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diff --git a/bin/cp/utils.c b/bin/cp/utils.c
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+/*-
+ * Copyright (c) 1991, 1993, 1994
+ * The Regents of the University of California. All rights reserved.
+ *
+ * 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. All advertising materials mentioning features or use of this software
+ * must display the following acknowledgement:
+ * This product includes software developed by the University of
+ * California, Berkeley and its contributors.
+ * 4. 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.
+ */
+
+#ifndef lint
+static char sccsid[] = "@(#)utils.c 8.3 (Berkeley) 4/1/94";
+#endif /* not lint */
+
+#include <sys/param.h>
+#include <sys/stat.h>
+#include <sys/mman.h>
+#include <sys/time.h>
+
+#include <err.h>
+#include <errno.h>
+#include <fcntl.h>
+#include <fts.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <unistd.h>
+
+#include "extern.h"
+
+int
+copy_file(entp, dne)
+ FTSENT *entp;
+ int dne;
+{
+ static char buf[MAXBSIZE];
+ struct stat to_stat, *fs;
+ int ch, checkch, from_fd, rcount, rval, to_fd, wcount;
+#ifdef VM_AND_BUFFER_CACHE_SYNCHRONIZED
+ char *p;
+#endif
+
+ if ((from_fd = open(entp->fts_path, O_RDONLY, 0)) == -1) {
+ warn("%s", entp->fts_path);
+ return (1);
+ }
+
+ fs = entp->fts_statp;
+
+ /*
+ * If the file exists and we're interactive, verify with the user.
+ * If the file DNE, set the mode to be the from file, minus setuid
+ * bits, modified by the umask; arguably wrong, but it makes copying
+ * executables work right and it's been that way forever. (The
+ * other choice is 666 or'ed with the execute bits on the from file
+ * modified by the umask.)
+ */
+ if (!dne) {
+ if (iflag) {
+ (void)fprintf(stderr, "overwrite %s? ", to.p_path);
+ checkch = ch = getchar();
+ while (ch != '\n' && ch != EOF)
+ ch = getchar();
+ if (checkch != 'y') {
+ (void)close(from_fd);
+ return (0);
+ }
+ }
+ to_fd = open(to.p_path, O_WRONLY | O_TRUNC, 0);
+ } else
+ to_fd = open(to.p_path, O_WRONLY | O_TRUNC | O_CREAT,
+ fs->st_mode & ~(S_ISUID | S_ISGID));
+
+ if (to_fd == -1) {
+ warn("%s", to.p_path);
+ (void)close(from_fd);
+ return (1);;
+ }
+
+ rval = 0;
+
+ /*
+ * Mmap and write if less than 8M (the limit is so we don't totally
+ * trash memory on big files. This is really a minor hack, but it
+ * wins some CPU back.
+ */
+#ifdef VM_AND_BUFFER_CACHE_SYNCHRONIZED
+ if (fs->st_size <= 8 * 1048576) {
+ if ((p = mmap(NULL, (size_t)fs->st_size, PROT_READ,
+ 0, from_fd, (off_t)0)) == (char *)-1) {
+ warn("%s", entp->fts_path);
+ rval = 1;
+ } else {
+ if (write(to_fd, p, fs->st_size) != fs->st_size) {
+ warn("%s", to.p_path);
+ rval = 1;
+ }
+ /* Some systems don't unmap on close(2). */
+ if (munmap(p, fs->st_size) < 0) {
+ warn("%s", entp->fts_path);
+ rval = 1;
+ }
+ }
+ } else
+#endif
+ {
+ while ((rcount = read(from_fd, buf, MAXBSIZE)) > 0) {
+ wcount = write(to_fd, buf, rcount);
+ if (rcount != wcount || wcount == -1) {
+ warn("%s", to.p_path);
+ rval = 1;
+ break;
+ }
+ }
+ if (rcount < 0) {
+ warn("%s", entp->fts_path);
+ rval = 1;
+ }
+ }
+
+ /* If the copy went bad, lose the file. */
+ if (rval == 1) {
+ (void)unlink(to.p_path);
+ (void)close(from_fd);
+ (void)close(to_fd);
+ return (1);
+ }
+
+ if (pflag && setfile(fs, to_fd))
+ rval = 1;
+ /*
+ * If the source was setuid or setgid, lose the bits unless the
+ * copy is owned by the same user and group.
