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-rw-r--r--kdesu/kdesud/kdesud.cpp418
1 files changed, 0 insertions, 418 deletions
diff --git a/kdesu/kdesud/kdesud.cpp b/kdesu/kdesud/kdesud.cpp
deleted file mode 100644
index d369aaf9b..000000000
--- a/kdesu/kdesud/kdesud.cpp
+++ /dev/null
@@ -1,418 +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>
- *
- *
- * tdesud.cpp: KDE su daemon. Offers "keep password" functionality to kde su.
- *
- * The socket $KDEHOME/socket-$(HOSTNAME)/tdesud_$(display) is used for communication with
- * client programs.
- *
- * The protocol: Client initiates the connection. All commands and responses
- * are terminated by a newline.
- *
- * Client Server Description
- * ------ ------ -----------
- *
- * PASS <pass> <timeout> OK Set password for commands in
- * this session. Password is
- * valid for <timeout> seconds.
- *
- * USER <user> OK Set the target user [required]
- *
- * EXEC <command> OK Execute command <command>. If
- * NO <command> has been executed
- * before (< timeout) no PASS
- * command is needed.
- *
- * DEL <command> OK Delete password for command
- * NO <command>.
- *
- * PING OK Ping the server (diagnostics).
- */
-
-
-#include <config.h>
-
-#include <stdio.h>
-#include <stdlib.h>
-#include <unistd.h>
-#include <ctype.h>
-#include <string.h>
-#include <stdarg.h>
-#include <signal.h>
-#include <pwd.h>
-#include <errno.h>
-
-#include <sys/prctl.h>
-#include <sys/time.h>
-#include <sys/stat.h>
-#include <sys/types.h>
-#include <sys/socket.h>
-#include <sys/un.h>
-#include <sys/resource.h>
-#include <sys/wait.h>
-#ifdef HAVE_SYS_SELECT_H
-#include <sys/select.h> // Needed on some systems.
-#endif
-
-#include <tqptrvector.h>
-#include <tqfile.h>
-#include <tqregexp.h>
-
-#include <kinstance.h>
-#include <kdebug.h>
-#include <klocale.h>
-#include <kcmdlineargs.h>
-#include <kstandarddirs.h>
-#include <kaboutdata.h>
-#include <tdesu/client.h>
-#include <tdesu/defaults.h>
-#include <ksockaddr.h>
-
-#include "repo.h"
-#include "handler.h"
-
-#include <X11/X.h>
-#include <X11/Xlib.h>
-
-#ifndef SUN_LEN
-#define SUN_LEN(ptr) ((kde_socklen_t) (((struct sockaddr_un *) 0)->sun_path) \
- + strlen ((ptr)->sun_path))
-#endif
-
-#define ERR strerror(errno)
-
-// Globals
-
-Repository *repo;
-const char *Version = "1.01";
-TQCString sock;
-Display *x11Display;
-int pipeOfDeath[2];
-
-
-void tdesud_cleanup()
-{
- unlink(sock);
-}
-
-
-// Borrowed from kdebase/kaudio/kaudioserver.cpp
-
-extern "C" int xio_errhandler(Display *);
-
-int xio_errhandler(Display *)
-{
- kdError(1205) << "Fatal IO error, exiting...\n";
- tdesud_cleanup();
- exit(1);
- return 1; //silence compilers
-}
-
-int initXconnection()
-{
- x11Display = XOpenDisplay(NULL);
- if (x11Display != 0L)
- {
- XSetIOErrorHandler(xio_errhandler);
- XCreateSimpleWindow(x11Display, DefaultRootWindow(x11Display),
- 0, 0, 1, 1, 0,
- BlackPixelOfScreen(DefaultScreenOfDisplay(x11Display)),
- BlackPixelOfScreen(DefaultScreenOfDisplay(x11Display)));
- return XConnectionNumber(x11Display);
- } else
- {
- kdWarning(1205) << "Can't connect to the X Server.\n";
- kdWarning(1205) << "Might not terminate at end of session.\n";
- return -1;
- }
-}
-
-extern "C" {
- void signal_exit(int);
- void sigchld_handler(int);
-}
-
-void signal_exit(int sig)
-{
- kdDebug(1205) << "Exiting on signal " << sig << "\n";
- tdesud_cleanup();
- exit(1);
-}
-
-void sigchld_handler(int)
-{
- char c = ' ';
- write(pipeOfDeath[1], &c, 1);
-}
-
-/**
- * Creates an AF_UNIX socket in socket resource, mode 0600.
