[kbd] [Enhancement] Add hostname to message on locked screen

[Vladimir Lomov <lomov.vl@yandex.ru>]

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Hello,

I'd like to propose small enhancement: to add to the message on locked
screen information about current host. May be it is worth to store the
same information in syslog, I don't have any opinion.

I attached small patch that works (basically) on my system (Archlinux
x86_64).

---
WBR, Vladimir Lomov

-- 
I can give you my word, but I know what it's worth and you don't.
		-- Nero Wolfe, "Over My Dead Body"

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diff --git a/src/vlock/auth.c b/src/vlock/auth.c
index 25efb5e..f0200eb 100644
--- a/src/vlock/auth.c
+++ b/src/vlock/auth.c
@@ -60,6 +60,7 @@ do_account_password_management(pam_handle_t *pamh)
 int get_password(pam_handle_t *pamh, const char *username, const char *tty)
 {
 	uid_t uid = getuid();
+	char *hostname = getenv("HOSTNAME");
 
 	for (;;) {
 		int rc;
@@ -83,8 +84,8 @@ int get_password(pam_handle_t *pamh, const char *username, const char *tty)
 			printf(_("The entire console display is now completely locked by %s.\n"),
 			       username);
 		} else {
-			printf(_("The %s is now locked by %s.\n"), tty,
-			       username);
+			printf(_("The %s is now locked by %s on %s.\n"), tty,
+			       username, hostname);
 			if (is_vt)
 				puts(_("Use Alt-function keys to switch to other virtual consoles."));
 		}