From: Lennart Poettering <lennart@poettering.net>
Date: Tue, 25 Mar 2014 00:27:05 +0000 (+0100)
Subject: ask-password: when the user types a overly long password, beep and refuse
X-Git-Tag: v212~13
X-Git-Url: https://www.chiark.greenend.org.uk/ucgi/~ianmdlvl/git?a=commitdiff_plain;h=036eeac5a1799fa2c0ae11a14d8c667b5d303189;p=elogind.git

ask-password: when the user types a overly long password, beep and refuse

Based on a similar patch from David Härdeman.
---

diff --git a/src/shared/ask-password-api.c b/src/shared/ask-password-api.c
index 117f0c668..96f16cc7f 100644
--- a/src/shared/ask-password-api.c
+++ b/src/shared/ask-password-api.c
@@ -207,6 +207,11 @@ int ask_password_tty(
                         if (ttyfd >= 0)
                                 loop_write(ttyfd, "(no echo) ", 10, false);
                 } else {
+                        if (p >= sizeof(passphrase)-1) {
+                                loop_write(ttyfd, "\a", 1, false);
+                                continue;
+                        }
+
                         passphrase[p++] = c;
 
                         if (!silent_mode && ttyfd >= 0)