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-rw-r--r--lib/sh/strcasecmp.c84
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diff --git a/lib/sh/strcasecmp.c b/lib/sh/strcasecmp.c
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+/* strcasecmp.c - functions for case-insensitive string comparison. */
+
+/* Copyright (C) 1995 Free Software Foundation, Inc.
+
+ This file is part of GNU Bash, the Bourne Again SHell.
+
+ Bash 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 3 of the License, or
+ (at your option) any later version.
+
+ Bash 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 Bash. If not, see <http://www.gnu.org/licenses/>.
+*/
+
+#include <config.h>
+
+#if !defined (HAVE_STRCASECMP)
+
+#include <stdc.h>
+#include <bashansi.h>
+#include <chartypes.h>
+
+/* Compare at most COUNT characters from string1 to string2. Case
+ doesn't matter. */
+int
+strncasecmp (string1, string2, count)
+ const char *string1;
+ const char *string2;
+ size_t count;
+{
+ register const char *s1;
+ register const char *s2;
+ register int r;
+
+ if (count <= 0 || (string1 == string2))
+ return 0;
+
+ s1 = string1;
+ s2 = string2;
+ do
+ {
+ if ((r = TOLOWER ((unsigned char) *s1) - TOLOWER ((unsigned char) *s2)) != 0)
+ return r;
+ if (*s1++ == '\0')
+ break;
+ s2++;
+ }
+ while (--count != 0);
+
+ return (0);
+}
+
+/* strcmp (), but caseless. */
+int
+strcasecmp (string1, string2)
+ const char *string1;
+ const char *string2;
+{
+ register const char *s1;
+ register const char *s2;
+ register int r;
+
+ s1 = string1;
+ s2 = string2;
+
+ if (s1 == s2)
+ return (0);
+
+ while ((r = TOLOWER ((unsigned char)*s1) - TOLOWER ((unsigned char)*s2)) == 0)
+ {
+ if (*s1++ == '\0')
+ return 0;
+ s2++;
+ }
+
+ return (r);
+}
+#endif /* !HAVE_STRCASECMP */