#if !defined(lint) && !defined(DOS)
static char rcsid[] = "$Id: readfile.c 237 2006-11-16 04:08:15Z mikes@u.washington.edu $";
#endif

/*
 * ========================================================================
 * Copyright 2006 University of Washington
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * ========================================================================
 */

#include "../pith/headers.h"

#include "../pith/store.h"

#include "readfile.h"


/*----------------------------------------------------------------------
    Read whole file into memory

  Args: filename -- path name of file to read

  Result: Returns pointer to malloced memory with the contents of the file
          or NULL

This won't work very well if the file has NULLs in it.
 ----*/
char *
read_file(char *filename, int so_get_flags)
{
    STORE_S *in_file = NULL, *out_store = NULL;
    unsigned char c;
    char *return_text = NULL;

    if((in_file = so_get(FileStar, filename, so_get_flags | READ_ACCESS))){


	if(!(out_store = so_get(CharStar, NULL, EDIT_ACCESS))){
	    so_give(&in_file);
	    return NULL;
	}

	/*
	 * We're just using the READ_FROM_LOCALE flag to translate
	 * to UTF-8.
	 */
	while(so_readc(&c, in_file))
	  so_writec(c, out_store);

	if(in_file)
	  so_give(&in_file);

	if(out_store){
	    return_text = (char *) so_text(out_store);
	    /* avoid freeing this */
	    if(out_store->txt)
	      out_store->txt = NULL;

	    so_give(&out_store);
	}
    }

    return(return_text);
}