- */
-
-int create_socket()
-{
- int sockfd;
- ksocklen_t addrlen;
- struct stat s;
-
- TQCString display(getenv("DISPLAY"));
- if (display.isEmpty())
- {
- kdWarning(1205) << "$DISPLAY is not set\n";
- return -1;
- }
-
- // strip the screen number from the display
- display.replace(TQRegExp("\\.[0-9]+$"), "");
-
- sock = TQFile::encodeName(locateLocal("socket", TQString("tdesud_%1").arg(static_cast<const char *>(display))));
- int stat_err=lstat(sock, &s);
- if(!stat_err && S_ISLNK(s.st_mode)) {
- kdWarning(1205) << "Someone is running a symlink attack on you\n";
- if(unlink(sock)) {
- kdWarning(1205) << "Could not delete symlink\n";
- return -1;
- }
- }
-
- if (!access(sock, R_OK|W_OK))
- {
- KDEsuClient client;
- if (client.ping() == -1)
- {
- kdWarning(1205) << "stale socket exists\n";
- if (unlink(sock))
- {
- kdWarning(1205) << "Could not delete stale socket\n";
- return -1;
- }
- } else
- {
- kdWarning(1205) << "tdesud is already running\n";
- return -1;
- }
-
- }
-
- sockfd = socket(PF_UNIX, SOCK_STREAM, 0);
- if (sockfd < 0)
- {
- kdError(1205) << "socket(): " << ERR << "\n";
- return -1;
- }
-
- struct sockaddr_un addr;
- addr.sun_family = AF_UNIX;
- strncpy(addr.sun_path, sock, sizeof(addr.sun_path)-1);
- addr.sun_path[sizeof(addr.sun_path)-1] = '\000';
- addrlen = SUN_LEN(&addr);
- if (bind(sockfd, (struct sockaddr *)&addr, addrlen) < 0)
- {
- kdError(1205) << "bind(): " << ERR << "\n";
- return -1;
- }
-
- struct linger lin;
- lin.l_onoff = lin.l_linger = 0;
- if (setsockopt(sockfd, SOL_SOCKET, SO_LINGER, (char *) &lin,
- sizeof(linger)) < 0)
- {
- kdError(1205) << "setsockopt(SO_LINGER): " << ERR << "\n";
- return -1;
- }
-
- int opt = 1;
- if (setsockopt(sockfd, SOL_SOCKET, SO_REUSEADDR, (char *) &opt,
- sizeof(opt)) < 0)
- {
- kdError(1205) << "setsockopt(SO_REUSEADDR): " << ERR << "\n";
- return -1;
- }
- opt = 1;
- if (setsockopt(sockfd, SOL_SOCKET, SO_KEEPALIVE, (char *) &opt,
- sizeof(opt)) < 0)
- {
- kdError(1205) << "setsockopt(SO_KEEPALIVE): " << ERR << "\n";
- return -1;
- }
- chmod(sock, 0600);
- return sockfd;
-}
-
-
-/**
- * Main program
- */
-
-int main(int argc, char *argv[])
-{
- prctl(PR_SET_DUMPABLE, 0);
-
- KAboutData aboutData("tdesud", I18N_NOOP("KDE su daemon"),
- Version, I18N_NOOP("Daemon used by tdesu"),
- KAboutData::License_Artistic,
- "Copyright (c) 1999,2000 Geert Jansen");
- aboutData.addAuthor("Geert Jansen", I18N_NOOP("Author"),
- "jansen@kde.org", "http://www.stack.nl/~geertj/");
- KCmdLineArgs::init(argc, argv, &aboutData);
- KInstance instance(&aboutData);
-
- // Set core dump size to 0
- struct rlimit rlim;
- rlim.rlim_cur = rlim.rlim_max = 0;
- if (setrlimit(RLIMIT_CORE, &rlim) < 0)
- {
- kdError(1205) << "setrlimit(): " << ERR << "\n";
- exit(1);
- }
-
- // Create the Unix socket.
