summaryrefslogtreecommitdiffstats
path: root/tdeioslave/sftp/process.cpp
diff options
context:
space:
mode:
Diffstat (limited to 'tdeioslave/sftp/process.cpp')
-rw-r--r--tdeioslave/sftp/process.cpp493
1 files changed, 0 insertions, 493 deletions
diff --git a/tdeioslave/sftp/process.cpp b/tdeioslave/sftp/process.cpp
deleted file mode 100644
index bcb686df0..000000000
--- a/tdeioslave/sftp/process.cpp
+++ /dev/null
@@ -1,493 +0,0 @@
-/* vi: ts=8 sts=4 sw=4
- *
- *
- * 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.
- *
- * process.cpp: Functionality to build a front end to password asking
- * terminal programs.
- */
-
-#include <config.h>
-
-#include <stdio.h>
-#include <stdlib.h>
-#include <unistd.h>
-#include <fcntl.h>
-#include <signal.h>
-#include <errno.h>
-#include <string.h>
-#include <termios.h>
-#include <signal.h>
-
-#include <sys/types.h>
-#include <sys/wait.h>
-#include <sys/stat.h>
-#include <sys/time.h>
-#include <sys/resource.h>
-#include <sys/socket.h>
-
-#if defined(__SVR4) && defined(sun)
-#include <stropts.h>
-#include <sys/stream.h>
-#endif
-
-#ifdef HAVE_SYS_SELECT_H
-#include <sys/select.h> // Needed on some systems.
-#endif
-
-#include <tqglobal.h>
-#include <tqcstring.h>
-#include <tqfile.h>
-
-#include <kdebug.h>
-#include <kstandarddirs.h>
-
-#include "process.h"
-#include <tdesu/tdesu_pty.h>
-#include <tdesu/kcookie.h>
-
-
-MyPtyProcess::MyPtyProcess()
-{
- m_bTerminal = false;
- m_bErase = false;
- m_pPTY = 0L;
- m_Pid = -1;
- m_Fd = -1;
-}
-
-
-int MyPtyProcess::init()
-{
- delete m_pPTY;
- m_pPTY = new PTY();
- m_Fd = m_pPTY->getpt();
- if (m_Fd < 0)
- return -1;
- if ((m_pPTY->grantpt() < 0) || (m_pPTY->unlockpt() < 0))
- {
- kdError(PTYPROC) << k_lineinfo << "Master setup failed.\n" << endl;
- m_Fd = -1;
- return -1;
- }
- m_TTY = m_pPTY->ptsname();
- m_stdoutBuf.resize(0);
- m_stderrBuf.resize(0);
- m_ptyBuf.resize(0);
- return 0;
-}
-
-
-MyPtyProcess::~MyPtyProcess()
-{
- delete m_pPTY;
-}
-
-
-/*
- * Read one line of input. The terminal is in canonical mode, so you always
- * read a line at at time, but it's possible to receive multiple lines in
- * one time.
- */
-
-
-TQCString MyPtyProcess::readLineFrom(int fd, TQCString& inbuf, bool block)
-{
- int pos;
- TQCString ret;
-
- if (!inbuf.isEmpty())
- {
-
- pos = inbuf.find('\n');
-
- if (pos == -1)
- {
- ret = inbuf;
- inbuf.resize(0);
- } else
- {
- ret = inbuf.left(pos);
- inbuf = inbuf.mid(pos+1);
- }
- return ret;
-
- }
-
- int flags = fcntl(fd, F_GETFL);
- if (flags < 0)
- {
- kdError(PTYPROC) << k_lineinfo << "fcntl(F_GETFL): " << perror << "\n";
- return ret;
- }
- if (block)
- flags &= ~O_NONBLOCK;
- else
- flags |= O_NONBLOCK;
- if (fcntl(fd, F_SETFL, flags) < 0)
- {
- kdError(PTYPROC) << k_lineinfo << "fcntl(F_SETFL): " << perror << "\n";
- return ret;
- }
-
- int nbytes;
- char buf[256];
- while (1)
- {
- nbytes = read(fd, buf, 255);
- if (nbytes == -1)
- {
- if (errno == EINTR)
- continue;
- else break;
- }
- if (nbytes == 0)
- break; // eof
-
- buf[nbytes] = '\000';
- inbuf += buf;
-
- pos = inbuf.find('\n');
- if (pos == -1)
- {
- ret = inbuf;
- inbuf.resize(0);
- } else
- {
- ret = inbuf.left(pos);
- inbuf = inbuf.mid(pos+1);
- }
- break;
-
- }
-
- return ret;
-}
-
-void MyPtyProcess::writeLine(TQCString line, bool addnl)
-{
- if (!line.isEmpty())
- write(m_Fd, line, line.length());
- if (addnl)
- write(m_Fd, "\n", 1);
-}
-
-void MyPtyProcess::unreadLineFrom(TQCString inbuf, TQCString line, bool addnl)
-{
- if (addnl)
- line += '\n';
- if (!line.isEmpty())
- inbuf.prepend(line);
-}
-
-
-/*
- * Fork and execute the command. This returns in the parent.
