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(#3767) Some protection from malicious qvms - patches and ideas by Amanieu d'Antras and Ben Millwood

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This commit is contained in:
Thilo Schulz 2011-03-08 01:39:34 +00:00
parent 657c791257
commit 8c3f320504
12 changed files with 155 additions and 26 deletions
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47
code/client/snd_openal.c
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@ -41,7 +41,9 @@ cvar_t *s_alRolloff;
cvar_t *s_alGraceDistance;
cvar_t *s_alDriver;
cvar_t *s_alDevice;
cvar_t *s_alInputDevice;
cvar_t *s_alAvailableDevices;
cvar_t *s_alAvailableInputDevices;
/*
=================
@ -2278,11 +2280,17 @@ void S_AL_SoundInfo( void )
Com_Printf( " ALC Extensions: %s\n", qalcGetString( alDevice, ALC_EXTENSIONS ) );
if(qalcIsExtensionPresent(NULL, "ALC_ENUMERATION_EXT"))
{
Com_Printf(" Device: %s\n", qalcGetString(alDevice, ALC_DEVICE_SPECIFIER));
Com_Printf(" Device: %s\n", qalcGetString(alDevice, ALC_DEVICE_SPECIFIER));
Com_Printf("Available Devices:\n%s", s_alAvailableDevices->string);
#ifdef USE_VOIP
Com_Printf("Input Device: %s\n", qalcGetString(alCaptureDevice, ALC_DEVICE_SPECIFIER));
Com_Printf("Available Input Devices:\n%s", s_alAvailableInputDevices->string);
#endif
}
}
/*
=================
S_AL_Shutdown
@ -2331,6 +2339,7 @@ qboolean S_AL_Init( soundInterface_t *si )
{
#ifdef USE_OPENAL
const char* device = NULL;
const char* inputdevice = NULL;
int i;
if( !si ) {
@ -2355,6 +2364,7 @@ qboolean S_AL_Init( soundInterface_t *si )
s_alGraceDistance = Cvar_Get("s_alGraceDistance", "512", CVAR_CHEAT);
s_alDriver = Cvar_Get( "s_alDriver", ALDRIVER_DEFAULT, CVAR_ARCHIVE | CVAR_LATCH );
s_alInputDevice = Cvar_Get( "s_alInputDevice", ALDRIVER_DEFAULT, CVAR_ARCHIVE | CVAR_LATCH );
s_alDevice = Cvar_Get("s_alDevice", "", CVAR_ARCHIVE | CVAR_LATCH);
@ -2369,6 +2379,10 @@ qboolean S_AL_Init( soundInterface_t *si )
if(device && !*device)
device = NULL;
inputdevice = s_alInputDevice->string;
if(inputdevice && !*inputdevice)
inputdevice = NULL;
// Device enumeration support (extension is implemented reasonably only on Windows right now).
if(qalcIsExtensionPresent(NULL, "ALC_ENUMERATION_EXT"))
{
@ -2378,7 +2392,7 @@ qboolean S_AL_Init( soundInterface_t *si )
int curlen;
// get all available devices + the default device name.
devicelist = qalcGetString(NULL, ALC_DEVICE_SPECIFIER);
devicelist = qalcGetString(NULL, ALC_ALL_DEVICES_SPECIFIER);
defaultdevice = qalcGetString(NULL, ALC_DEFAULT_DEVICE_SPECIFIER);
#ifdef _WIN32
@ -2468,13 +2482,36 @@ qboolean S_AL_Init( soundInterface_t *si )
}
else
{
char inputdevicenames[1024] = "";
const char *inputdevicelist;
const char *defaultinputdevice;
int curlen;
// get all available input devices + the default input device name.
inputdevicelist = qalcGetString(NULL, ALC_CAPTURE_DEVICE_SPECIFIER);
defaultinputdevice = qalcGetString(NULL, ALC_CAPTURE_DEFAULT_DEVICE_SPECIFIER);
// dump a list of available devices to a cvar for the user to see.
while((curlen = strlen(inputdevicelist)))
{
Q_strcat(inputdevicenames, sizeof(inputdevicenames), inputdevicelist);
Q_strcat(inputdevicenames, sizeof(inputdevicenames), "\n");
inputdevicelist += curlen + 1;
}
s_alAvailableInputDevices = Cvar_Get("s_alAvailableInputDevices", inputdevicenames, CVAR_ROM | CVAR_NORESTART);
// !!! FIXME: 8000Hz is what Speex narrowband mode needs, but we
// !!! FIXME: should probably open the capture device after
// !!! FIXME: initializing Speex so we can change to wideband
// !!! FIXME: if we like.
Com_Printf("OpenAL default capture device is '%s'\n",
qalcGetString(NULL, ALC_CAPTURE_DEFAULT_DEVICE_SPECIFIER));
alCaptureDevice = qalcCaptureOpenDevice(NULL, 8000, AL_FORMAT_MONO16, 4096);
Com_Printf("OpenAL default capture device is '%s'\n", defaultinputdevice);
alCaptureDevice = qalcCaptureOpenDevice(inputdevice, 8000, AL_FORMAT_MONO16, 4096);
if( !alCaptureDevice && inputdevice )
{
Com_Printf( "Failed to open OpenAL Input device '%s', trying default.\n", inputdevice );
alCaptureDevice = qalcCaptureOpenDevice(NULL, 8000, AL_FORMAT_MONO16, 4096);
}
Com_Printf( "OpenAL capture device %s.\n",
(alCaptureDevice == NULL) ? "failed to open" : "opened");
}