/*

 * Copyright (C) 2011 Karel Zak <kzak@redhat.com>

 *

 * This file may be redistributed under the terms of the

 * GNU Lesser General Public License.

 */

#include <string.h>

#include "match.h"

#include "cctype.h"

/*

 * match_fstype:

 * @type: filesystem type

 * @pattern: filesystem name or comma delimited list of names

 *

 * The @pattern list of filesystem can be prefixed with a global

 * "no" prefix to invert matching of the whole list. The "no" could

 * also be used for individual items in the @pattern list. So,

 * "nofoo,bar" has the same meaning as "nofoo,nobar".

 */

int match_fstype(const char *type, const char *pattern)

{

  int no = 0;   /* negated types list */

  int len;

  const char *p;

  if (!pattern && !type)

    return 1;

  if (!pattern)

    return 0;

  if (!strncmp(pattern, "no", 2)) {

    no = 1;

    pattern += 2;

  }

  /* Does type occur in types, separated by commas? */

  len = strlen(type);

  p = pattern;

  while(1) {

    if (!strncmp(p, "no", 2) && !c_strncasecmp(p+2, type, len) &&

        (p[len+2] == 0 || p[len+2] == ','))

      return 0;

    if (c_strncasecmp(p, type, len) == 0 && (p[len] == 0 || p[len] == ','))

      return !no;

    p = strchr(p,',');

    if (!p)

      break;

    p++;

  }

  return no;

}