add files for 2006-08-31T01:53:36Z

diff --git a/src/osdep/unix/opendir.c b/src/osdep/unix/opendir.c
new file mode 100644 (file)
index 0000000..445fd14
--- /dev/null
+++ b/src/osdep/unix/opendir.c
@@ -0,0 +1,79 @@
+/* ========================================================================
+ * Copyright 1988-2006 University of Washington
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * 
+ * ========================================================================
+ */
+
+/*
+ * Program:    Read directories
+ *
+ * Author:     Mark Crispin
+ *             Networks and Distributed Computing
+ *             Computing & Communications
+ *             University of Washington
+ *             Administration Building, AG-44
+ *             Seattle, WA  98195
+ *             Internet: MRC@CAC.Washington.EDU
+ *
+ * Date:       16 December 1993
+ * Last Edited:        30 August 2006
+ */
+\f
+/* Emulator for BSD opendir() call
+ * Accepts: directory name
+ * Returns: directory structure pointer
+ */
+
+DIR *opendir (char *name)
+{
+  DIR *d = NIL;
+  struct stat sbuf;
+  int fd = open (name,O_RDONLY,NIL);
+  errno = ENOTDIR;             /* default error is bogus directory */
+  if ((fd >= 0) && !(fstat (fd,&sbuf)) && ((sbuf.st_mode&S_IFMT) == S_IFDIR)) {
+    d = (DIR *) fs_get (sizeof (DIR));
+                               /* initialize structure */
+    d->dd_loc = 0;
+    read (fd,d->dd_buf = (char *) fs_get (sbuf.st_size),
+         d->dd_size = sbuf.st_size);
+  }
+  else if (d) fs_give ((void **) &d);
+  if (fd >= 0) close (fd);
+  return d;
+}
+
+
+/* Emulator for BSD closedir() call
+ * Accepts: directory structure pointer
+ */
+
+int closedir (DIR *d)
+{
+                               /* free storage */
+  fs_give ((void **) &(d->dd_buf));
+  fs_give ((void **) &d);
+  return NIL;                  /* return */
+}
+
+
+/* Emulator for BSD readdir() call
+ * Accepts: directory structure pointer
+ */
+
+struct direct *readdir (DIR *d)
+{
+                               /* loop through directory */
+  while (d->dd_loc < d->dd_size) {
+    struct direct *dp = (struct direct *) (d->dd_buf + d->dd_loc);
+    d->dd_loc += sizeof (struct direct);
+    if (dp->d_ino) return dp;  /* if have a good entry return it */
+  }
+  return NIL;                  /* all done */
+}