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-rw-r--r--ares_strcasecmp.c66
1 files changed, 66 insertions, 0 deletions
diff --git a/ares_strcasecmp.c b/ares_strcasecmp.c
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+++ b/ares_strcasecmp.c
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+
+
+/* Copyright 1998 by the Massachusetts Institute of Technology.
+ *
+ * Permission to use, copy, modify, and distribute this
+ * software and its documentation for any purpose and without
+ * fee is hereby granted, provided that the above copyright
+ * notice appear in all copies and that both that copyright
+ * notice and this permission notice appear in supporting
+ * documentation, and that the name of M.I.T. not be used in
+ * advertising or publicity pertaining to distribution of the
+ * software without specific, written prior permission.
+ * M.I.T. makes no representations about the suitability of
+ * this software for any purpose. It is provided "as is"
+ * without express or implied warranty.
+ */
+
+#include "ares_setup.h"
+#include "ares_strcasecmp.h"
+
+#ifndef HAVE_STRCASECMP
+int ares_strcasecmp(const char *a, const char *b)
+{
+#if defined(HAVE_STRCMPI)
+ return strcmpi(a, b);
+#elif defined(HAVE_STRICMP)
+ return stricmp(a, b);
+#else
+ size_t i;
+
+ for (i = 0; i < (size_t)-1; i++) {
+ int c1 = ISUPPER(a[i]) ? tolower(a[i]) : a[i];
+ int c2 = ISUPPER(b[i]) ? tolower(b[i]) : b[i];
+ if (c1 != c2)
+ return c1-c2;
+ if (!c1)
+ break;
+ }
+ return 0;
+#endif
+}
+#endif
+
+#ifndef HAVE_STRNCASECMP
+int ares_strncasecmp(const char *a, const char *b, size_t n)
+{
+#if defined(HAVE_STRNCMPI)
+ return strncmpi(a, b, n);
+#elif defined(HAVE_STRNICMP)
+ return strnicmp(a, b, n);
+#else
+ size_t i;
+
+ for (i = 0; i < n; i++) {
+ int c1 = ISUPPER(a[i]) ? tolower(a[i]) : a[i];
+ int c2 = ISUPPER(b[i]) ? tolower(b[i]) : b[i];
+ if (c1 != c2)
+ return c1-c2;
+ if (!c1)
+ break;
+ }
+ return 0;
+#endif
+}
+#endif
+