From c8e1e71eb526475dd431443345262c2e5a627831 Mon Sep 17 00:00:00 2001
From: Nicholas Noll <nnoll523@gmail.com>
Date: Sat, 23 Oct 2021 11:17:25 -0700
Subject: chore(rename): libn -> base

---
 sys/base/os.c | 30 ++++++++++++++++++++++++++++++
 1 file changed, 30 insertions(+)
 create mode 100644 sys/base/os.c

(limited to 'sys/base/os.c')

diff --git a/sys/base/os.c b/sys/base/os.c
new file mode 100644
index 0000000..d5277b5
--- /dev/null
+++ b/sys/base/os.c
@@ -0,0 +1,30 @@
+#include <u.h>
+#include <base.h>
+
+int
+os·exists(byte *path, int flag)
+{
+    return access(path, flag) == 0;
+}
+
+int
+os·sep(void)
+{
+#if defined(UNIX) || defined(__linux__)
+    return '/';
+#elif defined(WIN32)
+    return '\\';
+#else
+    panicf("unrecognized operating system");
+    return '\0';
+#endif
+}
+
+byte*
+os·basename(byte *path)
+{
+    byte *sep;
+
+    sep = utf8·findrrune(path, os·sep());
+    return (sep == nil) ? path : sep+1;
+}
-- 
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