From 09aa81cdbb9da4d141dfc9d741e45391ad9bb3eb Mon Sep 17 00:00:00 2001
From: Werner Fink <werner@suse.de>
Date: Tue, 26 Jul 2011 12:03:13 +0000
Subject: [PATCH] Sulogin: if zero is read at reading the passwd guess it's
 done.

---
 doc/Changelog | 1 +
 src/sulogin.c | 5 ++++-
 2 files changed, 5 insertions(+), 1 deletion(-)

diff --git a/doc/Changelog b/doc/Changelog
index dc99219..435e624 100644
--- a/doc/Changelog
+++ b/doc/Changelog
@@ -30,6 +30,7 @@ sysvinit (2.89dsf) UNRELEASED; urgency=low
   * Make quotes visible in example of the manual page of fstab-decode
   * Sulogin: enforce reconnection of stdin/stdout/stderr if a device
     was specified.
+  * Sulogin: if zero is read at reading the passwd guess it's done.
 
   [ Petter Reinholdtsen ]
   * Next release will be 2.89dsf.
diff --git a/src/sulogin.c b/src/sulogin.c
index b1bd75a..70fa334 100644
--- a/src/sulogin.c
+++ b/src/sulogin.c
@@ -636,7 +636,7 @@ char *getpasswd(struct console *con)
 	cp->eol = *ptr = '\0';
 
 	eightbit = ((con->flags & CON_SERIAL) == 0 || (tty.c_cflag & (PARODD|PARENB)) == 0);
-	while (cp->eol == 0) {
+	while (cp->eol == '\0') {
 		if (read(fd, &c, 1) < 1) {
 			if (errno == EINTR || errno == EAGAIN) {
 				usleep(1000);
@@ -669,6 +669,9 @@ char *getpasswd(struct console *con)
 		}
 
 		switch (ascval) {
+		case 0:
+			*ptr = '\0';
+			goto quit; 
 		case CR:
 		case NL:
 			*ptr = '\0';