diff -ur --minimal snort-1.9.1.orig/src/preprocessors/spp_http_decode.c snort-1.9.1/src/preprocessors/spp_http_decode.c
--- snort-1.9.1.orig/src/preprocessors/spp_http_decode.c	2003-02-23 22:46:04.000000000 +0000
+++ snort-1.9.1/src/preprocessors/spp_http_decode.c	2003-03-26 22:36:33.000000000 +0000
@@ -444,11 +444,11 @@
     psize = (u_int16_t) (p->dsize);
     
     /* first skip past the HTTP method */
-    while(index < end && !lookup_whitespace[(u_int)(*index)])
+    while(index < end && !lookup_whitespace[(u_char)(*index)])
 	index++;
     
     /* skip over whitespace seperator */
-    while(index < end && lookup_whitespace[(u_int)(*index)])
+    while(index < end && lookup_whitespace[(u_char)(*index)])
 	index++;
     
     /* evilness check */
@@ -562,8 +562,8 @@
 					"Double hex encoding received\n"););
 	    }
 
-	    hex1=lookup_hexvalue[(u_int)(*(index+1))];
-	    hex2=lookup_hexvalue[(u_int)(*(index+2))];
+	    hex1=lookup_hexvalue[(u_char)(*(index+1))];
+	    hex2=lookup_hexvalue[(u_char)(*(index+2))];
 
 	    if(hex1 != -1 && hex2 != -1)
 	    {
@@ -612,7 +612,7 @@
 	    }
 
 	}
-	else if(lookup_whitespace[(u_int)(*index)])
+	else if(lookup_whitespace[(u_char)(*index)])
 	{
 	    /* we've reached the delimiting whitespace */
 	    /* UriBufs[0].http_version = (u_int8_t *) index; */
@@ -629,7 +629,7 @@
 		while(index < end &&
 		      ((cur - (char *) UriBufs[0].uri) < URI_LENGTH))
 		{
-		    if(lookup_whitespace[(u_int)(*index)])
+		    if(lookup_whitespace[(u_char)(*index)])
 		    {
 			/* we've reached the delimiting whitespace */
 			/* Time to get HTTP version? */