Rewrite cp and mv to be SUSv2 compliant.

2001-04-23 18:53:07 +00:00
parent 4e9267d76c
commit 91b2855ba8
10 changed files with 818 additions and 163 deletions
--- a/coreutils/cp.c
+++ b/coreutils/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;
+}