-rw-r--r-- | core/opie-login/main.cpp | 126 |
1 files changed, 112 insertions, 14 deletions
diff --git a/core/opie-login/main.cpp b/core/opie-login/main.cpp index df9451d..91610af 100644 --- a/core/opie-login/main.cpp +++ b/core/opie-login/main.cpp @@ -1,83 +1,165 @@ +#define _GNU_SOURCE + +#include <sys/types.h> +#include <time.h> #include <sys/time.h> #include <sys/resource.h> #include <unistd.h> #include <syslog.h> -#include <sys/types.h> #include <sys/wait.h> #include <stdio.h> #include <stdlib.h> #include <signal.h> +#include <getopt.h> +#include <string.h> #include <qpe/qpeapplication.h> #include <qpe/qcopenvelope_qws.h> #include <qpe/qpestyle.h> #include <qpe/power.h> #include <opie/odevice.h> #include <qwindowsystem_qws.h> -#include <qfile.h> +#include <qmessagebox.h> +#include <qlabel.h> +#include <qtimer.h> +#include "loginapplication.h" #include "loginwindowimpl.h" #include "calibrate.h" using namespace Opie; int login_main ( int argc, char **argv ); -void sigusr1 ( int sig ); +void sigterm ( int sig ); void exit_closelog ( ); +static struct option long_options [] = { + { "autologin", 1, 0, 'a' }, + { 0, 0, 0, 0 } +}; int main ( int argc, char **argv ) { if ( ::geteuid ( ) != 0 ) { ::fprintf ( stderr, "%s can only be executed by root. (or chmod +s)", argv [0] ); return 1; } + if ( ::getuid ( ) != 0 ) // qt doesn't really like SUID and + ::setuid ( 0 ); // messes up things like config files + + char *autolog = 0; + int c; + while (( c = ::getopt_long ( argc, argv, "a:", long_options, 0 )) != -1 ) { + switch ( c ) { + case 'a': + autolog = optarg; + break; + default: + ::fprintf ( stderr, "Usage: %s [-a|--autologin=<user>]\n", argv [0] ); + return 2; + } + } // struct rlimit rl; // ::getrlimit ( RLIMIT_NOFILE, &rl ); // for ( unsigned int i = 0; i < rl. rlim_cur; i++ ) // ::close ( i ); ::setpgid ( 0, 0 ); ::setsid ( ); - ::signal ( SIGUSR1, sigusr1 ); + ::signal ( SIGTERM, sigterm ); ::openlog ( "opie-login", LOG_CONS, LOG_AUTHPRIV ); ::atexit ( exit_closelog ); while ( true ) { pid_t child = ::fork ( ); if ( child < 0 ) { - ::syslog ( LOG_ERR, "Could not fork process" ); + ::syslog ( LOG_ERR, "Could not fork GUI process\n" ); break; - } else if ( child > 0 ) { int status = 0; + time_t started = ::time ( 0 ); while ( ::waitpid ( child, &status, 0 ) < 0 ) { } + + if (( ::time ( 0 ) - started ) < 3 ) { + if ( autolog ) { + ::syslog ( LOG_ERR, "Respawning too fast -- disabling auto-login\n" ); + autolog = 0; + } + else { + ::syslog ( LOG_ERR, "Respawning too fast -- going down\n" ); + break; + } + } + int killedbysig = 0; + + if ( WIFSIGNALED( status )) { + switch ( WTERMSIG( status )) { + case SIGINT : + case SIGTERM: + case SIGKILL: + break; + + default : + killedbysig = WTERMSIG( status ); + break; + } + } + if ( killedbysig ) { // qpe was killed by an uncaught signal + qApp = 0; + + QWSServer::setDesktopBackground ( QImage ( )); + QApplication *app = new QApplication ( argc, argv, QApplication::GuiServer ); + app-> setFont ( QFont ( "Helvetica", 10 )); + app-> setStyle ( new QPEStyle ( )); + + const char *sig = ::strsignal ( killedbysig ); + QLabel *l = new QLabel ( 0, "sig", Qt::WStyle_Customize | Qt::WStyle_NoBorder | Qt::WStyle_Tool ); + l-> setText ( LoginWindowImpl::tr( "OPIE was terminated\nby an uncaught signal\n(%1)\n" ). arg ( sig )); + l-> setAlignment ( Qt::AlignCenter ); + l-> move ( 0, 0 ); + l-> resize ( app-> desktop ( )-> width ( ), app-> desktop ( )-> height ( )); + l-> show ( ); + QTimer::singleShot ( 3000, app, SLOT( quit ( ))); + app-> exec ( ); + delete app; + qApp = 0; + } } else { - ::exit ( login_main ( argc, argv )); + if ( autolog ) { + LoginApplication::setLoginAs ( autolog ); + + if ( LoginApplication::changeIdentity ( )) + ::exit ( LoginApplication::login ( )); + else + ::exit ( 0 ); + } + else + ::exit ( login_main ( argc, argv )); } } return 0; } -void sigusr1 ( int /*sig*/ ) +void sigterm ( int /*sig*/ ) { ::exit ( 0 ); } + void exit_closelog ( ) { ::closelog ( ); } @@ -178,19 +260,20 @@ private: int m_backlight_bright; bool m_backlight_forcedoff; }; + int login_main ( int argc, char **argv ) { QWSServer::setDesktopBackground( QImage() ); - QPEApplication app ( argc, argv, QApplication::GuiServer ); + LoginApplication *app = new LoginApplication ( argc, argv ); - app. setFont ( QFont ( "Helvetica", 10 )); - app. setStyle ( new QPEStyle ( )); + app-> setFont ( QFont ( "Helvetica", 10 )); + app-> setStyle ( new QPEStyle ( )); ODevice::inst ( )-> setSoftSuspend ( true ); #if defined(QT_QWS_CASSIOPEIA) || defined(QT_QWS_IPAQ) || defined(QT_QWS_EBX) if ( !QFile::exists ( "/etc/pointercal" )) { // Make sure calibration widget starts on top. @@ -205,17 +288,32 @@ int login_main ( int argc, char **argv ) saver-> setIntervals ( ); QWSServer::setScreenSaver ( saver ); saver-> restore ( ); LoginWindowImpl *lw = new LoginWindowImpl ( ); - app. setMainWidget ( lw ); - lw-> setGeometry ( 0, 0, app. desktop ( )-> width ( ), app. desktop ( )-> height ( )); + app-> setMainWidget ( lw ); + lw-> setGeometry ( 0, 0, app-> desktop ( )-> width ( ), app-> desktop ( )-> height ( )); lw-> show ( ); - int rc = app. exec ( ); + int rc = app-> exec ( ); ODevice::inst ( )-> setSoftSuspend ( false ); + if ( app-> loginAs ( )) { + if ( app-> changeIdentity ( )) { + app-> login ( ); + + // if login succeeds, it never comes back + + QMessageBox::critical ( 0, LoginWindowImpl::tr( "Failure" ), LoginWindowImpl::tr( "Could not start OPIE." )); + rc = 1; + } + else { + QMessageBox::critical ( 0, LoginWindowImpl::tr( "Failure" ), LoginWindowImpl::tr( "Could not switch to new user identity" )); + rc = 2; + } + + } return rc; } |