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- /* Copyright (C) 1991, 1992 Free Software Foundation, Inc.
-
- This program is free software; you can redistribute it and/or modify
- it under the terms of the GNU General Public License as published by
- the Free Software Foundation; either version 2, or (at your option)
- any later version.
-
- This program 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 General Public License for more details.
-
- You should have received a copy of the GNU General Public License
- along with this program; if not, write to the Free Software
- Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
-
- #ifdef HAVE_CONFIG_H
- # include <config.h>
- #endif
-
- #include <string.h>
- #include <ctype.h>
-
- /* Compare S1 and S2, ignoring case, returning less than, equal to or
- greater than zero if S1 is lexiographically less than,
- equal to or greater than S2. */
- int
- strcasecmp (s1, s2)
- const char *s1;
- const char *s2;
- {
- register const unsigned char *p1 = (const unsigned char *) s1;
- register const unsigned char *p2 = (const unsigned char *) s2;
- unsigned char c1, c2;
-
- if (p1 == p2)
- return 0;
-
- do
- {
- c1 = tolower (*p1++);
- c2 = tolower (*p2++);
- if (c1 == '\0')
- break;
- }
- while (c1 == c2);
-
- return c1 - c2;
- }
-