1 files changed, 50 insertions, 0 deletions
diff --git a/coreutils/readlink.c b/coreutils/readlink.c
new file mode 100644
index 0000000..d454cbf
--- /dev/null
+++ b/coreutils/readlink.c
@@ -0,0 +1,50 @@
+/* vi: set sw=4 ts=4: */
+/*
+ * Mini readlink implementation for busybox
+ *
+ * Copyright (C) 2000,2001 Matt Kraai <kraai@alumni.carnegiemellon.edu>
+ *
+ * Licensed under GPL v2 or later, see file LICENSE in this tarball for details.
+ */
+
+#include <getopt.h>
+
+#include "libbb.h"
+
+int readlink_main(int argc, char **argv);
+int readlink_main(int argc, char **argv)
+{
+	char *buf;
+	char *fname;
+
+	USE_FEATURE_READLINK_FOLLOW(
+		unsigned opt;
+		/* We need exactly one non-option argument.  */
+		opt_complementary = "=1";
+		opt = getopt32(argc, argv, "f");
+		fname = argv[optind];
+	)
+	SKIP_FEATURE_READLINK_FOLLOW(
+		const unsigned opt = 0;
+		if (argc != 2) bb_show_usage();
+		fname = argv[1];
+	)
+
+	/* compat: coreutils readlink reports errors silently via exit code */
+	logmode = LOGMODE_NONE;
+
+	if (opt) {
+		buf = realpath(fname, bb_common_bufsiz1);
+	} else {
+		buf = xmalloc_readlink_or_warn(fname);
+	}
+
+	if (!buf)
+		return EXIT_FAILURE;
+	puts(buf);
+
+	if (ENABLE_FEATURE_CLEAN_UP && !opt)
+		free(buf);
+
+	fflush_stdout_and_exit(EXIT_SUCCESS);
+}