diff options
Diffstat (limited to 'client/browser/qtermwidget/src/kpty.cpp')
| -rw-r--r-- | client/browser/qtermwidget/src/kpty.cpp | 624 |
1 files changed, 0 insertions, 624 deletions
diff --git a/client/browser/qtermwidget/src/kpty.cpp b/client/browser/qtermwidget/src/kpty.cpp deleted file mode 100644 index 953b9565..00000000 --- a/client/browser/qtermwidget/src/kpty.cpp +++ /dev/null @@ -1,624 +0,0 @@ -/* - - This file is part of the KDE libraries - Copyright (C) 2002 Waldo Bastian <bastian@kde.org> - Copyright (C) 2002-2003,2007 Oswald Buddenhagen <ossi@kde.org> - - Rewritten for QT4 by e_k <e_k at users.sourceforge.net>, Copyright (C)2008 - - This library is free software; you can redistribute it and/or - modify it under the terms of the GNU Library General Public - License as published by the Free Software Foundation; either - version 2 of the License, or (at your option) any later version. - - This library is distributed in the hope that it will be useful, - but WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - Library General Public License for more details. - - You should have received a copy of the GNU Library General Public License - along with this library; see the file COPYING.LIB. If not, write to - the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, - Boston, MA 02110-1301, USA. -*/ - -#include "kpty_p.h" - -#ifdef __sgi -#define __svr4__ -#endif - -#ifdef __osf__ -#define _OSF_SOURCE -#include <float.h> -#endif - -#ifdef _AIX -#define _ALL_SOURCE -#endif - -// __USE_XOPEN isn't defined by default in ICC -// (needed for ptsname(), grantpt() and unlockpt()) -#ifdef __INTEL_COMPILER -# ifndef __USE_XOPEN -# define __USE_XOPEN -# endif -#endif - -#include <sys/types.h> -#include <sys/ioctl.h> -#include <sys/time.h> -#include <sys/resource.h> -#include <sys/stat.h> -#include <sys/param.h> - -#include <errno.h> -#include <fcntl.h> -#include <time.h> -#include <stdlib.h> -#include <stdio.h> -#include <string.h> -#include <unistd.h> -#include <grp.h> - -#if defined(HAVE_PTY_H) -# include <pty.h> -#endif - -#ifdef HAVE_LIBUTIL_H -# include <libutil.h> -#elif defined(HAVE_UTIL_H) -# include <util.h> -#endif - -#ifdef HAVE_UTEMPTER -extern "C" { -# include <utempter.h> -} -#else -# include <utmp.h> -# ifdef HAVE_UTMPX -# include <utmpx.h> -# endif -# if !defined(_PATH_UTMPX) && defined(_UTMPX_FILE) -# define _PATH_UTMPX _UTMPX_FILE -# endif -# if !defined(_PATH_WTMPX) && defined(_WTMPX_FILE) -# define _PATH_WTMPX _WTMPX_FILE -# endif -#endif - -/* for HP-UX (some versions) the extern C is needed, and for other - platforms it doesn't hurt */ -extern "C" { -#include <termios.h> -#if defined(HAVE_TERMIO_H) -# include <termio.h> // struct winsize on some systems -#endif -} - -#if defined (_HPUX_SOURCE) -# define _TERMIOS_INCLUDED -# include <bsdtty.h> -#endif - -#ifdef HAVE_SYS_STROPTS_H -# include <sys/stropts.h> // Defines I_PUSH -# define _NEW_TTY_CTRL -#endif - -#if defined (__FreeBSD__) || defined (__NetBSD__) || defined (__OpenBSD__) || defined (__bsdi__) || defined(__APPLE__) || defined (__DragonFly__) -# define _tcgetattr(fd, ttmode) ioctl(fd, TIOCGETA, (char *)ttmode) -#else -# if defined(_HPUX_SOURCE) || defined(__Lynx__) || defined (__CYGWIN__) -# define _tcgetattr(fd, ttmode) tcgetattr(fd, ttmode) -# else -# define _tcgetattr(fd, ttmode) ioctl(fd, TCGETS, (char *)ttmode) -# endif -#endif - -#if defined (__FreeBSD__) || defined (__NetBSD__) || defined (__OpenBSD__) || defined (__bsdi__) || defined(__APPLE__) || defined (__DragonFly__) -# define _tcsetattr(fd, ttmode) ioctl(fd, TIOCSETA, (char *)ttmode) -#else -# if defined(_HPUX_SOURCE) || defined(__CYGWIN__) -# define _tcsetattr(fd, ttmode) tcsetattr(fd, TCSANOW, ttmode) -# else -# define _tcsetattr(fd, ttmode) ioctl(fd, TCSETS, (char *)ttmode) -# endif -#endif - -//#include <kdebug.h> -//#include <kstandarddirs.h> // findExe - -#include <QtCore> - -// not defined on HP-UX for example -#ifndef CTRL -# define CTRL(x) ((x) & 037) -#endif - -#define TTY_GROUP "tty" - -/////////////////////// -// private functions // -/////////////////////// - -////////////////// -// private data // -////////////////// - -KPtyPrivate::KPtyPrivate() : - masterFd(-1), slaveFd(-1) -{ -} - -bool KPtyPrivate::chownpty(bool) -{ -// return !QProcess::execute(KStandardDirs::findExe("kgrantpty"), -// QStringList() << (grant?"--grant":"--revoke") << QString::number(masterFd)); - return true; -} - -///////////////////////////// -// public member functions // -///////////////////////////// - -KPty::KPty() : - d_ptr(new KPtyPrivate) -{ - d_ptr->q_ptr = this; -} - -KPty::KPty(KPtyPrivate *d) : - d_ptr(d) -{ - d_ptr->q_ptr = this; -} - -KPty::~KPty() -{ - close(); - delete d_ptr; -} - -bool KPty::open() -{ - Q_D(KPty); - - if (d->masterFd >= 0) - return true; - - QByteArray ptyName; - - // Find a master pty that we can open //////////////////////////////// - - // Because not all the pty animals are created equal, they want to - // be opened by several different methods. - - // We try, as we know them, one by one. - -#ifdef HAVE_OPENPTY - - char ptsn[PATH_MAX]; - if (::openpty( &d->masterFd, &d->slaveFd, ptsn, 0, 0)) - { - d->masterFd = -1; - d->slaveFd = -1; - kWarning(175) << "Can't open a pseudo teletype"; - return false; - } - d->ttyName = ptsn; - -#else - -#ifdef HAVE__GETPTY // irix - - char *ptsn = _getpty(&d->masterFd, O_RDWR|O_NOCTTY, S_IRUSR|S_IWUSR, 0); - if (ptsn) { - d->ttyName = ptsn; - goto grantedpt; - } - -#elif defined(HAVE_PTSNAME) || defined(TIOCGPTN) - -#ifdef HAVE_POSIX_OPENPT - d->masterFd = ::posix_openpt(O_RDWR|O_NOCTTY); -#elif defined(HAVE_GETPT) - d->masterFd = ::getpt(); -#elif defined(PTM_DEVICE) - d->masterFd = ::open(PTM_DEVICE, O_RDWR|O_NOCTTY); -#else -# error No method to open a PTY master detected. -#endif - - if (d->masterFd >= 0) - { - -#ifdef HAVE_PTSNAME - char *ptsn = ptsname(d->masterFd); - if (ptsn) { - d->ttyName = ptsn; -#else - int ptyno; - if (!ioctl(d->masterFd, TIOCGPTN, &ptyno)) { - d->ttyName = QByteArray("/dev/pts/") + QByteArray::number(ptyno); -#endif -#ifdef HAVE_GRANTPT - if (!grantpt(d->masterFd)) - goto grantedpt; -#else - - goto gotpty; -#endif - } - ::close(d->masterFd); - d->masterFd = -1; - } -#endif // HAVE_PTSNAME || TIOCGPTN - - // Linux device names, FIXME: Trouble on other systems? - for (const char* s3 = "pqrstuvwxyzabcde"; *s3; s3++) - { - for (const char* s4 = "0123456789abcdef"; *s4; s4++) - { - ptyName = QString().sprintf("/dev/pty%c%c", *s3, *s4).toAscii(); - d->ttyName = QString().sprintf("/dev/tty%c%c", *s3, *s4).toAscii(); - - d->masterFd = ::open(ptyName.data(), O_RDWR); - if (d->masterFd >= 0) - { -#ifdef Q_OS_SOLARIS - /* Need to check the process group of the pty. - * If it exists, then the slave pty is in use, - * and we need to get another one. - */ - int pgrp_rtn; - if (ioctl(d->masterFd, TIOCGPGRP, &pgrp_rtn) == 0 || errno != EIO) { - ::close(d->masterFd); - d->masterFd = -1; - continue; - } -#endif /* Q_OS_SOLARIS */ - if (!access(d->ttyName.data(),R_OK|W_OK)) // checks availability based on permission bits - { - if (!geteuid()) - { - struct group* p = getgrnam(TTY_GROUP); - if (!p) - p = getgrnam("wheel"); - gid_t gid = p ? p->gr_gid : getgid (); - - chown(d->ttyName.data(), getuid(), gid); - chmod(d->ttyName.data(), S_IRUSR|S_IWUSR|S_IWGRP); - } - goto gotpty; - } - ::close(d->masterFd); - d->masterFd = -1; - } - } - } - - qWarning() << "Can't open a pseudo teletype"; - return false; - - gotpty: - struct stat st; - if (stat(d->ttyName.data(), &st)) { - return false; // this just cannot happen ... *cough* Yeah right, I just - // had it happen when pty #349 was allocated. I guess - // there was some sort of leak? I only had a few open. - } - if (((st.st_uid != getuid()) || - (st.st_mode & (S_IRGRP|S_IXGRP|S_IROTH|S_IWOTH|S_IXOTH))) && - !d->chownpty(true)) - { - qWarning() - << "chownpty failed for device " << ptyName << "::" << d->ttyName - << "\nThis means the communication can be eavesdropped." << endl; - } - -#if defined (HAVE__GETPTY) || defined (HAVE_GRANTPT) - grantedpt: -#endif - -#ifdef HAVE_REVOKE - revoke(d->ttyName.data()); -#endif - -#ifdef HAVE_UNLOCKPT - unlockpt(d->masterFd); -#elif defined(TIOCSPTLCK) - int flag = 0; - ioctl(d->masterFd, TIOCSPTLCK, &flag); -#endif - - d->slaveFd = ::open(d->ttyName.data(), O_RDWR | O_NOCTTY); - if (d->slaveFd < 0) - { - qWarning() << "Can't open slave pseudo teletype"; - ::close(d->masterFd); - d->masterFd = -1; - return false; - } - -#if (defined(__svr4__) || defined(__sgi__)) - // Solaris - ioctl(d->slaveFd, I_PUSH, "ptem"); - ioctl(d->slaveFd, I_PUSH, "ldterm"); -#endif - -#endif /* HAVE_OPENPTY */ - - fcntl(d->masterFd, F_SETFD, FD_CLOEXEC); - fcntl(d->slaveFd, F_SETFD, FD_CLOEXEC); - - return true; -} - -void KPty::closeSlave() -{ - Q_D(KPty); - - if (d->slaveFd < 0) - return; - ::close(d->slaveFd); - d->slaveFd = -1; -} - -void KPty::close() -{ - Q_D(KPty); - - if (d->masterFd < 0) - return; - closeSlave(); - // don't bother resetting unix98 pty, it will go away after closing master anyway. - if (memcmp(d->ttyName.data(), "/dev/pts/", 9)) { - if (!geteuid()) { - struct stat st; - if (!stat(d->ttyName.data(), &st)) { - chown(d->ttyName.data(), 0, st.st_gid == getgid() ? 0 : -1); - chmod(d->ttyName.data(), S_IRUSR|S_IWUSR|S_IRGRP|S_IWGRP|S_IROTH|S_IWOTH); - } - } else { - fcntl(d->masterFd, F_SETFD, 0); - d->chownpty(false); - } - } - ::close(d->masterFd); - d->masterFd = -1; -} - -void KPty::setCTty() -{ - Q_D(KPty); - - // Setup job control ////////////////////////////////// - - // Become session leader, process group leader, - // and get rid of the old controlling terminal. - setsid(); - - // make our slave pty the new controlling terminal. -#ifdef TIOCSCTTY - ioctl(d->slaveFd, TIOCSCTTY, 0); -#else - // __svr4__ hack: the first tty opened after setsid() becomes controlling tty - ::close(::open(d->ttyName, O_WRONLY, 0)); -#endif - - // make our new process group the foreground group on the pty - int pgrp = getpid(); -#if defined(_POSIX_VERSION) || defined(__svr4__) - tcsetpgrp(d->slaveFd, pgrp); -#elif defined(TIOCSPGRP) - ioctl(d->slaveFd, TIOCSPGRP, (char *)&pgrp); -#endif -} - -void KPty::login(const char *user, const char *remotehost) -{ -#ifdef HAVE_UTEMPTER - Q_D(KPty); - - addToUtmp(d->ttyName, remotehost, d->masterFd); - Q_UNUSED(user); -#else -# ifdef HAVE_UTMPX - struct utmpx l_struct; -# else - struct utmp l_struct; -# endif - memset(&l_struct, 0, sizeof(l_struct)); - // note: strncpy without terminators _is_ correct here. man 4 utmp - - if (user) - strncpy(l_struct.ut_name, user, sizeof(l_struct.ut_name)); - - if (remotehost) { - strncpy(l_struct.ut_host, remotehost, sizeof(l_struct.ut_host)); -# ifdef