-/* $NetBSD: utils.c,v 1.15 1998/08/19 01:29:11 thorpej Exp $ */
-
/*-
* Copyright (c) 1991, 1993, 1994
* The Regents of the University of California. All rights reserved.
* 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. All advertising materials mentioning features or use of this software
- * must display the following acknowledgement:
- * This product includes software developed by the University of
- * California, Berkeley and its contributors.
* 4. 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.
* SUCH DAMAGE.
*/
-#include <sys/cdefs.h>
#ifndef lint
#if 0
static char sccsid[] = "@(#)utils.c 8.3 (Berkeley) 4/1/94";
-#else
-__RCSID("$NetBSD: utils.c,v 1.15 1998/08/19 01:29:11 thorpej Exp $");
#endif
#endif /* not lint */
+#include <sys/cdefs.h>
+__FBSDID("$FreeBSD: src/bin/cp/utils.c,v 1.46 2005/09/05 04:36:08 csjp Exp $");
+#include <sys/types.h>
+#include <sys/acl.h>
#include <sys/param.h>
#include <sys/stat.h>
+#ifdef VM_AND_BUFFER_CACHE_SYNCHRONIZED
#include <sys/mman.h>
-#include <sys/time.h>
+#endif
#include <err.h>
#include <errno.h>
#include <fcntl.h>
#include <fts.h>
+#include <limits.h>
#include <stdio.h>
#include <stdlib.h>
-#include <string.h>
+#include <sysexits.h>
#include <unistd.h>
-#include "extern.h"
-
-int
-set_utimes(file, fs)
- const char * file;
- struct stat * fs;
-{
- static struct timeval tv[2];
-
- TIMESPEC_TO_TIMEVAL(&tv[0], &fs->st_atimespec);
- TIMESPEC_TO_TIMEVAL(&tv[1], &fs->st_mtimespec);
+#ifdef __APPLE__
+#include <sys/time.h>
+#include <copyfile.h>
+#include <string.h>
+#include <sys/mount.h>
+#include <get_compat.h>
+#else
+#define COMPAT_MODE(a,b) (1)
+#endif /* __APPLE__ */
- if (utimes(file, tv)) {
- warn("utimes: %s", file);
- return (1);
- }
- return (0);
-}
+#include "extern.h"
+#define cp_pct(x,y) (int)(100.0 * (double)(x) / (double)(y))
int
-copy_file(entp, dne)
- FTSENT *entp;
- int dne;
+copy_file(const FTSENT *entp, int dne)
{
static char buf[MAXBSIZE];
- struct stat to_stat, *fs;
- int ch, checkch, from_fd, rcount, rval, to_fd, wcount;
+ struct stat *fs;
+ int ch, checkch, from_fd, rcount, rval, to_fd;
+ ssize_t wcount;
+ size_t wresid;
+ off_t wtotal;
+ char *bufp;
#ifdef VM_AND_BUFFER_CACHE_SYNCHRONIZED
char *p;
#endif
-
+ mode_t mode = 0;
+ struct stat to_stat;
+
if ((from_fd = open(entp->fts_path, O_RDONLY, 0)) == -1) {
warn("%s", entp->fts_path);
return (1);
* modified by the umask.)
