Resolve the unregistered-CCL-programs-get-garbage-collected problem correctly src/ChangeLog addition: 2009-11-15 Aidan Kehoe <kehoea@parhasard.net> * mule-ccl.c (CCL_CALL_FOR_MAP_INSTRUCTION): Assert that we always have a symbol in this macro. (setup_ccl_program): Ensure we're not allocating unreachable memory in this function; all symbols must have been resolved in a given CCL program before this function is called. (find_ccl_program): New function, return a CCL program with all its symbols resolved if it is valid (possibly allocating memory), Qnil otherwise. (get_ccl_program): New function, exported to other files; call find_ccl_program, and error if it gives nil. (Fccl_program_p): Call find_ccl_program from this function instead of implementing the bulk of it here. (Fccl_execute): Call get_ccl_program instead of implementing the bulk of it here. (Fccl_execute_on_string): Ditto. * mule-ccl.h (Vfont_ccl_encoder_alist): Remove this declaration, it hasn't been used in years. (get_ccl_program): Declare this function. * mule-coding.c (ccl_putprop): Use get_ccl_program on any specified encode or decode CCL program property. (fixed_width_putprop): Ditto. * mule-charset.c (Fmake_charset): Use get_ccl_program on any specified ccl-program. (Fset_charset_ccl_program): Ditto.

/*
 * Copyright (c) 2000, Red Hat, Inc.
 *
 *     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 2 of the License, or
 *     (at your option) any later version.
 *
 *     A copy of the GNU General Public License can be found at
 *     http://www.gnu.org/
 *
 * Written by DJ Delorie <dj@cygnus.com>
 *
 */

/* The purpose of this file is to manage access to files stored on the
   local disk (i.e. "downloading" setup.ini).  Called from netio.cc */

#include <stdio.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <errno.h>
#include "win32.h"
#include "netio.h"
#include "nio-file.h"
#include "resource.h"
#include "msg.h"

NetIO_File::NetIO_File (char *Purl)
  : NetIO (Purl)
{
  struct stat s;
  fd = fopen (path, "rb");
  if (fd)
    {
      stat (path, &s);
      file_size = s.st_size;
    }
  else
    {
      char *err = strerror (errno);
      if (!err)
	err = "(unknown error)";
      note (IDS_ERR_OPEN_READ, path, err);
    }
}

NetIO_File::~NetIO_File ()
{
  if (fd)
    fclose ((FILE *)fd);
}

int
NetIO_File::ok ()
{
  return fd ? 1 : 0;
}

int
NetIO_File::read (char *buf, int nbytes)
{
  return fread (buf, 1, nbytes, (FILE *)fd);
}