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/*
* $Id: filter.c,v 1.2 2000-08-12 12:01:19 geert Exp $
*
* Linux Zorro Utilities -- Device Filtering
*
* Copyright (C) 1998--2000 Geert Uytterhoeven
*
* Can be freely distributed and used under the terms of the GNU GPL.
*/
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include "zorroutils.h"
void
filter_init(struct zorro_filter *f)
{
f->slot = -1;
f->manuf = f->prod = f->epc = -1;
}
/* Slot filter syntax: [slot] */
char *
filter_parse_slot(struct zorro_filter *f, char *str)
{
char *e;
if (str[0] && strcmp(str, "*"))
{
long int x = strtol(str, &e, 16);
if ((e && *e) || (x < 0 || x >= 0xff))
return "Invalid slot number";
f->slot = x;
}
return NULL;
}
/* ID filter syntax: [manuf]:[prod]:[epc] */
char *
filter_parse_id(struct zorro_filter *f, char *str)
{
char *s1, *s2, *e;
if (!*str)
return NULL;
s1 = strchr(str, ':');
if (!s1)
return "':' expected";
*s1++ = 0;
s2 = strchr(s1, ':');
if (s2)
*s2++ = 0;
if (str[0] && strcmp(str, "*"))
{
long int x = strtol(str, &e, 16);
if ((e && *e) || (x < 0 || x >= 0xffff))
return "Invalid manufacturer ID";
f->manuf = x;
}
if (s1[0] && strcmp(s1, "*"))
{
long int x = strtol(s1, &e, 16);
if ((e && *e) || (x < 0 || x >= 0xff))
return "Invalid product ID";
f->prod = x;
}
if (s2 && s2[0] && strcmp(s2, "*"))
{
long int x = strtol(s2, &e, 16);
if ((e && *e) || (x < 0 || x >= 0xff))
return "Invalid extended product ID";
f->epc = x;
}
return NULL;
}
int
filter_match(struct zorro_filter *f, byte slot, word manuf, byte prod, byte epc)
{
if ((f->slot >= 0 && f->slot != slot) ||
(f->manuf >= 0 && f->manuf != manuf) ||
(f->prod >= 0 && f->prod != prod) ||
(f->epc >= 0 && f->epc != epc))
return 0;
return 1;
}
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