1 files changed, 29 insertions, 0 deletions
diff --git a/sys/libc/cnote.c b/sys/libc/cnote.c
new file mode 100644
index 00000000..c62a0b02
--- /dev/null
+++ b/sys/libc/cnote.c
@@ -0,0 +1,29 @@
+/* Copyright(c) 1986 Association of Universities for Research in Astronomy Inc.
+*/
+
+#define import_spp
+#define	import_libc
+#define	import_xnames
+#define import_fset
+#include <iraf.h>
+
+
+/* C_NOTE -- FIO note file offset.  If the actual file is a text file the
+** seek offset is a magic number and is returned unchanged.  If the actual
+** file is a binary file the seek offset is returned as a zero-indexed byte
+** offset.
+*/
+long
+c_note (
+  XINT	fd			/* FIO file descriptor		*/
+)
+{
+	long  xchar_offset;
+	XINT  x_fd = fd;
+
+	xchar_offset = (long) NOTE (&x_fd);
+	if (c_fstati (fd, F_TYPE) == BINARY_FILE)
+	    return ((xchar_offset - 1) * sizeof(XCHAR));
+	else
+	    return (xchar_offset);
+}