diff --git a/toolbox/Android.mk b/toolbox/Android.mk
index ebe94d5..f163cb8 100644
--- a/toolbox/Android.mk
+++ b/toolbox/Android.mk
@@ -13,13 +13,6 @@
 
 
 include $(CLEAR_VARS)
-LOCAL_SRC_FILES := upstream-netbsd/bin/cat/cat.c
-LOCAL_CFLAGS += $(common_cflags) -Dmain=cat_main
-LOCAL_MODULE := libtoolbox_cat
-LOCAL_ADDITIONAL_DEPENDENCIES += $(LOCAL_PATH)/Android.mk
-include $(BUILD_STATIC_LIBRARY)
-
-include $(CLEAR_VARS)
 LOCAL_SRC_FILES := upstream-netbsd/sbin/chown/chown.c
 LOCAL_CFLAGS += $(common_cflags) -Dmain=chown_main
 LOCAL_MODULE := libtoolbox_chown
@@ -62,7 +55,6 @@
 include $(CLEAR_VARS)
 
 BSD_TOOLS := \
-    cat \
     chown \
     dd \
     du \
diff --git a/toolbox/upstream-netbsd/bin/cat/cat.c b/toolbox/upstream-netbsd/bin/cat/cat.c
deleted file mode 100644
index cca8cf5..0000000
--- a/toolbox/upstream-netbsd/bin/cat/cat.c
+++ /dev/null
@@ -1,329 +0,0 @@
-/* $NetBSD: cat.c,v 1.54 2013/12/08 08:32:13 spz Exp $	*/
-
-/*
- * Copyright (c) 1989, 1993
- *	The Regents of the University of California.  All rights reserved.
- *
- * This code is derived from software contributed to Berkeley by
- * Kevin Fall.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 1. Redistributions of source code must retain the above copyright
- *    notice, this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright
- *    notice, this list of conditions and the following disclaimer in the
- *    documentation and/or other materials provided with the distribution.
- * 3. Neither the name of the University nor the names of its contributors
- *    may be used to endorse or promote products derived from this software
- *    without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
- * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
- * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
- * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
- * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
- * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
- * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
- * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
- * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
- * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
- * SUCH DAMAGE.
- */
-
-#if HAVE_NBTOOL_CONFIG_H
-#include "nbtool_config.h"
-#endif
-
-#include <sys/cdefs.h>
-#if !defined(lint)
-__COPYRIGHT(
-"@(#) Copyright (c) 1989, 1993\
- The Regents of the University of California.  All rights reserved.");
-#if 0
-static char sccsid[] = "@(#)cat.c	8.2 (Berkeley) 4/27/95";
-#else
-__RCSID("$NetBSD: cat.c,v 1.54 2013/12/08 08:32:13 spz Exp $");
-#endif
-#endif /* not lint */
-
-#include <sys/param.h>
-#include <sys/stat.h>
-
-#include <ctype.h>
-#include <err.h>
-#include <errno.h>
-#include <fcntl.h>
-#include <locale.h>
-#include <stdio.h>
-#include <stdlib.h>
-#include <string.h>
-#include <unistd.h>
-
-static int bflag, eflag, fflag, lflag, nflag, sflag, tflag, vflag;
-static size_t bsize;
-static int rval;
-static const char *filename;
-
-void cook_args(char *argv[]);
-void cook_buf(FILE *);
-void raw_args(char *argv[]);
-void raw_cat(int);
-
-int
-main(int argc, char *argv[])
-{
-	int ch;
-	struct flock stdout_lock;
-
-	setprogname(argv[0]);
-	(void)setlocale(LC_ALL, "");
-
-	while ((ch = getopt(argc, argv, "B:beflnstuv")) != -1)
-		switch (ch) {
-		case 'B':
-			bsize = (size_t)strtol(optarg, NULL, 0);
-			break;
-		case 'b':
-			bflag = nflag = 1;	/* -b implies -n */
-			break;
-		case 'e':
-			eflag = vflag = 1;	/* -e implies -v */
-			break;
-		case 'f':
-			fflag = 1;
-			break;
-		case 'l':
-			lflag = 1;
-			break;
-		case 'n':
-			nflag = 1;
-			break;
-		case 's':
-			sflag = 1;
-			break;
-		case 't':
-			tflag = vflag = 1;	/* -t implies -v */
-			break;
-		case 'u':
-			setbuf(stdout, NULL);
-			break;
-		case 'v':
-			vflag = 1;
-			break;
-		default:
-		case '?':
-			(void)fprintf(stderr,
-			    "Usage: %s [-beflnstuv] [-B bsize] [-] "
-			    "[file ...]\n", getprogname());
-			return EXIT_FAILURE;
-		}
-	argv += optind;
-
-	if (lflag) {
