1 files changed, 28 insertions, 0 deletions
diff --git a/newlib/libc/unix/dirname.c b/newlib/libc/unix/dirname.c
new file mode 100644
index 000000000..f026e3056
--- /dev/null
+++ b/newlib/libc/unix/dirname.c
@@ -0,0 +1,28 @@
+/* Copyright 2005 Shaun Jackman
+ * Permission to use, copy, modify, and distribute this software
+ * is freely granted, provided that this notice is preserved.
+ */
+
+#include <libgen.h>
+#include <string.h>
+
+char *
+_DEFUN (dirname, (path),
+	char *path)
+{
+	char *p;
+	if( path == NULL || *path == '\0' )
+		return ".";
+	p = path + strlen(path) - 1;
+	while( *p == '/' ) {
+		if( p == path )
+			return path;
+		*p-- = '\0';
+	}
+	while( p >= path && *p != '/' )
+		p--;
+	return
+		p < path ? "." :
+		p == path ? "/" :
+		(*p = '\0', path);
+}