Diffstat (limited to 'core/apps/embeddedkonsole/MyPty.cpp') (more/less context) (ignore whitespace changes)
-rw-r--r-- | core/apps/embeddedkonsole/MyPty.cpp | 99 |
1 files changed, 50 insertions, 49 deletions
diff --git a/core/apps/embeddedkonsole/MyPty.cpp b/core/apps/embeddedkonsole/MyPty.cpp index 3622d48..6421ab0 100644 --- a/core/apps/embeddedkonsole/MyPty.cpp +++ b/core/apps/embeddedkonsole/MyPty.cpp @@ -1,39 +1,39 @@ /* -------------------------------------------------------------------------- */ /* */ /* [MyPty.C] Pseudo Terminal Device */ /* */ /* -------------------------------------------------------------------------- */ /* */ /* Copyright (c) 1997,1998 by Lars Doelle <lars.doelle@on-line.de> */ /* */ /* This file is part of Konsole - an X terminal for KDE */ /* -------------------------------------------------------------------------- */ -/* */ +/* */ /* Ported Konsole to Qt/Embedded */ -/* */ +/* */ /* Copyright (C) 2000 by John Ryland <jryland@trolltech.com> */ -/* */ +/* */ /* -------------------------------------------------------------------------- */ /* If you're compiling konsole on non-Linux platforms and find problems that you can track down to this file, please have a look into ../README.ports, too. */ /*! \file */ /*! \class TEPty \brief Ptys provide a pseudo terminal connection to a program. Although closely related to pipes, these pseudo terminal connections have some ability, that makes it nessesary to uses them. Most importent, they know about changing screen sizes and UNIX job control. Within the terminal emulation framework, this class represents the host side of the terminal together with the connecting serial line. One can create many instances of this class within a program. As a side effect of using this class, a signal(2) handler is installed on SIGCHLD. @@ -92,185 +92,186 @@ /*! 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); + 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 + // 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); - 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" ); + // child - exec shell on tty + for (int sig = 1; sig < NSIG; sig++) signal(sig,SIG_DFL); + 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 - ioctl(STDIN_FILENO, TIOCSCTTY, 0); + // grabbed from APUE by Stevens + 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 ); - 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)); - } - execl(cmd, cmd, 0); - - donePty(); - exit(-1); + tcgetattr( STDIN_FILENO, &ttmode ); + ttmode.c_cc[VINTR] = 3; + ttmode.c_cc[VERASE] = 8; + tcsetattr( STDIN_FILENO, TCSANOW, &ttmode ); + 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)); + } +; //creates a login shell + execl(cmd, cmd, "--login", 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; + ptyfd = -1; else - close(ttyfd); // we open the ttynam ourselves. + 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; - } - } - } + 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; + 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"); #endif - ::write(fd, s, len); + ::write(fd, s, len); } /*! indicates that a block of data is received */ void MyPty::readPty() { char buf[4096]; int len = ::read( fd, buf, 4096 ); if (len == -1) donePty(); if (len < 0) return; emit block_in(buf,len); #ifdef VERBOSE_DEBUG // verbose debug printf("read bytes:\n"); for (int i = 0; i < len; i++) printf("%c", buf[i]); printf("\n"); #endif |