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/* $OpenBSD: cp.c,v 1.7 2015/12/27 01:25:57 chl Exp $ */ |
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/* $NetBSD: cp.c,v 1.14 1995/09/07 06:14:51 jtc Exp $ */ |
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/* |
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* Copyright (c) 1988, 1993, 1994 |
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* The Regents of the University of California. All rights reserved. |
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* |
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* This code is derived from software contributed to Berkeley by |
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* David Hitz of Auspex Systems Inc. |
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* |
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* Redistribution and use in source and binary forms, with or without |
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* modification, are permitted provided that the following conditions |
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* are met: |
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* 1. Redistributions of source code must retain the above copyright |
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* notice, this list of conditions and the following disclaimer. |
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* 2. Redistributions in binary form must reproduce the above copyright |
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* notice, this list of conditions and the following disclaimer in the |
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* documentation and/or other materials provided with the distribution. |
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* 3. Neither the name of the University nor the names of its contributors |
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* may be used to endorse or promote products derived from this software |
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* without specific prior written permission. |
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* |
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* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND |
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE |
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* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE |
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL |
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS |
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) |
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT |
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY |
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF |
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* SUCH DAMAGE. |
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*/ |
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/* |
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* Cp copies source files to target files. |
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* |
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* The global PATH_T structure "to" always contains the path to the |
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* current target file. Since fts(3) does not change directories, |
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* this path can be either absolute or dot-relative. |
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* |
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* The basic algorithm is to initialize "to" and use fts(3) to traverse |
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* the file hierarchy rooted in the argument list. A trivial case is the |
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* case of 'cp file1 file2'. The more interesting case is the case of |
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* 'cp file1 file2 ... fileN dir' where the hierarchy is traversed and the |
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* path (relative to the root of the traversal) is appended to dir (stored |
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* in "to") to form the final target path. |
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*/ |
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#include <sys/types.h> |
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#include <sys/stat.h> |
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#include <sys/mman.h> |
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#include <sys/time.h> |
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#include <dirent.h> |
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#include <err.h> |
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#include <errno.h> |
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#include <fcntl.h> |
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#include <fts.h> |
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#include <stdio.h> |
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#include <stdlib.h> |
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#include <string.h> |
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#include <unistd.h> |
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#include <limits.h> |
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#define fts_dne(_x) (_x->fts_pointer != NULL) |
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typedef struct { |
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char *p_end; /* pointer to NULL at end of path */ |
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char *target_end; /* pointer to end of target base */ |
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char p_path[PATH_MAX]; /* pointer to the start of a path */ |
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} PATH_T; |
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static PATH_T to = { to.p_path, "" }; |
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static int copy_fifo(struct stat *, int); |
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static int copy_file(FTSENT *, int); |
