/* Some of this based on ao/src/ao_wav.c */
int write_prelim_header(OggVorbis_File *vf, FILE *out, ogg_int64_t knownlength) {
unsigned int size = 0x7fffffff;
int channels = ov_info(vf,0)->channels;
int samplerate = ov_info(vf,0)->rate;
int bytespersec = channels*samplerate*bits/8;
int align = channels*bits/8;
int samplesize = bits;
if(knownlength && knownlength*bits/8*channels < size)
size = (unsigned int)(knownlength*bits/8*channels+44) ;
memcpy(headbuf, "RIFF", 4);
WRITE_U32(headbuf+4, size-8);
memcpy(headbuf+8, "WAVE", 4);
memcpy(headbuf+12, "fmt ", 4);
WRITE_U32(headbuf+16, 16);
WRITE_U16(headbuf+20, 1); /* format */
WRITE_U16(headbuf+22, channels);
WRITE_U32(headbuf+24, samplerate);
WRITE_U32(headbuf+28, bytespersec);
WRITE_U16(headbuf+32, align);
WRITE_U16(headbuf+34, samplesize);
memcpy(headbuf+36, "data", 4);
WRITE_U32(headbuf+40, size - 44);
if(fwrite(headbuf, 1, 44, out) != 44) {
fprintf(stderr, _("ERROR: Failed to write Wave header: %s\n"), strerror(errno));
return 1;
}
return 0;
}
/* Reconstruct nabto header with crypto payload header. */
uint8_t* reconstruct_header(uint8_t* buf, const nabto_packet_header * hdr)
{
uint8_t* ptr;
// insert copy of request header (Length will be inserted later)
ptr = buf;
/* Write fixed part of packet header */
WRITE_U32(ptr, hdr->nsi_cp); ptr += 4;
WRITE_U32(ptr, hdr->nsi_sp); ptr += 4;
WRITE_U8(ptr, hdr->type); ptr += 1;
WRITE_U8(ptr, hdr->version); ptr += 1;
WRITE_U8(ptr, hdr->rsvd); ptr += 1;
WRITE_U8(ptr, hdr->flags | NP_PACKET_HDR_FLAG_RESPONSE); ptr += 1;
WRITE_U16(ptr, hdr->seq); ptr += 2;
/*WRITE_U16(ptr, len);*/ ptr += 2; /* Length to be packed later */
/* Write NSI.co to packet header (optional) */
if (hdr->flags & NP_PACKET_HDR_FLAG_NSI_CO) {
memcpy(ptr, (const void*) hdr->nsi_co, 8); ptr += 8;
}
/* Write tag to packet header (optional) */
if (hdr->flags & NP_PACKET_HDR_FLAG_TAG) {
WRITE_U16(ptr, hdr->tag); ptr += 2;
}
{
ptrdiff_t diff = ptr - buf;
if (hdr->hlen != (uint16_t)(diff)) {
NABTO_LOG_ERROR(("header length mismatch: %" PRIu16 " != %" PRIptrdiff " !!!!!!!!!!!!!!!!!!!", hdr->hlen, diff));
return NULL;
}
}
// insert crypto header (len and code will be inserted later)
WRITE_U8(ptr, NP_PAYLOAD_TYPE_CRYPTO); ptr += 1;
WRITE_U8(ptr, NP_PAYLOAD_HDR_FLAG_NONE); /*ptr += 1;
WRITE_U16(ptr, len); ptr += 2;
WRITE_U16(ptr, code); ptr += 2;*/
/* len and code is patched by unabto_encrypt() */ ptr += 5;
return ptr; /* return end of packet (so far) */
}
static void send_rendezvous_socket(nabto_socket_t socket, nabto_connect* con, uint16_t seq, nabto_endpoint* dest, nabto_endpoint *myAddress)
{
uint8_t* ptr;
uint8_t* buf = nabtoCommunicationBuffer;
ptr = insert_header(buf, 0, con->spnsi, U_CONNECT, false, seq, 0, 0);
ptr = insert_payload(ptr, NP_PAYLOAD_TYPE_EP, 0, 6);
WRITE_U32(ptr, dest->addr); ptr += 4;
WRITE_U16(ptr, dest->port); ptr += 2;
if (seq > 0) {
if (!myAddress) {
NABTO_LOG_ERROR(("Send rendezvous called with an invalid address"));
return;
} else {
ptr = insert_payload(ptr, NP_PAYLOAD_TYPE_EP, 0, 6);
WRITE_U32(ptr, myAddress->addr); ptr += 4;
WRITE_U16(ptr, myAddress->port); ptr += 2;
}
}
{
size_t len = ptr - buf;
insert_length(buf, len);
if (seq) {
NABTO_LOG_DEBUG((PRInsi " RENDEZVOUS Send to " PRIep ": seq=%" PRIu16 " " PRIep, MAKE_NSI_PRINTABLE(0, con->spnsi, 0), MAKE_EP_PRINTABLE(*dest), seq, MAKE_EP_PRINTABLE(*myAddress)));
} else {
NABTO_LOG_DEBUG((PRInsi " RENDEZVOUS Send to " PRIep ": seq=0", MAKE_NSI_PRINTABLE(0, con->spnsi, 0), MAKE_EP_PRINTABLE(*dest)));
