$NetBSD: patch-ac,v 1.5 2013/09/10 14:28:14 joerg Exp $

--- dtcpclient.c.orig	2006-05-25 16:36:21.000000000 +0000
+++ dtcpclient.c
@@ -72,10 +72,12 @@
 #define PREFIX		"/usr/local"
 #endif
 
-#define PIDFILE		_PATH_VARRUN "/dtcpclient.pid"
-#define PASSWDFILE	PREFIX "/etc/dtcpclient.auth"
-#define SCRIPTFLIE	PREFIX "/etc/dtcpclient.script"
+#define PIDFILE		VARBASE "/run/dtcpclient.pid"
+#define PASSWDFILE	SYSCONFDIR "/dtcpclient.auth"
+#define SCRIPTFLIE	PREFIX "/sbin/dtcpclient-script"
 
+#undef FALSE
+#undef TRUE
 typedef enum {
 	FALSE = 0,
 	TRUE = 1
@@ -173,9 +175,9 @@ authenticate(char *user, char *challenge
 	int i;
 
 	MD5Init(&ctx);
-	MD5Update(&ctx, user, strlen(user));
-	MD5Update(&ctx, challenge, strlen(challenge));
-	MD5Update(&ctx, pass, strlen(pass));
+	MD5Update(&ctx, (unsigned char *)user, strlen(user));
+	MD5Update(&ctx, (unsigned char *)challenge, strlen(challenge));
+	MD5Update(&ctx, (unsigned char *)pass, strlen(pass));
 	MD5Final(digest, &ctx);
 	for (i = 0;  i < 16;  i++) {
 		ascii_digest[i + i] = hex[digest[i] >> 4];
@@ -512,8 +514,8 @@ invoke_script(const char *state, const c
 	if (verbose) {
 		strncpy(buf, "calling:", sizeof(buf));
 		for (argc = 0; argv[argc] != NULL; ++argc) {
-			strncat(buf, " ", sizeof(buf));
-			strncat(buf, argv[argc], sizeof(buf));
+			strncat(buf, " ", sizeof(buf) - 1);
+			strncat(buf, argv[argc], sizeof(buf) - 1);
 		}
 		logmsg(LOG_NOTICE, "%s", buf);
 	}