sound driver version detect code takes DLL search path into account; hardened
This was SVN commit r1378.
This commit is contained in:
parent
3b5ab280d4
commit
4596b7dfc8
@ -20,6 +20,7 @@
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#include "detect.h"
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#include "lib.h"
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#include "lib/res/file.h" // file_enum
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#include "win_internal.h"
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@ -27,8 +28,39 @@
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#include <stdio.h>
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#include <stdlib.h>
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// these are all delay-loaded - they're not needed if these
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// routines are never called (to return system info).
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#include <set>
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#include <string>
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// DirectSound header
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// HACK: workaround for "subwtype.h not found" errors on VC6/7 hybrid.
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// (subwtype.h <- d3dtypes.h <- dsound.h)
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// since we're only using one DS function (DirectSoundEnumerate),
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// we forward-declare it rather than fix/mess with the system headers.
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#if 0
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// mmsystem.h is necessary for dsound.h; we cut out unnecessary junk
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# define MMNODRV // Installable driver support
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# define MMNOSOUND // Sound support
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//# define MMNOWAVE // Waveform support
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# define MMNOMIDI // MIDI support
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# define MMNOAUX // Auxiliary audio support
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# define MMNOMIXER // Mixer support
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# define MMNOTIMER // Timer support
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# define MMNOJOY // Joystick support
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# define MMNOMCI // MCI support
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# define MMNOMMIO // Multimedia file I/O support
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# define MMNOMMSYSTEM // General MMSYSTEM functions
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# include <MMSystem.h>
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# define DIRECTSOUND_VERSION 0x0500
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# include <dsound.h>
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#else
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# define DS_OK 0
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typedef BOOL (CALLBACK* LPDSENUMCALLBACKA)(void*, const char*, const char*, void*);
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extern "C" __declspec(dllimport) HRESULT WINAPI DirectSoundEnumerateA(LPDSENUMCALLBACKA, void*);
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#endif
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// these are all delay-loaded - they're not needed if
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// system information is never queried.
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#ifdef _MSC_VER
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#pragma comment(lib, "version.lib") // DLL version
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#pragma comment(lib, "advapi32.lib") // registry
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@ -36,6 +68,50 @@
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#endif
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static int get_ver(const char* module, char* out_ver, size_t out_ver_len)
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{
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WIN_SAVE_LAST_ERROR; // GetFileVersion*, Ver*
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// allocate as much mem as required
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DWORD unused;
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const DWORD ver_size = GetFileVersionInfoSize(module, &unused);
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if(!ver_size)
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return -1;
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void* const buf = malloc(ver_size);
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if(!buf)
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return ERR_NO_MEM;
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// from here on, we set and later return this variable -
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// can't return directly, since we've allocated memory.
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int ret = -1;
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if(GetFileVersionInfo(module, 0, ver_size, buf))
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{
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u16* lang; // -> 16 bit language ID, 16 bit codepage
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uint lang_len;
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const BOOL ok = VerQueryValue(buf, "\\VarFileInfo\\Translation", (void**)&lang, &lang_len);
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if(ok && lang && lang_len == 4)
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{
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char subblock[64];
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sprintf(subblock, "\\StringFileInfo\\%04X%04X\\FileVersion", lang[0], lang[1]);
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const char* in_ver;
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uint in_ver_len;
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if(VerQueryValue(buf, subblock, (void**)&in_ver, &in_ver_len))
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{
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strncpy(out_ver, in_ver, out_ver_len);
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ret = 0; // success
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}
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}
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}
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free(buf);
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WIN_RESTORE_LAST_ERROR;
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return ret;
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}
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// EnumDisplayDevices is not available on Win95 or NT.
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// try to import it manually here; return -1 if not available.
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static BOOL (WINAPI *pEnumDisplayDevicesA)(void*, DWORD, void*, DWORD);
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@ -98,22 +174,11 @@ int get_monitor_size(int& width_mm, int& height_mm)
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}
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static int win_get_gfx_card()
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{
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if(gfx_card[0] != '\0')
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return -1;
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// make sure EnumDisplayDevices is available (as pEnumDisplayDevicesA)
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if(import_EnumDisplayDevices() < 0)
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return -1;
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DISPLAY_DEVICEA dev = { sizeof(dev) };
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if(!pEnumDisplayDevicesA(0, 0, &dev, 0))
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return -1;
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strncpy(gfx_card, (const char*)dev.DeviceString, GFX_CARD_LEN-1);
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return 0;
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}
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//////////////////////////////////////////////////////////////////////////////
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//
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// graphics card / driver version
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//
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//////////////////////////////////////////////////////////////////////////////
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// get the name of the OpenGL driver DLL (used to determine driver version).
