diff --git a/base64.c b/base64.c
index 34ebf74..ac76893 100644
--- a/base64.c
+++ b/base64.c
@@ -88,7 +88,7 @@ void base64(unsigned char *out, const unsigned char *in, int len)
   *out = '\0';
 }
 
-int unbase64(char *out, const char *in, int maxlen)
+int unbase64(unsigned char *out, const unsigned char *in, int maxlen)
 /* base 64 to raw bytes in quasi-big-endian order, returning count of bytes */
 /* maxlen limits output buffer size, set to zero to ignore */
 {
diff --git a/base64.h b/base64.h
index b265f49..37ade68 100644
--- a/base64.h
+++ b/base64.h
@@ -20,4 +20,4 @@
 /* base64.h */
 
 void base64(unsigned char *out, const unsigned char *in, int len);
-int unbase64(char *out, const char *in, int maxlen);
+int unbase64(unsigned char *out, const unsigned char *in, int maxlen);
diff --git a/basicauth.c b/basicauth.c
index 1ec9f46..7bc56e6 100644
--- a/basicauth.c
+++ b/basicauth.c
@@ -46,7 +46,7 @@ void make_basicauth()
 	 * Base64 encode the clear text cookie to create the HTTP base64
 	 * authentication cookie
 	 */
-	base64( basicauth, p, strlen( p ) );
+	base64( (unsigned char *)basicauth, (unsigned char *)p, strlen( p ) );
 
 	if( args_info.verbose_flag )
 	{
diff --git a/http.c b/http.c
index c197d25..5216def 100644
--- a/http.c
+++ b/http.c
@@ -45,7 +45,9 @@ void analyze_HTTP()
 	 */
 	while (strncmp( p, "HTTP/", 5) != 0 )
 	{
-		readline();                                                     		p = strtok( buf, " ");                                          	}
+		readline();
+		p = strtok( buf, " ");
+	}
 
 	if (strcmp( p, "HTTP/1.0" ) != 0 && strcmp( p, "HTTP/1.1" ) != 0)
 	{
@@ -65,7 +67,7 @@ void analyze_HTTP()
 			do {
 				readline();
 				if (strncmp( buf, "Proxy-Authenticate: NTLM ", 25) == 0) {
-					if (parse_type2(&buf[25]) < 0)
+					if (parse_type2((unsigned char *)&buf[25]) < 0)
 						exit(1);
 				}
 			} while ( strcmp( buf, "\r\n" ) != 0 );
diff --git a/messages.c b/messages.c
index 692bcfb..c6ecc28 100644
--- a/messages.c
+++ b/messages.c
@@ -33,7 +33,7 @@ void message( char *s, ... )
 	char	buf[1024];
 
 	va_start( ap, s );
-	vsnprintf( buf, sizeof( buf ), s, ap );
+	vsnprintf( (char *)buf, sizeof( buf ), s, ap );
 	va_end( ap );
 
 	if ( i_am_daemon )
diff --git a/ntlm.c b/ntlm.c
index 2210a14..b2a7452 100644
--- a/ntlm.c
+++ b/ntlm.c
@@ -80,7 +80,7 @@ void build_type1() {
 	type1->message_type = NTLM_TYPE_1;
 	type1->flags = NEG_UNICODE | NEG_OEM | REQ_TARGET | NEG_NTLM | NEG_ASIGN | NEG_NTLM2 | NEG_128 | NEG_56 | IE_SETSTHIS;
 
-	base64(ntlm_type1_buf, (unsigned char *)type1, len);
+	base64((unsigned char *)ntlm_type1_buf, (unsigned char *)type1, len);
 
 	free(type1);
 	return;
@@ -98,7 +98,7 @@ int parse_type2(unsigned char *buf)
 		return -1;
 	}
 
-	if (strcmp(t2->signature, "NTLMSSP") != 0) {
+	if (strcmp((const char *)t2->signature, "NTLMSSP") != 0) {
 		message("parse_type2: Signature did not match\n");
 		return -1;
 	}
@@ -223,7 +223,7 @@ void build_type3_response() {
 	for (i = 0; i < strlen(workstation); i++)
 		t3[type3->workstation.offset + i * sp] = workstation[i];
 
-	base64(ntlm_type3_buf, (unsigned char *)type3, len);
+	base64((unsigned char *)ntlm_type3_buf, (unsigned char *)type3, len);
 
 	free(type3);
 	return;
diff --git a/proxytunnel.c b/proxytunnel.c
index 1876498..00fdef2 100755
--- a/proxytunnel.c
+++ b/proxytunnel.c
@@ -152,7 +152,7 @@ void do_daemon()
 	socklen_t		client_len;
 	int			pid = 0;
 	int			sd_client;
-	char			buf[80];
+	char 			buf[80];
 	unsigned char		addr[4];
 
 	if ( ( listen_sd = socket( AF_INET, SOCK_STREAM, 0 ) ) < 0 )
@@ -241,7 +241,7 @@ void do_daemon()
 		}
 
 		memcpy( &addr, &sa_cli.sin_addr.s_addr, 4 );
-		sprintf( buf, "%u.%u.%u.%u", addr[0], addr[1], addr[2], addr[3] );
+		sprintf( (char *) buf, "%u.%u.%u.%u", addr[0], addr[1], addr[2], addr[3] );
 #ifdef CYGWIN
 		message( "Started tunnel pid=%d for connection from %s",
 		      pid, buf );