Provide a version of stricmp() and strnicmp() for Mac OS, which doesn't have

its own.  These are from NetBSD's libc, and have a standard (now 3-clause)
Berkeley licence.

Also provide a definition of DWORD and a better definition of BYTE.

[originally from svn r2449]

mac/mac.h

@@ -85,6 +85,9 @@ extern OSErr get_session_dir(Boolean makeit, short *pVRefNum, long *pDirID);
 extern void *open_settings_r_fsp(FSSpec *);
 /* from macucs.c */
 extern void init_ucs(void);
+/* from mtcpnet.c */
+extern OSErr mactcp_init(void);
+extern void mactcp_shutdown(void);
 
 #endif
 

mac/stricmp.c

@@ -0,0 +1,82 @@
+
+#include "putty.h"
+
+#define strcasecmp stricmp
+#define strncasecmp strnicmp
+#define _DIAGASSERT(e) /* nothing */
+
+/*
+ * Copyright (c) 1987, 1993
+ *	The Regents of the University of California.  All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. Neither the name of the University nor the names of its contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ *
+ * From NetBSD: strcasecmp.c,v 1.12 2000/01/22 22:19:20 mycroft Exp
+ */
+
+#include <ctype.h>
+
+typedef unsigned char u_char;
+
+int
+strcasecmp(s1, s2)
+	const char *s1, *s2;
+{
+	const u_char *us1 = (const u_char *)s1,
+			*us2 = (const u_char *)s2;
+
+	_DIAGASSERT(s1 != NULL);
+	_DIAGASSERT(s2 != NULL);
+
+	while (tolower(*us1) == tolower(*us2++))
+		if (*us1++ == '\0')
+			return (0);
+	return (tolower(*us1) - tolower(*--us2));
+}
+
+int
+strncasecmp(s1, s2, n)
+	const char *s1, *s2;
+	size_t n;
+{
+
+	_DIAGASSERT(s1 != NULL);
+	_DIAGASSERT(s2 != NULL);
+	if (s1 == NULL || s2 == NULL)
+		return (0);
+
+	if (n != 0) {
+		const u_char *us1 = (const u_char *)s1,
+				*us2 = (const u_char *)s2;
+
+		do {
+			if (tolower(*us1) != tolower(*us2++))
+				return (tolower(*us1) - tolower(*--us2));
+			if (*us1++ == '\0')
+				break;
+		} while (--n != 0);
+	}
+	return (0);
+}