Initial commit

1 files changed, 93 insertions, 0 deletions

diff --git a/unix/boot/bootlib/osdir.c b/unix/boot/bootlib/osdir.c
new file mode 100644
index 00000000..d3807302
--- /dev/null
+++ b/unix/boot/bootlib/osdir.c
@@ -0,0 +1,93 @@
+/* Copyright(c) 1986 Association of Universities for Research in Astronomy Inc.
+ */
+
+#include <string.h>
+#include "bootlib.h"
+
+
+/*
+ * OS_DIR -- A package for accessing a directory as a list of files.
+ */
+
+#ifndef NOVOS
+
+/* OS_DIROPEN -- Open the directory.
+ */
+int
+os_diropen (char *dirname)
+{
+	PKCHAR	osfn[SZ_PATHNAME+1];
+	XINT	chan;
+
+	extern  int ZOPDIR();
+
+
+	strcpy ((char *)osfn, dirname);
+	ZOPDIR (osfn, &chan);
+
+	return (chan);
+}
+
+
+/* OS_DIRCLOSE -- Close the directory.
+ */
+int
+os_dirclose (int chan)
+{
+	XINT	x_chan=chan, status;
+
+	extern  int ZCLDIR();
+
+
+	ZCLDIR (&x_chan, &status);
+	return (status);
+}
+
+
+/* OS_GFDIR -- Get the next filename from the directory.
+ */
+int
+os_gfdir (
+  int	chan,
+  char	*fname,
+  int	maxch
+)
+{
+	PKCHAR	osfn[SZ_PATHNAME+1];
+	XINT	x_chan=chan, x_maxch=maxch, status;
+
+	extern  int ZGFDIR();
+
+	for (;;) {
+	    ZGFDIR (&x_chan, osfn, &x_maxch, &status);
+	    if (status > 0) {
+		/* Omit the self referential directory files "." and ".."
+		 * or recursion may result.
+		 */
+		if (strcmp ((char *)osfn, ".") == 0)
+		    continue;
+		if (strcmp ((char *)osfn, "..") == 0)
+		    continue;
+
+		strncpy (fname, osfn2vfn ((char *)osfn), maxch);
+		return (status);
+
+	    } else {
+		/* End of directory.
+		 */
+		*fname = EOS;
+		return (0);
+	    }
+	}
+}
+
+#else
+/* NOVOS bootsrap.  Just stub these out until we re-boostrap using the
+ * VOS libs, which provide zopdir.
+ */
+
+int os_dirclose (int chan) { return (-1); }
+int os_diropen (char *dirname) { return (-1); }
+int os_gfdir (int chan, char *fname, int maxch) { return (0); }
+
+#endif