)GetProcAddress(mod, "GetComputerNameA");
if (p_GetComputerNameA == NULL)
{
xprintf("GetProcAddress failed: %d\n", GetLastError());
}
else
{
ZeroMemory(buf, sizeof(buf));
dwSize = sizeof(buf);
if (!p_GetComputerNameA(buf, &dwSize))
{
xprintf("p_GetComputerNameA failed: %d\n", GetLastError());
}
else
{
xprintf("p_GetComputerNameA returned: '%s'\n", buf);
}
}
}
INT WINAPI SHStringFromGUIDA(REFGUID,LPSTR,INT);
void test_ordinal_imports()
{
GUID guid = { 0x11223344, 0x5566, 0x7788 };
char buf[100];
int r;
HMODULE mod;
INT (WINAPI *p_SHStringFromGUIDA)(REFGUID guid, LPSTR lpszDest, INT cchMax);
/* Call it directly */
ZeroMemory(buf, sizeof(buf));
r = SHStringFromGUIDA(&guid, buf, _countof(buf)-1);
if (r)
{
xprintf("SHStringFromGUIDA failed (%d)\n", r);
}
else
{
xprintf("SHStringFromGUIDA returned: '%s'\n", buf);
}
/* Call it using GetProcAddress */
mod = GetModuleHandleA("shlwapi.dll");
p_SHStringFromGUIDA = (void*)GetProcAddress(mod, (LPCSTR)23);
if (p_SHStringFromGUIDA == NULL)
{
xprintf("GetProcAddress failed: %d\n", GetLastError());
}
else
{
ZeroMemory(buf, sizeof(buf));
r = p_SHStringFromGUIDA(&guid, buf, _countof(buf)-1);
if (r)
{
xprintf("p_SHStringFromGUIDA failed (%d)\n", r);
}
else
{
xprintf("p_SHStringFromGUIDA returned: '%s'\n", buf);
}
}
}
int main(int argc, char* argv[])
{
xprintf("Normal import (kernel32!GetComputerNameA)\n");
test_normal_imports();
xprintf("\nOrdinal import (shlwapi!#23)\n");
test_ordinal_imports();
return 0;
}