From e98588b3171f9d0ed5e04ff6bb0433729eb6886f Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Ond=C5=99ej=20Hru=C5=A1ka?= <ondra@ondrovo.com>
Date: Mon, 23 Oct 2017 23:49:19 +0200
Subject: [PATCH] Fix broken validation for bm*

---
 front-end     |  2 +-
 user/screen.c | 12 +++++++++---
 2 files changed, 10 insertions(+), 4 deletions(-)

diff --git a/front-end b/front-end
index c8305de..cf29dea 160000
--- a/front-end
+++ b/front-end
@@ -1 +1 @@
-Subproject commit c8305dea1a9ab38a13de442152c1fb9819bf68b1
+Subproject commit cf29deaa0cf6fa4dc600c0684b009f4ec02ce5e7
diff --git a/user/screen.c b/user/screen.c
index 1853c41..3e4a3ef 100644
--- a/user/screen.c
+++ b/user/screen.c
@@ -217,6 +217,7 @@ xget_term_bm(char *buff, char *value)
 	char c;
 	char *bp = buff;
 	char *cp = value;
+	buff[0] = 0;
 	int n = 0;
 	while((c = *cp++) != 0) {
 		if(n>0) {
@@ -254,7 +255,7 @@ xset_term_bm(const char *name, char *field, const char *buff, const void *arg)
 				return XSET_FAIL;
 			}
 
-//			cgi_dbg("acu %d", acu);
+			dbg("+ %c", acu);
 			buff_bm[char_i++] = (char)acu;
 
 			// prepare for next char
@@ -273,11 +274,16 @@ xset_term_bm(const char *name, char *field, const char *buff, const void *arg)
 		cgi_warn("Required!");
 		return XSET_FAIL;
 	}
-	if (!lastsp) {
+	if (!lastsp&&acu>0) {
+		dbg("+ %c", acu);
 		buff_bm[char_i++] = (char)acu;
 	}
 	buff_bm[char_i] = 0;
-//	cgi_dbg("%s, chari = %d", buff_bm, char_i);
+
+	if (char_i == 0) {
+		cgi_warn("Required!");
+		return XSET_FAIL;
+	}
 
 	if (!streq(field, buff_bm)) {
 		strncpy(field, buff_bm, TERM_BTN_MSG_LEN);