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#if defined(WIN32)
#define WIN32_LEAN_AND_MEAN // Exclude rarely-used stuff from Windows headers
#include <windows.h>
#include <stdio.h>
#include <tchar.h>
const int nBuff = 1024;
extern "C" int DoSrv( char * pIn );
extern "C" int DoSrvMore( char * pOut, size_t nMax );
void PipeServer()
{
HANDLE hPipeToSrv;
HANDLE hPipeFromSrv;
static const TCHAR pipeNameToSrv[] = _T("\\\\.\\pipe\\ToSrvPipe");
hPipeToSrv = CreateNamedPipe(
pipeNameToSrv ,
PIPE_ACCESS_DUPLEX,
PIPE_TYPE_MESSAGE | PIPE_READMODE_MESSAGE | PIPE_WAIT | PIPE_REJECT_REMOTE_CLIENTS,
PIPE_UNLIMITED_INSTANCES,
nBuff,
nBuff,
50,//Timeout - always send straight away.
NULL);
if( hPipeToSrv == INVALID_HANDLE_VALUE)
return;
static const TCHAR pipeNameFromSrv[] = __T("\\\\.\\pipe\\FromSrvPipe");
hPipeFromSrv = CreateNamedPipe(
pipeNameFromSrv ,
PIPE_ACCESS_DUPLEX,
PIPE_TYPE_MESSAGE | PIPE_READMODE_MESSAGE | PIPE_WAIT | PIPE_REJECT_REMOTE_CLIENTS,
PIPE_UNLIMITED_INSTANCES,
nBuff,
nBuff,
50,//Timeout - always send straight away.
NULL);
if( hPipeFromSrv == INVALID_HANDLE_VALUE)
return;
BOOL bConnected;
BOOL bSuccess;
DWORD cbBytesRead;
DWORD cbBytesWritten;
CHAR chRequest[ nBuff ];
CHAR chResponse[ nBuff ];
int jj=0;
for(;;)
{
// open to (incoming) pipe first.
printf( "Obtaining pipe\n" );
bConnected = ConnectNamedPipe(hPipeToSrv, NULL) ?
TRUE : (GetLastError()==ERROR_PIPE_CONNECTED );
printf( "Obtained to-srv %i\n", bConnected );
// open from (outgoing) pipe second. This could block if there is no reader.
bConnected = ConnectNamedPipe(hPipeFromSrv, NULL) ?
TRUE : (GetLastError()==ERROR_PIPE_CONNECTED );
printf( "Obtained from-srv %i\n", bConnected );
if( bConnected )
{
for(;;)
{
printf( "About to read\n" );
bSuccess = ReadFile( hPipeToSrv, chRequest, nBuff, &cbBytesRead, NULL);
chRequest[ cbBytesRead] = '\0';
if( !bSuccess || cbBytesRead==0 )
break;
printf( "Rxd %s\n", chRequest );
DoSrv( chRequest );
jj++;
while( true )
{
int nWritten = DoSrvMore( chResponse, nBuff );
if( nWritten <= 1 )
break;
WriteFile( hPipeFromSrv, chResponse, nWritten-1, &cbBytesWritten, NULL);
}
//FlushFileBuffers( hPipeFromSrv );
}
FlushFileBuffers( hPipeToSrv );
DisconnectNamedPipe( hPipeToSrv );
FlushFileBuffers( hPipeFromSrv );
DisconnectNamedPipe( hPipeFromSrv );
break;
}
else
{
CloseHandle( hPipeToSrv );
CloseHandle( hPipeFromSrv );
}
}
CloseHandle( hPipeToSrv );
CloseHandle( hPipeFromSrv );
}
#else
#include <sys/types.h>
#include <sys/stat.h>
#include <stdio.h>
#include <unistd.h>
#include <string.h>
const char fifotmpl[] = "/tmp/audacity_script_pipe.%s.%d";
const int nBuff = 1024;
extern "C" int DoSrv( char * pIn );
extern "C" int DoSrvMore( char * pOut, size_t nMax );
void PipeServer()
{
FILE *fromFifo = NULL;
FILE *toFifo = NULL;
int rc;
char buf[nBuff];
char toFifoName[nBuff];
char fromFifoName[nBuff];
sprintf(toFifoName, fifotmpl, "to", getuid());
sprintf(fromFifoName, fifotmpl, "from", getuid());
unlink(toFifoName);
unlink(fromFifoName);
// TODO avoid symlink security issues?
rc = mkfifo(fromFifoName, S_IRWXU) & mkfifo(toFifoName, S_IRWXU);
if (rc < 0)
{
perror("Unable to create fifos");
printf("Ignoring...");
// return;
}
// open to (incoming) pipe first.
toFifo = fopen(toFifoName, "r");
if (toFifo == NULL)
{
perror("Unable to open fifo to server from script");
if (fromFifo != NULL)
fclose(fromFifo);
return;
}
// open from (outgoing) pipe second. This could block if there is no reader.
fromFifo = fopen(fromFifoName, "w");
if (fromFifo == NULL)
{
perror("Unable to open fifo from server to script");
fclose(toFifo);
return;
}
while (fgets(buf, sizeof(buf), toFifo) != NULL)
{
int len = strlen(buf);
if (len <= 1)
{
continue;
}
buf[len - 1] = '\0';
printf("Server received %s\n", buf);
DoSrv(buf);
while (true)
{
len = DoSrvMore(buf, nBuff);
if (len <= 1)
{
break;
}
printf("Server sending %s",buf);
// len - 1 because we do not send the null character
fwrite(buf, 1, len - 1, fromFifo);
}
fflush(fromFifo);
}
printf("Read failed on fifo, quitting\n");
if (toFifo != NULL)
fclose(toFifo);
if (fromFifo != NULL)
fclose(fromFifo);
unlink(toFifoName);
unlink(fromFifoName);
}
#endif
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