- */
-
-int MyPtyProcess::exec(TQCString command, QCStringList args)
-{
- kdDebug(PTYPROC) << "MyPtyProcess::exec(): " << command << endl;// << ", args = " << args << endl;
-
- if (init() < 0)
- return -1;
-
- // Open the pty slave before forking. See SetupTTY()
- int slave = open(m_TTY, O_RDWR);
- if (slave < 0)
- {
- kdError(PTYPROC) << k_lineinfo << "Could not open slave pty.\n";
- return -1;
- }
-
- // Also create a socket pair to connect to standard in/out.
- // This will allow use to bypass the terminal.
- int inout[2];
- int err[2];
- int ok = 1;
- ok &= socketpair(AF_UNIX, SOCK_STREAM, 0, inout) >= 0;
- ok &= socketpair(AF_UNIX, SOCK_STREAM, 0, err ) >= 0;
- if( !ok ) {
- kdDebug(PTYPROC) << "Could not create socket" << endl;
- return -1;
- }
- m_stdinout = inout[0];
- m_err = err[0];
-
- if ((m_Pid = fork()) == -1)
- {
- kdError(PTYPROC) << k_lineinfo << "fork(): " << perror << "\n";
- return -1;
- }
-
- // Parent
- if (m_Pid)
- {
- close(slave);
- close(inout[1]);
- close(err[1]);
- return 0;
- }
-
- // Child
-
- ok = 1;
- ok &= dup2(inout[1], STDIN_FILENO) >= 0;
- ok &= dup2(inout[1], STDOUT_FILENO) >= 0;
- ok &= dup2(err[1], STDERR_FILENO) >= 0;
-
- if( !ok )
- {
- kdError(PTYPROC) << "dup of socket descriptor failed" << endl;
- _exit(1);
- }
-
- close(inout[1]);
- close(inout[0]);
- close(err[1]);
- close(err[0]);
-
- if (SetupTTY(slave) < 0)
- _exit(1);
-
- // From now on, terminal output goes through the tty.
- TQCString path;
- if (command.contains('/'))
- path = command;
- else
- {
- TQString file = TDEStandardDirs::findExe(command);
- if (file.isEmpty())
- {
- kdError(PTYPROC) << k_lineinfo << command << " not found\n";
- _exit(1);
- }
- path = TQFile::encodeName(file);
- }
-
- int i;
- const char * argp[32];
- argp[0] = path;
- QCStringList::Iterator it;
- for (i=1, it=args.begin(); it!=args.end() && i<31; it++) {
- argp[i++] = *it;
- kdDebug(PTYPROC) << *it << endl;
- }
- argp[i] = 0L;
- execv(path, (char * const *)argp);
- kdError(PTYPROC) << k_lineinfo << "execv(\"" << path << "\"): " << perror << "\n";
- _exit(1);
- return -1; // Shut up compiler. Never reached.
-}
-
-/*
- * Wait until the terminal is set into no echo mode. At least one su
- * (RH6 w/ Linux-PAM patches) sets noecho mode AFTER writing the Password:
- * prompt, using TCSAFLUSH. This flushes the terminal I/O queues, possibly
- * taking the password with it. So we wait until no echo mode is set
- * before writing the password.
- * Note that this is done on the slave fd. While Linux allows tcgetattr() on
- * the master side, Solaris doesn't.
- */
-
-int MyPtyProcess::WaitSlave()
-{
- int slave = open(m_TTY, O_RDWR);
- if (slave < 0)
- {
- kdError(PTYPROC) << k_lineinfo << "Could not open slave tty.\n";
- return -1;
- }
-
- struct termios tio;
- struct timeval tv;
- while (1)
- {
- if (tcgetattr(slave, &tio) < 0)
- {
- kdError(PTYPROC) << k_lineinfo << "tcgetattr(): " << perror << "\n";
- close(slave);
- return -1;
- }
- if (tio.c_lflag & ECHO)
- {
- kdDebug(PTYPROC) << k_lineinfo << "Echo mode still on." << endl;
- // sleep 1/10 sec
- tv.tv_sec = 0; tv.tv_usec = 100000;
- select(slave, 0L, 0L, 0L, &tv);
- continue;
- }
- break;
- }
- close(slave);
- return 0;
-}
-
-
-int MyPtyProcess::enableLocalEcho(bool enable)
-{
- int slave = open(m_TTY, O_RDWR);
- if (slave < 0)
- {
- kdError(PTYPROC) << k_lineinfo << "Could not open slave tty.\n";
- return -1;
- }
- struct termios tio;
- if (tcgetattr(slave, &tio) < 0)
- {
- kdError(PTYPROC) << k_lineinfo << "tcgetattr(): " << perror << "\n";
- close(slave); return -1;
- }
- if (enable)
- tio.c_lflag |= ECHO;
- else
- tio.c_lflag &= ~ECHO;
- if (tcsetattr(slave, TCSANOW, &tio) < 0)
- {
- kdError(PTYPROC) << k_lineinfo << "tcsetattr(): " << perror << "\n";
- close(slave); return -1;
- }
- close(slave);
- return 0;
-}
-
-
-/*
- * Copy output to stdout until the child process exists, or a line of output
- * matches `m_Exit'.
