1 files changed, 27 insertions, 0 deletions
diff --git a/sys/fio/fstrfp.x b/sys/fio/fstrfp.x
new file mode 100644
index 00000000..851bb6b1
--- /dev/null
+++ b/sys/fio/fstrfp.x
@@ -0,0 +1,27 @@
+# Copyright(c) 1986 Association of Universities for Research in Astronomy Inc.
+
+include	<config.h>
+include	<fio.h>
+
+# FSTRFP -- Get a dummy file descriptor for use by STROPEN "files".
+# The static part of the descriptor is returned to later be allocated
+# by STROPEN.  The dynamic part is permanently allocated, and is used to
+# make the string look more like a regular file.
+
+procedure fstrfp (newfp)
+
+pointer	newfp
+pointer	str_fp
+int	fd, fgetfd()
+data	str_fp /NULL/
+include	<fio.com>
+
+begin
+	if (str_fp == NULL) {
+	    fd = fgetfd ("String_File", STRING_FILE, STRING_FILE)
+	    str_fp = fiodes[fd]
+	    fiodes[fd] = NULL
+	}
+
+	newfp = str_fp
+end