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-rw-r--r--bin/mv/mv.c427
1 files changed, 427 insertions, 0 deletions
diff --git a/bin/mv/mv.c b/bin/mv/mv.c
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index 0000000..e318d48
--- /dev/null
+++ b/bin/mv/mv.c
@@ -0,0 +1,427 @@
+/* $NetBSD: mv.c,v 1.45 2016/02/28 10:59:29 mrg Exp $ */
+
+/*
+ * Copyright (c) 1989, 1993, 1994
+ * The Regents of the University of California. All rights reserved.
+ *
+ * This code is derived from software contributed to Berkeley by
+ * Ken Smith of The State University of New York at Buffalo.
+ *
+ * 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.
+ */
+
+#include <sys/cdefs.h>
+#ifndef lint
+__COPYRIGHT("@(#) Copyright (c) 1989, 1993, 1994\
+ The Regents of the University of California. All rights reserved.");
+#endif /* not lint */
+
+#ifndef lint
+#if 0
+static char sccsid[] = "@(#)mv.c 8.2 (Berkeley) 4/2/94";
+#else
+__RCSID("$NetBSD: mv.c,v 1.45 2016/02/28 10:59:29 mrg Exp $");
+#endif
+#endif /* not lint */
+
+#include <sys/param.h>
+#include <sys/time.h>
+#include <sys/wait.h>
+#include <sys/stat.h>
+#include <sys/extattr.h>
+
+#include <err.h>
+#include <errno.h>
+#include <fcntl.h>
+#include <grp.h>
+#include <locale.h>
+#include <pwd.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <unistd.h>
+
+#include "pathnames.h"
+
+static int fflg, iflg, vflg;
+static int stdin_ok;
+static sig_atomic_t pinfo;
+
+static int copy(char *, char *);
+static int do_move(char *, char *);
+static int fastcopy(char *, char *, struct stat *);
+__dead static void usage(void);
+
+static void
+progress(int sig __unused)
+{
+
+ pinfo++;
+}
+
+int
+main(int argc, char *argv[])
+{
+ int ch, len, rval;
+ char *p, *endp;
+ struct stat sb;
+ char path[MAXPATHLEN + 1];
+ size_t baselen;
+
+ setprogname(argv[0]);
+ (void)setlocale(LC_ALL, "");
+
+ while ((ch = getopt(argc, argv, "ifv")) != -1)
+ switch (ch) {
+ case 'i':
+ fflg = 0;
+ iflg = 1;
+ break;
+ case 'f':
+ iflg = 0;
+ fflg = 1;
+ break;
+ case 'v':
+ vflg = 1;
+ break;
+ default:
+ usage();
+ }
+ argc -= optind;
+ argv += optind;
+
+ if (argc < 2)
+ usage();
+
+ stdin_ok = isatty(STDIN_FILENO);
+
+ (void)signal(SIGINFO, progress);
+
+ /*
+ * If the stat on the target fails or the target isn't a directory,
+ * try the move. More than 2 arguments is an error in this case.
+ */
+ if (stat(argv[argc - 1], &sb) || !S_ISDIR(sb.st_mode)) {
+ if (argc > 2)
+ usage();
+ exit(do_move(argv[0], argv[1]));
+ }
+
+ /* It's a directory, move each file into it. */
+ baselen = strlcpy(path, argv[argc - 1], sizeof(path));
+ if (baselen >= sizeof(path))
+ errx(1, "%s: destination pathname too long", argv[argc - 1]);
+ endp = &path[baselen];
+ if (!baselen || *(endp - 1) != '/') {
+ *endp++ = '/';
+ ++baselen;
+ }
+ for (rval = 0; --argc; ++argv) {
+ p = *argv + strlen(*argv) - 1;
+ while (*p == '/' && p != *argv)
+ *p-- = '\0';
+ if ((p = strrchr(*argv, '/')) == NULL)
+ p = *argv;
+ else
+ ++p;
+
+ if ((baselen + (len = strlen(p))) >= MAXPATHLEN) {
+ warnx("%s: destination pathname too long", *argv);
+ rval = 1;
+ } else {
+ memmove(endp, p, len + 1);
+ if (do_move(*argv, path))
+ rval = 1;
+ }
+ }
+ exit(rval);
+ /* NOTREACHED */
+}
+
+static int
+do_move(char *from, char *to)
+{
+ struct stat sb;
+ char modep[15];
+
+ /*
+ * (1) If the destination path exists, the -f option is not specified
+ * and either of the following conditions are true:
+ *
+ * (a) The permissions of the destination path do not permit
+ * writing and the standard input is a terminal.
