* 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.
#endif
#endif /* not lint */
#include <sys/cdefs.h>
-__RCSID("$FreeBSD: src/bin/cp/utils.c,v 1.38 2002/07/31 16:52:16 markm Exp $");
+__FBSDID("$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/time.h>
#include <sys/stat.h>
#ifdef VM_AND_BUFFER_CACHE_SYNCHRONIZED
#include <sys/mman.h>
#include <stdlib.h>
#include <sysexits.h>
#include <unistd.h>
+#include <locale.h>
#ifdef __APPLE__
+#include <sys/time.h>
#include <copyfile.h>
#include <string.h>
#include <sys/mount.h>
-#endif
+#include <get_compat.h>
+#include <sys/attr.h>
+#include <sys/clonefile.h>
+#else
+#define COMPAT_MODE(a,b) (1)
+#endif /* __APPLE__ */
#include "extern.h"
+#define cp_pct(x,y) (int)(100.0 * (double)(x) / (double)(y))
+
+/* Memory strategy threshold, in pages: if physmem is larger then this, use a
+ * large buffer */
+#define PHYSPAGES_THRESHOLD (32*1024)
+
+/* Maximum buffer size in bytes - do not allow it to grow larger than this */
+#define BUFSIZE_MAX (2*1024*1024)
+
+/* Small (default) buffer size in bytes. It's inefficient for this to be
+ * smaller than MAXPHYS */
+#define BUFSIZE_SMALL (MAXPHYS)
int
-copy_file(FTSENT *entp, int dne)
+copy_file(const FTSENT *entp, int dne)
{
- static char buf[MAXBSIZE];
+ static char *buf = NULL;
+ static size_t bufsize;
struct stat *fs;
- int ch, checkch, from_fd, rcount, rval, to_fd;
+ int ch, checkch, from_fd, rval, to_fd;
+ ssize_t rcount;
ssize_t wcount;
size_t wresid;
+ off_t wtotal;
char *bufp;
+ char resp[] = {'\0', '\0'};
#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);
if (nflag) {
if (vflag)
printf("%s not overwritten\n", to.p_path);
- close(from_fd);
- return (0);
+ (void)close(from_fd);
+ return (1);
} else if (iflag) {
(void)fprintf(stderr, "overwrite %s? %s",
to.p_path, YESNO);
+
+ /* Load user specified locale */
+ setlocale(LC_MESSAGES, "");
+
checkch = ch = getchar();
while (ch != '\n' && ch != EOF)
ch = getchar();
- if (checkch != 'y' && checkch != 'Y') {
+
+ /* only care about the first character */
+ resp[0] = checkch;
+
+ if (rpmatch(resp) != 1) {
(void)close(from_fd);
(void)fprintf(stderr, "not overwritten\n");
return (1);
}
}
- 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 */
+ if (cflag) {
+ (void)unlink(to.p_path);
+ int error = clonefile(entp->fts_path, to.p_path, 0);
+ if (error)
+ warn("%s: clonefile failed", to.p_path);
+ (void)close(from_fd);
+ return error == 0 ? 0 : 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);
- } else
+ 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);
+ }
+ } else {
+
+ if (cflag) {
+ int error = clonefile(entp->fts_path, to.p_path, 0);
+ if (error)
+ warn("%s: clonefile failed", to.p_path);
+ (void)close(from_fd);
+ return error == 0 ? 0 : 1;
+ }
+
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);
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);
- }
- }
+ 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);
+ }
/*
* 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 (S_ISREG(fs->st_mode) && fs->st_size <= 8 * 1048576) {
+ 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;
}
} else
#endif
{
- while ((rcount = read(from_fd, buf, MAXBSIZE)) > 0) {
+ if (buf == NULL) {
+ /*
+ * Note that buf and bufsize are static. If
+ * malloc() fails, it will fail at the start
+ * and not copy only some files.
