sulogin: bail out from getpasswd(...) on timeout

If timeout happens while waiting in prompt, bail out instead
of retrying.

Reported-by: Bjørn Mork <bjorn@mork.no>
Addresses: http://bugs.debian.org/846107
Signed-off-by: Andreas Henriksson <andreas@fatal.se>

diff --git a/login-utils/sulogin.c b/login-utils/sulogin.c
index 43117b2b46b8dd2145c98a83e5b2d50207c710fb..79a9274222f6155521a8549b53812737b900656e 100644 (file)
--- a/login-utils/sulogin.c
+++ b/login-utils/sulogin.c
@@ -645,6 +645,10 @@ static char *getpasswd(struct console *con)
        while (cp->eol == '\0') {
                if (read(fd, &c, 1) < 1) {
                        if (errno == EINTR || errno == EAGAIN) {
+                               if (alarm_rised) {
+                                       ret = NULL;
+                                       goto quit;
+                               }
                                xusleep(250000);
                                continue;
                        }