1 files changed, 17 insertions, 0 deletions
diff --git a/src/libstddjb/sabasename.c b/src/libstddjb/sabasename.c
new file mode 100644
index 0000000..829b2a7
--- /dev/null
+++ b/src/libstddjb/sabasename.c
@@ -0,0 +1,17 @@
+/* ISC license. */
+
+#include <skalibs/bytestr.h>
+#include <skalibs/stralloc.h>
+#include <skalibs/djbunix.h>
+
+int sabasename (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, '/') ;
+    i = (i == len) ? 0 : i+1 ;
+    return stralloc_catb(sa, s + i, len - i) ;
+  }
+}