#include <sys/cdefs.h>
#ifndef lint
__COPYRIGHT("@(#) Copyright (c) 1989, 1993, 1994\n\
The Regents of the University of California. All rights reserved.\n");
#endif
#ifndef lint
#if 0
static char sccsid[] = "@(#)mv.c 8.2 (Berkeley) 4/2/94";
#else
__RCSID("$NetBSD: mv.c,v 1.19 1998/07/28 11:41:49 mycroft Exp $");
#endif
#endif
#include <sys/param.h>
#include <sys/time.h>
#include <sys/wait.h>
#include <sys/stat.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>
#include <pwd.h>
#include <grp.h>
#include "pathnames.h"
int fflg, iflg;
int stdin_ok;
int copy __P((char *, char *));
int do_move __P((char *, char *));
int fastcopy __P((char *, char *, struct stat *));
void usage __P((void));
int main __P((int, char *[]));
int
main(argc, argv)
int argc;
char *argv[];
{
int baselen, len, rval;
char *p, *endp;
struct stat sb;
int ch;
char path[MAXPATHLEN + 1];
(void)setlocale(LC_ALL, "");
while ((ch = getopt(argc, argv, "if")) != -1)
switch (ch) {
case 'i':
fflg = 0;
iflg = 1;
break;
case 'f':
iflg = 0;
fflg = 1;
break;
case '?':
default:
usage();
}
argc -= optind;
argv += optind;
if (argc < 2)
usage();
stdin_ok = isatty(STDIN_FILENO);
if (stat(argv[argc - 1], &sb) || !S_ISDIR(sb.st_mode)) {
if (argc > 2)
usage();
exit(do_move(argv[0], argv[1]));
}
(void)strcpy(path, argv[argc - 1]);
baselen = strlen(path);
endp = &path[baselen];
*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);
}
int
do_move(from, to)
char *from, *to;
{
struct stat sb;
char modep[15];
if (!fflg && !access(to, F_OK)) {
int ask = 1;
int ch;
if (iflg) {
(void)fprintf(stderr, "overwrite %s? ", to);
} else if (stdin_ok && access(to, W_OK) && !stat(to, &sb)) {
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')
while (getchar() != '\n');
if (ch != 'y' && ch != 'Y')
return (0);
}
}
if (!rename(from, to))
return (0);
if (errno != EXDEV) {
warn("rename %s to %s", from, to);
return (1);
}
if (!lstat(to, &sb)) {
if ((S_ISDIR(sb.st_mode)) ? rmdir(to) : unlink(to)) {
warn("can't remove %s", to);
return (1);
}
}
if (lstat(from, &sb)) {
warn("%s", from);
return (1);
}
return (S_ISREG(sb.st_mode) ?
fastcopy(from, to, &sb) : copy(from, to));
}
int
fastcopy(from, to, sbp)
char *from, *to;
struct stat *sbp;
{
struct timeval tval[2];
static u_int blen;
static char *bp;
int nread, from_fd, to_fd;
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("%s", "");
return (1);
}
while ((nread = read(from_fd, bp, blen)) > 0)
if (write(to_fd, bp, nread) != nread) {
warn("%s", to);
goto err;
}
if (nread < 0) {
warn("%s", from);
err: if (unlink(to))
warn("%s: remove", to);
(void)close(from_fd);
(void)close(to_fd);
return (1);
}
(void)close(from_fd);
TIMESPEC_TO_TIMEVAL(&tval[0], &sbp->st_atimespec);
TIMESPEC_TO_TIMEVAL(&tval[1], &sbp->st_mtimespec);
#ifndef __APPLE__
if (futimes(to_fd, tval))
#else
if (utimes(to, tval))
#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 (close(to_fd)) {
warn("%s", to);
return (1);
}
if (unlink(from)) {
warn("%s: remove", from);
return (1);
}
return (0);
}
int
copy(from, to)
char *from, *to;
{
int pid, status;
if ((pid = vfork()) == 0) {
execl(_PATH_CP, "mv", "-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)) {
warn("%s: did not terminate normally", _PATH_CP);
return (1);
}
if (WEXITSTATUS(status)) {
warn("%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)) {
warn("%s: did not terminate normally", _PATH_RM);
return (1);
}
if (WEXITSTATUS(status)) {
warn("%s: terminated with %d (non-zero) status",
_PATH_RM, WEXITSTATUS(status));
return (1);
}
return (0);
}
void
usage()
{
(void)fprintf(stderr, "usage: mv [-fi] source target\n");
(void)fprintf(stderr, " mv [-fi] source ... directory\n");
exit(1);
}