HAVE_STRUCT_UTMP_UT_SYSLEN - l_struct.ut_syslen = qMin(strlen(remotehost), sizeof(l_struct.ut_host)); -# endif - } - -# ifndef __GLIBC__ - Q_D(KPty); - const char *str_ptr = d->ttyName.data(); - if (!memcmp(str_ptr, "/dev/", 5)) - str_ptr += 5; - strncpy(l_struct.ut_line, str_ptr, sizeof(l_struct.ut_line)); -# ifdef HAVE_STRUCT_UTMP_UT_ID - strncpy(l_struct.ut_id, - str_ptr + strlen(str_ptr) - sizeof(l_struct.ut_id), - sizeof(l_struct.ut_id)); -# endif -# endif - -# ifdef HAVE_UTMPX - gettimeofday(&l_struct.ut_tv, 0); -# else - l_struct.ut_time = time(0); -# endif - -# ifdef HAVE_LOGIN -# ifdef HAVE_LOGINX - ::loginx(&l_struct); -# else - ::login(&l_struct); -# endif -# else -# ifdef HAVE_STRUCT_UTMP_UT_TYPE - l_struct.ut_type = USER_PROCESS; -# endif -# ifdef HAVE_STRUCT_UTMP_UT_PID - l_struct.ut_pid = getpid(); -# ifdef HAVE_STRUCT_UTMP_UT_SESSION - l_struct.ut_session = getsid(0); -# endif -# endif -# ifdef HAVE_UTMPX - utmpxname(_PATH_UTMPX); - setutxent(); - pututxline(&l_struct); - endutxent(); - updwtmpx(_PATH_WTMPX, &l_struct); -# else - utmpname(_PATH_UTMP); - setutent(); - pututline(&l_struct); - endutent(); - updwtmp(_PATH_WTMP, &l_struct); -# endif -# endif -#endif -} - -void KPty::logout() -{ -#ifdef HAVE_UTEMPTER - Q_D(KPty); - - removeLineFromUtmp(d->ttyName, d->masterFd); -#else - Q_D(KPty); - - const char *str_ptr = d->ttyName.data(); - if (!memcmp(str_ptr, "/dev/", 5)) - str_ptr += 5; -# ifdef __GLIBC__ - else { - const char *sl_ptr = strrchr(str_ptr, '/'); - if (sl_ptr) - str_ptr = sl_ptr + 1; - } -# endif -# ifdef HAVE_LOGIN -# ifdef HAVE_LOGINX - ::logoutx(str_ptr, 0, DEAD_PROCESS); -# else - ::logout(str_ptr); -# endif -# else -# ifdef HAVE_UTMPX - struct utmpx l_struct, *ut; -# else - struct utmp l_struct, *ut; -# endif - memset(&l_struct, 0, sizeof(l_struct)); - - strncpy(l_struct.ut_line, str_ptr, sizeof(l_struct.ut_line)); - -# ifdef HAVE_UTMPX - utmpxname(_PATH_UTMPX); - setutxent(); - if ((ut = getutxline(&l_struct))) { -# else - utmpname(_PATH_UTMP); - setutent(); - if ((ut = getutline(&l_struct))) { -# endif - memset(ut->ut_name, 0, sizeof(*ut->ut_name)); - memset(ut->ut_host, 0, sizeof(*ut->ut_host)); -# ifdef HAVE_STRUCT_UTMP_UT_SYSLEN - ut->ut_syslen = 0; -# endif -# ifdef HAVE_STRUCT_UTMP_UT_TYPE - ut->ut_type = DEAD_PROCESS; -# endif -# ifdef HAVE_UTMPX - gettimeofday(ut->ut_tv, 0); - pututxline(ut); - } - endutxent(); -# else - ut->ut_time = time(0); - pututline(ut); - } - endutent(); -# endif -# endif -#endif -} - -// XXX Supposedly, tc[gs]etattr do not work with the master on Solaris. -// Please verify. - -bool KPty::tcGetAttr(struct ::termios *ttmode) const -{ - Q_D(const KPty); - - return _tcgetattr(d->masterFd, ttmode) == 0; -} - -bool KPty::tcSetAttr(struct ::termios *ttmode) -{ - Q_D(KPty); - - return _tcsetattr(d->masterFd, ttmode) == 0; -} - -bool KPty::setWinSize(int lines, int columns) -{ - Q_D(KPty); - - struct winsize winSize; - memset(&winSize, 0, sizeof(winSize)); - winSize.ws_row = (unsigned short)lines; - winSize.ws_col = (unsigned short)columns; - return ioctl(d->masterFd, TIOCSWINSZ, (char *)&winSize) == 0; -} - -bool KPty::setEcho(bool echo) -{ - struct ::termios ttmode; - if (!tcGetAttr(&ttmode)) - return false; - if (!echo) - ttmode.c_lflag &= ~ECHO; - else - ttmode.c_lflag |= ECHO; - return tcSetAttr(&ttmode); -} - -const char *KPty::ttyName() const -{ - Q_D(const KPty); - - return d->ttyName.data(); -} - -int KPty::masterFd() const -{ - Q_D(const KPty); - - return d->masterFd; -} - -int KPty::slaveFd() const -{ - Q_D(const KPty); - - return d->slaveFd; -} |