Add -p support.

coreutils/rmdir.c

@@ -22,24 +22,76 @@
  *
  */
 
-#include <stdio.h>
-#include <errno.h>
+#include <getopt.h>
 #include <unistd.h>
 #include <stdlib.h>
+
 #include "busybox.h"
 
-extern int rmdir_main(int argc, char **argv)
+
+/* Return true if a path is composed of multiple components.  */
+
+static int
+multiple_components_p (const char *path)
+{
+	const char *s = path;
+
+	while (s[0] != '\0' && s[0] != '/')
+		s++;
+
+	while (s[0] == '/')
+		s++;
+
+	return (s[0] != '\0');
+}
+
+
+/* Remove a directory.  Returns 0 if successful, -1 on error.  */
+
+static int
+remove_directory (char *path, int flags)
+{
+	if (!(flags & FILEUTILS_RECUR)) {
+		if (rmdir (path) < 0) {
+			perror_msg ("unable to remove `%s'", path);
+			return -1;
+		}
+	} else {
+		if (remove_directory (path, 0) < 0)
+			return -1;
+
+		if (multiple_components_p (path))
+			if (remove_directory (dirname (path), flags) < 0)
+				return -1;
+	}
+
+	return 0;
+}
+
+
+extern int
+rmdir_main (int argc, char **argv)
 {
 	int status = EXIT_SUCCESS;
+	int flags = 0;
+	int i, opt;
 
-	if (argc == 1 || **(argv + 1) == '-')
+	while ((opt = getopt (argc, argv, "p")) != -1)
+		switch (opt) {
+			case 'p':
+				flags |= FILEUTILS_RECUR;
+				break;
+
+			default:
+				show_usage ();
+		}
+
+	if (optind == argc)
 		show_usage();
 
-	while (--argc > 0) {
-		if (rmdir(*(++argv)) == -1) {
-			perror_msg("%s", *argv);
+	for (i = optind; i < argc; i++)
+		if (remove_directory (argv[i], flags) < 0)
 			status = EXIT_FAILURE;
-		}
-	}
+
 	return status;
 }