kdat/ErrorHandler.cpp

   1 // KDat - a tar-based DAT archiver
   2 // Copyright (C) 2001-2002  Lawrence Widman, kdat@cardiothink.com
   3 //
   4 // This program is free software; you can redistribute it and/or modify
   5 // it under the terms of the GNU General Public License as published by
   6 // the Free Software Foundation; either version 2 of the License, or
   7 // (at your option) any later version.
   8 //
   9 // This program is distributed in the hope that it will be useful,
  10 // but WITHOUT ANY WARRANTY; without even the implied warranty of
  11 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  12 // GNU General Public License for more details.
  13 //
  14 // You should have received a copy of the GNU General Public License
  15 // along with this program; if not, write to the Free Software
  16 // Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
  17
  18 #include <stdio.h>
  19 #include <signal.h>
  20 #include <stdlib.h>
  21 #include <kglobal.h>
  22 #include <qmessagebox.h>
  23 #include <klocale.h>
  24 //#include <kstandarddirs.h>
  25
  26 void error_handler(int err_sig);
  27
  28 /* include the following in main():
  29  signal(SIGHUP, error_handler);
  30  signal(SIGINT, error_handler);
  31  signal(SIGFPE, error_handler);
  32  signal(SIGSEGV, error_handler);
  33  signal(SIGTERM, error_handler);
  34
  35  printf("Error_handler installed\n");
  36 */
  37
  38 // from /usr/include/bits/signum.h:
  39 // #define SIGHUP          1       /* Hangup (POSIX).  */
  40 // #define SIGINT          2       /* Interrupt (ANSI).  */
  41 // #define SIGFPE          8       /* Floating-point exception (ANSI).  */
  42 // #define SIGSEGV         11      /* Segmentation violation (ANSI).  */
  43 // #define SIGTERM         15      /* Termination (ANSI).  */
  44
  45 void error_handler(int err_sig)
  46 {
  47   QString base1a, base1b, base2a, base2b, msg1, msg2, msg3;
  48   int     i;
  49
  50   base1a = i18n( " caught.\nExit the program from File->Quit or do "
  51                  "\"kill -9 <pid>\" if you like.\n"  );
  52   base1b = base1a;  // deep copy
  53
  54   base2a = i18n( "You can dump core by selecting the \"Abort\" button.\n"
  55                  "Please notify the maintainer (see Help->About KDat)." );
  56   base2b = base2a;  // deep copy
  57
  58   msg1 = base1a.append(base2a);
  59   msg2 = base1b.append("It is strongly recommended to do this!\n");
  60   msg2 = msg2.append(base2b);
  61   msg3 = i18n( "An Error Signal was Received" );
  62
  63   switch (err_sig) {
  64    case SIGHUP:
  65      fprintf(stderr, "kdat: SIGHUP signal (\"Hangup (POSIX)\") caught\n");
  66      i = QMessageBox::critical( (QWidget *)NULL,
  67         msg3,
  68         i18n( "SIGHUP signal (\"Hangup (POSIX)\")" ).append( msg1 ),
  69         QMessageBox::Ignore, QMessageBox::Abort, QMessageBox::NoButton);
  70      if( i == QMessageBox::Abort ){ abort(); }
  71      break;
  72   case SIGINT:
  73      fprintf(stderr, "kdat: SIGINT signal (\"Interrupt (ANSI)\") caught\n");
  74      i = QMessageBox::critical( (QWidget *)NULL,
  75          msg3,
  76          i18n( "SIGINT signal (\"Interrupt (ANSI)\")" ).append( msg1 ),
  77          QMessageBox::Ignore, QMessageBox::Abort, QMessageBox::NoButton);
  78      if( i == QMessageBox::Abort ){ abort(); }
  79      break;
  80   case SIGFPE:
  81     fprintf(stderr, "kdat: SIGFPE signal (\"Floating-point exception (ANSI)\") caught\n");
  82     i = QMessageBox::critical( (QWidget *)NULL,
  83         msg3,
  84         i18n("SIGFPE signal (\"Floating-point exception (ANSI)\")").append (msg2),
  85          QMessageBox::Ignore, QMessageBox::Abort, QMessageBox::NoButton);
  86     if( i == QMessageBox::Abort ){ abort(); }
  87     break;
  88   case SIGSEGV:
  89     fprintf(stderr, "kdat: SIGSEGV signal (\"Segmentation violation (ANSI)\") caught\n");
  90     i = QMessageBox::critical( (QWidget *)NULL,
  91           msg3,
  92           i18n( "SIGSEGV signal (\"Segmentation violation (ANSI)\")").append(msg2),
  93           /* button1,           button2 */
  94           QMessageBox::Ignore, QMessageBox::Abort, QMessageBox::NoButton);
  95     if( i == QMessageBox::Abort ){ abort(); }
  96     break;
  97   case SIGTERM:
  98     fprintf(stderr, "kdat: SIGTERM signal (\"Termination (ANSI)\") caught\n");
  99     i = QMessageBox::critical( (QWidget *)NULL,
 100         msg3,
 101         i18n( "SIGTERM signal (\"Termination (ANSI)\")").append(msg1),
 102           QMessageBox::Ignore, QMessageBox::Abort, QMessageBox::NoButton);
 103     if( i == QMessageBox::Abort ){ abort(); }
 104     break;
 105   }
 106
 107         // Deinstall the signal handlers
 108         // signal(SIGHUP, SIG_DFL);
 109         // signal(SIGINT, SIG_DFL);
 110         // signal(SIGFPE, SIG_DFL);
 111         // signal(SIGSEGV, SIG_DFL);
 112         // signal(SIGTERM, SIG_DFL);
 113 }