text: /* Core file generic interface routines for BFD.
     Copyright 1990, 1991, 1992, 1993, 1994, 2000, 2001, 2002, 2003, 2005,
     2007 Free Software Foundation, Inc.
     Written by Cygnus Support.
  
     This file is part of BFD, the Binary File Descriptor library.
  
     This program is free software; you can redistribute it and/or modify
     it under the terms of the GNU General Public License as published by
     the Free Software Foundation; either version 3 of the License, or
     (at your option) any later version.
  
     This program is distributed in the hope that it will be useful,
     but WITHOUT ANY WARRANTY; without even the implied warranty of
     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
     GNU General Public License for more details.
  
     You should have received a copy of the GNU General Public License
     along with this program; if not, write to the Free Software
     Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston,
     MA 02110-1301, USA.  */
  
  /*
  SECTION
  	Core files
  
  SUBSECTION
  	Core file functions
  
  DESCRIPTION
  	These are functions pertaining to core files.
  */
  
  #include "sysdep.h"
  #include "bfd.h"
  #include "libbfd.h"
  
  /*
  FUNCTION
  	bfd_core_file_failing_command
  
  SYNOPSIS
  	const char *bfd_core_file_failing_command (bfd *abfd);
  
  DESCRIPTION
  	Return a read-only string explaining which program was running
  	when it failed and produced the core file @var{abfd}.
  
  */
  
  const char *
  bfd_core_file_failing_command (bfd *abfd)
  {
    if (abfd->format != bfd_core)
      {
        bfd_set_error (bfd_error_invalid_operation);
        return NULL;
      }
    return BFD_SEND (abfd, _core_file_failing_command, (abfd));
  }
  
  /*
  FUNCTION
  	bfd_core_file_failing_signal
  
  SYNOPSIS
  	int bfd_core_file_failing_signal (bfd *abfd);
  
  DESCRIPTION
  	Returns the signal number which caused the core dump which
  	generated the file the BFD @var{abfd} is attached to.
  */
  
  int
  bfd_core_file_failing_signal (bfd *abfd)
  {
    if (abfd->format != bfd_core)
      {
        bfd_set_error (bfd_error_invalid_operation);
        return 0;
      }
    return BFD_SEND (abfd, _core_file_failing_signal, (abfd));
  }
  
  /*
  FUNCTION
  	core_file_matches_executable_p
  
  SYNOPSIS
  	bfd_boolean core_file_matches_executable_p
  	  (bfd *core_bfd, bfd *exec_bfd);
  
  DESCRIPTION
  	Return <<TRUE>> if the core file attached to @var{core_bfd}
  	was generated by a run of the executable file attached to
  	@var{exec_bfd}, <<FALSE>> otherwise.
  */
  
  bfd_boolean
  core_file_matches_executable_p (bfd *core_bfd, bfd *exec_bfd)
  {
    if (core_bfd->format != bfd_core || exec_bfd->format != bfd_object)
      {
        bfd_set_error (bfd_error_wrong_format);
        return FALSE;
      }
  
    return BFD_SEND (core_bfd, _core_file_matches_executable_p,
  		   (core_bfd, exec_bfd));
  }
  
  /*
  FUNCTION
          generic_core_file_matches_executable_p
  
  SYNOPSIS
          bfd_boolean generic_core_file_matches_executable_p
            (bfd *core_bfd, bfd *exec_bfd);
  
  DESCRIPTION
          Return TRUE if the core file attached to @var{core_bfd}
          was generated by a run of the executable file attached
          to @var{exec_bfd}.  The match is based on executable
          basenames only.
  
          Note: When not able to determine the core file failing
          command or the executable name, we still return TRUE even
          though we're not sure that core file and executable match.
          This is to avoid generating a false warning in situations
          where we really don't know whether they match or not.
  */
  
  bfd_boolean
  generic_core_file_matches_executable_p (bfd *core_bfd, bfd *exec_bfd)
  {
    char *exec;
    char *core;
    char *last_slash;
  
    if (exec_bfd == NULL || core_bfd == NULL)
      return TRUE;
  
    /* The cast below is to avoid a compiler warning due to the assignment
       of the const char * returned by bfd_core_file_failing_command to a
       non-const char *.  In this case, the assignement does not lead to
       breaking the const, as we're only reading the string.  */
       
    core = (char *) bfd_core_file_failing_command (core_bfd);
    if (core == NULL)
      return TRUE;
  
    exec = bfd_get_filename (exec_bfd);
    if (exec == NULL)
      return TRUE;
  
    last_slash = strrchr (core, '/');
    if (last_slash != NULL)
      core = last_slash + 1;
  
    last_slash = strrchr (exec, '/');
    if (last_slash != NULL)
      exec = last_slash + 1;
    
    return strcmp (exec, core) == 0;
  }
  
  