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Diffstat (limited to 'kdesu/kdesu_pty.cpp')
| -rw-r--r-- | kdesu/kdesu_pty.cpp | 302 |
1 files changed, 0 insertions, 302 deletions
diff --git a/kdesu/kdesu_pty.cpp b/kdesu/kdesu_pty.cpp deleted file mode 100644 index d3392ec5e..000000000 --- a/kdesu/kdesu_pty.cpp +++ /dev/null @@ -1,302 +0,0 @@ -/* vi: ts=8 sts=4 sw=4 - * - * $Id$ - * - * This file is part of the KDE project, module tdesu. - * Copyright (C) 1999,2000 Geert Jansen <jansen@kde.org> - * - * This file contains code from TEShell.C of the KDE konsole. - * Copyright (c) 1997,1998 by Lars Doelle <lars.doelle@on-line.de> - * - * This is free software; you can use this library under the GNU Library - * General Public License, version 2. See the file "COPYING.LIB" for the - * exact licensing terms. - * - * pty.cpp: Access to PTY's on different systems a la UNIX98. - */ - - -#ifndef _GNU_SOURCE -#define _GNU_SOURCE /* Needed for getpt, ptsname in glibc 2.1.x systems */ -#endif - -#include <config.h> - -#include <stdio.h> -#include <fcntl.h> -#include <unistd.h> -#include <string.h> -#include <stdlib.h> -#include <errno.h> - -#include <sys/types.h> -#include <sys/stat.h> -#include <sys/wait.h> -#include <sys/ioctl.h> -#if defined(__osf__) || defined(__CYGWIN__) -#include <pty.h> -#endif - -#include <tqglobal.h> -#include <tqcstring.h> - -#include <kdebug.h> -#include <kstandarddirs.h> -#include "tdesu_pty.h" - -// stdlib.h is meant to declare the prototypes but doesn't :( -#ifndef __THROW -#define __THROW -#endif - -#ifdef HAVE_GRANTPT -extern "C" int grantpt(int fd) __THROW; -#endif - -#ifdef HAVE_PTSNAME -extern "C" char * ptsname(int fd) __THROW; -#endif - -#ifdef HAVE_UNLOCKPT -extern "C" int unlockpt(int fd) __THROW; -#endif - -#ifdef HAVE__GETPTY -extern "C" char *_getpty(int *, int, mode_t, int); -#endif - -#ifdef HAVE_PTY_H - #include <pty.h> -#endif - -#include <termios.h> - -#ifdef HAVE_LIBUTIL_H - #include <libutil.h> -#elif defined(HAVE_UTIL_H) - #include <util.h> -#endif - -PTY::PTY() -{ - ptyfd = -1; -} - -PTY::~PTY() -{ - if (ptyfd >= 0) - close(ptyfd); -} - - -// Opens a pty master and returns its filedescriptor. - -int PTY::getpt() -{ - -#if defined(HAVE_GETPT) && defined(HAVE_PTSNAME) - - // 1: UNIX98: preferred way - ptyfd = ::getpt(); - ttyname = ::ptsname(ptyfd); - return ptyfd; - -#elif defined(HAVE_OPENPTY) - // 2: BSD interface - // More preferred than the linux hacks - char name[30]; - int master_fd, slave_fd; - if (openpty(&master_fd, &slave_fd, name, 0L, 0L) != -1) { - ttyname = name; - name[5]='p'; - ptyname = name; - close(slave_fd); // We don't need this yet // Yes, we do. - ptyfd = master_fd; - return ptyfd; - } - ptyfd = -1; - kdDebug(900) << k_lineinfo << "Opening pty failed.