1 files changed, 101 insertions, 0 deletions
diff --git a/winsup/cygwin/scandir.cc b/winsup/cygwin/scandir.cc
new file mode 100644
index 000000000..bbe582f12
--- /dev/null
+++ b/winsup/cygwin/scandir.cc
@@ -0,0 +1,101 @@
+/* scandir.cc
+
+   Copyright 1998 Cygnus Solutions.
+
+   Written by Corinna Vinschen <corinna.vinschen@cityweb.de>
+
+   This file is part of Cygwin.
+
+   This software is a copyrighted work licensed under the terms of the
+   Cygwin license.  Please consult the file "CYGWIN_LICENSE" for
+   details. */
+
+#include <dirent.h>
+#include <stdlib.h>
+#include <string.h>
+#include <errno.h>
+#include "winsup.h"
+
+extern "C"
+int
+scandir (const char *dir,
+	 struct dirent ***namelist,
+	 int (*select) (const struct dirent *),
+	 int (*compar) (const struct dirent **, const struct dirent **))
+{
+  DIR *dirp;
+  struct dirent *ent, *etmp, **nl = NULL, **ntmp;
+  int count = 0;
+  int allocated = 0;
+
+  if (!(dirp = opendir (dir)))
+    return -1;
+
+  int prior_errno = get_errno ();
+  set_errno (0);
+
+  while ((ent = readdir (dirp)))
+    {
+      if (!select || select (ent))
+	{
+
+	  /* Ignore error from readdir/select. See POSIX specs. */
+	  set_errno (0);
+
+	  if (count == allocated)
+	    {
+
+	      if (allocated == 0)
+		allocated = 10;
+	      else
+		allocated *= 2;
+
+	      ntmp = (struct dirent **) realloc (nl, allocated * sizeof *nl);
+	      if (!ntmp)
+		{
+		  set_errno (ENOMEM);
+		  break;
+		}
+	      nl = ntmp;
+	  }
+
+	  if (!(etmp = (struct dirent *) malloc (sizeof *ent)))
+	    {
+	      set_errno (ENOMEM);
+	      break;
+	    }
+	  *etmp = *ent;
+	  nl[count++] = etmp;
+	}
+    }
+
+  if ((prior_errno = get_errno ()) != 0)
+    {
+      closedir (dirp);
+      if (nl)
+        {
+          while (count > 0)
+            free (nl[--count]);
+          free (nl);
+        }
+      /* Ignore errors from closedir() and what not else. */
+      set_errno (prior_errno);
+      return -1;
+    }
+
+  closedir (dirp);
+  set_errno (prior_errno);
+
+  qsort (nl, count, sizeof *nl, (int (*)(const void *, const void *)) compar);
+  if (namelist)
+    *namelist = nl;
+  return count;
+}
+
+extern "C"
+int
+alphasort (const struct dirent **a, const struct dirent **b)
+{
+  return strcoll ((*a)->d_name, (*b)->d_name);
+}
+