From: Todd C. Miller <Todd.Miller@courtesan.com>
Date: Tue, 27 Mar 2012 16:39:11 +0000 (-0400)
Subject: If there is nothing to read from the askpass program, set errno to
X-Git-Tag: SUDO_1_7_9p1~30
X-Git-Url: https://granicus.if.org/sourcecode?a=commitdiff_plain;h=50b3368c6dc6dcf4ae037280e39b02ffea2415db;p=sudo

If there is nothing to read from the askpass program, set errno to
EINTR.  This makes the cancel button behave like the user entered
^C at the password prompt when PAM is used.

--HG--
branch : 1.7
---

diff --git a/tgetpass.c b/tgetpass.c
index b64bb8d3e..c1926a017 100644
--- a/tgetpass.c
+++ b/tgetpass.c
@@ -228,6 +228,9 @@ sudo_askpass(prompt)
     (void) close(pfd[0]);
     (void) sigaction(SIGPIPE, &saved_sa_pipe, NULL);
 
+    if (pass == NULL)
+	errno = EINTR;	/* make cancel button simulate ^C */
+
     return pass;
 }