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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 ]; char addrBuf[ INET_ADDRSTRLEN ];
socket::addrToString( fromAddr, addrBuf, INET_ADDRSTRLEN ); socket::addrToString( fromAddr, addrBuf, INET_ADDRSTRLEN );
p->cbN += 1; p->cbN += 1;
if( true ) if( false )
{ {
printf("%i bytes:%i %s\n", p->cbN, dataByteCnt, addrBuf ); printf("%i bytes:%i %s\n", p->cbN, dataByteCnt, addrBuf );
print_hex( (const char*)data, dataByteCnt ); 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 ) bool tcpReceiveCallback( void* arg )
{ {
mdns_app_t* p = static_cast<mdns_app_t*>(arg); mdns_app_t* app = static_cast<mdns_app_t*>(arg);
socket::handle_t sockH = p->tcpH; socket::handle_t sockH = app->tcpH;
char buf[ p->recvBufByteN ]; char buf[ app->recvBufByteN ];
unsigned readByteN = 0; unsigned readByteN = 0;
unsigned msg_idx = 0;
rc_t rc = kOkRC; rc_t rc = kOkRC;
if( !socket::isConnected(sockH) ) if( !socket::isConnected(sockH) )
{ {
if((rc = socket::accept( sockH )) == kOkRC ) if((rc = socket::accept( sockH )) == kOkRC )
{ {
log(&p->mdns,"TCP connected.\n"); log(&app->mdns,"TCP connected.\n");
} }
} }
else 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 the server disconnects then recvBufByteN
if( isConnected( sockH ) ) if( isConnected( sockH ) )
{ {
log(&p->mdns,"TCP disconnected."); log(&app->mdns,"TCP disconnected.");
} }
else else
{ {
printf("+");
fflush(stdout);
// handle recv'd TCP messages here. // 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 sendMsg1( mdns_app_t* p )
\
{ {
rc_t rc = kOkRC; rc_t rc = kOkRC;
unsigned transId = 0; unsigned transId = 0;
@ -1034,9 +1073,11 @@ namespace cw
kInvalidRecdTId ); kInvalidRecdTId );
//print_hex(buf0,bufByteN); //print_hex(buf0,bufByteN);
//send( sockH, buf0, bufByteN, "224.0.0.251", 5353 ); send( sockH, buf0, bufByteN, "224.0.0.251", 5353 );
free(buf0); free(buf0);
sleepMs(500);
bufByteN = 0; bufByteN = 0;
char* buf = alloc_msg( &bufByteN, transId, flags, char* buf = alloc_msg( &bufByteN, transId, flags,