[T106][ZXW-22]7520V3SCV2.01.01.02P42U09_VEC_V0.8_AP_VEC origin source commit

Change-Id: Ic6e05d89ecd62fc34f82b23dcf306c93764aec4b
diff --git a/ap/app/busybox/src/libbb/remove_file.c b/ap/app/busybox/src/libbb/remove_file.c
new file mode 100644
index 0000000..5b75f7f
--- /dev/null
+++ b/ap/app/busybox/src/libbb/remove_file.c
@@ -0,0 +1,102 @@
+/* vi: set sw=4 ts=4: */
+/*
+ * Mini remove_file implementation for busybox
+ *
+ * Copyright (C) 2001 Matt Kraai <kraai@alumni.carnegiemellon.edu>
+ *
+ * Licensed under GPLv2 or later, see file LICENSE in this source tree.
+ */
+
+#include "libbb.h"
+
+/* Used from NOFORK applets. Must not allocate anything */
+
+int FAST_FUNC remove_file(const char *path, int flags)
+{
+	struct stat path_stat;
+
+	if (lstat(path, &path_stat) < 0) {
+		if (errno != ENOENT) {
+			bb_perror_msg("can't stat '%s'", path);
+			return -1;
+		}
+		if (!(flags & FILEUTILS_FORCE)) {
+			bb_perror_msg("can't 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)) {
+			bb_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 (!bb_ask_confirmation())
+				return 0;
+		}
+
+		dp = opendir(path);
+		if (dp == NULL) {
+			return -1;
+		}
+
+		while ((d = readdir(dp)) != NULL) {
+			char *new_path;
+
+			new_path = concat_subpath_file(path, d->d_name);
+			if (new_path == NULL)
+				continue;
+			if (remove_file(new_path, flags) < 0)
+				status = -1;
+			free(new_path);
+		}
+
+		if (closedir(dp) < 0) {
+			bb_perror_msg("can't close '%s'", path);
+			return -1;
+		}
+
+		if (flags & FILEUTILS_INTERACTIVE) {
+			fprintf(stderr, "%s: remove directory '%s'? ", applet_name, path);
+			if (!bb_ask_confirmation())
+				return status;
+		}
+
+		if (rmdir(path) < 0) {
+			bb_perror_msg("can't remove '%s'", path);
+			return -1;
+		}
+
+		return status;
+	}
+
+	/* !ISDIR */
+	if ((!(flags & FILEUTILS_FORCE)
+	     && access(path, W_OK) < 0
+	     && !S_ISLNK(path_stat.st_mode)
+	     && isatty(0))
+	 || (flags & FILEUTILS_INTERACTIVE)
+	) {
+		fprintf(stderr, "%s: remove '%s'? ", applet_name, path);
+		if (!bb_ask_confirmation())
+			return 0;
+	}
+
+	if (unlink(path) < 0) {
+		bb_perror_msg("can't remove '%s'", path);
+		return -1;
+	}
+
+	return 0;
+}