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static int copy_link(FTSENT *, int); |
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static int copy_special(struct stat *, int); |
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static int setfile(struct stat *, int); |
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extern char *__progname; |
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static uid_t myuid; |
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static int fflag, iflag; |
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static mode_t myumask; |
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enum op { FILE_TO_FILE, FILE_TO_DIR, DIR_TO_DNE }; |
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static int copy(char *[], enum op, int); |
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static char *find_last_component(char *); |
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static void __dead |
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usage(void) |
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{ |
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(void)fprintf(stderr, |
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"usage: %s [-fip] [-R [-H | -L | -P]] source target\n", __progname); |
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(void)fprintf(stderr, |
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" %s [-fip] [-R [-H | -L | -P]] source ... directory\n", |
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__progname); |
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exit(1); |
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} |
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int |
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cpmain(int argc, char *argv[]) |
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{ |
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struct stat to_stat, tmp_stat; |
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enum op type; |
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int fts_options, r; |
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char *target; |
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fts_options = FTS_NOCHDIR | FTS_PHYSICAL; |
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myuid = getuid(); |
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/* Copy the umask for explicit mode setting. */ |
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myumask = umask(0); |
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(void)umask(myumask); |
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/* Save the target base in "to". */ |
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target = argv[--argc]; |
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if (strlcpy(to.p_path, target, sizeof to.p_path) >= sizeof(to.p_path)) |
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errx(1, "%s: name too long", target); |
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to.p_end = to.p_path + strlen(to.p_path); |
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if (to.p_path == to.p_end) { |
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*to.p_end++ = '.'; |
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*to.p_end = '\0'; |
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} |
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to.target_end = to.p_end; |
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/* Set end of argument list for fts(3). */ |
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argv[argc] = NULL; |
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/* |
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* Cp has two distinct cases: |
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* |
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* cp [-R] source target |
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* cp [-R] source1 ... sourceN directory |
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* |
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* In both cases, source can be either a file or a directory. |
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* |
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* In (1), the target becomes a copy of the source. That is, if the |
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* source is a file, the target will be a file, and likewise for |
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* directories. |
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* |
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* In (2), the real target is not directory, but "directory/source". |
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*/ |
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r = stat(to.p_path, &to_stat); |
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if (r == -1 && errno != ENOENT) |
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err(1, "%s", to.p_path); |
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if (r == -1 || !S_ISDIR(to_stat.st_mode)) { |
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/* |
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* Case (1). Target is not a directory. |
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*/ |
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if (argc > 1) |
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usage(); |
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/* |
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* Need to detect the case: |
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* cp -R dir foo |
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* Where dir is a directory and foo does not exist, where |
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* we want pathname concatenations turned on but not for |
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* the initial mkdir(). |
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*/ |
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if (r == -1) { |
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lstat(*argv, &tmp_stat); |