*/
if (!dne) {
- if (iflag) {
- (void)fprintf(stderr, "overwrite %s? ", to.p_path);
+#define YESNO "(y/n [n]) "
+ if (nflag) {
+ if (vflag)
+ printf("%s not overwritten\n", to.p_path);
+ (void)close(from_fd);
+ return (1);
+ } else if (iflag) {
+ (void)fprintf(stderr, "overwrite %s? %s",
+ to.p_path, YESNO);
checkch = ch = getchar();
while (ch != '\n' && ch != EOF)
ch = getchar();
if (checkch != 'y' && checkch != 'Y') {
(void)close(from_fd);
- return (0);
+ (void)fprintf(stderr, "not overwritten\n");
+ return (1);
+ }
+ }
+
+ if (COMPAT_MODE("bin/cp", "unix2003")) {
+ /* first try to overwrite existing destination file name */
+ to_fd = open(to.p_path, O_WRONLY | O_TRUNC, 0);
+ if (to_fd == -1) {
+ if (fflag) {
+ /* Only if it fails remove file and create a new one */
+ (void)unlink(to.p_path);
+ to_fd = open(to.p_path, O_WRONLY | O_TRUNC | O_CREAT,
+ fs->st_mode & ~(S_ISUID | S_ISGID));
}
+ }
+ } else {
+ if (fflag) {
+ /* remove existing destination file name,
+ * create a new file */
+ (void)unlink(to.p_path);
+ to_fd = open(to.p_path, O_WRONLY | O_TRUNC | O_CREAT,
+ fs->st_mode & ~(S_ISUID | S_ISGID));
+ } else
+ /* overwrite existing destination file name */
+ to_fd = open(to.p_path, O_WRONLY | O_TRUNC, 0);
}
- /* overwrite existing destination file name */
- to_fd = open(to.p_path, O_WRONLY | O_TRUNC, 0);
} else
to_fd = open(to.p_path, O_WRONLY | O_TRUNC | O_CREAT,
fs->st_mode & ~(S_ISUID | S_ISGID));
- if (to_fd == -1 && fflag) {
- /*
- * attempt to remove existing destination file name and
- * create a new file
- */
- (void)unlink(to.p_path);
- to_fd = open(to.p_path, O_WRONLY | O_TRUNC | O_CREAT,
- fs->st_mode & ~(S_ISUID | S_ISGID));
- }
-
if (to_fd == -1) {
warn("%s", to.p_path);
(void)close(from_fd);
- return (1);;
+ return (1);
}
rval = 0;
+#ifdef __APPLE__
+ if (S_ISREG(fs->st_mode)) {
+ struct statfs sfs;
+
+ /*
+ * Pre-allocate blocks for the destination file if it
+ * resides on Xsan.
+ */
+ if (fstatfs(to_fd, &sfs) == 0 &&
+ strcmp(sfs.f_fstypename, "acfs") == 0) {
+ fstore_t fst;
+
+ fst.fst_flags = 0;
+ fst.fst_posmode = F_PEOFPOSMODE;
+ fst.fst_offset = 0;
+ fst.fst_length = fs->st_size;
+
+ (void) fcntl(to_fd, F_PREALLOCATE, &fst);
+ }
+ }
+#endif /* __APPLE__ */
+
+ if (fstat(to_fd, &to_stat) != -1) {
+ mode = to_stat.st_mode;
+ if ((mode & (S_IRWXG|S_IRWXO))
+ && fchmod(to_fd, mode & ~(S_IRWXG|S_IRWXO))) {
+ if (errno != EPERM) /* we have write access but do not own the file */
+ warn("%s: fchmod failed", to.p_path);
+ mode = 0;
+ }
+ } else {
+ warn("%s", to.p_path);
+ }
/*
- * There's no reason to do anything other than close the file
- * now if it's empty, so let's not bother.
+ * Mmap and write if less than 8M (the limit is so we don't totally
+ * trash memory on big files. This is really a minor hack, but it
+ * wins some CPU back.
*/
- if (fs->st_size > 0) {
- /*
- * Mmap and write if less than 8M (the limit is so we don't totally
- * trash memory on big files). This is really a minor hack, but it
- * wins some CPU back.
