Rewrote rm.

libbb/remove_file.c

@@ -0,0 +1,127 @@
+/* vi: set sw=4 ts=4: */
+/*
+ * Mini remove_file implementation for busybox
+ *
+ *
+ * Copyright (C) 2001 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 <stdio.h>
+#include <time.h>
+#include <utime.h>
+#include <dirent.h>
+#include <errno.h>
+#include <unistd.h>
+#include <stdlib.h>
+#include <getopt.h>
+#include "libbb.h"
+
+extern int remove_file(const char *path, int flags)
+{
+	struct stat path_stat;
+	int path_exists = 1;
+
+	if (stat(path, &path_stat) < 0) {
+		if (errno != ENOENT) {
+			perror_msg("unable to stat `%s'", path);
+			return -1;
+		}
+
+		path_exists = 0;
+	}
+
+	if (!path_exists) {
+		if (!(flags & FILEUTILS_FORCE)) {
+			perror_msg("cannot remove `%s'", path);
+			return -1;
+		}
+		return 0;
+	}
+
+	if (S_ISDIR(path_stat.st_mode)) {
+		DIR *dp;
+		struct dirent *d;
+		int status = 0;
+
+		if (!(flags & FILEUTILS_RECUR)) {
+			error_msg("%s: is a directory", path);
+			return -1;
+		}
+
+		if ((!(flags & FILEUTILS_FORCE) && access(path, W_OK) < 0 &&
+					isatty(0)) ||
+				(flags & FILEUTILS_INTERACTIVE)) {
+			fprintf(stderr, "%s: descend into directory `%s'? ", applet_name,
+					path);
+			if (!ask_confirmation())
+				return 0;
+		}
+
+		if ((dp = opendir(path)) == NULL) {
+			perror_msg("unable to open `%s'", path);
+			return -1;
+		}
+
+		while ((d = readdir(dp)) != NULL) {
+			char *new_path;
+
+			if (strcmp(d->d_name, ".") == 0 ||
+					strcmp(d->d_name, "..") == 0)
+				continue;
+
+			new_path = concat_path_file(path, d->d_name);
+			if (remove_file(new_path, flags) < 0)
+				status = -1;
+			free(new_path);
+		}
+
+		if (closedir(dp) < 0) {
+			perror_msg("unable to close `%s'", path);
+			return -1;
+		}
+
+		if (flags & FILEUTILS_INTERACTIVE) {
+			fprintf(stderr, "%s: remove directory `%s'? ", applet_name, path);
+			if (!ask_confirmation())
+				return status;
+		}
+
+		if (rmdir(path) < 0) {
+			perror_msg("unable to remove `%s'", path);
+			return -1;
+		}
+
+		return status;
+	} else {
+		if ((!(flags & FILEUTILS_FORCE) && access(path, W_OK) < 0 &&
+					isatty(0)) ||
+				(flags & FILEUTILS_INTERACTIVE)) {
+			fprintf(stderr, "%s: remove `%s'? ", applet_name, path);
+			if (!ask_confirmation())
+				return 0;
+		}
+
+		if (unlink(path) < 0) {
+			perror_msg("unable to remove `%s'", path);
+			return -1;
+		}
+
+		return 0;
+	}
+}