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/* $Id$ */
/*
 * Copyright (c) 2004 demon <demon@vhost.dyndns.org>
 *
 * Permission to use, copy, modify, and distribute this software for any
 * purpose with or without fee is hereby granted, provided that the above
 * copyright notice and this permission notice appear in all copies.
 *
 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
 */

#include <stdio.h>
#include <stdlib.h>
#include <err.h>
#include "tgebdat.h"

static void rhdr_au(struct au *, FILE *);	/* read header */
static void rent_au(struct au *, FILE *);	/* read entries */

struct au *
tgeb_read_au(char *file)
{
	struct au *au;
	FILE   *fd;

	if (!(fd = fopen(file, "r")))
		err(1, "fopen %s", file);

	if (!(au = (struct au *) malloc(sizeof(struct au))))
		err(1, "malloc");

	rhdr_au(au, fd);
	rent_au(au, fd);

	fclose(fd);
	return au;
}

void
rhdr_au(struct au * au, FILE * fd)
{
	fread(&au->l, sizeof(au->l), 1, fd);
	fread(&au->q, sizeof(au->q), 1, fd);
	return;
}

void
rent_au(struct au * au, FILE * fd)
{
	int     i, j;

	if (!(au->d = (struct au_d *)
	      calloc(au->l, sizeof(struct au_d))))
		err(1, "malloc");
	if (!(au->max = (unsigned short *)
	      calloc(au->q, sizeof(unsigned short))))
		err(1, "malloc");

	fseek(fd, 4, SEEK_SET);
	for (i = 0; i < au->l; i++) {
		au->d[i].id = (unsigned short *)
			calloc(au->q, sizeof(unsigned short));
		for (j = 0; j < au->q; j++) {
			fread(&au->d[i].id[j], sizeof(au->d[i].id[j]), 1, fd);
			if (au->d[i].id[j] > au->max[j])
				au->max[j] = au->d[i].id[j];
		}
	}

	for (i = 0; i < au->l; i++) {
		_tgeb_sread(&au->d[i].land, fd);
		_tgeb_sread(&au->d[i].dial, fd);
	}
	return;
}