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if (S_ISDIR(tmp_stat.st_mode)) |
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type = DIR_TO_DNE; |
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else |
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type = FILE_TO_FILE; |
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} else |
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type = FILE_TO_FILE; |
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} else { |
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/* |
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* Case (2). Target is a directory. |
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*/ |
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type = FILE_TO_DIR; |
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} |
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return (copy(argv, type, fts_options)); |
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} |
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static char * |
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find_last_component(char *path) |
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{ |
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char *p; |
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if ((p = strrchr(path, '/')) == NULL) |
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p = path; |
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else { |
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/* Special case foo/ */ |
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if (!*(p+1)) { |
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while ((p >= path) && *p == '/') |
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p--; |
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while ((p >= path) && *p != '/') |
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p--; |
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} |
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p++; |
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} |
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return (p); |
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} |
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static int |
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copy(char *argv[], enum op type, int fts_options) |
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{ |
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struct stat to_stat; |
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FTS *ftsp; |
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FTSENT *curr; |
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int base, nlen, rval; |
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char *p, *target_mid; |
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base = 0; |
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if ((ftsp = fts_open(argv, fts_options, NULL)) == NULL) |
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err(1, NULL); |
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for (rval = 0; (curr = fts_read(ftsp)) != NULL;) { |
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switch (curr->fts_info) { |
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case FTS_NS: |
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case FTS_DNR: |
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case FTS_ERR: |
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warnx("%s: %s", |
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curr->fts_path, strerror(curr->fts_errno)); |
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rval = 1; |
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continue; |
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case FTS_DC: |
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warnx("%s: directory causes a cycle", curr->fts_path); |
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rval = 1; |
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continue; |
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} |
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/* |
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* If we are in case (2) or (3) above, we need to append the |
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* source name to the target name. |
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*/ |
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if (type != FILE_TO_FILE) { |
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/* |
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* Need to remember the roots of traversals to create |
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* correct pathnames. If there's a directory being |
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* copied to a non-existent directory, e.g. |
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* cp -R a/dir noexist |
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* the resulting path name should be noexist/foo, not |
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* noexist/dir/foo (where foo is a file in dir), which |
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* is the case where the target exists. |
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* |
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* Also, check for "..". This is for correct path |
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* concatenation for paths ending in "..", e.g. |
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* cp -R .. /tmp |
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* Paths ending in ".." are changed to ".". This is |
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* tricky, but seems the easiest way to fix the problem. |
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* |
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* XXX |
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* Since the first level MUST be FTS_ROOTLEVEL, base |
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* is always initialized. |
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*/ |