+ * (b) The -i option is specified.
+ *
+ * the mv utility shall write a prompt to standard error and
+ * read a line from standard input. If the response is not
+ * affirmative, mv shall do nothing more with the current
+ * source file...
+ */
+ if (!fflg && !access(to, F_OK)) {
+ int ask = 1;
+ int ch;
+
+ if (iflg) {
+ if (access(from, F_OK)) {
+ warn("rename %s", from);
+ return (1);
+ }
+ (void)fprintf(stderr, "overwrite %s? ", to);
+ } else if (stdin_ok && access(to, W_OK) && !stat(to, &sb)) {
+ if (access(from, F_OK)) {
+ warn("rename %s", from);
+ return (1);
+ }
+ strmode(sb.st_mode, modep);
+ (void)fprintf(stderr, "override %s%s%s/%s for %s? ",
+ modep + 1, modep[9] == ' ' ? "" : " ",
+ user_from_uid(sb.st_uid, 0),
+ group_from_gid(sb.st_gid, 0), to);
+ } else
+ ask = 0;
+ if (ask) {
+ if ((ch = getchar()) != EOF && ch != '\n') {
+ int ch2;
+ while ((ch2 = getchar()) != EOF && ch2 != '\n')
+ continue;
+ }
+ if (ch != 'y' && ch != 'Y')
+ return (0);
+ }
+ }
+
+ /*
+ * (2) If rename() succeeds, mv shall do nothing more with the
+ * current source file. If it fails for any other reason than
+ * EXDEV, mv shall write a diagnostic message to the standard
+ * error and do nothing more with the current source file.
+ *
+ * (3) If the destination path exists, and it is a file of type
+ * directory and source_file is not a file of type directory,
+ * or it is a file not of type directory, and source file is
+ * a file of type directory, mv shall write a diagnostic
+ * message to standard error, and do nothing more with the
+ * current source file...
+ */
+ if (!rename(from, to)) {
+ if (vflg)
+ printf("%s -> %s\n", from, to);
+ return (0);
+ }
+
+ if (errno != EXDEV) {
+ warn("rename %s to %s", from, to);
+ return (1);
+ }
+
+ /*
+ * (4) If the destination path exists, mv shall attempt to remove it.
+ * If this fails for any reason, mv shall write a diagnostic
+ * message to the standard error and do nothing more with the
+ * current source file...
+ */
+ if (!lstat(to, &sb)) {
+ if ((S_ISDIR(sb.st_mode)) ? rmdir(to) : unlink(to)) {
+ warn("can't remove %s", to);
+ return (1);
+ }
+ }
+
+ /*
+ * (5) The file hierarchy rooted in source_file shall be duplicated
+ * as a file hierarchy rooted in the destination path...
+ */
+ if (lstat(from, &sb)) {
+ warn("%s", from);
+ return (1);
+ }
+
+ return (S_ISREG(sb.st_mode) ?
