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#include <stdio.h>
#include <stdlib.h>
#include <errno.h>
#include <fcntl.h>
#include <unistd.h>
#include <qsocketnotifier.h>
#include "procctl.h"
#include "filetransfer.h"
FileTransfer::FileTransfer( Type t, IOLayer* lay )
: FileTransferLayer( lay ), m_type( t ), m_pid ( 0 ) {
signal(SIGPIPE, SIG_IGN );
m_pid = 0;
m_not = 0l;
m_proc = 0l;
}
FileTransfer::~FileTransfer() {
}
/**
* now we will send the file.
*
* we request an fd. The IOLayer should be closed
* then we will setup a pipe for progress communication
* then we will dup2 the m_fd in the forked process
* to do direct IO from and to the fd
*/
void FileTransfer::sendFile( const QString& file ) {
m_prog =-1;
m_fd = layer()->rawIO();
//
// m_fd = ::open("/dev/ttyS0", O_RDWR);
m_file = file;
if ( pipe( m_comm ) < 0 )
m_comm[0] = m_comm[1] = 0;
if ( pipe( m_info ) < 0 )
m_info[0] = m_info[1] = 0;
m_pid = fork();
switch( m_pid ) {
case -1:
emit error( StartError, tr("Was not able to fork") );
slotExec();
break;
case 0:{
setupChild();
/* exec */
char* verbose = "-vv";
char* binray = "-b";
char* typus;
switch(m_type ) {
default:
case SZ:
typus = "";
break;
case SX:
typus = "-X";
break;
case SY:
typus = "--ymodem";
break;
}
/* we should never return from here */
execlp("sz", "sz", verbose, binray, file.latin1(), typus, NULL );
/* communication for error!*/
char resultByte =1;
if (m_info[1] )
write(m_info[1], &resultByte, 1 );
_exit( -1 );
break;
}
default:{
if ( m_info[1] )
close( m_info[1] );
if ( m_info[0] ) for (;;) {
char resultByte; int len;
len = read(m_info[0], &resultByte, 1 );
/* len == 1 start up failed */
if ( len == 1 ) {
emit error( StartError, tr("Could not start") );
return;
}
if ( len == -1 )
if ( (errno == ECHILD ) || (errno == EINTR ) )
continue;
// len == 0 or something like this
break;
}
if ( m_info[0] )
close( m_info[0] );
/* replace by QSocketNotifier!!! */
m_not = new QSocketNotifier(m_comm[0], QSocketNotifier::Read );
connect(m_not, SIGNAL(activated(int) ),
this, SLOT(slotRead() ) );
if ( pipe(m_term) < 0 )
m_term[0] = m_term[1] = 0;
ProcCtl::self()->add(m_pid, m_term[1] );
m_proc = new QSocketNotifier(m_term[0], QSocketNotifier::Read );
connect(m_proc, SIGNAL(activated(int) ),
this, SLOT(slotExec() ) );
}
break;
}
}
/*
* let's call the one with the filename
*/
void FileTransfer::sendFile( const QFile& file ) {
sendFile( file.name() );
}
/*
* setting up communication
* between parent child and ioLayer
*/
void FileTransfer::setupChild() {
/*
* we do not want to read from our
* information channel
*/
if (m_info[0] )
close(m_info[0] );
/*
* FD_CLOEXEC will close the
* fd on successful exec
*/
if (m_info[1] )
fcntl(m_info[1], F_SETFD, FD_CLOEXEC );
if (m_comm[0] )
close( m_comm[0] );
/*
* now set the communication
* m_fd STDIN_FILENO
* STDOUT_FILENO
* STDERR_FILENO
*/
dup2( m_fd, STDIN_FILENO );
dup2( m_fd, STDOUT_FILENO );
dup2( m_comm[1], STDERR_FILENO );
}
/*
* read from the stderr of the child
* process
*/
void FileTransfer::slotRead() {
QByteArray ar(4096);
int len = read(m_comm[0], ar.data(), 4096 );
for (int i = 0; i < len; i++ ) {
// printf("%c", ar[i] );
}
ar.resize( len );
QString str( ar );
QStringList lis = QStringList::split(' ', str );
/*
* Transfer finished.. either complete or incomplete
*/
if ( lis[0].simplifyWhiteSpace() == "Transfer" ) {
return;
}
/*
* do progress reading
*/
slotProgress( lis );
}
/*
* find the progress
*/
void FileTransfer::slotProgress( const QStringList& list ) {
if ( m_type != SZ )
return;
bool complete = true;
int min, sec;
int bps;
unsigned long sent, total;
min = sec = bps = -1;
sent = total = 0;
// Data looks like this
// 0 1 2 3 4 5
// Bytes Sent 65536/11534336 BPS:7784 ETA 24:33
QStringList progi = QStringList::split('/', list[2].simplifyWhiteSpace() );
sent = progi[0].toULong(&complete );
if (!complete ) return;
total = progi[1].toULong(&complete );
if (!complete || total == 0) {
return;
}
double pro = (double)sent/total;
int prog = pro * 100;
// speed
progi = QStringList::split(':', list[3].simplifyWhiteSpace() );
bps = progi[1].toInt();
// time
progi = QStringList::split(':', list[5].simplifyWhiteSpace() );
min = progi[0].toInt();
sec = progi[1].toInt();
if ( prog > m_prog ) {
m_prog = prog;
emit progress(m_file, m_prog, bps, -1, min , sec );
}
}
void FileTransfer::cancel() {
if(m_pid > 0) ::kill(m_pid,9 );
}
void FileTransfer::slotExec() {
char buf[2];
::read(m_term[0], buf, 1 );
delete m_proc;
delete m_not;
m_proc = m_not = 0l;
close( m_term[0] );
close( m_term[1] );
close( m_comm[0] );
close( m_comm[1] );
layer()->closeRawIO( m_fd );
emit sent();
m_pid = 0;
}
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