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Diffstat (limited to 'cpukit/libmisc/shell/utils-cp.c')
-rw-r--r--cpukit/libmisc/shell/utils-cp.c496
1 files changed, 496 insertions, 0 deletions
diff --git a/cpukit/libmisc/shell/utils-cp.c b/cpukit/libmisc/shell/utils-cp.c
new file mode 100644
index 0000000000..7b7c7fc771
--- /dev/null
+++ b/cpukit/libmisc/shell/utils-cp.c
@@ -0,0 +1,496 @@
+/* $NetBSD: utils.c,v 1.29 2005/10/15 18:22:18 christos Exp $ */
+
+/*-
+ * Copyright (c) 1991, 1993, 1994
+ * The Regents of the University of California. All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * 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. 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.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#ifdef HAVE_CONFIG_H
+#include "config.h"
+#endif
+
+#include <sys/cdefs.h>
+#if 0
+#ifndef lint
+#if 0
+static char sccsid[] = "@(#)utils.c 8.3 (Berkeley) 4/1/94";
+#else
+__RCSID("$NetBSD: utils.c,v 1.29 2005/10/15 18:22:18 christos Exp $");
+#endif
+#endif /* not lint */
+#endif
+
+#if 0
+#include <sys/mman.h>
+#endif
+#include <sys/param.h>
+#include <sys/stat.h>
+#include <sys/time.h>
+#include <utime.h>
+
+#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 <unistd.h>
+
+#include "extern-cp.h"
+
+#define lchmod chmod
+#define lchown chown
+
+#define cp_pct(x, y) ((y == 0) ? 0 : (int)(100.0 * (x) / (y)))
+
+int
+set_utimes(const char *file, struct stat *fs)
+{
+ struct utimbuf tv;
+
+ tv.actime = fs->st_atime;
+ tv.modtime = fs->st_mtime;
+
+ if (utime(file, &tv)) {
+ warn("lutimes: %s", file);
+ return (1);
+ }
+ return (0);
+}
+
+int
+copy_file(rtems_shell_cp_globals* cp_globals __attribute__((unused)), FTSENT *entp, int dne)
+{
+#define MAX_READ max_read
+ int max_read;
+ char* buf;
+ struct stat *fs;
+ ssize_t wcount;
+ size_t wresid;
+ off_t wtotal;
+ int ch, checkch, from_fd = 0, rcount, rval, to_fd = 0;
+ char *bufp;
+#ifdef VM_AND_BUFFER_CACHE_SYNCHRONIZED
+ char *p;
+#endif
+
+ fs = entp->fts_statp;
+
+ max_read = fs->st_blksize;
+ if (max_read < (8 * 1024))
+ max_read = 8 * 1024;
+ buf = malloc (max_read);
+ if (!buf)
+ {
+ warn("no memory");
+ return (1);
+ }
+
+ if ((from_fd = open(entp->fts_path, O_RDONLY, 0)) == -1) {
+ warn("%s", entp->fts_path);
+ (void)free(buf);
+ return (1);
+ }
+
+ /*
+ * If the file exists and we're interactive, verify with the user.
+ * If the file DNE, set the mode to be the from file, minus setuid
+ * bits, modified by the umask; arguably wrong, but it makes copying
+ * executables work right and it's been that way forever. (The
+ * other choice is 666 or'ed with the execute bits on the from file
+ * modified by the umask.)
+ */
+ if (!dne) {
+#define YESNO "(y/n [n]) "
+ if (nflag) {
+ if (vflag)
+ printf("%s not overwritten\n", to.p_path);
+ (void)close(from_fd);
+ (void)free(buf);
+ return (0);
+ } 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);
+ (void)free(buf);
+ (void)fprintf(stderr, "not overwritten\n");
+ return (1);
+ }
+ }
+
+ if (fflag) {
+ /* remove existing destination file name,
+ * create a new file */
+ (void)unlink(to.p_path);
+ if (!lflag)
+ to_fd = open(to.p_path, O_WRONLY | O_TRUNC | O_CREAT,
+ fs->st_mode & ~(S_ISUID | S_ISGID));
+ } else {
+ if (!lflag)
+ /* overwrite existing destination file name */
+ to_fd = open(to.p_path, O_WRONLY | O_TRUNC, 0);
+ }
+ } else {
+ if (!lflag)
+ 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);
+ (void)free(buf);
+ return (1);
+ }
+
+ rval = 0;
+
+ if (!lflag) {
+ /*
+ * 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 CCJ_REMOVED_VM_AND_BUFFER_CACHE_SYNCHRONIZED
+ 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);
+ if (wcount <= 0)
+ break;
+ 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)
+ 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
+#endif
+ {
+ wtotal = 0;
+ while ((rcount = read(from_fd, buf, MAX_READ)) > 0) {
