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Don't tcsetattr() ptmx in patty_kiss_tnc_destroy()

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Avoid tcsetattr() on a ptmx in patty_kiss_tnc_destroy(), as the old
attributes are not saved when opening a Unix98 PTY master
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XANTRONIX Development 2020-08-02 01:11:53 -04:00 • committed by XANTRONIX Industrial
parent 1f4ffc98ac
commit 671d4ef337
1 changed files with 3 additions and 1 deletions
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4
src/kiss.c
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@ -144,7 +144,9 @@ int patty_kiss_tnc_fd(patty_kiss_tnc *tnc) {
} }
void patty_kiss_tnc_destroy(patty_kiss_tnc *tnc) { void patty_kiss_tnc_destroy(patty_kiss_tnc *tnc) {
(void)tcsetattr(tnc->fd, TCSANOW, &tnc->attrs_old); if (isatty(tnc->fd) && ptsname(tnc->fd) == NULL) {
(void)tcsetattr(tnc->fd, TCSANOW, &tnc->attrs_old);
}
if (tnc->opts & TNC_CLOSE_ON_DESTROY) { if (tnc->opts & TNC_CLOSE_ON_DESTROY) {
close(tnc->fd); close(tnc->fd);