mirror of
https://github.com/sheumann/hush.git
synced 2024-11-17 10:07:19 +00:00
134 lines
3.7 KiB
C
134 lines
3.7 KiB
C
/* vi: set sw=4 ts=4: */
|
|
/*
|
|
* Mini cp implementation for busybox
|
|
*
|
|
* Copyright (C) 2000 by Matt Kraai <kraai@alumni.carnegiemellon.edu>
|
|
*
|
|
* This program is free software; you can redistribute it and/or modify
|
|
* it under the terms of the GNU General Public License as published by
|
|
* the Free Software Foundation; either version 2 of the License, or
|
|
* (at your option) any later version.
|
|
*
|
|
* This program is distributed in the hope that it will be useful,
|
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
|
* General Public License for more details.
|
|
*
|
|
* You should have received a copy of the GNU General Public License
|
|
* along with this program; if not, write to the Free Software
|
|
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
|
|
*
|
|
*/
|
|
|
|
/* BB_AUDIT SUSv3 defects - unsupported options -H, -L, and -P. */
|
|
/* BB_AUDIT GNU defects - only extension options supported are -a and -d. */
|
|
/* http://www.opengroup.org/onlinepubs/007904975/utilities/cp.html */
|
|
|
|
/* Mar 16, 2003 Manuel Novoa III (mjn3@codepoet.org)
|
|
*
|
|
* Size reduction.
|
|
*/
|
|
|
|
#include <sys/types.h>
|
|
#include <sys/stat.h>
|
|
#include <unistd.h>
|
|
#include <fcntl.h>
|
|
#include <utime.h>
|
|
#include <errno.h>
|
|
#include <dirent.h>
|
|
#include <stdlib.h>
|
|
#include <assert.h>
|
|
#include "busybox.h"
|
|
#include "libcoreutils/coreutils.h"
|
|
|
|
/* WARNING!! ORDER IS IMPORTANT!! */
|
|
static const char cp_opts[] = "pdRfiarPHL";
|
|
|
|
extern int cp_main(int argc, char **argv)
|
|
{
|
|
struct stat source_stat;
|
|
struct stat dest_stat;
|
|
const char *last;
|
|
const char *dest;
|
|
int s_flags;
|
|
int d_flags;
|
|
int flags;
|
|
int status = 0;
|
|
|
|
/* Since these are enums, #if tests will not work. So use assert()s. */
|
|
assert(FILEUTILS_PRESERVE_STATUS == 1);
|
|
assert(FILEUTILS_DEREFERENCE == 2);
|
|
assert(FILEUTILS_RECUR == 4);
|
|
assert(FILEUTILS_FORCE == 8);
|
|
assert(FILEUTILS_INTERACTIVE == 16);
|
|
|
|
flags = bb_getopt_ulflags(argc, argv, cp_opts);
|
|
|
|
if (flags & 32) {
|
|
flags |= (FILEUTILS_PRESERVE_STATUS | FILEUTILS_RECUR | FILEUTILS_DEREFERENCE);
|
|
}
|
|
if (flags & 64) {
|
|
/* Make -r a synonym for -R,
|
|
* -r was marked as obsolete in SUSv3, but is included for compatability
|
|
*/
|
|
flags |= FILEUTILS_RECUR;
|
|
}
|
|
if (flags & 128) {
|
|
/* Make -P a synonym for -d,
|
|
* -d is the GNU option while -P is the POSIX 2003 option
|
|
*/
|
|
flags |= FILEUTILS_DEREFERENCE;
|
|
}
|
|
/* Default behavior of cp is to dereference, so we don't have to do
|
|
* anything special when we are given -L.
|
|
* The behavior of -H is *almost* like -L, but not quite, so let's
|
|
* just ignore it too for fun.
|
|
if (flags & 256 || flags & 512) {
|
|
;
|
|
}
|
|
*/
|
|
|
|
flags ^= FILEUTILS_DEREFERENCE; /* The sense of this flag was reversed. */
|
|
|
|
if (optind + 2 > argc) {
|
|
bb_show_usage();
|
|
}
|
|
|
|
last = argv[argc - 1];
|
|
argv += optind;
|
|
|
|
/* If there are only two arguments and... */
|
|
if (optind + 2 == argc) {
|
|
s_flags = cp_mv_stat2(*argv, &source_stat,
|
|
(flags & FILEUTILS_DEREFERENCE) ? stat : lstat);
|
|
if ((s_flags < 0) || ((d_flags = cp_mv_stat(last, &dest_stat)) < 0)) {
|
|
exit(EXIT_FAILURE);
|
|
}
|
|
/* ...if neither is a directory or... */
|
|
if ( !((s_flags | d_flags) & 2) ||
|
|
/* ...recursing, the 1st is a directory, and the 2nd doesn't exist... */
|
|
/* ((flags & FILEUTILS_RECUR) && (s_flags & 2) && !d_flags) */
|
|
/* Simplify the above since FILEUTILS_RECUR >> 1 == 2. */
|
|
((((flags & FILEUTILS_RECUR) >> 1) & s_flags) && !d_flags)
|
|
) {
|
|
/* ...do a simple copy. */
|
|
dest = last;
|
|
goto DO_COPY; /* Note: optind+2==argc implies argv[1]==last below. */
|
|
}
|
|
}
|
|
|
|
do {
|
|
dest = concat_path_file(last, bb_get_last_path_component(*argv));
|
|
DO_COPY:
|
|
if (copy_file(*argv, dest, flags) < 0) {
|
|
status = 1;
|
|
}
|
|
if (*++argv == last) {
|
|
break;
|
|
}
|
|
free((void *) dest);
|
|
} while (1);
|
|
|
|
exit(status);
|
|
}
|