Initial Alpine Version

1 files changed, 79 insertions, 0 deletions

diff --git a/imap/src/osdep/unix/opendir.c b/imap/src/osdep/unix/opendir.c
new file mode 100644
index 00000000..445fd148
--- /dev/null
+++ b/imap/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
+ */
+
+/* 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 */
+}