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cwMdns.cpp : Working with TCP opening query/response.

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This commit is contained in:
kpl 2020-01-29 13:34:23 -05:00
parent 01045493ba
commit fafc6643de
1 changed files with 53 additions and 12 deletions
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65
cwMdns.cpp
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@ -925,7 +925,7 @@ namespace cw
char addrBuf[ INET_ADDRSTRLEN ];
socket::addrToString( fromAddr, addrBuf, INET_ADDRSTRLEN );
p->cbN += 1;
if( true )
if( false )
{
printf("%i bytes:%i %s\n", p->cbN, dataByteCnt, addrBuf );
print_hex( (const char*)data, dataByteCnt );
@ -933,36 +933,74 @@ namespace cw
}
}
rc_t send_response( mdns_app_t* app, socket::handle_t sockH )
{
rc_t rc = kOkRC;
// send_response( app, sockH );
// wifi: 98 5A EB 89 BA AA
// enet: 38 C9 86 37 44 E7
unsigned char buf[] =
{ 0x0b,0x00,0x00,0x00,0x00,0x00,0x00,0x50,0x00,0x02,0x03,0xfc,0x01,0x05,
0x06,0x00,
0x98,0x5a,0xeb,0x89,0xba,0xaa,
0x01,0x00,
0xc0,0xa8,0x00,0x44,
0x00,0x00,
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
0x03,0xff,0x00,0x30,0x08,0x00,0x00,0x80,0x00,0x40,0x01,0x01,0x00,0x00,0x00,0x00,
0x00,0x00
};
unsigned bufByteN = sizeof(buf);
if((rc = socket::send( sockH, buf, bufByteN )) != kOkRC )
{
error(&app->mdns,"Send failed.");
}
return rc;
}
bool tcpReceiveCallback( void* arg )
{
mdns_app_t* p = static_cast<mdns_app_t*>(arg);
socket::handle_t sockH = p->tcpH;
char buf[ p->recvBufByteN ];
mdns_app_t* app = static_cast<mdns_app_t*>(arg);
socket::handle_t sockH = app->tcpH;
char buf[ app->recvBufByteN ];
unsigned readByteN = 0;
rc_t rc = kOkRC;
unsigned msg_idx = 0;
rc_t rc = kOkRC;
if( !socket::isConnected(sockH) )
{
if((rc = socket::accept( sockH )) == kOkRC )
{
log(&p->mdns,"TCP connected.\n");
log(&app->mdns,"TCP connected.\n");
}
}
else
{
if((rc = socket::recieve( sockH, buf, p->recvBufByteN, &readByteN, nullptr )) == kOkRC )
if((rc = socket::recieve( sockH, buf, app->recvBufByteN, &readByteN, nullptr )) == kOkRC )
{
printf("msg: %i\n",msg_idx++);
//print_hex(buf,readByteN);
if( readByteN > 0 )
{
send_response( app, sockH );
}
// if the server disconnects then recvBufByteN
if( isConnected( sockH ) )
{
log(&p->mdns,"TCP disconnected.");
log(&app->mdns,"TCP disconnected.");
}
else
{
printf("+");
fflush(stdout);
// handle recv'd TCP messages here.
send_response( app, sockH );
}
}
@ -971,6 +1009,7 @@ namespace cw
}
rc_t sendMsg1( mdns_app_t* p )
\
{
rc_t rc = kOkRC;
unsigned transId = 0;
@ -1034,9 +1073,11 @@ namespace cw
kInvalidRecdTId );
//print_hex(buf0,bufByteN);
//send( sockH, buf0, bufByteN, "224.0.0.251", 5353 );
send( sockH, buf0, bufByteN, "224.0.0.251", 5353 );
free(buf0);
sleepMs(500);
bufByteN = 0;
char* buf = alloc_msg( &bufByteN, transId, flags,