-#include "internal.h"
-#include <stdio.h>
+/* 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
+ *
+ */
+
+#include <sys/types.h>
#include <sys/stat.h>
-#include <sys/fcntl.h>
-#include <sys/param.h>
+#include <unistd.h>
+#include <fcntl.h>
+#include <utime.h>
#include <errno.h>
+#include <dirent.h>
+#include <stdlib.h>
-const char cp_usage[] = "cp [-r] source-file destination-file\n"
-"\t\tcp [-r] source-file [source-file ...] destination-directory\n"
-"\n"
-"\tCopy the source files to the destination.\n"
-"\n"
-"\t-r:\tRecursively copy all files and directories\n"
-"\t\tunder the argument directory.";
+#include "busybox.h"
-extern int
-cp_fn(const struct FileInfo * i)
+extern int cp_main(int argc, char **argv)
{
- int sourceFd;
- int destinationFd;
- const char * destination = i->destination;
- struct stat destination_stat;
- int status;
- char buf[8192];
- char d[PATH_MAX];
+ int status = 0;
+ int opt;
+ int flags = 0;
+ int i;
+
+ while ((opt = getopt(argc, argv, "adfipR")) != -1)
+ switch (opt) {
+ case 'a':
+ flags |= FILEUTILS_PRESERVE_STATUS | FILEUTILS_RECUR;
+ /* fallthrough */
+ case 'd':
+ flags |= FILEUTILS_PRESERVE_SYMLINKS;
+ break;
+ case 'f':
+ flags |= FILEUTILS_FORCE;
+ break;
+ case 'i':
+ flags |= FILEUTILS_INTERACTIVE;
+ break;
+ case 'p':
+ flags |= FILEUTILS_PRESERVE_STATUS;
+ break;
+ case 'R':
+ flags |= FILEUTILS_RECUR;
+ break;
+ default:
+ show_usage();
+ }
+
+ if (optind + 2 > argc)
+ show_usage();
+
+ /* If there are only two arguments and... */
+ if (optind + 2 == argc) {
+ struct stat source_stat;
+ struct stat dest_stat;
+ int source_exists = 1;
+ int dest_exists = 1;
- if ( (i->stat.st_mode & S_IFMT) == S_IFDIR ) {
- if ( mkdir(destination, i->stat.st_mode & ~S_IFMT)
- != 0 && errno != EEXIST ) {
- name_and_error(destination);
- return 1;
- }
- return 0;
- }
- if ( (sourceFd = open(i->source, O_RDONLY)) < 0 ) {
- name_and_error(i->source);
- return 1;
- }
- if ( stat(destination, &destination_stat) == 0 ) {
- if ( i->stat.st_ino == destination_stat.st_ino
- && i->stat.st_dev == destination_stat.st_dev ) {
- fprintf(stderr
- ,"copy of %s to %s would copy file to itself.\n"
- ,i->source
- ,destination);
- close(sourceFd);
- return 1;
- }
- }
- /*
- * If the destination is a directory, create a file within it.
- */
- if ( (destination_stat.st_mode & S_IFMT) == S_IFDIR ) {
- destination = join_paths(
- d
- ,i->destination
- ,&i->source[i->directoryLength]);
+ if (((flags & FILEUTILS_PRESERVE_SYMLINKS) &&
+ lstat(argv[optind], &source_stat) < 0) ||
+ (!(flags & FILEUTILS_PRESERVE_SYMLINKS) &&
+ stat(argv[optind], &source_stat))) {
+ if (errno != ENOENT)
+ perror_msg_and_die("unable to stat `%s'", argv[optind]);
+ source_exists = 0;
+ }
- if ( stat(destination, &destination_stat) == 0 ) {
- if ( i->stat.st_ino == destination_stat.st_ino
- && i->stat.st_dev == destination_stat.st_dev ) {
- fprintf(stderr
- ,"copy of %s to %s would copy file to itself.\n"
- ,i->source
- ,destination);
- close(sourceFd);
- return 1;
- }
- }
- }
+ if (stat(argv[optind + 1], &dest_stat) < 0) {
+ if (errno != ENOENT)
+ perror_msg_and_die("unable to stat `%s'", argv[optind + 1]);
+ dest_exists = 0;
+ }
+
+ /* ...if neither is a directory or... */
+ if (((!source_exists || !S_ISDIR(source_stat.st_mode)) &&
+ (!dest_exists || !S_ISDIR(dest_stat.st_mode))) ||
+ /* ...recursing, the first is a directory, and the
+ * second doesn't exist, then... */
+ ((flags & FILEUTILS_RECUR) && S_ISDIR(source_stat.st_mode) &&
+ !dest_exists)) {
+ /* ...do a simple copy. */
+ if (copy_file(argv[optind], argv[optind + 1], flags) < 0)
+ status = 1;
+ return status;
+ }
+ }
- destinationFd = creat(destination, i->stat.st_mode & 07777);
+ for (i = optind; i < argc - 1; i++) {
+ char *dest = concat_path_file(argv[argc - 1],
+ get_last_path_component(argv[i]));
+ if (copy_file(argv[i], dest, flags) < 0)
+ status = 1;
+ free(dest);
+ }
- while ( (status = read(sourceFd, buf, sizeof(buf))) > 0 ) {
- if ( write(destinationFd, buf, status) != status ) {
- name_and_error(destination);
- close(sourceFd);
- close(destinationFd);
- return 1;
- }
- }
- close(sourceFd);
- close(destinationFd);
- if ( status < 0 ) {
- name_and_error(i->source);
- return 1;
- }
- return 0;
+ return status;
}
projects / oweals / busybox.git / blobdiff