- */
#ifdef VM_AND_BUFFER_CACHE_SYNCHRONIZED
- if (fs->st_size <= 8 * 1048576) {
- if ((p = mmap(NULL, (size_t)fs->st_size, PROT_READ,
- MAP_FILE|MAP_SHARED, from_fd, (off_t)0)) == (char *)-1) {
+ if (S_ISREG(fs->st_mode) && fs->st_size > 0 &&
+ fs->st_size <= 8 * 1048576) {
+ if ((p = mmap(NULL, (size_t)fs->st_size, PROT_READ,
+ MAP_SHARED, from_fd, (off_t)0)) == MAP_FAILED) {
+ warn("%s", entp->fts_path);
+ rval = 1;
+ } else {
+ wtotal = 0;
+ for (bufp = p, wresid = fs->st_size; ;
+ bufp += wcount, wresid -= (size_t)wcount) {
+ wcount = write(to_fd, bufp, wresid);
+ wtotal += wcount;
+ if (info) {
+ info = 0;
+ (void)fprintf(stderr,
+ "%s -> %s %3d%%\n",
+ entp->fts_path, to.p_path,
+ cp_pct(wtotal, fs->st_size));
+
+ }
+ if (wcount >= (ssize_t)wresid || wcount <= 0)
+ break;
+ }
+ if (wcount != (ssize_t)wresid) {
+ warn("%s", to.p_path);
+ rval = 1;
+ }
+ /* Some systems don't unmap on close(2). */
+ if (munmap(p, fs->st_size) < 0) {
warn("%s", entp->fts_path);
rval = 1;
- } else {
- if (write(to_fd, p, fs->st_size) != fs->st_size) {
- warn("%s", to.p_path);
- rval = 1;
- }
- /* Some systems don't unmap on close(2). */
- if (munmap(p, fs->st_size) < 0) {
- warn("%s", entp->fts_path);
- rval = 1;
- }
}
- } else
+ }
+ } else
#endif
- {
- while ((rcount = read(from_fd, buf, MAXBSIZE)) > 0) {
- wcount = write(to_fd, buf, rcount);
- if (rcount != wcount || wcount == -1) {
- warn("%s", to.p_path);
- rval = 1;
- break;
+ {
+ wtotal = 0;
+ while ((rcount = read(from_fd, buf, MAXBSIZE)) > 0) {
+ for (bufp = buf, wresid = rcount; ;
+ bufp += wcount, wresid -= wcount) {
+ wcount = write(to_fd, bufp, wresid);
+ wtotal += wcount;
+ if (info) {
+ info = 0;
+ (void)fprintf(stderr,
+ "%s -> %s %3d%%\n",
+ entp->fts_path, to.p_path,
+ cp_pct(wtotal, fs->st_size));
+
}
+ if (wcount >= (ssize_t)wresid || wcount <= 0)
+ break;
}
- if (rcount < 0) {
- warn("%s", entp->fts_path);
+ if (wcount != (ssize_t)wresid) {
+ warn("%s", to.p_path);
rval = 1;
+ break;
}
}
+ if (rcount < 0) {
+ warn("%s", entp->fts_path);
+ rval = 1;
+ }
}
- if (rval == 1) {
- (void)close(from_fd);
- (void)close(to_fd);
- return (1);
+ /*
+ * Don't remove the target even after an error. The target might
+ * not be a regular file, or its attributes might be important,
+ * or its contents might be irreplaceable. It would only be safe
+ * to remove it if we created it and its length is 0.
+ */
+ if (mode != 0)
+ if (fchmod(to_fd, mode))
+ warn("%s: fchmod failed", to.p_path);
+#ifdef __APPLE__
+ /* do these before setfile in case copyfile changes mtime */
+ if (!Xflag && S_ISREG(fs->st_mode)) { /* skip devices, etc */
+ if (fcopyfile(from_fd, to_fd, NULL, COPYFILE_XATTR) < 0)
+ warn("%s: could not copy extended attributes to %s", entp->fts_path, to.p_path);
}
-
if (pflag && setfile(fs, to_fd))
rval = 1;
- /*
- * If the source was setuid or setgid, lose the bits unless the
- * copy is owned by the same user and group.