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if (curr->fts_level == FTS_ROOTLEVEL) { |
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if (type != DIR_TO_DNE) { |
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p = find_last_component(curr->fts_path); |
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base = p - curr->fts_path; |
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if (!strcmp(&curr->fts_path[base], |
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"..")) |
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base += 1; |
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} else |
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base = curr->fts_pathlen; |
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} |
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p = &curr->fts_path[base]; |
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nlen = curr->fts_pathlen - base; |
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target_mid = to.target_end; |
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if (*p != '/' && target_mid[-1] != '/') |
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*target_mid++ = '/'; |
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*target_mid = '\0'; |
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if (target_mid - to.p_path + nlen >= PATH_MAX) { |
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warnx("%s%s: name too long (not copied)", |
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to.p_path, p); |
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rval = 1; |
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continue; |
282 |
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} |
283 |
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(void)strncat(target_mid, p, nlen); |
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to.p_end = target_mid + nlen; |
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*to.p_end = '\0'; |
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} |
287 |
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288 |
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/* Not an error but need to remember it happened */ |
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if (stat(to.p_path, &to_stat) == -1) { |
290 |
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if (curr->fts_info == FTS_DP) |
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continue; |
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/* |
293 |
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* We use fts_pointer as a boolean to indicate that |
294 |
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* we created this directory ourselves. We'll use |
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* this later on via the fts_dne macro to decide |
296 |
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* whether or not to set the directory mode during |
297 |
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* the post-order pass. |
298 |
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*/ |
299 |
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curr->fts_pointer = (void *)1; |
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} else { |
301 |
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/* |
302 |
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* Set directory mode/user/times on the post-order |
303 |
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* pass. We can't do this earlier because the mode |
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* may not allow us write permission. Furthermore, |
305 |
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* if we set the times during the pre-order pass, |
306 |
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* they will get changed later when the directory |
307 |
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* is populated. |
308 |
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*/ |
309 |
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if (curr->fts_info == FTS_DP) { |
310 |
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if (!S_ISDIR(to_stat.st_mode)) |
311 |
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continue; |
312 |
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/* |
313 |
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* If not -p and directory didn't exist, set |
314 |
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* it to be the same as the from directory, |
315 |
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* unmodified by the umask; arguably wrong, |
316 |
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* but it's been that way forever. |
317 |
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*/ |
318 |
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if (setfile(curr->fts_statp, -1)) |
319 |
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rval = 1; |
320 |
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else if (fts_dne(curr)) |
321 |
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(void)chmod(to.p_path, |
322 |
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curr->fts_statp->st_mode); |
323 |
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continue; |
324 |
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} |
325 |
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if (to_stat.st_dev == curr->fts_statp->st_dev && |
326 |
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to_stat.st_ino == curr->fts_statp->st_ino) { |
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warnx("%s and %s are identical (not copied).", |
328 |
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to.p_path, curr->fts_path); |
329 |
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rval = 1; |
330 |
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if (S_ISDIR(curr->fts_statp->st_mode)) |
331 |
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(void)fts_set(ftsp, curr, FTS_SKIP); |
332 |
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continue; |
333 |
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} |
334 |
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if (!S_ISDIR(curr->fts_statp->st_mode) && |
335 |
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S_ISDIR(to_stat.st_mode)) { |
336 |
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warnx("cannot overwrite directory %s with non-directory %s", |
337 |
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to.p_path, curr->fts_path); |
338 |
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rval = 1; |
339 |
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continue; |
340 |
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} |
341 |
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} |
342 |
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|
343 |
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switch (curr->fts_statp->st_mode & S_IFMT) { |
344 |
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case S_IFLNK: |
345 |
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if (copy_link(curr, !fts_dne(curr))) |
346 |
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rval = 1; |
347 |
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break; |
348 |
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case S_IFDIR: |
349 |
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/* |
350 |
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* If the directory doesn't exist, create the new |
351 |
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* one with the from file mode plus owner RWX bits, |
352 |
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* modified by the umask. Trade-off between being |
353 |
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* able to write the directory (if from directory is |
354 |
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* 555) and not causing a permissions race. If the |
355 |
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* umask blocks owner writes, we fail.. |
356 |
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*/ |
357 |
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if (fts_dne(curr)) { |
358 |
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if (mkdir(to.p_path, |
359 |
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curr->fts_statp->st_mode | S_IRWXU) < 0) |
360 |
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err(1, "%s", to.p_path); |
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} else if (!S_ISDIR(to_stat.st_mode)) |
362 |
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errc(1, ENOTDIR, "%s", to.p_path); |
363 |
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break; |
364 |
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case S_IFBLK: |
365 |
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case S_IFCHR: |
366 |
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if (copy_special(curr->fts_statp, !fts_dne(curr))) |
367 |
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rval = 1; |
368 |
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break; |
369 |
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case S_IFIFO: |
370 |
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if (copy_fifo(curr->fts_statp, !fts_dne(curr))) |
371 |
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rval = 1; |
372 |
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break; |
373 |
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case S_IFSOCK: |
374 |
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warnc(EOPNOTSUPP, "%s", curr->fts_path); |
375 |
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break; |
376 |
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default: |
377 |
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if (copy_file(curr, fts_dne(curr))) |
378 |
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rval = 1; |
379 |
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break; |
380 |
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} |
381 |
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} |
382 |
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if (errno) |
383 |
|
|
err(1, "fts_read"); |
384 |
|
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(void)fts_close(ftsp); |
385 |
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return (rval); |
386 |
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} |
387 |
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|
388 |
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|
389 |
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/* $OpenBSD: cp.c,v 1.7 2015/12/27 01:25:57 chl Exp $ */ |
390 |
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/* $NetBSD: utils.c,v 1.6 1997/02/26 14:40:51 cgd Exp $ */ |
391 |
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|
392 |
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/*- |
393 |
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* Copyright (c) 1991, 1993, 1994 |
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* The Regents of the University of California. All rights reserved. |
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* |
396 |
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* Redistribution and use in source and binary forms, with or without |
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* modification, are permitted provided that the following conditions |
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* are met: |
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* 1. Redistributions of source code must retain the above copyright |
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* notice, this list of conditions and the following disclaimer. |
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* 2. Redistributions in binary form must reproduce the above copyright |
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* notice, this list of conditions and the following disclaimer in the |
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* documentation and/or other materials provided with the distribution. |
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* 3. Neither the name of the University nor the names of its contributors |
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* may be used to endorse or promote products derived from this software |
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* without specific prior written permission. |
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* |
408 |
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* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND |
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE |
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* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE |
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL |
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS |
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) |
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT |
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY |
417 |
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF |
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* SUCH DAMAGE. |
419 |
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*/ |
420 |
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|
421 |
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#include <sys/param.h> /* MAXBSIZE */ |
422 |
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#include <sys/stat.h> |
423 |
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#include <sys/mman.h> |
424 |
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#include <sys/time.h> |
425 |
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|
426 |
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#include <err.h> |
427 |
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#include <errno.h> |
428 |
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#include <fcntl.h> |
429 |
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#include <fts.h> |
430 |
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#include <stdio.h> |
431 |
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#include <stdlib.h> |
432 |
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#include <string.h> |
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#include <unistd.h> |
434 |
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#include <limits.h> |
435 |
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|
436 |
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static int |
437 |
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copy_file(FTSENT *entp, int dne) |
438 |
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{ |
439 |
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static char *buf; |
440 |
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static char *zeroes; |
441 |
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struct stat *fs; |
442 |
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int ch, checkch, from_fd, rcount, rval, to_fd, wcount; |
443 |
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#ifdef VM_AND_BUFFER_CACHE_SYNCHRONIZED |
444 |
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char *p; |
445 |
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#endif |
446 |
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|
447 |
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if (!buf) { |
448 |
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buf = malloc(MAXBSIZE); |
449 |
|
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if (!buf) |
450 |
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err(1, "malloc"); |
451 |
|
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} |
452 |
|
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if (!zeroes) { |
453 |
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zeroes = calloc(1, MAXBSIZE); |
454 |
|
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if (!zeroes) |
455 |
|
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err(1, "calloc"); |
456 |
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} |
457 |
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|
458 |
|
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if ((from_fd = open(entp->fts_path, O_RDONLY, 0)) == -1) { |
459 |
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warn("%s", entp->fts_path); |
460 |
|
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return (1); |
461 |
|
|
} |
462 |
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|
463 |
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fs = entp->fts_statp; |
464 |
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|
465 |
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/* |
466 |
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* In -f (force) mode, we always unlink the destination first |
467 |
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* if it exists. Note that -i and -f are mutually exclusive. |
468 |
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*/ |
469 |
|
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if (!dne && fflag) |
470 |
|
|
(void)unlink(to.p_path); |
471 |
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|
472 |
|
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/* |
473 |
|
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* If the file exists and we're interactive, verify with the user. |
474 |
|
|
* If the file DNE, set the mode to be the from file, minus setuid |
475 |
|
|
* bits, modified by the umask; arguably wrong, but it makes copying |
476 |
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|
* executables work right and it's been that way forever. (The |
477 |
|
|
* other choice is 666 or'ed with the execute bits on the from file |
478 |
|
|
* modified by the umask.) |
479 |
|
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*/ |
480 |
|
|
if (!dne && !fflag) { |
481 |
|
|
if (iflag) { |
482 |
|
|
(void)fprintf(stderr, "overwrite %s? ", to.p_path); |
483 |
|
|
checkch = ch = getchar(); |
484 |
|
|
while (ch != '\n' && ch != EOF) |
485 |
|
|
ch = getchar(); |
486 |
|
|
if (checkch != 'y' && checkch != 'Y') { |
487 |
|
|
(void)close(from_fd); |
488 |
|
|
return (0); |
489 |
|
|
} |
490 |
|
|
} |
491 |
|
|
to_fd = open(to.p_path, O_WRONLY | O_TRUNC, 0); |
492 |
|
|
} else |
493 |
|
|
to_fd = open(to.p_path, O_WRONLY | O_TRUNC | O_CREAT, |