+ for (bufp = buf, wresid = rcount; ;
+ bufp += wcount, wresid -= wcount) {
+ wcount = write(to_fd, bufp, wresid);
+ if (wcount <= 0)
+ break;
+ 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)
+ break;
+ }
+ if (wcount != (ssize_t)wresid) {
+ warn("%s", to.p_path);
+ rval = 1;
+ break;
+ }
+ }
+ if (rcount < 0) {
+ warn("%s", entp->fts_path);
+ rval = 1;
+ }
+ }
+ } else {
+ if (link(entp->fts_path, to.p_path)) {
+ warn("%s", to.p_path);
+ rval = 1;
+ }
+ }
+ (void)close(from_fd);
+
+ /*
+ * 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 (!lflag) {
+ if (pflag && setfile(cp_globals, fs, to_fd))
+ rval = 1;
+ if (pflag && preserve_fd_acls(from_fd, to_fd) != 0)
+ rval = 1;
+ (void)close(from_fd);
+ if (close(to_fd)) {
+ warn("%s", to.p_path);
+ rval = 1;
+ }
+ }
+ (void)free(buf);
+ return (rval);
+}
+
+int
+copy_link(rtems_shell_cp_globals* cp_globals, FTSENT *p, int exists)
+{
+ ssize_t len;
+ char llink[PATH_MAX];
+
+ if ((len = readlink(p->fts_path, llink, sizeof(llink) - 1)) == -1) {
+ warn("readlink: %s", p->fts_path);
+ return (1);
+ }
+ llink[len] = '\0';
+ if (exists && unlink(to.p_path)) {
+ warn("unlink: %s", to.p_path);
+ return (1);
+ }
+ if (symlink(llink, to.p_path)) {
+ warn("symlink: %s", llink);
+ return (1);
+ }
+ return (pflag ? setfile(cp_globals, p->fts_statp, -1) : 0);
+}
+
+int
+copy_fifo(rtems_shell_cp_globals* cp_globals, struct stat *from_stat, int exists)
+{
+ if (exists && unlink(to.p_path)) {
+ warn("unlink: %s", to.p_path);
+ return (1);
+ }
+ if (mkfifo(to.p_path, from_stat->st_mode)) {
+ warn("mkfifo: %s", to.p_path);
+ return (1);
+ }
+ return (pflag ? setfile(cp_globals, from_stat, -1) : 0);
+}
+
+int
+copy_special(rtems_shell_cp_globals* cp_globals, struct stat *from_stat, int exists)
+{
+ if (exists && unlink(to.p_path)) {
+ warn("unlink: %s", to.p_path);
+ return (1);
+ }
+ if (mknod(to.p_path, from_stat->st_mode, from_stat->st_rdev)) {
+ warn("mknod: %s", to.p_path);
+ return (1);
+ }
+ return (pflag ? setfile(cp_globals, from_stat, -1) : 0);
+}
+
+#define TIMESPEC_TO_TIMEVAL(tv, ts) { \
+ (tv)->tv_sec = *(ts); \
+ (tv)->tv_usec = 0; \
+}
+
+#define st_atimespec st_atime
+#define st_mtimespec st_mtime
+#define lutimes utimes
+
+int
+setfile(rtems_shell_cp_globals* cp_globals, struct stat *fs, int fd)
+{
+ static struct timeval tv[2];
+ struct stat ts;
+ int rval, gotstat, islink, fdval;
+
+ rval = 0;
+ 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);
+#if 0
+ if (islink ? lutimes(to.p_path, tv) : utimes(to.p_path, tv)) {
+ warn("%sutimes: %s", islink ? "l" : "", to.p_path);
+ rval = 1;
+ }
+#endif
+ 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 (!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("chown: %s", 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("chmod: %s", to.p_path);
+ rval = 1;
+ }
+
+#if 0
+ if (!gotstat || fs->st_flags != ts.st_flags)
+ if (fdval ?
+ fchflags(fd, fs->st_flags) :
+ (islink ? (errno = ENOSYS) :
+ chflags(to.p_path, fs->st_flags))) {
+ warn("chflags: %s", to.p_path);
+ rval = 1;
+ }
+#endif
+
+ return (rval);
+}
+
+int
+preserve_fd_acls(int source_fd __attribute__((unused)), int dest_fd __attribute__((unused)))
+{
+#if 0
+ 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);
+ }
+ 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);
+ }
+#endif
+ return (0);
+}
+
+int
+preserve_dir_acls(struct stat *fs __attribute__((unused)), char *source_dir __attribute__((unused)), char *dest_dir __attribute__((unused)))
+{
+#if 0
+ 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);
+ }
+#endif
+ return (0);
+}
+
+void
+usage(rtems_shell_cp_globals* cp_globals)
+{
+ (void)fprintf(stderr, "%s\n%s\n",
+"usage: cp [-R [-H | -L | -P]] [-f | -i | -n] [-alpv] source_file target_file",
+" cp [-R [-H | -L | -P]] [-f | -i | -n] [-alpv] source_file ... "
+"target_directory");
+ longjmp (cp_globals->exit_jmp, 1);
+}
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