}
if (dest->addr != 0 && dest->port != 0) {
nabto_write(socket, buf, len, dest->addr, dest->port);
} else {
NABTO_LOG_TRACE(("invalid rendezvous packet thrown away"));
}
}
}
bool unabto_util_test(void) {
uint8_t buf[] = {0x00,0x00,0x00,0x00,0x12, 0x34, 0x56, 0x78};
uint32_t* buf2 = (uint32_t*)buf;
uint32_t testNr;
uint16_t testu16;
bool ret = true;
READ_U32(testNr, buf+4);
if (testNr != 305419896) { // 0x12345678 in host byte order
NABTO_LOG_TRACE(("testNr: %i", testNr));
ret = false;
}
READ_U32(testNr, buf2+1);
if (testNr != 0x12345678) {
NABTO_LOG_TRACE(("testNr: %i", testNr));
ret = false;
}
READ_U16(testu16, buf+4);
if (testu16 != 4660) {
NABTO_LOG_TRACE(("testu16 read failed %i", testu16));
ret = false;
}
WRITE_U32(buf, 0x01020304);
if (buf[0] != 0x01 ||
buf[1] != 0x02 ||
buf[2] != 0x03 ||
buf[3] != 0x04) {
NABTO_LOG_TRACE(("WRITE u32 failed"));
ret = false;
}
WRITE_U16(buf, 0x0506);
if (buf[0] != 0x05 ||
buf[1] != 0x06) {
NABTO_LOG_TRACE(("WRITE u16 failed"));
ret = false;
}
return ret;
}
static int ao_wav_open(ao_device *device, ao_sample_format *format)
{
ao_wav_internal *internal = (ao_wav_internal *) device->internal;
unsigned char buf[WAV_HEADER_LEN];
int size = 0x7fffffff; /* Use a bogus size initially */
/* Store information */
internal->wave.common.wChannels = device->output_channels;
internal->wave.common.wBitsPerSample = ((format->bits+7)>>3)<<3;
internal->wave.common.wValidBitsPerSample = format->bits;
internal->wave.common.dwSamplesPerSec = format->rate;
memset(buf, 0, WAV_HEADER_LEN);
/* Fill out our wav-header with some information. */
strncpy(internal->wave.riff.id, "RIFF",4);
internal->wave.riff.len = size - 8;
strncpy(internal->wave.riff.wave_id, "WAVE",4);
strncpy(internal->wave.format.id, "fmt ",4);
internal->wave.format.len = 40;
internal->wave.common.wFormatTag = WAVE_FORMAT_EXTENSIBLE;
internal->wave.common.dwAvgBytesPerSec =
internal->wave.common.wChannels *
internal->wave.common.dwSamplesPerSec *
(internal->wave.common.wBitsPerSample >> 3);
internal->wave.common.wBlockAlign =
internal->wave.common.wChannels *
(internal->wave.common.wBitsPerSample >> 3);
internal->wave.common.cbSize = 22;
internal->wave.common.subFormat = WAVE_FORMAT_PCM;
internal->wave.common.dwChannelMask=device->output_mask;
strncpy(internal->wave.data.id, "data",4);
internal->wave.data.len = size - WAV_HEADER_LEN;
strncpy(buf, internal->wave.riff.id, 4);
WRITE_U32(buf+4, internal->wave.riff.len);
strncpy(buf+8, internal->wave.riff.wave_id, 4);
strncpy(buf+12, internal->wave.format.id,4);
WRITE_U32(buf+16, internal->wave.format.len);
WRITE_U16(buf+20, internal->wave.common.wFormatTag);
WRITE_U16(buf+22, internal->wave.common.wChannels);
WRITE_U32(buf+24, internal->wave.common.dwSamplesPerSec);
WRITE_U32(buf+28, internal->wave.common.dwAvgBytesPerSec);
WRITE_U16(buf+32, internal->wave.common.wBlockAlign);
WRITE_U16(buf+34, internal->wave.common.wBitsPerSample);
WRITE_U16(buf+36, internal->wave.common.cbSize);
WRITE_U16(buf+38, internal->wave.common.wValidBitsPerSample);
WRITE_U32(buf+40, internal->wave.common.dwChannelMask);
WRITE_U16(buf+44, internal->wave.common.subFormat);
memcpy(buf+46,"\x00\x00\x00\x00\x10\x00\x80\x00\x00\xAA\x00\x38\x9B\x71",14);
strncpy(buf+60, internal->wave.data.id, 4);
WRITE_U32(buf+64, internal->wave.data.len);
if (fwrite(buf, sizeof(char), WAV_HEADER_LEN, device->file)
!= WAV_HEADER_LEN) {
return 0; /* Could not write wav header */
}
device->driver_byte_format = AO_FMT_LITTLE;
return 1;
}