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@ -165,50 +230,27 @@ static int get_ogl_drv_name(char* const ogl_drv_name, const size_t max_name_len)
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}
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static int get_ver(const char* module, char* out_ver, size_t out_ver_len)
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static int win_get_gfx_card()
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{
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WIN_SAVE_LAST_ERROR; // GetFileVersion*, Ver*
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// allocate as much mem as required
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DWORD unused;
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const DWORD ver_size = GetFileVersionInfoSize(module, &unused);
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if(!ver_size)
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if(gfx_card[0] != '\0')
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return -1;
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void* const buf = malloc(ver_size);
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if(!buf)
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return ERR_NO_MEM;
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// from here on, we set and later return this variable -
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// can't return directly, since we've allocated memory.
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int ret = -1;
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if(GetFileVersionInfo(module, 0, ver_size, buf))
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// make sure EnumDisplayDevices is available (as pEnumDisplayDevicesA)
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if(import_EnumDisplayDevices() >= 0)
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{
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u16* lang; // -> 16 bit language ID, 16 bit codepage
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uint lang_len;
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const BOOL ok = VerQueryValue(buf, "\\VarFileInfo\\Translation", (void**)&lang, &lang_len);
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if(ok && lang && lang_len == 4)
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DISPLAY_DEVICEA dev = { sizeof(dev) };
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if(pEnumDisplayDevicesA(0, 0, &dev, 0))
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{
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char subblock[64];
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sprintf(subblock, "\\StringFileInfo\\%04X%04X\\FileVersion", lang[0], lang[1]);
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const char* in_ver;
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uint in_ver_len;
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if(VerQueryValue(buf, subblock, (void**)&in_ver, &in_ver_len))
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{
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strncpy(out_ver, in_ver, out_ver_len);
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ret = 0; // success
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}
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strncpy(gfx_card, (const char*)dev.DeviceString, GFX_CARD_LEN-1);
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return 0;
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}
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}
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free(buf);
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WIN_RESTORE_LAST_ERROR;
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return ret;
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return -1;
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}
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int win_get_gfx_drv_ver()
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static int win_get_gfx_drv_ver()
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{
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if(gfx_drv_ver[0] != '\0')
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return -1;
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@ -231,106 +273,147 @@ int win_get_gfx_info()
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}
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//////////////////////////////////////////////////////////////////////////////
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//
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// sound card / driver version
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//
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//////////////////////////////////////////////////////////////////////////////
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// note: OpenAL alGetString is worthless: it only returns OpenAL API version
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// and renderer (e.g. "Software").
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// problem when including dsound.h: subwtype.h
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// (included via d3dtypes.h and dsound.h) isn't present on VC6/7 hybrid.
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// we're only using one DirectSound function ATM, so we'll declare it here.
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//
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// write list of sound driver DLLs and their versions into snd_drv_ver.
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//
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// be careful to respect library search order: DLLs in the executable's
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// starting directory hide those of the same name in the system directory.
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//
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#if 0
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// mmsystem.h is necessary for dsound.h; we cut out unnecessary junk
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# define MMNODRV // Installable driver support
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# define MMNOSOUND // Sound support
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//# define MMNOWAVE // Waveform support
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# define MMNOMIDI // MIDI support
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# define MMNOAUX // Auxiliary audio support
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# define MMNOMIXER // Mixer support
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# define MMNOTIMER // Timer support
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# define MMNOJOY // Joystick support
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# define MMNOMCI // MCI support
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# define MMNOMMIO // Multimedia file I/O support
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# define MMNOMMSYSTEM // General MMSYSTEM functions
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# include <MMSystem.h>
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# define DIRECTSOUND_VERSION 0x0500
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# include <dsound.h>
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#else
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typedef BOOL (CALLBACK* LPDSENUMCALLBACKA)(void*, const char*, const char*, void*);
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extern "C" __declspec(dllimport) HRESULT WINAPI DirectSoundEnumerateA(LPDSENUMCALLBACKA, void*);
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#define DS_OK 0
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#endif
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static std::set<std::string> dlls_already_added;
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static char* snd_drv_ver_pos = snd_drv_ver;
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// driver strings will be appended here.
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// if we haven't seen this DLL yet, read its file version and
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// append that and its name to the list.
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//
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// dll_path: complete path to DLL (ensures we don't inadvertently
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// load another one that's on the library search path). no trailing '\\'.
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static void list_add_dll(const char* dll_path)
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{
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// read file version.
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char dll_ver[32];
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if(get_ver(dll_path, dll_ver, sizeof(dll_ver)) < 0)
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strcpy(dll_ver, "unknown version");
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// get filename for "already added" check.
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const char* dll_fn = strrchr(dll_path, '\\')+1;
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assert(dll_fn != (const char*)1); // fires if dll_path was a filename
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// make sure it hasn't been added yet.
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if(dlls_already_added.find(dll_fn) != dlls_already_added.end())
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return;
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dlls_already_added.insert(dll_fn);
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// not first time: prepend comma to string.
