From 3534b428629be185e096be99e3bd5fdfe32d5544 Mon Sep 17 00:00:00 2001
From: Laurent Bercot <ska-skaware@skarnet.org>
Date: Thu, 18 Sep 2014 18:55:44 +0000
Subject: initial commit with rc for skalibs-2.0.0.0

---
 src/libstddjb/sadirname.c | 18 ++++++++++++++++++
 1 file changed, 18 insertions(+)
 create mode 100644 src/libstddjb/sadirname.c

(limited to 'src/libstddjb/sadirname.c')

diff --git a/src/libstddjb/sadirname.c b/src/libstddjb/sadirname.c
new file mode 100644
index 0000000..9fc4802
--- /dev/null
+++ b/src/libstddjb/sadirname.c
@@ -0,0 +1,18 @@
+/* ISC license. */
+
+#include <skalibs/bytestr.h>
+#include <skalibs/stralloc.h>
+#include <skalibs/djbunix.h>
+
+int sadirname (stralloc *sa, char const *s, unsigned int len)
+{
+  if (!len) return stralloc_catb(sa, ".", 1) ;
+  while (len && (s[len-1] == '/')) len-- ;
+  if (!len) return stralloc_catb(sa, "/", 1) ;
+  {
+    register unsigned int i = byte_rchr(s, len, '/') ;
+    return (i == len) ? stralloc_catb(sa, ".", 1) :
+           (i == 0)   ? stralloc_catb(sa, "/", 1) :
+                        stralloc_catb(sa, s, i) ;
+  }
+}
-- 
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