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-rw-r--r--core/apps/embeddedkonsole/MyPty.cpp2
1 files changed, 1 insertions, 1 deletions
diff --git a/core/apps/embeddedkonsole/MyPty.cpp b/core/apps/embeddedkonsole/MyPty.cpp
index 4b1ae59..c11889e 100644
--- a/core/apps/embeddedkonsole/MyPty.cpp
+++ b/core/apps/embeddedkonsole/MyPty.cpp
@@ -68,193 +68,193 @@
#include <qapplication.h>
#include <qsocketnotifier.h>
#include <stdlib.h>
#include <stdio.h>
#include <signal.h>
#include <fcntl.h>
#include <unistd.h>
#include <termios.h>
#include <sys/types.h>
#include <sys/ioctl.h>
#include <sys/wait.h>
#ifdef HAVE_OPENPTY
#include <pty.h>
#endif
#include "MyPty.h"
#undef VERBOSE_DEBUG
/* -------------------------------------------------------------------------- */
/*!
Informs the client program about the
actual size of the window.
*/
void MyPty::setSize(int lines, int columns)
{
struct winsize wsize;
wsize.ws_row = (unsigned short)lines;
wsize.ws_col = (unsigned short)columns;
if(fd < 0) return;
ioctl(fd,TIOCSWINSZ,(char *)&wsize);
}
void MyPty::donePty()
{
// This is code from the Qt DumbTerminal example
int status = 0;
::close(fd);
if (cpid) {
kill(cpid, SIGHUP);
waitpid(cpid, &status, 0);
}
emit done(status);
}
const char* MyPty::deviceName()
{
return ttynam;
}
void MyPty::error()
{
// This is code from the Qt DumbTerminal example
donePty();
}
/*!
start the client program.
*/
int MyPty::run(const char* cmd, QStrList &, const char*, int)
{
// This is code from the Qt DumbTerminal example
cpid = fork();
if ( !cpid ) {
// child - exec shell on tty
for (int sig = 1; sig < NSIG; sig++) signal(sig,SIG_DFL);
// attempt to keep apm driver from killing us on power on/off
signal(SIGSTOP, SIG_IGN);
signal(SIGCONT, SIG_IGN);
signal(SIGTSTP, SIG_IGN);
int ttyfd = open(ttynam, O_RDWR);
dup2(ttyfd, STDIN_FILENO);
dup2(ttyfd, STDOUT_FILENO);
dup2(ttyfd, STDERR_FILENO);
// should be done with tty, so close it
close(ttyfd);
static struct termios ttmode;
if ( setsid() < 0 )
perror( "failed to set process group" );
#if defined (TIOCSCTTY)
- // grabbed from APUE by Stevens
+ // grabbed from APUE by Stevens (see section 9.6, should be page 246)
ioctl(STDIN_FILENO, TIOCSCTTY, 0);
#endif
tcgetattr( STDIN_FILENO, &ttmode );
ttmode.c_cc[VINTR] = 3;
ttmode.c_cc[VERASE] = 8;
tcsetattr( STDIN_FILENO, TCSANOW, &ttmode );
if(strlen(getenv("TERM"))<=0)
setenv("TERM","vt100",1);
setenv("COLORTERM","0",1);
if (getuid() == 0) {
char msg[] = "WARNING: You are running this shell as root!\n";
write(ttyfd, msg, sizeof(msg));
}
QString ccmd = "-"+QFileInfo(cmd).fileName(); //creates a login shell
execl(cmd, ccmd.latin1(), 0);
donePty();
exit(-1);
}
// parent - continue as a widget
QSocketNotifier* sn_r = new QSocketNotifier(fd,QSocketNotifier::Read,this);
QSocketNotifier* sn_e = new QSocketNotifier(fd,QSocketNotifier::Exception,this);
connect(sn_r,SIGNAL(activated(int)),this,SLOT(readPty()));
connect(sn_e,SIGNAL(activated(int)),this,SLOT(error()));
return 0;
}
int MyPty::openPty()
{
// This is code from the Qt DumbTerminal example
int ptyfd = -1;
#ifdef HAVE_OPENPTY
int ttyfd;
if ( openpty(&ptyfd,&ttyfd,ttynam,0,0) )
ptyfd = -1;
else
close(ttyfd); // we open the ttynam ourselves.
#else
for (const char* c0 = "pqrstuvwxyzabcde"; ptyfd < 0 && *c0 != 0; c0++) {
for (const char* c1 = "0123456789abcdef"; ptyfd < 0 && *c1 != 0; c1++) {
sprintf(ptynam,"/dev/pty%c%c",*c0,*c1);
sprintf(ttynam,"/dev/tty%c%c",*c0,*c1);
if ((ptyfd = ::open(ptynam,O_RDWR)) >= 0) {
if (geteuid() != 0 && !access(ttynam,R_OK|W_OK) == 0) {
::close(ptyfd);
ptyfd = -1;
}
}
}
}
#endif
if ( ptyfd < 0 ) {
qApp->exit(1);
return -1;
}
return ptyfd;
}
/*!
Create an instance.
*/
MyPty::MyPty() : cpid(0)
{
fd = openPty();
}
/*!
Destructor.
Note that the related client program is not killed
(yet) when a instance is deleted.
*/
MyPty::~MyPty()
{
donePty();
}
/*! sends len bytes through the line */
void MyPty::send_bytes(const char* s, int len)
{
#ifdef VERBOSE_DEBUG
// verbose debug
printf("sending bytes:\n");
for (int i = 0; i < len; i++)
printf("%c", s[i]);
printf("\n");