diff options
Diffstat (limited to 'kdecore/kpty.cpp')
| -rw-r--r-- | kdecore/kpty.cpp | 192 |
1 files changed, 114 insertions, 78 deletions
diff --git a/kdecore/kpty.cpp b/kdecore/kpty.cpp index 27cc3c51b..af83e9eab 100644 --- a/kdecore/kpty.cpp +++ b/kdecore/kpty.cpp @@ -95,24 +95,24 @@ extern "C" { # endif #endif -#if defined (__FreeBSD__) || defined (__NetBSD__) || defined (__OpenBSD__) || defined (__bsdi__) || defined(__APPLE__) || defined (__DragonFly__) +#if defined(HAVE_TCGETATTR) +# define _tcgetattr(fd, ttmode) tcgetattr(fd, ttmode) +#elif defined(TIOCGETA) # define _tcgetattr(fd, ttmode) ioctl(fd, TIOCGETA, (char *)ttmode) +#elif defined(TCGETS) +# define _tcgetattr(fd, ttmode) ioctl(fd, TCGETS, (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 +# error #endif -#if defined (__FreeBSD__) || defined (__NetBSD__) || defined (__OpenBSD__) || defined (__bsdi__) || defined(__APPLE__) || defined (__DragonFly__) +#if defined(HAVE_TCSETATTR) && defined(TCSANOW) +# define _tcsetattr(fd, ttmode) tcsetattr(fd, TCSANOW, ttmode) +#elif defined(TIOCSETA) # define _tcsetattr(fd, ttmode) ioctl(fd, TIOCSETA, (char *)ttmode) +#elif defined(TCSETS) +# define _tcsetattr(fd, ttmode) ioctl(fd, TCSETS, (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 +# error #endif #if defined (_HPUX_SOURCE) @@ -201,87 +201,37 @@ KPty::~KPty() delete d; } -bool KPty::open() +bool KPty::setPty(int pty_master) { - if (d->masterFd >= 0) - return true; + kdWarning(175) + << "setPty()" << endl; + // a pty is already open + if(d->masterFd >= 0) { + kdWarning(175) + << "d->masterFd >= 0" << endl; + return false; + } + d->masterFd = pty_master; + return _attachPty(pty_master); +} +bool KPty::_attachPty(int pty_master) +{ QCString 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. - + kdWarning(175) + << "_attachPty() " << pty_master << endl; #if defined(HAVE_PTSNAME) && defined(HAVE_GRANTPT) -#ifdef _AIX - d->masterFd = ::open("/dev/ptc",O_RDWR); -#else - d->masterFd = ::open("/dev/ptmx",O_RDWR); -#endif - if (d->masterFd >= 0) - { char *ptsn = ptsname(d->masterFd); if (ptsn) { grantpt(d->masterFd); d->ttyName = ptsn; - goto gotpty; } else { ::close(d->masterFd); d->masterFd = -1; } - } #endif - // Linux device names, FIXME: Trouble on other systems? - for (const char* s3 = "pqrstuvwxyzabcdefghijklmno"; *s3; s3++) - { - for (const char* s4 = "0123456789abcdefghijklmnopqrstuvwxyz"; *s4; s4++) - { - ptyName.sprintf("/dev/pty%c%c", *s3, *s4); - d->ttyName.sprintf("/dev/tty%c%c", *s3, *s4); - - d->masterFd = ::open(ptyName.data(), O_RDWR); - if (d->masterFd >= 0) - { -#ifdef __sun - /* 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 /* sun */ - 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; - } - } - } - - kdWarning(175) << "Can't open a pseudo teletype" << endl; - return false; - - gotpty: struct stat st; if (stat(d->ttyName.data(), &st)) return false; // this just cannot happen ... *cough* Yeah right, I just @@ -354,6 +304,92 @@ bool KPty::open() return true; } +bool KPty::open() +{ + if (d->masterFd >= 0) + return true; + + QCString 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. + +#if defined(HAVE_PTSNAME) && defined(HAVE_GRANTPT) +#ifdef _AIX + d->masterFd = ::open("/dev/ptc",O_RDWR); +#else + d->masterFd = ::open("/dev/ptmx",O_RDWR); +#endif + if (d->masterFd >= 0) + { + char *ptsn = ptsname(d->masterFd); + if (ptsn) { + grantpt(d->masterFd); + d->ttyName = ptsn; + goto gotpty; + } else { + ::close(d->masterFd); + d->masterFd = -1; + } + } +#endif + + // Linux device names, FIXME: Trouble on other systems? + for (const char* s3 = "pqrstuvwxyzabcdefghijklmno"; *s3; s3++) + { + for (const char* s4 = "0123456789abcdefghijklmnopqrstuvwxyz"; *s4; s4++) + { + ptyName.sprintf("/dev/pty%c%c", *s3, *s4); + d->ttyName.sprintf("/dev/tty%c%c", *s3, *s4); + + d->masterFd = ::open(ptyName.data(), O_RDWR); + if (d->masterFd >= 0) + { +#ifdef __sun + /* 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 /* sun */ + 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; + } + } + } + + kdWarning(175) << "Can't open a pseudo teletype" << endl; + return false; + + gotpty: + return _attachPty(d->masterFd); + + return true; +} + void KPty::close() { if (d->masterFd < 0) |