1 files changed, 46 insertions, 0 deletions
diff --git a/coreutils/realpath.c b/coreutils/realpath.c
new file mode 100644
index 0000000..28906ba
--- /dev/null
+++ b/coreutils/realpath.c
@@ -0,0 +1,46 @@
+/* vi: set sw=4 ts=4: */
+
+/* BB_AUDIT SUSv3 N/A -- Apparently a busybox extension. */
+
+/* Mar 16, 2003      Manuel Novoa III   (mjn3@codepoet.org)
+ *
+ * Now does proper error checking on output and returns a failure exit code
+ * if one or more paths cannot be resolved.
+ *
+ * Licensed under GPLv2 or later, see file LICENSE in this tarball for details.
+ */
+
+#include "libbb.h"
+
+int realpath_main(int argc, char **argv) MAIN_EXTERNALLY_VISIBLE;
+int realpath_main(int argc UNUSED_PARAM, char **argv)
+{
+	int retval = EXIT_SUCCESS;
+
+#if PATH_MAX > (BUFSIZ+1)
+	RESERVE_CONFIG_BUFFER(resolved_path, PATH_MAX);
+# define resolved_path_MUST_FREE 1
+#else
+#define resolved_path bb_common_bufsiz1
+# define resolved_path_MUST_FREE 0
+#endif
+
+	if (!*++argv) {
+		bb_show_usage();
+	}
+
+	do {
+		if (realpath(*argv, resolved_path) != NULL) {
+			puts(resolved_path);
+		} else {
+			retval = EXIT_FAILURE;
+			bb_simple_perror_msg(*argv);
+		}
+	} while (*++argv);
+
+#if ENABLE_FEATURE_CLEAN_UP && resolved_path_MUST_FREE
+	RELEASE_CONFIG_BUFFER(resolved_path);
+#endif
+
+	fflush_stdout_and_exit(retval);
+}