+ fastcopy(from, to, &sb) : copy(from, to));
+}
+
+static int
+fastcopy(char *from, char *to, struct stat *sbp)
+{
+#if defined(__NetBSD__)
+ struct timespec ts[2];
+#else
+ struct timeval tval[2];
+#endif
+ static blksize_t blen;
+ static char *bp;
+ int from_fd, to_fd;
+ ssize_t nread;
+ off_t total = 0;
+
+ if ((from_fd = open(from, O_RDONLY, 0)) < 0) {
+ warn("%s", from);
+ return (1);
+ }
+ if ((to_fd =
+ open(to, O_CREAT | O_TRUNC | O_WRONLY, sbp->st_mode)) < 0) {
+ warn("%s", to);
+ (void)close(from_fd);
+ return (1);
+ }
+ if (!blen && !(bp = malloc(blen = sbp->st_blksize))) {
+ warn(NULL);
+ blen = 0;
+ (void)close(from_fd);
+ (void)close(to_fd);
+ return (1);
+ }
+ while ((nread = read(from_fd, bp, blen)) > 0) {
+ if (write(to_fd, bp, nread) != nread) {
+ warn("%s", to);
+ goto err;
+ }
+ total += nread;
+ if (pinfo) {
+ int pcent = (int)((100.0 * total) / sbp->st_size);
+
+ pinfo = 0;
+ (void)fprintf(stderr, "%s => %s %llu/%llu bytes %d%% "
+ "written\n", from, to, (unsigned long long)total,
+ (unsigned long long)sbp->st_size, pcent);
+ }
+ }
+ if (nread < 0) {
+ warn("%s", from);
+err: if (unlink(to))
+ warn("%s: remove", to);
+ (void)close(from_fd);
+ (void)close(to_fd);
+ return (1);
+ }
+
+ if (fcpxattr(from_fd, to_fd) == -1)
+ warn("%s: error copying extended attributes", to);
+
+ (void)close(from_fd);
+#ifdef BSD4_4
+#if defined(__NetBSD__)
+ ts[0] = sbp->st_atimespec;
+ ts[1] = sbp->st_mtimespec;
+#else
+ TIMESPEC_TO_TIMEVAL(&tval[0], &sbp->st_atimespec);
+ TIMESPEC_TO_TIMEVAL(&tval[1], &sbp->st_mtimespec);
+#endif
+#else
+ tval[0].tv_sec = sbp->st_atime;
+ tval[1].tv_sec = sbp->st_mtime;
+ tval[0].tv_usec = 0;
+ tval[1].tv_usec = 0;
+#endif
+#ifdef __SVR4
+ if (utimes(to, tval))
+#else
+#if defined(__NetBSD__)
+ if (futimens(to_fd, ts))
+#else
+ if (futimes(to_fd, tval))
+#endif
+#endif
+ warn("%s: set times", to);
+ if (fchown(to_fd, sbp->st_uid, sbp->st_gid)) {
+ if (errno != EPERM)
+ warn("%s: set owner/group", to);
+ sbp->st_mode &= ~(S_ISUID | S_ISGID);
+ }
+ if (fchmod(to_fd, sbp->st_mode))
+ warn("%s: set mode", to);
+ if (fchflags(to_fd, sbp->st_flags) && (errno != EOPNOTSUPP))
+ warn("%s: set flags (was: 0%07o)", to, sbp->st_flags);
+
+ if (close(to_fd)) {
+ warn("%s", to);
+ return (1);
+ }
+
+ if (unlink(from)) {
+ warn("%s: remove", from);
+ return (1);
+ }
+
+ if (vflg)
+ printf("%s -> %s\n", from, to);
+
+ return (0);
+}
+
+static int
+copy(char *from, char *to)
+{
+ pid_t pid;
+ int status;
+
+ if ((pid = vfork()) == 0) {
+ execl(_PATH_CP, "mv", vflg ? "-PRpv" : "-PRp", "--", from, to, NULL);
+ warn("%s", _PATH_CP);
+ _exit(1);
+ }
+ if (waitpid(pid, &status, 0) == -1) {
+ warn("%s: waitpid", _PATH_CP);
+ return (1);
+ }
+ if (!WIFEXITED(status)) {
+ warnx("%s: did not terminate normally", _PATH_CP);
+ return (1);
+ }
+ if (WEXITSTATUS(status)) {
+ warnx("%s: terminated with %d (non-zero) status",
+ _PATH_CP, WEXITSTATUS(status));
+ return (1);
+ }
+ if (!(pid = vfork())) {
+ execl(_PATH_RM, "mv", "-rf", "--", from, NULL);
+ warn("%s", _PATH_RM);
+ _exit(1);
+ }
+ if (waitpid(pid, &status, 0) == -1) {
+ warn("%s: waitpid", _PATH_RM);
+ return (1);
+ }
+ if (!WIFEXITED(status)) {
+ warnx("%s: did not terminate normally", _PATH_RM);
+ return (1);
+ }
+ if (WEXITSTATUS(status)) {
+ warnx("%s: terminated with %d (non-zero) status",
+ _PATH_RM, WEXITSTATUS(status));
+ return (1);
+ }
+ return (0);
+}
+
+static void
+usage(void)
+{
+ (void)fprintf(stderr, "usage: %s [-fiv] source target\n"
+ " %s [-fiv] source ... directory\n", getprogname(),
+ getprogname());
+ exit(1);
+ /* NOTREACHED */
+}
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