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if(snd_drv_ver_pos != snd_drv_ver)
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snd_drv_ver_pos += sprintf(snd_drv_ver_pos, ", ");
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snd_drv_ver_pos += sprintf(snd_drv_ver_pos, "%s (%s)", dll_fn, dll_ver);
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}
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// check_if_oal_dll needs to prepend directory to the filename it gets
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// (for list_add_dll). it appends filename to directory in a buffer allocated
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// list_check_dir (more efficient, less memory use than copying).
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struct PathInfo
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{
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const char* path;
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char* end;
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size_t remaining;
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};
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// if this file is an OpenAL DLL, add it to our list.
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// (match "*oal.dll" and "*OpenAL*", as with OpenAL router's search).
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static int check_if_oal_dll(const char* fn, const ssize_t size, const uintptr_t user)
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{
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PathInfo* pi = (PathInfo*)user;
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strncpy(pi->end, fn, pi->remaining);
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const size_t len = strlen(fn);
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const bool oal = len >= 7 && !stricmp(fn+len-7, "oal.dll");
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const bool openal = strstr(fn, "OpenAL") != 0;
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if(oal || openal)
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list_add_dll(pi->path);
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return 0; // continue calling
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}
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// find all OpenAL DLLs in a dir (via file_enum and check_if_oal_dll).
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// call in library search order (exe dir, then win sys dir).
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//
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// dir: no trailing '\\'.
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static void list_check_dir(const char* dir)
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{
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char path[MAX_PATH+1]; path[MAX_PATH] = '\0';
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const int len = snprintf(path, MAX_PATH, "%s\\", dir);
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if(len < 0)
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{
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assert(0);
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return;
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}
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const PathInfo pi = { path, path+len, MAX_PATH-len };
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file_enum(path, check_if_oal_dll, (uintptr_t)&pi);
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}
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// free memory used while building the list;
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// required before again building a new list.
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static void list_free_mem()
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{
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dlls_already_added.clear();
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snd_drv_ver_pos = snd_drv_ver;
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}
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// path to DS3D driver; filled by callback, used when checking version.
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static char ds_drv_name[MAX_PATH+1];
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static int __stdcall ds_enum(void* guid, const char* description, const char* module, void* ctx)
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// store sound card name and path to DirectSound driver.
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// called for each DirectSound driver, but aborts after first valid driver.
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static BOOL CALLBACK ds_enum(void* guid, const char* description, const char* module, void* ctx)
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{
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// skip if description == "Primary Sound Driver"
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// skip first (dummy) entry, where description == "Primary Sound Driver".
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if(module[0] == '\0')
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return true; // continue calling
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return TRUE; // continue calling
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// stick with the first "driver name" (sound card) we get;
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// in case there are several, we assume this is the one we want.
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strncpy(snd_card, description, SND_CARD_LEN-1);
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// .. DirectSound driver is in "$system\drivers\";
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// save its path for version check later.
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// store DirectSound driver name for version check later
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// (it's in "win_sys_dir\drivers\").
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snprintf(ds_drv_name, MAX_PATH, "%s\\drivers\\%s", win_sys_dir, module);
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return false; // stop calling
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}
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static char* snd_drv_ver_pos = snd_drv_ver;
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// module: complete path or filename only (if on default library search path)
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static void add_drv(const char* module)
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{
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char ver[32];
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if(get_ver(module, ver, sizeof(ver)) < 0)
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strcpy(ver, "unknown version");
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const char* module_fn = strrchr(module, '\\');
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if(!module_fn)
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module_fn = module;
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else
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module_fn++;
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// not first time: prepend comma
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if(snd_drv_ver_pos != snd_drv_ver)
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snd_drv_ver_pos += sprintf(snd_drv_ver_pos, ", ");
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snd_drv_ver_pos += sprintf(snd_drv_ver_pos, "%s (%s)", module_fn, ver);
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return FALSE; // stop calling
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}
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int win_get_snd_info()
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{
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// get sound card name
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if(DirectSoundEnumerateA((LPDSENUMCALLBACKA)ds_enum, (void*)0) != DS_OK)
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debug_warn("DirectSoundEnumerate failed");
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// find all DLLs related to OpenAL and retrieve their versions.
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// (search system dir for *oal.dll and *OpenAL*,
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// which is also how the router finds implementations).
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add_drv(ds_drv_name);
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DIR* dir = opendir(win_sys_dir);
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if(!dir)
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{
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assert(0);
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return -1;
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}
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while(dirent* ent = readdir(dir))
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{
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const char* fn = ent->d_name;
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const size_t len = strlen(fn);
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const bool oal = len > 7 && !stricmp(fn+len-7, "oal.dll");
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const bool openal = strstr(fn, "OpenAL") != 0;
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if(oal || openal)
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add_drv(fn);
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}
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closedir(dir);
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// find all DLLs related to OpenAL, retrieve their versions,
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// and store in snd_drv_ver string.
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list_add_dll(ds_drv_name);
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list_check_dir(win_exe_dir);
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list_check_dir(win_sys_dir);
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list_free_mem();
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return 0;
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}
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