Detect error on character input

Previously an error from the character input routine wgetch() was
silently ignored. It should still be ignored, but must explicitly be
detected in order to be ignored. The issue came up in connection with
terminal window resize. For whatever reasons ncurses returns ERR (as
well as KEY_RESIZE) when wgetch() asks for input after a resize.

Signed-off-by: Lukas Fleischer <lfleischer@calcurse.org>

1 files changed, 5 insertions, 1 deletions

diff --git a/src/keys.c b/src/keys.c
index 68eca76..4e608c7 100644
--- a/src/keys.c
+++ b/src/keys.c
@@ -247,8 +247,12 @@ int keys_wgetch(WINDOW *win)
 	int ch, i;
 	char buf[UTF8_MAXLEN];
 
+	ch = wgetch(win);
+	if (ch == ERR)
+		return ch;
+
 	/* Handle curses pseudo characters. */
-	if ((ch = wgetch(win)) >= KEY_MIN)
+	if (ch >= KEY_MIN)
 		return ch;
 
 	/* Handle 1-byte UTF-8 characters. */