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Fix #84: Reset TTY w/ stty() before taking any pre-getty action

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This patch moves the stty() function from getty.c to a separate file so
it can be called from exec.c as well.  The fix to #84 is simply to call
stty() in prepare_tty(), which is shared by run_getty() and run_getty2()
and called before "Please press Enter ...".

Signed-off-by: Joachim Nilsson <troglobit@gmail.com>
This commit is contained in:
Joachim Nilsson committed 2017-10-29 11:59:48 +01:00
1 parent b45c3d5cb8
commit 250e26f2f6
5 files changed
+79 -39
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src/getty.c
-36
View File
@@ -64,42 +64,6 @@ static int readch(char *tty)
return ch1 & 0xFF;
}
static void stty(int fd, speed_t speed)
{
struct termios term;
tcdrain(fd);
if (tcgetattr(fd, &term))
return;
cfsetispeed(&term, speed);
cfsetospeed(&term, speed);
tcsetattr(fd, TCSAFLUSH, &term);
tcflush(fd, TCIOFLUSH);
/* Disable modem specific flags */
term.c_cflag &= ~(0|CSTOPB|PARENB|PARODD);
term.c_cflag &= ~CRTSCTS;
term.c_cflag |= CLOCAL;
/* Timeouts, minimum chars and default flags */
term.c_cc[VTIME] = 0;
term.c_cc[VMIN] = 1;
term.c_iflag = ICRNL|IXON|IXOFF;
term.c_oflag = OPOST|ONLCR;
term.c_cflag |= CS8|CREAD|HUPCL|CBAUDEX;
term.c_lflag |= ICANON|ISIG|ECHO|ECHOE|ECHOK|ECHOKE;
/* Reset special characters to defaults */
term.c_cc[VINTR] = CTRL('C');
term.c_cc[VQUIT] = CTRL('\\');
term.c_cc[VEOF] = CTRL('D');
term.c_cc[VEOL] = '\n';
term.c_cc[VKILL] = CTRL('U');
term.c_cc[VERASE] = CERASE;
tcsetattr(fd, TCSANOW, &term);
}
/*
* Parse and display a line from /etc/issue
*/