- */
-#define RETAINBITS \
- (S_ISUID | S_ISGID | S_ISVTX | S_IRWXU | S_IRWXG | S_IRWXO)
- else if (fs->st_mode & (S_ISUID | S_ISGID) && fs->st_uid == myuid) {
- if (fstat(to_fd, &to_stat)) {
- warn("%s", to.p_path);
- rval = 1;
- } else if (fs->st_gid == to_stat.st_gid &&
- fchmod(to_fd, fs->st_mode & RETAINBITS & ~myumask)) {
- warn("%s", to.p_path);
- rval = 1;
- }
+ if (pflag) {
+ /* If this ACL denies writeattr then setfile will fail... */
+ if (fcopyfile(from_fd, to_fd, NULL, COPYFILE_ACL) < 0)
+ warn("%s: could not copy ACL to %s", entp->fts_path, to.p_path);
}
+#else /* !__APPLE__ */
+ if (pflag && setfile(fs, to_fd))
+ rval = 1;
+ if (pflag && preserve_fd_acls(from_fd, to_fd) != 0)
+ rval = 1;
+#endif /* __APPLE__ */
(void)close(from_fd);
if (close(to_fd)) {
warn("%s", to.p_path);
rval = 1;
}
- /* set the mod/access times now after close of the fd */
- if (pflag && set_utimes(to.p_path, fs)) {
- rval = 1;
- }
return (rval);
}
int
-copy_link(p, exists)
- FTSENT *p;
- int exists;
+copy_link(const FTSENT *p, int exists)
{
int len;
- char target[MAXPATHLEN];
+ char llink[PATH_MAX];
- if ((len = readlink(p->fts_path, target, sizeof(target))) == -1) {
+ if ((len = readlink(p->fts_path, llink, sizeof(llink) - 1)) == -1) {
warn("readlink: %s", p->fts_path);
return (1);
}
- target[len] = '\0';
+ llink[len] = '\0';
if (exists && unlink(to.p_path)) {
warn("unlink: %s", to.p_path);
return (1);
}
- if (symlink(target, to.p_path)) {
- warn("symlink: %s", target);
+ if (symlink(llink, to.p_path)) {
+ warn("symlink: %s", llink);
return (1);
}
- return (pflag ? setfile(p->fts_statp, 0) : 0);
+#ifdef __APPLE__
+ if (!Xflag)
+ if (copyfile(p->fts_path, to.p_path, NULL, COPYFILE_XATTR | COPYFILE_NOFOLLOW_SRC) <0)
+ warn("%s: could not copy extended attributes to %s",
+ p->fts_path, to.p_path);
+#endif
+ return (pflag ? setfile(p->fts_statp, -1) : 0);
}
int
-copy_fifo(from_stat, exists)
- struct stat *from_stat;
- int exists;
+copy_fifo(struct stat *from_stat, int exists)
{
if (exists && unlink(to.p_path)) {
warn("unlink: %s", to.p_path);
warn("mkfifo: %s", to.p_path);
return (1);
}
- return (pflag ? setfile(from_stat, 0) : 0);
+ return (pflag ? setfile(from_stat, -1) : 0);
}
int
-copy_special(from_stat, exists)
- struct stat *from_stat;
- int exists;
+copy_special(struct stat *from_stat, int exists)
{
if (exists && unlink(to.p_path)) {
warn("unlink: %s", to.p_path);
warn("mknod: %s", to.p_path);
return (1);
}
- return (pflag ? setfile(from_stat, 0) : 0);
+ return (pflag ? setfile(from_stat, -1) : 0);
}
-
-/*
- * Function: setfile
- *
- * Purpose:
- * Set the owner/group/permissions for the "to" file to the information
- * in the stat structure. If fd is zero, also call set_utimes() to set
- * the mod/access times. If fd is non-zero, the caller must do a utimes
- * itself after close(fd).
- */
int
-setfile(fs, fd)
- struct stat *fs;
- int fd;
+setfile(struct stat *fs, int fd)
{
- int rval, islink;
+ static struct timeval tv[2];
+ struct stat ts;
+ int rval, gotstat, islink, fdval;
rval = 0;
- islink = S_ISLNK(fs->st_mode);
- fs->st_mode &= S_ISUID | S_ISGID | S_IRWXU | S_IRWXG | S_IRWXO;
+ fdval = fd != -1;
+ islink = !fdval && S_ISLNK(fs->st_mode);
+ fs->st_mode &= S_ISUID | S_ISGID | S_ISVTX |
+ S_IRWXU | S_IRWXG | S_IRWXO;
+ TIMESPEC_TO_TIMEVAL(&tv[0], &fs->st_atimespec);
+ TIMESPEC_TO_TIMEVAL(&tv[1], &fs->st_mtimespec);
+#ifdef __APPLE__
+ if (islink ? 0 : utimes(to.p_path, tv)) {
+#else
+ if (islink ? lutimes(to.p_path, tv) : utimes(to.p_path, tv)) {
+#endif /* __APPLE__ */
+ warn("%sutimes: %s", islink ? "l" : "", to.p_path);
+ rval = 1;
+ }
+ if (fdval ? fstat(fd, &ts) :
+ (islink ? lstat(to.p_path, &ts) : stat(to.p_path, &ts)))
+ gotstat = 0;
+ else {
+ gotstat = 1;
+ ts.st_mode &= S_ISUID | S_ISGID | S_ISVTX |
+ S_IRWXU | S_IRWXG | S_IRWXO;
+ }
/*
* Changing the ownership probably won't succeed, unless we're root
* or POSIX_CHOWN_RESTRICTED is not set. Set uid/gid before setting
* the mode; current BSD behavior is to remove all setuid bits on
* chown. If chown fails, lose setuid/setgid bits.
*/
- if (fd ? fchown(fd, fs->st_uid, fs->st_gid) :
-#ifdef __APPLE__
- chown(to.p_path, fs->st_uid, fs->st_gid)) {
-#else
- lchown(to.p_path, fs->st_uid, fs->st_gid)) {
-#endif
- if (errno != EPERM) {
- warn("chown: %s", to.p_path);
+ if (!gotstat || fs->st_uid != ts.st_uid || fs->st_gid != ts.st_gid)
+ if (fdval ? fchown(fd, fs->st_uid, fs->st_gid) :
+ (islink ? lchown(to.p_path, fs->st_uid, fs->st_gid) :
+ chown(to.p_path, fs->st_uid, fs->st_gid))) {
+ if (errno != EPERM) {
+ warn("%schown: %s", islink ? "l" : "", to.p_path);
+ rval = 1;
+ }
+ fs->st_mode &= ~(S_ISUID | S_ISGID);
+ }
+
+ if (!gotstat || fs->st_mode != ts.st_mode)
+ if (fdval ? fchmod(fd, fs->st_mode) :
+ (islink ? lchmod(to.p_path, fs->st_mode) :
+ chmod(to.p_path, fs->st_mode))) {
+ warn("%schmod: %s", islink ? "l" : "", to.p_path);
+ rval = 1;
+ }
+
+ if (!gotstat || fs->st_flags != ts.st_flags)
+ if (fdval ?
+ fchflags(fd, fs->st_flags) :
+ (islink ? lchflags(to.p_path, fs->st_flags) :
+ chflags(to.p_path, fs->st_flags))) {
+ warn("%schflags: %s", islink ? "l" : "", to.p_path);
rval = 1;
}
- fs->st_mode &= ~(S_ISUID | S_ISGID);
+
+ return (rval);
+}
+
+#ifndef __APPLE__
+int
+preserve_fd_acls(int source_fd, int dest_fd)
+{
+ struct acl *aclp;
+ acl_t acl;
+
+ if (fpathconf(source_fd, _PC_ACL_EXTENDED) != 1 ||
+ fpathconf(dest_fd, _PC_ACL_EXTENDED) != 1)
+ return (0);
+ acl = acl_get_fd(source_fd);
+ if (acl == NULL) {
+ warn("failed to get acl entries while setting %s", to.p_path);
+ return (1);
}
-#ifdef __APPLE__
- if (fd ? fchmod(fd, fs->st_mode) : chmod(to.p_path, fs->st_mode)) {
-#else
- if (fd ? fchmod(fd, fs->st_mode) : lchmod(to.p_path, fs->st_mode)) {
-#endif
- warn("chmod: %s", to.p_path);
- rval = 1;
+ aclp = &acl->ats_acl;
+ if (aclp->acl_cnt == 3)
+ return (0);
+ if (acl_set_fd(dest_fd, acl) < 0) {
+ warn("failed to set acl entries for %s", to.p_path);
+ return (1);
}
+ return (0);
+}
- if (!islink) {
- /*
- * XXX
- * NFS doesn't support chflags; ignore errors unless
- * there's reason to believe we're losing bits.
- * (Note, this still won't be right if the server
- * supports flags and we were trying to *remove* flags
- * on a file that we copied, i.e., that we didn't create.)
- */
- errno = 0;
- if (fd ? fchflags(fd, fs->st_flags) :
- chflags(to.p_path, fs->st_flags))
- if (errno != EOPNOTSUPP || fs->st_flags != 0) {
- warn("chflags: %s", to.p_path);
- rval = 1;
- }
+int
+preserve_dir_acls(struct stat *fs, char *source_dir, char *dest_dir)
+{
+ acl_t (*aclgetf)(const char *, acl_type_t);
+ int (*aclsetf)(const char *, acl_type_t, acl_t);
+ struct acl *aclp;
+ acl_t acl;
+
+ if (pathconf(source_dir, _PC_ACL_EXTENDED) != 1 ||
+ pathconf(dest_dir, _PC_ACL_EXTENDED) != 1)
+ return (0);
+ /*
+ * If the file is a link we will not follow it
+ */
+ if (S_ISLNK(fs->st_mode)) {
+ aclgetf = acl_get_link_np;
+ aclsetf = acl_set_link_np;
+ } else {
+ aclgetf = acl_get_file;
+ aclsetf = acl_set_file;
}
- /* if fd is non-zero, caller must call set_utimes() after close() */
- if (fd == 0 && set_utimes(to.p_path, fs))
- rval = 1;
- return (rval);
+ /*
+ * Even if there is no ACL_TYPE_DEFAULT entry here, a zero
+ * size ACL will be returned. So it is not safe to simply
+ * check the pointer to see if the default ACL is present.
+ */
+ acl = aclgetf(source_dir, ACL_TYPE_DEFAULT);
+ if (acl == NULL) {
+ warn("failed to get default acl entries on %s",
+ source_dir);
+ return (1);
+ }
+ aclp = &acl->ats_acl;
+ if (aclp->acl_cnt != 0 && aclsetf(dest_dir,
+ ACL_TYPE_DEFAULT, acl) < 0) {
+ warn("failed to set default acl entries on %s",
+ dest_dir);
+ return (1);
+ }
+ acl = aclgetf(source_dir, ACL_TYPE_ACCESS);
+ if (acl == NULL) {
+ warn("failed to get acl entries on %s", source_dir);
+ return (1);
+ }
+ aclp = &acl->ats_acl;
+ if (aclsetf(dest_dir, ACL_TYPE_ACCESS, acl) < 0) {
+ warn("failed to set acl entries on %s", dest_dir);
+ return (1);
+ }
+ return (0);
}
+#endif /* !__APPLE__ */
void
-usage()
+usage(void)
{
+
+ if (COMPAT_MODE("bin/cp", "unix2003")) {
+ (void)fprintf(stderr, "%s\n%s\n",
+"usage: cp [-R [-H | -L | -P]] [-fi | -n] [-apvX] source_file target_file",
+" cp [-R [-H | -L | -P]] [-fi | -n] [-apvX] source_file ... "
+"target_directory");
+ } else {
(void)fprintf(stderr, "%s\n%s\n",
- "usage: cp [-R [-H | -L | -P]] [-f | -i] [-p] src target",
- " cp [-R [-H | -L | -P]] [-f | -i] [-p] src1 ... srcN directory");
- exit(1);
- /* NOTREACHED */
+"usage: cp [-R [-H | -L | -P]] [-f | -i | -n] [-apvX] source_file target_file",
+" cp [-R [-H | -L | -P]] [-f | -i | -n] [-apvX] source_file ... "
+"target_directory");
+ }
+ exit(EX_USAGE);
}
projects / apple / file_cmds.git / blobdiff