Refactor, move speed parser from getty() to prepare_tty()

This patch relocates the speed parser so that exec.c can set the TTY
speed properly as soon as possible.  For external getty we make sure
to not touch the TTY speed.

Signed-off-by: Joachim Nilsson <troglobit@gmail.com>

src/getty.c

@@ -208,73 +208,12 @@ static int do_login(char *name)
 	return 1;	/* We shouldn't get here ... */
 }
 
-static speed_t do_parse_speed(char *baud)
-{
-	char *ptr;
-	size_t i;
-	unsigned long val;
-	struct { unsigned long val; speed_t speed; } v2s[] = {
-		{       0, B0       },
-		{      50, B50      },
-		{      75, B75      },
-		{     110, B110     },
-		{     134, B134     },
-		{     150, B150     },
-		{     200, B200     },
-		{     300, B300     },
-		{     600, B600     },
-		{    1200, B1200    },
-		{    1800, B1800    },
-		{    2400, B2400    },
-		{    4800, B4800    },
-		{    9600, B9600    },
-		{   19200, B19200   },
-		{   38400, B38400   },
-		{   57600, B57600   },
-		{  115200, B115200  },
-		{  230400, B230400  },
-		{  460800, B460800  },
-		{  500000, B500000  },
-		{  576000, B576000  },
-		{  921600, B921600  },
-		{ 1000000, B1000000 },
-		{ 1152000, B1152000 },
-		{ 1500000, B1500000 },
-		{ 2000000, B2000000 },
-		{ 2500000, B2500000 },
-		{ 3000000, B3000000 },
-		{ 3500000, B3500000 },
-		{ 4000000, B4000000 },
-	};
-
-	errno = 0;
-	val = strtoul(baud, &ptr, 10);
-	if (errno || ptr == baud)
-		return B0;
-
-	for (i = 0; i < sizeof(v2s) / sizeof(v2s[0]); i++) {
-		if (v2s[i].val == val)
-			return v2s[i].speed;
-	}
-
-	return B0;
-}
-
-int getty(char *tty, char *baud, char *term, char *user)
+int getty(char *tty, speed_t speed, char *term, char *user)
 {
 	int fd;
 	char name[30];
-	speed_t speed = B38400;
 	struct sigaction sa;
 
-	if (baud) {
-		speed = do_parse_speed(baud);
-		if (speed == B0) {
-			logit(LOG_CRIT, "TTY %s: Invalid speed %s", tty, baud);
-			return 1;
-		}
-	}
-
 	/* Detach from initial controlling TTY */
 	vhangup();