forked from Dniel97/segatools
86 lines
1.7 KiB
C
86 lines
1.7 KiB
C
#include <windows.h>
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#include <assert.h>
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#include <stdbool.h>
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#include <stdlib.h>
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#include "hook/com-proxy.h"
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#include "hook/table.h"
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#include "hooklib/config.h"
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#include "hooklib/dll.h"
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#include "hooklib/dvd.h"
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#include "util/dprintf.h"
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/* API hooks */
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static DWORD WINAPI hook_QueryDosDeviceW(
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const wchar_t *lpDeviceName,
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wchar_t *lpTargetPath,
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DWORD ucchMax);
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/* Link pointers */
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static DWORD (WINAPI *next_QueryDosDeviceW)(
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const wchar_t *lpDeviceName,
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wchar_t *lpTargetPath,
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DWORD ucchMax);
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static bool dvd_hook_initted;
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static struct dvd_config dvd_config;
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static const struct hook_symbol dvd_hooks[] = {
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{
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.name = "QueryDosDeviceW",
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.patch = hook_QueryDosDeviceW,
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.link = (void **) &next_QueryDosDeviceW
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},
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};
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void dvd_hook_init(const struct dvd_config *cfg, HINSTANCE self)
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{
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assert(cfg != NULL);
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if (!cfg->enable) {
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return;
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}
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/* Init is not thread safe because API hook init is not thread safe blah
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blah blah you know the drill by now. */
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if (dvd_hook_initted) {
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return;
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}
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dvd_hook_initted = true;
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memcpy(&dvd_config, cfg, sizeof(*cfg));
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hook_table_apply(NULL, "kernel32.dll", dvd_hooks, _countof(dvd_hooks));
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dprintf("DVD: hook enabled.\n");
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}
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DWORD WINAPI hook_QueryDosDeviceW(
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const wchar_t *lpDeviceName,
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wchar_t *lpTargetPath,
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DWORD ucchMax)
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{
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DWORD ok;
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wchar_t *p_dest;
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wchar_t *dvd_string = L"CdRom";
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ok = next_QueryDosDeviceW(
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lpDeviceName,
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lpTargetPath,
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ucchMax);
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p_dest = wcsstr (lpTargetPath, dvd_string);
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if ( p_dest != NULL ) {
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dprintf("DVD: Hiding DVD drive.\n");
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return 0;
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}
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return ok;
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}
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