console: add question-mark escape operator
Some termcaps (found using SLES11SP1) use [? sequences. According to man console_codes (http://linux.die.net/man/4/console_codes) the question mark is a nop and should simply be ignored. This patch does exactly that, rendering screen output readable when outputting guest serial consoles to the graphical console emulator. Signed-off-by: Alexander Graf <agraf@suse.de> Message-id: 20170829113818.42482-1-agraf@suse.de Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
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@ -880,8 +880,9 @@ static void console_putchar(QemuConsole *s, int ch)
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} else {
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if (s->nb_esc_params < MAX_ESC_PARAMS)
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s->nb_esc_params++;
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if (ch == ';')
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if (ch == ';' || ch == '?') {
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break;
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}
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trace_console_putchar_csi(s->esc_params[0], s->esc_params[1],
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ch, s->nb_esc_params);
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s->state = TTY_STATE_NORM;
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