From 73f94fab501fcce223d5351b84956557f5eb8594 Mon Sep 17 00:00:00 2001
From: "Kurt A. Schoens" <kas@ucbvax.Berkeley.EDU>
Date: Thu, 9 Oct 1980 02:56:15 -0800
Subject: [PATCH] Added ignoreeof flag which requires explicit quit instead of
 End of File from terminal to leave Mail.

SCCS-vsn: usr.bin/mail/lex.c 1.2
---
 usr/src/usr.bin/mail/lex.c | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/usr/src/usr.bin/mail/lex.c b/usr/src/usr.bin/mail/lex.c
index 73a25dfb62..132895042b 100644
--- a/usr/src/usr.bin/mail/lex.c
+++ b/usr/src/usr.bin/mail/lex.c
@@ -8,7 +8,7 @@
  * Lexical processing of commands.
  */
 
-static char *SccsId = "@(#)lex.c	1.1 %G%";
+static char *SccsId = "@(#)lex.c	1.2 %G%";
 
 /*
  * Interpret user commands one by one.  If standard input is not a tty,
@@ -60,6 +60,7 @@ commands()
 
 		if (!rcvmode && !sourcing)
 			return;
+top:
 		if (prompt && !sourcing)
 			printf("_\r");
 		flush();
@@ -79,6 +80,10 @@ commands()
 					unstack();
 					goto more;
 				}
+				if (value("ignoreeof") != NOSTR && prompt) {
+					printf("Use \"quit\" to quit.\n");
+					goto top;
+				}
 				if (!edit) {
 					signal(SIGINT, SIG_IGN);
 					return;
-- 
2.20.1