Rewrite cp and mv to be SUSv2 compliant.

git-svn-id: svn://busybox.net/trunk/busybox@2407 69ca8d6d-28ef-0310-b511-8ec308f3f277

1 files changed, 114 insertions, 0 deletions

diff --git a/cp.c b/cp.c
new file mode 100644
index 000000000..254445f02
--- /dev/null
+++ b/cp.c
@@ -0,0 +1,114 @@
+/* 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;
+}