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Use tcflush() in patty_kiss_tnc_new()

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Use tcflush() to initialize TTY state in patty_kiss_tnc_new(), so that
no unexpected data causes KISS framing errors
This commit is contained in:
XANTRONIX Development 2020-08-08 22:47:26 -04:00 • committed by XANTRONIX Industrial
parent 08509999c4
commit b99a6607ba
1 changed files with 5 additions and 0 deletions
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5
src/kiss.c
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@ -143,6 +143,10 @@ patty_kiss_tnc *patty_kiss_tnc_new_fd(int fd) {
if (tcsetattr(fd, TCSANOW, &tnc->attrs) < 0) { if (tcsetattr(fd, TCSANOW, &tnc->attrs) < 0) {
goto error_tcsetattr; goto error_tcsetattr;
} }
if (tcflush(fd, TCIOFLUSH) < 0) {
goto error_tcflush;
}
} }
tnc->fd = fd; tnc->fd = fd;
@ -154,6 +158,7 @@ patty_kiss_tnc *patty_kiss_tnc_new_fd(int fd) {
return tnc; return tnc;
error_tcflush:
error_tcsetattr: error_tcsetattr:
error_tcgetattr: error_tcgetattr:
error_malloc_buf: error_malloc_buf: