diff -Nrup cvs-1.12.12.orig/src/server.c cvs-1.12.12/src/server.c
--- cvs-1.12.12.orig/src/server.c	2005-04-14 14:13:29.000000000 +0000
+++ cvs-1.12.12/src/server.c	2006-08-08 00:29:05.000000000 +0000
@@ -5843,6 +5843,79 @@ struct request requests[] =
 /*
  * This server request is not ignored by the secondary.
  */
+
+/* Hack by Robin H. Johnson <robbat2@gentoo.org>.
+ * Allow the server ENV to specify what request types are to be ignored.
+ */
+
+static char blocked_requests[BUFSIZ] = "";
+
+#ifdef EBUG
+
+
+#define DBG_FILE "/tmp/cvs-debug"
+FILE *debuglog = NULL;
+#define DBG(fmt, args...) \
+	fprintf(debuglog, "debug: " fmt "\n", ## args)
+#else
+#define DBG(fmt, args...)
+#endif
+
+static void build_blocked_requests() {
+	char *tmp = getenv("CVS_BLOCK_REQUESTS");
+	
+	if (tmp != NULL && strlen(tmp) > 0) {
+
+		// split it to get the value
+		tmp = strstr(tmp, "=");
+
+		// if it is defined and empty, just return.
+		if(tmp == NULL || strlen(tmp) <= 1)
+			return;
+
+		//set the seperator to be a space, for searching reasons
+		*tmp = ' ';
+
+		// move to our custom buffer
+		strncat(blocked_requests, tmp, sizeof(blocked_requests)-strlen(blocked_requests));
+
+		//add a space on the end as well for searching
+		strncat(blocked_requests, " ", sizeof(blocked_requests)-strlen(blocked_requests));
+
+	}
+#ifdef EBUG
+	if ((debuglog = fopen(DBG_FILE, "a+")) == NULL)
+		debuglog = stderr;
+#endif
+	DBG("blocklist=%s\n", blocked_requests ? blocked_requests : "NULL");
+
+	// now blocked_requests contains the list of every request that we do not
+	// want to serve
+}
+
+// returns 0 if we should serve this request
+// use as if(checker(FOO)) continue;
+static int serve_valid_requests_checker(char *reqname) {
+	char needle[BUFSIZ] = " ";
+	char *tmp;
+
+	if(strlen(blocked_requests)) < 1))
+		return 0;
+
+	// we want to look for ' 'reqname' '
+	snprintf(needle, sizeof(needle), " %s ", reqname);
+
+	// now do the search
+	tmp = strstr(blocked_requests, needle);
+	DBG("checking request='%s' result=%d\n", reqname, tmp != NULL);
+
+	if (tmp != NULL)
+		return 1;
+
+	return 0;
+	
+}
+
 static void
 serve_valid_requests (char *arg)
 {
@@ -5860,12 +5933,16 @@ serve_valid_requests (char *arg)
 #endif /* PROXY_SUPPORT */
        )
 	return;
+	
+    build_blocked_requests();
 
     buf_output0 (buf_to_net, "Valid-requests");
     for (rq = requests; rq->name != NULL; rq++)
     {
 	if (rq->func != NULL)
 	{
+		if(serve_valid_requests_checker(rq->name)) 
+			continue;
 	    buf_append_char (buf_to_net, ' ');
 	    buf_output0 (buf_to_net, rq->name);
 	}