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fix playing of > 8MB wavs

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This commit is contained in:
Tim W 2018-07-15 02:39:19 +08:00
parent 01d8aacc0f
commit 1e97ef7c90
1 changed files with 15 additions and 6 deletions
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21
c/meterpreter/source/extensions/stdapi/server/audio/output.c
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@ -8,7 +8,7 @@
typedef struct
{
size_t size;
size_t offset;
void* buffer;
} AudioContext;
@ -23,13 +23,22 @@ static DWORD audio_channel_write(Channel *channel, Packet *request,
DWORD result = ERROR_SUCCESS;
size_t written = 0;
// Write the entire buffer
// Write to the buffer
if (bufferSize) {
if (!(ctx->buffer = calloc(1, bufferSize))) {
result = ERROR_NOT_ENOUGH_MEMORY;
char* newbuffer = 0;
if (ctx->buffer) {
newbuffer = realloc(ctx->buffer, ctx->offset + bufferSize);
} else {
memcpy(ctx->buffer, buffer, bufferSize);
newbuffer = malloc(bufferSize);
}
if (newbuffer) {
memcpy(newbuffer + ctx->offset, buffer, bufferSize);
ctx->buffer = newbuffer;
ctx->offset += bufferSize;
written = bufferSize;
} else {
result = ERROR_NOT_ENOUGH_MEMORY;
}
}
@ -49,7 +58,7 @@ static DWORD audio_channel_close(Channel *channel, Packet *request,
AudioContext *ctx = (AudioContext *)context;
// Play the audio buffer
sndPlaySound(ctx->buffer, SND_SYNC | SND_MEMORY);
sndPlaySound(ctx->buffer, SND_MEMORY);
if (ctx->buffer) {
free(ctx->buffer);