disable length applet. ${#var} and echo -n "$var" | wc -c are portable equivalents

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>

1 files changed, 22 insertions, 0 deletions

diff --git a/coreutils/length.c.disabled b/coreutils/length.c.disabled
new file mode 100644
index 0000000..7f0b48c
--- /dev/null
+++ b/coreutils/length.c.disabled
@@ -0,0 +1,22 @@
+/* vi: set sw=4 ts=4: */
+/*
+ * Licensed under GPLv2, see file LICENSE in this source tree.
+ */
+
+/* BB_AUDIT SUSv3 N/A -- Apparently a busybox (obsolete?) extension. */
+
+#include "libbb.h"
+
+/* This is a NOFORK applet. Be very careful! */
+
+int length_main(int argc, char **argv) MAIN_EXTERNALLY_VISIBLE;
+int length_main(int argc, char **argv)
+{
+	if ((argc != 2) || (**(++argv) == '-')) {
+		bb_show_usage();
+	}
+
+	printf("%u\n", (unsigned)strlen(*argv));
+
+	return fflush_all();
+}