diff -Naur busybox.orig/include/applets.h busybox/include/applets.h
--- busybox.orig/include/applets.h	2008-02-27 17:46:30 +0000
+++ busybox/include/applets.h	2008-03-04 23:43:37 +0000
@@ -356,6 +356,7 @@
 #if ENABLE_FEATURE_TFTP_GET || ENABLE_FEATURE_TFTP_PUT
 USE_TFTP(APPLET(tftp, _BB_DIR_USR_BIN, _BB_SUID_NEVER))
 #endif
+USE_TFTPD(APPLET(tftpd, _BB_DIR_USR_SBIN, _BB_SUID_NEVER))
 USE_TIME(APPLET(time, _BB_DIR_USR_BIN, _BB_SUID_NEVER))
 USE_TOP(APPLET(top, _BB_DIR_USR_BIN, _BB_SUID_NEVER))
 USE_TOUCH(APPLET_NOFORK(touch, touch, _BB_DIR_BIN, _BB_SUID_NEVER, touch))
diff -Naur busybox.orig/include/usage.h busybox/include/usage.h
--- busybox.orig/include/usage.h	2008-02-27 17:46:30 +0000
+++ busybox/include/usage.h	2008-03-04 23:43:37 +0000
@@ -3916,6 +3916,13 @@
 	USE_FEATURE_TFTP_BLOCKSIZE( \
        "\n	-b SIZE	Transfer blocks of SIZE octets" \
 	)
+
+#define tftpd_trivial_usage
+#define tftpd_full_usage \
+       "Trivial File Transfer Protocol Daemon" \
+       "\n\nExample:" \
+       "\n	udpsvd -E 0 69 softlimit -m 99999 tftpd"
+
 #define time_trivial_usage \
        "[OPTION]... COMMAND [ARGS...]"
 #define time_full_usage \
diff -Naur busybox.orig/networking/Config.in busybox/networking/Config.in
--- busybox.orig/networking/Config.in	2008-02-27 13:19:56 +0000
+++ busybox/networking/Config.in	2008-03-04 23:43:37 +0000
@@ -806,6 +806,12 @@
 	  into problems with tftp as the protocol doesn't help you much when
 	  you run into problems.
 
+config TFTPD
+	bool "tftpd"
+	default n
+	help
+	  Bare bones TFTP Daemon.
+
 config TRACEROUTE
 	bool "traceroute"
 	default n
diff -Naur busybox.orig/networking/Kbuild busybox/networking/Kbuild
--- busybox.orig/networking/Kbuild	2008-02-26 23:33:24 +0000
+++ busybox/networking/Kbuild	2008-03-04 23:43:37 +0000
@@ -35,6 +35,7 @@
 lib-$(CONFIG_TELNET)       += telnet.o
 lib-$(CONFIG_TELNETD)      += telnetd.o
 lib-$(CONFIG_TFTP)         += tftp.o
+lib-$(CONFIG_TFTPD)        += tftpd.o
 lib-$(CONFIG_TRACEROUTE)   += traceroute.o
 lib-$(CONFIG_VCONFIG)      += vconfig.o
 lib-$(CONFIG_WGET)         += wget.o
diff -Naur busybox.orig/networking/tftpd.c busybox/networking/tftpd.c
--- busybox.orig/networking/tftpd.c	1970-01-01 00:00:00 +0000
+++ busybox/networking/tftpd.c	2008-03-04 23:43:37 +0000
@@ -0,0 +1,88 @@
+/* vi: set sw=4 ts=4: */
+/*
+ * bare bones TFTP daemon
+ *
+ * Copyright (C) 2008 by Vladimir Dronnikov <dronnikov@gmail.com>
+ *
+ * Licensed under GPLv2, see file LICENSE in this tarball for details.
+ */
+#include "libbb.h"
+
+int tftpd_main(int argc, char **argv) MAIN_EXTERNALLY_VISIBLE;
+int tftpd_main(int argc, char **argv)
+{
+	// stdin, stdout -- network
+	int fd = -1;
+	unsigned seq = 0;
+	ssize_t len;
+	uint16_t cmd;
+	char buf[512+4];
+
+	// read packets
+	// packets of length < 5 indicate terminal condition
+	while ((len = safe_read(STDIN_FILENO, buf, sizeof(buf))) >= 4) {
+		cmd = *((uint16_t *)buf);
+		// read requested?
+		if (0x0100 == cmd) {
+			// ... open requested file
+			fd = open_or_warn(buf+2, O_RDONLY);
+			if (fd < 0) {
+				// send error packet
+				*((uint32_t *)(buf)) = 0x01000500;
+ bad:
+				*((uint16_t *)(buf+4)) = 0;
+				full_write(STDOUT_FILENO, buf, 5);
+				xfunc_die();
+			}
+			// RRQ should be acknowledged with data packet of seq num 1
+			goto send_data;
+		}
+		// write requested?
+		if (0x0200 == cmd) {
+			// ... create requested file
+			fd = open_or_warn(buf+2, O_CREAT | O_WRONLY | O_TRUNC | O_EXCL);
+			if (fd < 0) {
+				*((uint32_t *)(buf)) = 0x06000500;
+				goto bad;
+			}
+			// WRQ should be acknowledged with seq num 0
+			*((uint16_t *)(buf+2)) = 0;
+			// ack
+			goto send_ack;
+		}
+		// data packet?
+		if (0x0300 == cmd) {
+			// ... dump contents to the file being written
+			if (full_write(fd, buf+4, len-4) < 0) {
+				*((uint32_t *)(buf)) = 0x03000500;
+				goto bad;
+			}
+ send_ack:
+ 			// send ACK
+			buf[1] = 4;
+			len = 0;
+			goto send;
+		}
+		// ack packet?
+		if (0x0400 == cmd) {
+ send_data:
+			// ... send next data chunk
+			len = safe_read(fd, buf+4, 512);
+			if (len < 0) {
+				*((uint32_t *)(buf)) = 0x04000500;
+				goto bad;
+			}
+ 			// send DATA
+			buf[1] = 3;
+			*((uint16_t *)(buf+2)) = htons(++seq);
+ send:
+			xwrite(STDOUT_FILENO, buf, len+4);
+		}
+		// bad packet!
+		*((uint32_t *)(buf)) = 0x03000500;
+		goto bad;
+	}
+	close(fd);
+
+	return EXIT_SUCCESS;
+}