console: report detach message on demand

When users pass -1 there's there won't be an escape sequence to exit the console so no need to print a misleading info message about how to detach. Signed-off-by: Christian Brauner <christian.brauner@ubuntu.com>

console: report detach message on demand
686df166 · Christian Brauner · c83280b7 · 686df166
Unverified Commit 686df166 authored Nov 10, 2017 by Christian Brauner
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console.c src/lxc/console.c +4 -1

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--- a/src/lxc/console.c
+++ b/src/lxc/console.c
@@ -832,11 +832,14 @@ int lxc_console(struct lxc_container *c, int ttynum,
 		goto close_mainloop;
 	}
-	fprintf(stderr, "\n"
+	if (ts->escape >= 1) {
+		fprintf(stderr,
+			"\n"
 			"Connected to tty %1$d\n"
 			"Type <Ctrl+%2$c q> to exit the console, "
 			"<Ctrl+%2$c Ctrl+%2$c> to enter Ctrl+%2$c itself\n",
 			ttynum, 'a' + escape - 1);
+	}
 	if (istty) {
 		ret = lxc_setup_tios(stdinfd, &oldtios);