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authorDenys Vlasenko <vda.linux@googlemail.com>2011-01-26 14:56:51 (GMT)
committer Denys Vlasenko <vda.linux@googlemail.com>2011-01-26 14:56:51 (GMT)
commitcf9d33a894230479b317ccee120342e3a32c836c (patch)
treee5bf99cd2aab7747af551b9ba7f71216ba5f5d15
parentddd1ec1c279da19a79238ce9df820d79415fa33a (diff)
downloadbusybox-cf9d33a894230479b317ccee120342e3a32c836c.tar.gz
busybox-cf9d33a894230479b317ccee120342e3a32c836c.tar.bz2
getty: do not clear all c_cflag's (we were clearing baud bits!)
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
-rw-r--r--loginutils/getty.c40
1 files changed, 28 insertions, 12 deletions
diff --git a/loginutils/getty.c b/loginutils/getty.c
index 0355341..3cf296e 100644
--- a/loginutils/getty.c
+++ b/loginutils/getty.c
@@ -258,13 +258,34 @@ static void termios_init(int speed)
if (speed != B0)
cfsetspeed(&G.termios, speed);
- /* Initial termios settings: 8-bit characters, raw-mode, blocking i/o.
+ /* Initial termios settings: 8-bit characters, raw mode, blocking i/o.
* Special characters are set after we have read the login name; all
- * reads will be done in raw mode anyway. Errors will be dealt with
- * later on.
+ * reads will be done in raw mode anyway.
*/
- /* 8 bits; hang up (drop DTR) on last close; enable receive */
- G.termios.c_cflag = CS8 | HUPCL | CREAD;
+ /* Clear all bits except: */
+ G.termios.c_cflag &= (0
+ /* 2 stop bits (1 otherwise)
+ * Enable parity bit (both on input and output)
+ * Odd parity (else even)
+ */
+ | CSTOPB | PARENB | PARODD
+#ifdef CBAUDEX
+ | CMSPAR /* mark or space parity */
+#endif
+ | CBAUD /* (output) baud rate */
+#ifdef CBAUDEX
+ | CBAUDEX /* (output) baud rate */
+#endif
+#ifdef CIBAUD
+ | CIBAUD /* input baud rate */
+#endif
+#ifdef CRTSCTS
+ | CRTSCTS /* flow control using RTS/CTS pins */
+#endif
+ | CLOCAL
+ );
+ /* Set: 8 bits; hang up (drop DTR) on last close; enable receive */
+ G.termios.c_cflag |= CS8 | HUPCL | CREAD;
if (option_mask32 & F_LOCAL) {
/* ignore Carrier Detect pin:
* opens don't block when CD is low,
@@ -274,13 +295,8 @@ static void termios_init(int speed)
}
#ifdef CRTSCTS
if (option_mask32 & F_RTSCTS)
- G.termios.c_cflag |= CRTSCTS; /* flow control using RTS/CTS pins */
+ G.termios.c_cflag |= CRTSCTS;
#endif
- /* Other bits in c_cflag:
- * CSTOPB 2 stop bits (1 otherwise)
- * PARENB Enable parity bit (both on input and output)
- * PARODD Odd parity (else even)
- */
G.termios.c_iflag = 0;
G.termios.c_lflag = 0;
/* non-raw output; add CR to each NL */
@@ -415,7 +431,7 @@ static void auto_baud(void)
}
}
- /* Restore terminal settings. Errors will be dealt with later on */
+ /* Restore terminal settings */
G.termios.c_cc[VMIN] = 1; /* restore to value set by termios_init */
set_termios();
}