- * We have to use waitpid() to test for exit. Merely waiting for EOF on the
- * pty does not work, because the target process may have children still
- * attached to the terminal.
- */
-
-int MyPtyProcess::waitForChild()
-{
- int ret, state, retval = 1;
- struct timeval tv;
-
- fd_set fds;
- FD_ZERO(&fds);
-
- while (1)
- {
- tv.tv_sec = 1; tv.tv_usec = 0;
- FD_SET(m_Fd, &fds);
- ret = select(m_Fd+1, &fds, 0L, 0L, &tv);
- if (ret == -1)
- {
- if (errno == EINTR) continue;
- else
- {
- kdError(PTYPROC) << k_lineinfo << "select(): " << perror << "\n";
- return -1;
- }
- }
-
- if (ret)
- {
- TQCString line = readLine(false);
- while (!line.isNull())
- {
- if (!m_Exit.isEmpty() && !tqstrnicmp(line, m_Exit, m_Exit.length()))
- kill(m_Pid, SIGTERM);
- if (m_bTerminal)
- {
- fputs(line, stdout);
- fputc('\n', stdout);
- }
- line = readLine(false);
- }
- }
-
- // Check if the process is still alive
- ret = waitpid(m_Pid, &state, WNOHANG);
- if (ret < 0)
- {
- if (errno == ECHILD)
- retval = 0;
- else
- kdError(PTYPROC) << k_lineinfo << "waitpid(): " << perror << "\n";
- break;
- }
- if (ret == m_Pid)
- {
- if (WIFEXITED(state))
- retval = WEXITSTATUS(state);
- break;
- }
- }
-
- return -retval;
-}
-
-/*
- * SetupTTY: Creates a new session. The filedescriptor "fd" should be
- * connected to the tty. It is closed after the tty is reopened to make it
- * our controlling terminal. This way the tty is always opened at least once
- * so we'll never get EIO when reading from it.
- */
-
-int MyPtyProcess::SetupTTY(int fd)
-{
- // Reset signal handlers
- for (int sig = 1; sig < NSIG; sig++)
- signal(sig, SIG_DFL);
- signal(SIGHUP, SIG_IGN);
-
- // Close all file handles
-// struct rlimit rlp;
-// getrlimit(RLIMIT_NOFILE, &rlp);
-// for (int i = 0; i < (int)rlp.rlim_cur; i++)
-// if (i != fd) close(i);
-
- // Create a new session.
- setsid();
-
- // Open slave. This will make it our controlling terminal
- int slave = open(m_TTY, O_RDWR);
- if (slave < 0)
- {
- kdError(PTYPROC) << k_lineinfo << "Could not open slave side: " << perror << "\n";
- return -1;
- }
- close(fd);
-
-#if defined(__SVR4) && defined(sun)
-
- // Solaris STREAMS environment.
- // Push these modules to make the stream look like a terminal.
- ioctl(slave, I_PUSH, "ptem");
- ioctl(slave, I_PUSH, "ldterm");
-
-#endif
-
- // Connect stdin, stdout and stderr
-// dup2(slave, 0); dup2(slave, 1); dup2(slave, 2);
-// if (slave > 2)
-// close(slave);
-
- // Disable OPOST processing. Otherwise, '\n' are (on Linux at least)
- // translated to '\r\n'.
- struct termios tio;
- if (tcgetattr(slave, &tio) < 0)
- {
- kdError(PTYPROC) << k_lineinfo << "tcgetattr(): " << perror << "\n";
- return -1;
- }
- tio.c_oflag &= ~OPOST;
- if (tcsetattr(slave, TCSANOW, &tio) < 0)
- {
- kdError(PTYPROC) << k_lineinfo << "tcsetattr(): " << perror << "\n";
- return -1;
- }
-
- return 0;
-}
generated by cgit v1.2.3 (git 2.25.1) at 2024-04-19 11:48:49 +0000