/* Copyright (C) 1991,1992,1995,1996,1997,2001,2002, 2004

   Free Software Foundation, Inc.

   This file is part of the GNU C Library.

   The GNU C Library is free software; you can redistribute it and/or

   modify it under the terms of the GNU Lesser General Public

   License as published by the Free Software Foundation; either

   version 2.1 of the License, or (at your option) any later version.

   The GNU C Library is distributed in the hope that it will be useful,

   but WITHOUT ANY WARRANTY; without even the implied warranty of

   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU

   Lesser General Public License for more details.

   You should have received a copy of the GNU Lesser General Public

   License along with the GNU C Library; if not, write to the Free

   Software Foundation, Inc., 51 Franklin Street, Fifth Floor,

   Boston, MA  02110-1301  USA */

/*

 * August 2006. For Gawk: Borrowed from GLIBC to replace BSD licensed version.

 * DON'T steal this for your own code, just go to the GLIBC sources.

 * This version hacked unmercifully.

 */

/* Compare S1 and S2, ignoring case, returning less than, equal to or

   greater than zero if S1 is lexicographically less than,

   equal to or greater than S2.  */

int

strcasecmp (s1, s2)

     const char *s1;

     const char *s2;

{

  const unsigned char *p1 = (const unsigned char *) s1;

  const unsigned char *p2 = (const unsigned char *) s2;

  int result;

  if (p1 == p2)

    return 0;

  while ((result = tolower (*p1) - tolower (*p2++)) == 0)

    if (*p1++ == '\0')

      break;

  return result;

}

/* Compare at most N characters of two strings without taking care for

   the case.

   Copyright (C) 1992, 1996, 1997, 2001, 2004 Free Software Foundation, Inc.

   This file is part of the GNU C Library.

   The GNU C Library is free software; you can redistribute it and/or

   modify it under the terms of the GNU Lesser General Public

   License as published by the Free Software Foundation; either

   version 2.1 of the License, or (at your option) any later version.

   The GNU C Library is distributed in the hope that it will be useful,

   but WITHOUT ANY WARRANTY; without even the implied warranty of

   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU

   Lesser General Public License for more details.

   You should have received a copy of the GNU Lesser General Public

   License along with the GNU C Library; if not, write to the Free

   Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,

   MA 02110-1335, USA 

*/

/*

 * August 2006, for gawk, same comment applies. See strncase.c

 * in the GLIBC sources.

 */

/* Compare no more than N characters of S1 and S2,

   ignoring case, returning less than, equal to or

   greater than zero if S1 is lexicographically less

   than, equal to or greater than S2.  */

int

strncasecmp (s1, s2, n)

     const char *s1;

     const char *s2;

     size_t n;

{

  const unsigned char *p1 = (const unsigned char *) s1;

  const unsigned char *p2 = (const unsigned char *) s2;

  int result;

  if (p1 == p2 || n == 0)

    return 0;

  while ((result = tolower (*p1) - tolower (*p2++)) == 0)

    if (*p1++ == '\0' || --n == 0)

      break;

  return result;

}