+ */
+#define RETAINBITS \
+ (S_ISUID | S_ISGID | S_ISVTX | S_IRWXU | S_IRWXG | S_IRWXO)
+ else if (fs->st_mode & (S_ISUID | S_ISGID) && fs->st_uid == myuid)
+ if (fstat(to_fd, &to_stat)) {
+ warn("%s", to.p_path);
+ rval = 1;
+ } else if (fs->st_gid == to_stat.st_gid &&
+ fchmod(to_fd, fs->st_mode & RETAINBITS & ~myumask)) {
+ warn("%s", to.p_path);
+ rval = 1;
+ }
+ (void)close(from_fd);
+ if (close(to_fd)) {
+ warn("%s", to.p_path);
+ rval = 1;
+ }
+ return (rval);
+}
+
+int
+copy_link(p, exists)
+ FTSENT *p;
+ int exists;
+{
+ int len;
+ char link[MAXPATHLEN];
+
+ if ((len = readlink(p->fts_path, link, sizeof(link))) == -1) {
+ warn("readlink: %s", p->fts_path);
+ return (1);
+ }
+ link[len] = '\0';
+ if (exists && unlink(to.p_path)) {
+ warn("unlink: %s", to.p_path);
+ return (1);
+ }
+ if (symlink(link, to.p_path)) {
+ warn("symlink: %s", link);
+ return (1);
+ }
+ return (0);
+}
+
+int
+copy_fifo(from_stat, exists)
+ struct stat *from_stat;
+ int exists;
+{
+ if (exists && unlink(to.p_path)) {
+ warn("unlink: %s", to.p_path);
+ return (1);
+ }
+ if (mkfifo(to.p_path, from_stat->st_mode)) {
+ warn("mkfifo: %s", to.p_path);
+ return (1);
+ }
+ return (pflag ? setfile(from_stat, 0) : 0);
+}
+
+int
+copy_special(from_stat, exists)
+ struct stat *from_stat;
+ int exists;
+{
+ if (exists && unlink(to.p_path)) {
+ warn("unlink: %s", to.p_path);
+ return (1);
+ }
+ if (mknod(to.p_path, from_stat->st_mode, from_stat->st_rdev)) {
+ warn("mknod: %s", to.p_path);
+ return (1);
+ }
+ return (pflag ? setfile(from_stat, 0) : 0);
+}
+
+
+int
+setfile(fs, fd)
+ register struct stat *fs;
+ int fd;
+{
+ static struct timeval tv[2];
+ int rval;
+
+ rval = 0;
+ fs->st_mode &= S_ISUID | S_ISGID | S_IRWXU | S_IRWXG | S_IRWXO;
+
+ TIMESPEC_TO_TIMEVAL(&tv[0], &fs->st_atimespec);
+ TIMESPEC_TO_TIMEVAL(&tv[1], &fs->st_mtimespec);
+ if (utimes(to.p_path, tv)) {
+ warn("utimes: %s", to.p_path);
+ rval = 1;
+ }
+ /*
+ * Changing the ownership probably won't succeed, unless we're root
+ * or POSIX_CHOWN_RESTRICTED is not set. Set uid/gid before setting
+ * the mode; current BSD behavior is to remove all setuid bits on
+ * chown. If chown fails, lose setuid/setgid bits.
+ */
+ if (fd ? fchown(fd, fs->st_uid, fs->st_gid) :
+ chown(to.p_path, fs->st_uid, fs->st_gid)) {
+ if (errno != EPERM) {
+ warn("chown: %s", to.p_path);
+ rval = 1;
+ }
+ fs->st_mode &= ~(S_ISUID | S_ISGID);
+ }
+ if (fd ? fchmod(fd, fs->st_mode) : chmod(to.p_path, fs->st_mode)) {
+ warn("chown: %s", to.p_path);
+ rval = 1;
+ }
+
+ if (fd ?
+ fchflags(fd, fs->st_flags) : chflags(to.p_path, fs->st_flags)) {
+ warn("chflags: %s", to.p_path);
+ rval = 1;
+ }
+ return (rval);
+}
+
+void
+usage()
+{
+ (void)fprintf(stderr, "%s\n%s\n",
+"usage: cp [-R [-H | -L | -P] [-fip] src target",
+" cp [-R [-H | -L | -P] [-fip] src1 ... srcN directory");
+ exit(1);
+}
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