diff options
Diffstat (limited to 'bin/mv')
| -rw-r--r-- | bin/mv/mv.1 | 149 | ||||
| -rw-r--r-- | bin/mv/mv.c | 427 | ||||
| -rw-r--r-- | bin/mv/pathnames.h | 40 |
3 files changed, 616 insertions, 0 deletions
diff --git a/bin/mv/mv.1 b/bin/mv/mv.1 new file mode 100644 index 0000000..7cc3d1c --- /dev/null +++ b/bin/mv/mv.1 @@ -0,0 +1,149 @@ +.\" $NetBSD: mv.1,v 1.30 2017/07/04 06:50:04 wiz Exp $ +.\" +.\" Copyright (c) 1989, 1990, 1993 +.\" The Regents of the University of California. All rights reserved. +.\" +.\" This code is derived from software contributed to Berkeley by +.\" the Institute of Electrical and Electronics Engineers, Inc. +.\" +.\" 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. +.\" +.\" @(#)mv.1 8.1 (Berkeley) 5/31/93 +.\" +.Dd August 10, 2016 +.Dt MV 1 +.Os +.Sh NAME +.Nm mv +.Nd move files +.Sh SYNOPSIS +.Nm +.Op Fl fiv +.Ar source target +.Nm +.Op Fl fiv +.Ar source ... directory +.Sh DESCRIPTION +In its first form, the +.Nm +utility renames the file named by the +.Ar source +operand to the destination path named by the +.Ar target +operand. +This form is assumed when the last operand does not name an already +existing directory. +.Pp +In its second form, +.Nm +moves each file named by a +.Ar source +operand to a destination file in the existing directory named by the +.Ar directory +operand. +The destination path for each operand is the pathname produced by the +concatenation of the last operand, a slash, and the final pathname +component of the named file. +.Pp +The following options are available: +.Bl -tag -width flag +.It Fl f +Do not prompt for confirmation before overwriting the destination +path. +.It Fl i +Causes +.Nm +to write a prompt to standard error before moving a file that would +overwrite an existing file. +If the response from the standard input begins with the character ``y'', +the move is attempted. +.It Fl v +Cause +.Nm +to be verbose, showing files as they are processed. +.El +.Pp +The last of any +.Fl f +or +.Fl i +options is the one which affects +.Nm Ns 's +behavior. +.Pp +It is an error for any of the +.Ar source +operands to specify a nonexistent file or directory. +.Pp +It is an error for the +.Ar source +operand to specify a directory if the +.Ar target +exists and is not a directory. +.Pp +If the destination path does not have a mode which permits writing, +.Nm +prompts the user for confirmation as specified for the +.Fl i +option. +.Pp +Should the +.Xr rename 2 +call fail because +.Ar source +and +.Ar target +are on different file systems, +.Nm +will remove the destination file, copy the source file to the +destination, and then remove the source. +The effect is roughly equivalent to: +.Bd -literal -offset indent +rm -f destination_path && \e +cp -PRp source_file destination_path && \e +rm -rf source_file +.Ed +.Sh EXIT STATUS +.Ex -std mv +.Sh SEE ALSO +.Xr cp 1 , +.Xr rename 2 , +.Xr symlink 7 +.Sh STANDARDS +The +.Nm +utility is expected to be +.St -p1003.2 +compatible. +.Pp +The +.Fl v +option is an extension to +.St -p1003.2 . +.Sh HISTORY +An +.Nm +utility appeared in +.At v1 . diff --git a/bin/mv/mv.c b/bin/mv/mv.c new file mode 100644 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 */ +} diff --git a/bin/mv/pathnames.h b/bin/mv/pathnames.h new file mode 100644 index 0000000..a38e4e9 --- /dev/null +++ b/bin/mv/pathnames.h @@ -0,0 +1,40 @@ +/* $NetBSD: pathnames.h,v 1.8 2004/08/19 22:26:07 christos Exp $ */ + +/* + * Copyright (c) 1989, 1993 + * 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. 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. + * + * @(#)pathnames.h 8.1 (Berkeley) 5/31/93 + */ + +#ifdef RESCUEDIR +#define _PATH_RM RESCUEDIR "/rm" +#define _PATH_CP RESCUEDIR "/cp" +#else +#define _PATH_RM "/bin/rm" +#define _PATH_CP "/bin/cp" +#endif |