diff -Naur spectranet-TNFSD-2020-10-19/tnfs/tnfsd/config.h spectranet-TNFSD-2020-10-19.patched/tnfs/tnfsd/config.h
--- spectranet-TNFSD-2020-10-19/tnfs/tnfsd/config.h	2020-09-23 14:06:09.000000000 -0400
+++ spectranet-TNFSD-2020-10-19.patched/tnfs/tnfsd/config.h	2022-08-18 17:20:04.008064003 -0400
@@ -28,7 +28,6 @@
 #define MAX_DHND_PER_CONN 8	/* max open directories per client */
 #define MAX_CLIENTS	256	/* maximum number of UDP clients */
 #define MAX_CLIENTS_PER_IP 8 /* maximum number of UDP clients from single IP */
-#define MAX_TCP_CONN	256	/* Maximum number of TCP clients */
 #define TNFS_HEADERSZ	4	/* minimum header size */
 #define TNFS_MAX_PAYLOAD (MAXMSGSZ - TNFS_HEADERSZ - 1) /* Maximum usuable payload in a UDP datagram (-1 for status byte) */
 #define MAX_TNFSPATH	256	/* maximum path length */
diff -Naur spectranet-TNFSD-2020-10-19/tnfs/tnfsd/datagram.c spectranet-TNFSD-2020-10-19.patched/tnfs/tnfsd/datagram.c
--- spectranet-TNFSD-2020-10-19/tnfs/tnfsd/datagram.c	2020-09-23 14:06:09.000000000 -0400
+++ spectranet-TNFSD-2020-10-19.patched/tnfs/tnfsd/datagram.c	2022-08-18 17:19:22.440374999 -0400
@@ -50,7 +50,6 @@
 #include "tnfs_file.h"
 
 int sockfd;		 /* UDP global socket file descriptor */
-int tcplistenfd; /* TCP listening socket file descriptor */
 
 tnfs_cmdfunc dircmd[NUM_DIRCMDS] =
 	{&tnfs_opendir, &tnfs_readdir, &tnfs_closedir,
@@ -140,24 +139,6 @@
 
 	if (bind(sockfd, (struct sockaddr *)&servaddr, sizeof(servaddr)) < 0)
 		die("Unable to bind");
-
-	/* Create the TCP socket */
-	tcplistenfd = socket(AF_INET, SOCK_STREAM, 0);
-	if (tcplistenfd < 0)
-	{
-		die("Unable to create TCP socket");
-	}
-
-	memset(&servaddr, 0, sizeof(servaddr));
-	servaddr.sin_family = AF_INET;
-	servaddr.sin_addr.s_addr = htons(INADDR_ANY);
-	servaddr.sin_port = htons(TNFSD_PORT);
-	if (bind(tcplistenfd, (struct sockaddr *)&servaddr,
-			 sizeof(servaddr)) < 0)
-	{
-		die("Unable to bind TCP socket");
-	}
-	listen(tcplistenfd, 5);
 }
 
 void tnfs_mainloop()
@@ -165,25 +146,13 @@
 	int readyfds, i;
 	fd_set fdset;
 	fd_set errfdset;
-	int tcpsocks[MAX_TCP_CONN];
-
-	memset(&tcpsocks, 0, sizeof(tcpsocks));
 
 	while (1)
 	{
 		FD_ZERO(&fdset);
 
-		/* add UDP socket and TCP listen socket to fdset */
+		/* add UDP socket socket to fdset */
 		FD_SET(sockfd, &fdset);
-		FD_SET(tcplistenfd, &fdset);
-
-		for (i = 0; i < MAX_TCP_CONN; i++)
-		{
-			if (tcpsocks[i])
-			{
-				FD_SET(tcpsocks[i], &fdset);
-			}
-		}
 
 		FD_COPY(&fdset, &errfdset);
 		if ((readyfds = select(FD_SETSIZE, &fdset, NULL, &errfdset, NULL)) != 0)
@@ -199,53 +168,8 @@
 			{
 				tnfs_handle_udpmsg();
 			}
-			/* Incoming TCP connection? */
-			else if (FD_ISSET(tcplistenfd, &fdset))
-			{
-				tcp_accept(&tcpsocks[0]);
-			}
-			else
-			{
-				for (i = 0; i < MAX_TCP_CONN; i++)
-				{
-					if (tcpsocks[i])
-					{
-						if (FD_ISSET(tcpsocks[i], &fdset))
-						{
-							tnfs_handle_tcpmsg(tcpsocks[i]);
-						}
-					}
-				}
-			}
-		}
-	}
-}
-
-void tcp_accept(int *socklist)
-{
-	int acc_fd, i;
-	struct sockaddr_in cli_addr;
-	socklen_t cli_len = sizeof(cli_addr);
-	int *fdptr;
-
-	acc_fd = accept(tcplistenfd, (struct sockaddr *)&cli_addr, &cli_len);
-	if (acc_fd < 1)
-	{
-		fprintf(stderr, "WARNING: unable to accept TCP connection\n");
-		return;
-	}
-
-	fdptr = socklist;
-	for (i = 0; i < MAX_TCP_CONN; i++)
-	{
-		if (*fdptr == 0)
-		{
-			*fdptr = acc_fd;
-			return;
 		}
 	}
-
-	/* tell the client 'too many connections' */
 }
 
 void tnfs_handle_udpmsg()
@@ -273,15 +197,6 @@
 	*(rxbuf + rxbytes) = 0;
 }
 
-void tnfs_handle_tcpmsg(int cli_fd)
-{
-	char buf[255];
-	int sz;
-
-	sz = read(cli_fd, buf, sizeof(buf));
-	printf("DEBUG: rx of tcpmsg: %d bytes: %s\n", sz, buf);
-}
-
 void tnfs_decode(struct sockaddr_in *cliaddr, int rxbytes, unsigned char *rxbuf)
 {
 	Header hdr;
diff -Naur spectranet-TNFSD-2020-10-19/tnfs/tnfsd/datagram.h spectranet-TNFSD-2020-10-19.patched/tnfs/tnfsd/datagram.h
--- spectranet-TNFSD-2020-10-19/tnfs/tnfsd/datagram.h	2020-09-23 14:06:09.000000000 -0400
+++ spectranet-TNFSD-2020-10-19.patched/tnfs/tnfsd/datagram.h	2022-08-18 17:20:12.070197634 -0400
@@ -51,8 +51,6 @@
 void tnfs_sockinit();
 void tnfs_mainloop();
 void tnfs_handle_udpmsg();
-void tcp_accept(int *fdlist);
-void tnfs_handle_tcpmsg(int cli_fd);
 void tnfs_decode(struct sockaddr_in *cliaddr, 
 		int rxbytes, unsigned char *rxbuf);
 void tnfs_badcommand(Header *hdr, Session *sess);
diff -Naur spectranet-TNFSD-2020-10-19/tnfs/tnfsd/tnfs.h spectranet-TNFSD-2020-10-19.patched/tnfs/tnfsd/tnfs.h
--- spectranet-TNFSD-2020-10-19/tnfs/tnfsd/tnfs.h	2020-09-23 14:06:09.000000000 -0400
+++ spectranet-TNFSD-2020-10-19.patched/tnfs/tnfsd/tnfs.h	2022-08-18 17:20:22.625372592 -0400
@@ -134,7 +134,6 @@
 #endif
 	int lastmsgsz;			/* last message's size inc. hdr */
 	uint8_t lastseqno;		/* last sequence number */
-	uint8_t isTCP;			/* uses the TCP transport */
 } Session;
 
 typedef struct _header