-		stdout_lock.l_len = 0;
-		stdout_lock.l_start = 0;
-		stdout_lock.l_type = F_WRLCK;
-		stdout_lock.l_whence = SEEK_SET;
-		if (fcntl(STDOUT_FILENO, F_SETLKW, &stdout_lock) == -1)
-			err(EXIT_FAILURE, "stdout");
-	}
-
-	if (bflag || eflag || nflag || sflag || tflag || vflag)
-		cook_args(argv);
-	else
-		raw_args(argv);
-	if (fclose(stdout))
-		err(EXIT_FAILURE, "stdout");
-	return rval;
-}
-
-void
-cook_args(char **argv)
-{
-	FILE *fp;
-
-	fp = stdin;
-	filename = "stdin";
-	do {
-		if (*argv) {
-			if (!strcmp(*argv, "-"))
-				fp = stdin;
-			else if ((fp = fopen(*argv,
-			    fflag ? "rf" : "r")) == NULL) {
-				warn("%s", *argv);
-				rval = EXIT_FAILURE;
-				++argv;
-				continue;
-			}
-			filename = *argv++;
-		}
-		cook_buf(fp);
-		if (fp != stdin)
-			(void)fclose(fp);
-		else
-			clearerr(fp);
-	} while (*argv);
-}
-
-void
-cook_buf(FILE *fp)
-{
-	int ch, gobble, line, prev;
-
-	line = gobble = 0;
-	for (prev = '\n'; (ch = getc(fp)) != EOF; prev = ch) {
-		if (prev == '\n') {
-			if (ch == '\n') {
-				if (sflag) {
-					if (!gobble && nflag && !bflag)
-						(void)fprintf(stdout,
-							"%6d\t\n", ++line);
-					else if (!gobble && putchar(ch) == EOF)
-						break;
-					gobble = 1;
-					continue;
-				}
-				if (nflag) {
-					if (!bflag) {
-						(void)fprintf(stdout,
-						    "%6d\t", ++line);
-						if (ferror(stdout))
-							break;
-					} else if (eflag) {
-						(void)fprintf(stdout,
-						    "%6s\t", "");
-						if (ferror(stdout))
-							break;
-					}
-				}
-			} else if (nflag) {
-				(void)fprintf(stdout, "%6d\t", ++line);
-				if (ferror(stdout))
-					break;
-			}
-		}
-		gobble = 0;
-		if (ch == '\n') {
-			if (eflag)
-				if (putchar('$') == EOF)
-					break;
-		} else if (ch == '\t') {
-			if (tflag) {
-				if (putchar('^') == EOF || putchar('I') == EOF)
-					break;
-				continue;
-			}
-		} else if (vflag) {
-			if (!isascii(ch)) {
-				if (putchar('M') == EOF || putchar('-') == EOF)
-					break;
-				ch = toascii(ch);
-			}
-			if (iscntrl(ch)) {
-				if (putchar('^') == EOF ||
-				    putchar(ch == '\177' ? '?' :
-				    ch | 0100) == EOF)
-					break;
-				continue;
-			}
-		}
-		if (putchar(ch) == EOF)
-			break;
-	}
-	if (ferror(fp)) {
-		warn("%s", filename);
-		rval = EXIT_FAILURE;
-		clearerr(fp);
-	}
-	if (ferror(stdout))
-		err(EXIT_FAILURE, "stdout");
-}
-
-void
-raw_args(char **argv)
-{
-	int fd;
-
-	fd = fileno(stdin);
-	filename = "stdin";
-	do {
-		if (*argv) {
-			if (!strcmp(*argv, "-")) {
-				fd = fileno(stdin);
-				if (fd < 0)
-					goto skip;
-			} else if (fflag) {
-				struct stat st;
-				fd = open(*argv, O_RDONLY|O_NONBLOCK, 0);
-				if (fd < 0)
-					goto skip;
-
-				if (fstat(fd, &st) == -1) {
-					close(fd);
-					goto skip;
-				}
-				if (!S_ISREG(st.st_mode)) {
-					close(fd);
-					warnx("%s: not a regular file", *argv);
-					goto skipnomsg;
-				}
-			}
-			else if ((fd = open(*argv, O_RDONLY, 0)) < 0) {
-skip:
-				warn("%s", *argv);
-skipnomsg:
-				rval = EXIT_FAILURE;
-				++argv;
-				continue;
-			}
-			filename = *argv++;
-		} else if (fd < 0) {
-			err(EXIT_FAILURE, "stdin");
-		}
-		raw_cat(fd);
-		if (fd != fileno(stdin))
-			(void)close(fd);
-	} while (*argv);
-}
-
-void
-raw_cat(int rfd)
-{
-	static char *buf;
-	static char fb_buf[BUFSIZ];
-
-	ssize_t nr, nw, off;
-	int wfd;
-
-	wfd = fileno(stdout);
-	if (wfd < 0)
-		err(EXIT_FAILURE, "stdout");
-	if (buf == NULL) {
-		struct stat sbuf;
-
-		if (bsize == 0) {
-			if (fstat(wfd, &sbuf) == 0 && sbuf.st_blksize > 0 &&
-			    (size_t)sbuf.st_blksize > sizeof(fb_buf))
-				bsize = sbuf.st_blksize;
-		}
-		if (bsize > sizeof(fb_buf)) {
-			buf = malloc(bsize);
-			if (buf == NULL)
-				warnx("malloc, using %zu buffer", bsize);
-		}
-		if (buf == NULL) {
-			bsize = sizeof(fb_buf);
-			buf = fb_buf;
-		}
-	}
-	while ((nr = read(rfd, buf, bsize)) > 0)
-		for (off = 0; nr; nr -= nw, off += nw)
-			if ((nw = write(wfd, buf + off, (size_t)nr)) < 0)
-				err(EXIT_FAILURE, "stdout");
-	if (nr < 0) {
-		warn("%s", filename);
-		rval = EXIT_FAILURE;
-	}
-}