494 |
|
|
fs->st_mode & ~(S_ISTXT | S_ISUID | S_ISGID)); |
495 |
|
|
|
496 |
|
|
if (to_fd == -1) { |
497 |
|
|
warn("%s", to.p_path); |
498 |
|
|
(void)close(from_fd); |
499 |
|
|
return (1); |
500 |
|
|
} |
501 |
|
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|
502 |
|
|
rval = 0; |
503 |
|
|
|
504 |
|
|
/* |
505 |
|
|
* Mmap and write if less than 8M (the limit is so we don't totally |
506 |
|
|
* trash memory on big files. This is really a minor hack, but it |
507 |
|
|
* wins some CPU back. |
508 |
|
|
*/ |
509 |
|
|
#ifdef VM_AND_BUFFER_CACHE_SYNCHRONIZED |
510 |
|
|
/* XXX broken for 0-size mmap */ |
511 |
|
|
if (fs->st_size <= 8 * 1048576) { |
512 |
|
|
if ((p = mmap(NULL, (size_t)fs->st_size, PROT_READ, |
513 |
|
|
MAP_FILE|MAP_SHARED, from_fd, (off_t)0)) == MAP_FAILED) { |
514 |
|
|
warn("mmap: %s", entp->fts_path); |
515 |
|
|
rval = 1; |
516 |
|
|
} else { |
517 |
|
|
madvise(p, fs->st_size, MADV_SEQUENTIAL); |
518 |
|
|
if (write(to_fd, p, fs->st_size) != fs->st_size) { |
519 |
|
|
warn("%s", to.p_path); |
520 |
|
|
rval = 1; |
521 |
|
|
} |
522 |
|
|
/* Some systems don't unmap on close(2). */ |
523 |
|
|
if (munmap(p, fs->st_size) < 0) { |
524 |
|
|
warn("%s", entp->fts_path); |
525 |
|
|
rval = 1; |
526 |
|
|
} |
527 |
|
|
} |
528 |
|
|
} else |
529 |
|
|
#endif |
530 |
|
|
{ |
531 |
|
|
int skipholes = 0; |
532 |
|
|
struct stat tosb; |
533 |
|
|
if (!fstat(to_fd, &tosb) && S_ISREG(tosb.st_mode)) |
534 |
|
|
skipholes = 1; |
535 |
|
|
while ((rcount = read(from_fd, buf, MAXBSIZE)) > 0) { |
536 |
|
|
if (skipholes && memcmp(buf, zeroes, rcount) == 0) |
537 |
|
|
wcount = lseek(to_fd, rcount, SEEK_CUR) == -1 ? -1 : rcount; |
538 |
|
|
else |
539 |
|
|
wcount = write(to_fd, buf, rcount); |
540 |
|
|
if (rcount != wcount || wcount == -1) { |
541 |
|
|
warn("%s", to.p_path); |
542 |
|
|
rval = 1; |
543 |
|
|
break; |
544 |
|
|
} |
545 |
|
|
} |
546 |
|
|
if (skipholes && rcount >= 0) |
547 |
|
|
rcount = ftruncate(to_fd, lseek(to_fd, 0, SEEK_CUR)); |
548 |
|
|
if (rcount < 0) { |
549 |
|
|
warn("%s", entp->fts_path); |
550 |
|
|
rval = 1; |
551 |
|
|
} |
552 |
|
|
} |
553 |
|
|
|
554 |
|
|
if (rval == 1) { |
555 |
|
|
(void)close(from_fd); |
556 |
|
|
(void)close(to_fd); |
557 |
|
|
return (1); |
558 |
|
|
} |
559 |
|
|
|
560 |
|
|
if (setfile(fs, to_fd)) |
561 |
|
|
rval = 1; |
562 |
|
|
(void)close(from_fd); |
563 |
|
|
if (close(to_fd)) { |
564 |
|
|
warn("%s", to.p_path); |
565 |
|
|
rval = 1; |
566 |
|
|
} |
567 |
|
|
return (rval); |
568 |
|
|
} |
569 |
|
|
|
570 |
|
|
static int |
571 |
|
|
copy_link(FTSENT *p, int exists) |
572 |
|
|
{ |
573 |
|
|
int len; |
574 |
|
|
char linkname[PATH_MAX]; |
575 |
|
|
|
576 |
|
|
if ((len = readlink(p->fts_path, linkname, sizeof(linkname)-1)) == -1) { |
577 |
|
|
warn("readlink: %s", p->fts_path); |
578 |
|
|
return (1); |
579 |
|
|
} |
580 |
|
|
linkname[len] = '\0'; |
581 |
|
|
if (exists && unlink(to.p_path)) { |
582 |
|
|
warn("unlink: %s", to.p_path); |
583 |
|
|
return (1); |
584 |
|
|
} |
585 |
|
|
if (symlink(linkname, to.p_path)) { |
586 |
|
|
warn("symlink: %s", linkname); |
587 |
|
|
return (1); |
588 |
|
|
} |
589 |
|
|
return (setfile(p->fts_statp, -1)); |
590 |
|
|
} |
591 |
|
|
|
592 |
|
|
static int |
593 |
|
|
copy_fifo(struct stat *from_stat, int exists) |
594 |
|
|
{ |
595 |
|
|
if (exists && unlink(to.p_path)) { |
596 |
|
|
warn("unlink: %s", to.p_path); |
597 |
|
|
return (1); |
598 |
|
|
} |
599 |
|
|
if (mkfifo(to.p_path, from_stat->st_mode)) { |
600 |
|
|
warn("mkfifo: %s", to.p_path); |
601 |
|
|
return (1); |
602 |
|
|
} |
603 |
|
|
return (setfile(from_stat, -1)); |
604 |
|
|
} |
605 |
|
|
|
606 |
|
|
static int |
607 |
|
|
copy_special(struct stat *from_stat, int exists) |
608 |
|
|
{ |
609 |
|
|
if (exists && unlink(to.p_path)) { |
610 |
|
|
warn("unlink: %s", to.p_path); |
611 |
|
|
return (1); |
612 |
|
|
} |
613 |
|
|
if (mknod(to.p_path, from_stat->st_mode, from_stat->st_rdev)) { |
614 |
|
|
warn("mknod: %s", to.p_path); |
615 |
|
|
return (1); |
616 |
|
|
} |
617 |
|
|
return (setfile(from_stat, -1)); |
618 |
|
|
} |
619 |
|
|
|
620 |
|
|
|
621 |
|
|
static int |
622 |
|
|
setfile(struct stat *fs, int fd) |
623 |
|
|
{ |
624 |
|
|
struct timespec ts[2]; |
625 |
|
|
int rval; |
626 |
|
|
|
627 |
|
|
rval = 0; |
628 |
|
|
fs->st_mode &= S_ISTXT | S_ISUID | S_ISGID | S_IRWXU | S_IRWXG | S_IRWXO; |
629 |
|
|
|
630 |
|
|
ts[0] = fs->st_atim; |
631 |
|
|
ts[1] = fs->st_mtim; |
632 |
|
|
if (fd >= 0 ? futimens(fd, ts) : |
633 |
|
|
utimensat(AT_FDCWD, to.p_path, ts, AT_SYMLINK_NOFOLLOW)) { |
634 |
|
|
warn("update times: %s", to.p_path); |
635 |
|
|
rval = 1; |
636 |
|
|
} |
637 |
|
|
/* |
638 |
|
|
* Changing the ownership probably won't succeed, unless we're root |
639 |
|
|
* or POSIX_CHOWN_RESTRICTED is not set. Set uid/gid before setting |
640 |
|
|
* the mode; current BSD behavior is to remove all setuid bits on |
641 |
|
|
* chown. If chown fails, lose setuid/setgid bits. |
642 |
|
|
*/ |
643 |
|
|
if (fd >= 0 ? fchown(fd, fs->st_uid, fs->st_gid) : |
644 |
|
|
lchown(to.p_path, fs->st_uid, fs->st_gid)) { |
645 |
|
|
if (errno != EPERM) { |
646 |
|
|
warn("chown: %s", to.p_path); |
647 |
|
|
rval = 1; |
648 |
|
|
} |
649 |
|
|
fs->st_mode &= ~(S_ISTXT | S_ISUID | S_ISGID); |
650 |
|
|
} |
651 |
|
|
if (fd >= 0 ? fchmod(fd, fs->st_mode) : |
652 |
|
|
fchmodat(AT_FDCWD, to.p_path, fs->st_mode, AT_SYMLINK_NOFOLLOW)) { |
653 |
|
|
warn("chmod: %s", to.p_path); |
654 |
|
|
rval = 1; |
655 |
|
|
} |
656 |
|
|
|
657 |
|
|
/* |
658 |
|
|
* XXX |
659 |
|
|
* NFS doesn't support chflags; ignore errors unless there's reason |
660 |
|
|
* to believe we're losing bits. (Note, this still won't be right |
661 |
|
|
* if the server supports flags and we were trying to *remove* flags |
662 |
|
|
* on a file that we copied, i.e., that we didn't create.) |
663 |
|
|
*/ |
664 |
|
|
errno = 0; |
665 |
|
|
if (fd >= 0 ? fchflags(fd, fs->st_flags) : |
666 |
|
|
chflagsat(AT_FDCWD, to.p_path, fs->st_flags, AT_SYMLINK_NOFOLLOW)) |
667 |
|
|
if (errno != EOPNOTSUPP || fs->st_flags != 0) { |
668 |
|
|
warn("chflags: %s", to.p_path); |
669 |
|
|
rval = 1; |
670 |
|
|
} |
671 |
|
|
return (rval); |
672 |
|
|
} |