+ */
+ if (sysconf(_SC_PHYS_PAGES) >
+ PHYSPAGES_THRESHOLD)
+ bufsize = MIN(BUFSIZE_MAX, MAXPHYS * 8);
+ else
+ bufsize = BUFSIZE_SMALL;
+ buf = malloc(bufsize);
+ if (buf == NULL)
+ err(1, "Not enough memory");
+ }
+ wtotal = 0;
+ while ((rcount = read(from_fd, buf, bufsize)) > 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;
}
}
}
-#ifdef __APPLE__
- if (pflag)
- copyfile(entp->fts_path, to.p_path, 0, COPYFILE_XATTR | COPYFILE_ACL);
- else
- copyfile(entp->fts_path, to.p_path, 0, COPYFILE_XATTR);
-#endif
/*
* 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 (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);
}
int
-copy_link(FTSENT *p, int exists)
+copy_link(const FTSENT *p, int exists)
{
- int len;
+ ssize_t len;
char llink[PATH_MAX];
if ((len = readlink(p->fts_path, llink, sizeof(llink) - 1)) == -1) {
return (1);
}
#ifdef __APPLE__
- copyfile(p->fts_path, to.p_path, 0, COPYFILE_XATTR | COPYFILE_NOFOLLOW_SRC);
+ 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 (0);
+ return (pflag ? setfile(p->fts_statp, -1) : 0);
}
int
warn("mkfifo: %s", to.p_path);
return (1);
}
- return (pflag ? setfile(from_stat, 0) : 0);
+ return (pflag ? setfile(from_stat, -1) : 0);
}
int
warn("mknod: %s", to.p_path);
return (1);
}
- return (pflag ? setfile(from_stat, 0) : 0);
+ return (pflag ? setfile(from_stat, -1) : 0);
}
int
setfile(struct stat *fs, int fd)
{
- static struct timeval tv[2];
+ struct attrlist ts_req = {};
struct stat ts;
- int rval;
- int gotstat;
+ int rval, gotstat, islink, fdval;
+ struct {
+ struct timespec mtime;
+ struct timespec atime;
+ } set_ts;
rval = 0;
- fs->st_mode &= S_ISUID | S_ISGID | S_ISVTX |
- 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;
+ unsigned int options = islink ? FSOPT_NOFOLLOW : 0;
- TIMESPEC_TO_TIMEVAL(&tv[0], &fs->st_atimespec);
- TIMESPEC_TO_TIMEVAL(&tv[1], &fs->st_mtimespec);
- if (utimes(to.p_path, tv)) {
- warn("utimes: %s", to.p_path);
+ ts_req.bitmapcount = ATTR_BIT_MAP_COUNT;
+ ts_req.commonattr = ATTR_CMN_MODTIME | ATTR_CMN_ACCTIME;
+ set_ts.mtime = fs->st_mtimespec;
+ set_ts.atime = fs->st_atimespec;
+
+ if (fdval ? fsetattrlist(fd, &ts_req, &set_ts, sizeof(set_ts), options) :
+ setattrlist(to.p_path, &ts_req, &set_ts, sizeof(set_ts), options)) {
+ warn("%ssetattrlist: %s", fdval ? "f" : "", to.p_path);
rval = 1;
}
- if (fd ? fstat(fd, &ts) : stat(to.p_path, &ts))
+ if (fdval ? fstat(fd, &ts) : (islink ? lstat(to.p_path, &ts) :
+ stat(to.p_path, &ts))) {
gotstat = 0;
- else {
+ } else {
gotstat = 1;
- ts.st_mode &= S_ISUID | S_ISGID | S_ISVTX |
- S_IRWXU | S_IRWXG | S_IRWXO;
+ 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
* the mode; current BSD behavior is to remove all setuid bits on
* chown. If chown fails, lose setuid/setgid bits.
*/
- if (!gotstat || fs->st_uid != ts.st_uid || fs->st_gid != ts.st_gid)
- if (fd ? fchown(fd, fs->st_uid, fs->st_gid) :
- chown(to.p_path, fs->st_uid, fs->st_gid)) {
+ 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", fdval ? "f" : (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", fdval ? "f" : (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))) {
if (errno != EPERM) {
- warn("chown: %s", to.p_path);
+ warn("%schflags: %s", fdval ? "f" : (islink ? "l" : ""), to.p_path);
rval = 1;
}
- fs->st_mode &= ~(S_ISUID | S_ISGID);
}
+ }
+ return (rval);
+}
- if (!gotstat || fs->st_mode != ts.st_mode)
- if (fd ? fchmod(fd, fs->st_mode) : chmod(to.p_path, fs->st_mode)) {
- warn("chmod: %s", to.p_path);
- rval = 1;
- }
+#ifndef __APPLE__
+int
+preserve_fd_acls(int source_fd, int dest_fd)
+{
+ struct acl *aclp;
+ acl_t acl;
- if (!gotstat || fs->st_flags != ts.st_flags)
- if (fd ?
- fchflags(fd, fs->st_flags) : chflags(to.p_path, fs->st_flags)) {
- warn("chflags: %s", to.p_path);
- rval = 1;
- }
+ 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);
+ }
+ 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);
+}
- return (rval);
+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;
+ }
+ /*
+ * 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(void)
{
+ if (COMPAT_MODE("bin/cp", "unix2003")) {
(void)fprintf(stderr, "%s\n%s\n",
-"usage: cp [-R [-H | -L | -P]] [-f | -i | -n] [-pv] src target",
-" cp [-R [-H | -L | -P]] [-f | -i | -n] [-pv] src1 ... srcN directory");
+"usage: cp [-R [-H | -L | -P]] [-fi | -n] [-apvXc] source_file target_file",
+" cp [-R [-H | -L | -P]] [-fi | -n] [-apvXc] source_file ... "
+"target_directory");
+ } else {
+ (void)fprintf(stderr, "%s\n%s\n",
+"usage: cp [-R [-H | -L | -P]] [-f | -i | -n] [-apvXc] source_file target_file",
+" cp [-R [-H | -L | -P]] [-f | -i | -n] [-apvXc] source_file ... "
+"target_directory");
+ }
exit(EX_USAGE);
}
projects / apple / file_cmds.git / blobdiff