- int sockfd = create_socket();
- if (sockfd < 0)
- exit(1);
- if (listen(sockfd, 1) < 0)
- {
- kdError(1205) << "listen(): " << ERR << "\n";
- tdesud_cleanup();
- exit(1);
- }
- int maxfd = sockfd;
-
- // Ok, we're accepting connections. Fork to the background.
- pid_t pid = fork();
- if (pid == -1)
- {
- kdError(1205) << "fork():" << ERR << "\n";
- tdesud_cleanup();
- exit(1);
- }
- if (pid)
- exit(0);
-
- // Make sure we exit when the display gets closed.
- int x11Fd = initXconnection();
- maxfd = QMAX(maxfd, x11Fd);
-
- repo = new Repository;
- TQPtrVector<ConnectionHandler> handler;
- handler.setAutoDelete(true);
-
- pipe(pipeOfDeath);
- maxfd = QMAX(maxfd, pipeOfDeath[0]);
-
- // Signal handlers
- struct sigaction sa;
- sa.sa_handler = signal_exit;
- sigemptyset(&sa.sa_mask);
- sa.sa_flags = 0;
- sigaction(SIGHUP, &sa, 0L);
- sigaction(SIGINT, &sa, 0L);
- sigaction(SIGTERM, &sa, 0L);
- sigaction(SIGQUIT, &sa, 0L);
-
- sa.sa_handler = sigchld_handler;
- sa.sa_flags = SA_NOCLDSTOP;
- sigaction(SIGCHLD, &sa, 0L);
- sa.sa_handler = SIG_IGN;
- sigaction(SIGPIPE, &sa, 0L);
-
- // Main execution loop
-
- ksocklen_t addrlen;
- struct sockaddr_un clientname;
-
- fd_set tmp_fds, active_fds;
- FD_ZERO(&active_fds);
- FD_SET(sockfd, &active_fds);
- FD_SET(pipeOfDeath[0], &active_fds);
- if (x11Fd != -1)
- FD_SET(x11Fd, &active_fds);
-
- while (1)
- {
- tmp_fds = active_fds;
- if(x11Display)
- XFlush(x11Display);
- if (select(maxfd+1, &tmp_fds, 0L, 0L, 0L) < 0)
- {
- if (errno == EINTR) continue;
-
- kdError(1205) << "select(): " << ERR << "\n";
- exit(1);
- }
- repo->expire();
- for (int i=0; i<=maxfd; i++)
- {
- if (!FD_ISSET(i, &tmp_fds))
- continue;
-
- if (i == pipeOfDeath[0])
- {
- char buf[101];
- read(pipeOfDeath[0], buf, 100);
- pid_t result;
- do
- {
- int status;
- result = waitpid((pid_t)-1, &status, WNOHANG);
- if (result > 0)
- {
- for(int j=handler.size(); j--;)
- {
- if (handler[j] && (handler[j]->m_pid == result))
- {
- handler[j]->m_exitCode = WEXITSTATUS(status);
- handler[j]->m_hasExitCode = true;
- handler[j]->sendExitCode();
- handler[j]->m_pid = 0;
- break;
- }
- }
- }
- }
- while(result > 0);
- }
-
- if (i == x11Fd)
- {
- // Discard X events
- XEvent event_return;
- if (x11Display)
- while(XPending(x11Display))
- XNextEvent(x11Display, &event_return);
- continue;
- }
-
- if (i == sockfd)
- {
- // Accept new connection
- int fd;
- addrlen = 64;
- fd = accept(sockfd, (struct sockaddr *) &clientname, &addrlen);
- if (fd < 0)
- {
- kdError(1205) << "accept():" << ERR << "\n";
- continue;
- }
- if (fd+1 > (int) handler.size())
- handler.resize(fd+1);
- handler.insert(fd, new ConnectionHandler(fd));
- maxfd = TQMAX(maxfd, fd);
- FD_SET(fd, &active_fds);
- continue;
- }
-
- // handle alreay established connection
- if (handler[i] && handler[i]->handle() < 0)
- {
- handler.remove(i);
- FD_CLR(i, &active_fds);
- }
- }
- }
- kdWarning(1205) << "???\n";
-}
-
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