\n"; - return -1; - -#elif defined(HAVE__GETPTY) - // 3: Irix interface - int master_fd; - ttyname = _getpty(&master_fd,O_RDWR,0600,0); - if (ttyname) - ptyfd = master_fd; - else{ - ptyfd = -1; - kdDebug(900) << k_lineinfo << "Opening pty failed.error" << errno << '\n'; - } - return ptyfd; - -#else - - // 4: Open terminal device directly - // 4.1: Try /dev/ptmx first. (Linux w/ Unix98 PTYs, Solaris) - - ptyfd = open("/dev/ptmx", O_RDWR); - if (ptyfd >= 0) { - ptyname = "/dev/ptmx"; -#ifdef HAVE_PTSNAME - ttyname = ::ptsname(ptyfd); - return ptyfd; -#elif defined (TIOCGPTN) - int ptyno; - if (ioctl(ptyfd, TIOCGPTN, &ptyno) == 0) { - ttyname.sprintf("/dev/pts/%d", ptyno); - return ptyfd; - } -#endif - close(ptyfd); - } - - // 4.2: Try /dev/pty[p-e][0-f] (Linux w/o UNIX98 PTY's) - - for (const char *c1 = "pqrstuvwxyzabcde"; *c1 != '\0'; c1++) - { - for (const char *c2 = "0123456789abcdef"; *c2 != '\0'; c2++) - { - ptyname.sprintf("/dev/pty%c%c", *c1, *c2); - ttyname.sprintf("/dev/tty%c%c", *c1, *c2); - if (access(ptyname, F_OK) < 0) - goto linux_out; - ptyfd = open(ptyname, O_RDWR); - if (ptyfd >= 0) - return ptyfd; - } - } -linux_out: - - // 4.3: Try /dev/pty%d (SCO, Unixware) - - for (int i=0; i<256; i++) - { - ptyname.sprintf("/dev/ptyp%d", i); - ttyname.sprintf("/dev/ttyp%d", i); - if (access(ptyname, F_OK) < 0) - break; - ptyfd = open(ptyname, O_RDWR); - if (ptyfd >= 0) - return ptyfd; - } - - - // Other systems ?? - ptyfd = -1; - kdDebug(900) << k_lineinfo << "Unknown system or all methods failed.\n"; - return -1; - -#endif // HAVE_GETPT && HAVE_PTSNAME - -} - - -int PTY::grantpt() -{ - if (ptyfd < 0) - return -1; - -#ifdef HAVE_GRANTPT - - return ::grantpt(ptyfd); - -#elif defined(HAVE_OPENPTY) - - // the BSD openpty() interface chowns the devices properly for us, - // no need to do this at all - return 0; - -#else - - // konsole_grantpty only does /dev/pty?? - if (ptyname.left(8) != "/dev/pty") - return 0; - - // Use konsole_grantpty: - if (KStandardDirs::findExe("konsole_grantpty").isEmpty()) - { - kdError(900) << k_lineinfo << "konsole_grantpty not found.\n"; - return -1; - } - - // As defined in konsole_grantpty.c - const int pty_fileno = 3; - - pid_t pid; - if ((pid = fork()) == -1) - { - kdError(900) << k_lineinfo << "fork(): " << perror << "\n"; - return -1; - } - - if (pid) - { - // Parent: wait for child - int ret; - waitpid(pid, &ret, 0); - if (WIFEXITED(ret) && !WEXITSTATUS(ret)) - return 0; - kdError(900) << k_lineinfo << "konsole_grantpty returned with error: " - << WEXITSTATUS(ret) << "\n"; - return -1; - } else - { - // Child: exec konsole_grantpty - if (ptyfd != pty_fileno && dup2(ptyfd, pty_fileno) < 0) - _exit(1); - execlp("konsole_grantpty", "konsole_grantpty", "--grant", (void *)0); - kdError(900) << k_lineinfo << "exec(): " << perror << "\n"; - _exit(1); - } - - // shut up, gcc - return 0; - -#endif // HAVE_GRANTPT -} - - -/** - * Unlock the pty. This allows connections on the slave side. - */ - -int PTY::unlockpt() -{ - if (ptyfd < 0) - return -1; - -#ifdef HAVE_UNLOCKPT - - // (Linux w/ glibc 2.1, Solaris, ...) - - return ::unlockpt(ptyfd); - -#elif defined(TIOCSPTLCK) - - // Unlock pty (Linux w/ UNIX98 PTY's & glibc 2.0) - int flag = 0; - return ioctl(ptyfd, TIOCSPTLCK, &flag); - -#else - - // Other systems (Linux w/o UNIX98 PTY's, ...) - return 0; - -#endif - -} - - -/** - * Return the slave side name. - */ - -TQCString PTY::ptsname() -{ - if (ptyfd < 0) - return 0; - - return ttyname; -} - |