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-rw-r--r--cp.c114
1 files changed, 114 insertions, 0 deletions
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+/* 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 <unistd.h>
+#include <fcntl.h>
+#include <utime.h>
+#include <errno.h>
+#include <dirent.h>
+#include <stdlib.h>
+
+#include "busybox.h"
+
+extern int cp_main(int argc, char **argv)
+{
+ int status = 0;
+ int opt;
+ int flags = 0;
+ int i;
+
+ while ((opt = getopt(argc, argv, "adfipR")) != -1)
+ switch (opt) {
+ case 'a':
+ flags |= CP_PRESERVE_STATUS | CP_RECUR;
+ /* fallthrough */
+ case 'd':
+ flags |= CP_PRESERVE_SYMLINKS;
+ break;
+ case 'f':
+ flags |= CP_FORCE;
+ break;
+ case 'i':
+ flags |= CP_INTERACTIVE;
+ break;
+ case 'p':
+ flags |= CP_PRESERVE_STATUS;
+ break;
+ case 'R':
+ flags |= CP_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 (((flags & CP_PRESERVE_SYMLINKS) &&
+ lstat(argv[optind], &source_stat) < 0) ||
+ (!(flags & CP_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(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 & CP_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;
+ }
+ }
+
+ 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);
+ }
+
+ return status;
+}