From: Kirk McKusick <mckusick@ucbvax.Berkeley.EDU>
Date: Thu, 30 Oct 1980 16:33:16 +0000 (-0800)
Subject: date and time created 80/10/30 00:33:16 by mckusick
X-Git-Tag: BSD-4^3~132
X-Git-Url: https://git.subgeniuskitty.com/unix-history/.git/commitdiff_plain/9873497c01e419d831575c1d3c54fbb1641bb778

date and time created 80/10/30 00:33:16 by mckusick

SCCS-vsn: usr.bin/pascal/libpc/FNIL.c 1.1
---

diff --git a/usr/src/usr.bin/pascal/libpc/FNIL.c b/usr/src/usr.bin/pascal/libpc/FNIL.c
new file mode 100644
index 0000000000..1f4d6effb4
--- /dev/null
+++ b/usr/src/usr.bin/pascal/libpc/FNIL.c
@@ -0,0 +1,29 @@
+/* Copyright (c) 1979 Regents of the University of California */
+
+static char sccsid[] = "@(#)FNIL.c 1.1 %G%";
+
+#include "h00vars.h"
+#include "h01errs.h"
+
+char *
+FNIL(curfile)
+
+	register struct iorec	*curfile;
+{
+	if (curfile->fblk >= MAXFILES || _actfile[curfile->fblk] != curfile) {
+		ERROR(ENOFILE, 0);
+		return;
+	}
+	if (curfile->funit & FDEF) {
+		ERROR(EREFINAF, curfile->pfname);
+		return;
+	}
+	if (curfile->funit & FREAD) {
+		IOSYNC(curfile);
+		if (curfile->funit & EOFF) {
+			ERROR(EPASTEOF, curfile->pfname);
+			return;
+		}
+	}
+	return curfile->fileptr;
+}