From fd94618b638534cebf02eacfae104d147c361492 Mon Sep 17 00:00:00 2001 From: Mavridis Philippe Date: Fri, 24 Jun 2022 14:11:03 +0300 Subject: Replaced old sftp ioslave with backported version Source: https://github.com/sandsmark/kde2-kio-sftp-kde4 Licence: GPLv2 or later This resolves issue #276. Signed-off-by: Mavridis Philippe --- tdeioslave/sftp/process.cpp | 493 -------------------------------------------- 1 file changed, 493 deletions(-) delete mode 100644 tdeioslave/sftp/process.cpp (limited to 'tdeioslave/sftp/process.cpp') diff --git a/tdeioslave/sftp/process.cpp b/tdeioslave/sftp/process.cpp deleted file mode 100644 index 164121497..000000000 --- a/tdeioslave/sftp/process.cpp +++ /dev/null @@ -1,493 +0,0 @@ -/* - * - * - * This file is part of the KDE project, module tdesu. - * Copyright (C) 1999,2000 Geert Jansen - * - * This file contains code from TEShell.C of the KDE konsole. - * Copyright (c) 1997,1998 by Lars Doelle - * - * 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 - -#include -#include -#include -#include -#include -#include -#include -#include -#include - -#include -#include -#include -#include -#include -#include - -#if defined(__SVR4) && defined(sun) -#include -#include -#endif - -#ifdef HAVE_SYS_SELECT_H -#include // Needed on some systems. -#endif - -#include -#include -#include - -#include -#include - -#include "process.h" -#include -#include - - -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; -} -- cgit v1.2.1