* 1999-05-05 Thorsten Kranzkowski <dl8bcu@gmx.net>
* - enable hardware flow control before displaying /etc/issue
*
- * Licensed under GPLv2 or later, see file LICENSE in this tarball for details.
+ * Licensed under GPLv2 or later, see file LICENSE in this source tree.
*/
#include "libbb.h"
#include <syslog.h>
#if ENABLE_FEATURE_UTMP
-#include <utmp.h> /* LOGIN_PROCESS */
+# include <utmp.h> /* LOGIN_PROCESS */
#endif
#ifndef IUCLC
ts = argv[0]; /* baud rate(s) */
}
parse_speeds(op, ts);
-
-// TODO: if applet_name is set to "getty: TTY", bb_error_msg's get simpler!
-// grep for "%s:"
+ applet_name = xasprintf("getty: %s", op->tty);
if (argv[2])
xsetenv("TERM", argv[2]);
// xchdir("/dev");
// xstat(tty, &st);
// if (!S_ISCHR(st.st_mode))
-// bb_error_msg_and_die("%s: not a character device", tty);
+// bb_error_msg_and_die("not a character device");
if (tty[0] != '/')
tty = xasprintf("/dev/%s", tty); /* will leak it */
* reads will be done in raw mode anyway. Errors will be dealt with
* later on.
*/
-#ifdef __linux__
/* flush input and output queues, important for modems! */
- ioctl(0, TCFLSH, TCIOFLUSH); /* tcflush(0, TCIOFLUSH)? - same */
-#endif
+ tcflush(0, TCIOFLUSH);
ispeed = ospeed = speed;
if (speed == B0) {
/* Speed was specified as "0" on command line.
cfsetispeed(tp, ispeed);
cfsetospeed(tp, ospeed);
- tp->c_iflag = tp->c_lflag = tp->c_line = 0;
+ tp->c_iflag = tp->c_lflag = 0;
tp->c_oflag = OPOST | ONLCR;
tp->c_cc[VMIN] = 1;
tp->c_cc[VTIME] = 0;
+#ifdef __linux__
+ tp->c_line = 0;
+#endif
/* Optionally enable hardware flow control */
#ifdef CRTSCTS
for (bp = buf; bp < buf + nread; bp++) {
if (isdigit(*bp)) {
speed = bcode(bp);
- if (speed > 0) {
- tp->c_cflag &= ~CBAUD;
- tp->c_cflag |= speed;
- }
+ if (speed > 0)
+ cfsetspeed(tp, speed);
break;
}
}
/* Flush pending input (esp. after parsing or switching the baud rate). */
sleep(1);
- ioctl(0, TCFLSH, TCIFLUSH); /* tcflush(0, TCIOFLUSH)? - same */
+ tcflush(0, TCIOFLUSH);
/* Prompt for and read a login name. */
logname[0] = '\0';
while (cp->eol == '\0') {
/* Do not report trivial EINTR/EIO errors. */
+ errno = EINTR; /* make read of 0 bytes be silent too */
if (read(STDIN_FILENO, &c, 1) < 1) {
if (errno == EINTR || errno == EIO)
exit(EXIT_SUCCESS);
- bb_perror_msg_and_die("%s: read", op->tty);
+ bb_perror_msg_and_die(bb_msg_read_error);
}
/* BREAK. If we have speeds to try,
if (ascval < ' ') {
/* ignore garbage characters */
} else if ((int)(bp - logname) >= size_logname - 1) {
- bb_error_msg_and_die("%s: input overrun", op->tty);
+ bb_error_msg_and_die("input overrun");
} else {
full_write(STDOUT_FILENO, &c, 1); /* echo the character */
*bp++ = ascval; /* and store it */
tp->c_cc[VQUIT] = DEF_QUIT; /* default quit */
tp->c_cc[VEOF] = DEF_EOF; /* default EOF character */
tp->c_cc[VEOL] = DEF_EOL;
+#ifdef VSWTC
tp->c_cc[VSWTC] = DEF_SWITCH; /* default switch character */
+#endif
/* Account for special characters seen in input. */
if (cp->eol == CR) {
#endif
/* Finally, make the new settings effective */
- /* It's tcsetattr_stdin_TCSANOW() + error check */
- ioctl_or_perror_and_die(0, TCSETS, tp, "%s: TCSETS", op->tty);
+ if (tcsetattr_stdin_TCSANOW(tp) < 0)
+ bb_perror_msg_and_die("tcsetattr");
}
int getty_main(int argc, char **argv) MAIN_EXTERNALLY_VISIBLE;
int getty_main(int argc UNUSED_PARAM, char **argv)
{
int n;
+ pid_t pid;
char *fakehost = NULL; /* Fake hostname for ut_host */
char *logname; /* login name, given to /bin/login */
/* Merging these into "struct local" may _seem_ to reduce
* by patching the SunOS kernel variable "zsadtrlow" to a larger value;
* 5 seconds seems to be a good value.
*/
- /* tcgetattr() + error check */
- ioctl_or_perror_and_die(0, TCGETS, &termios, "%s: TCGETS", options.tty);
+ if (tcgetattr(0, &termios) < 0)
+ bb_perror_msg_and_die("tcgetattr");
+ pid = getpid();
#ifdef __linux__
// FIXME: do we need this? Otherwise "-" case seems to be broken...
// /* Forcibly make fd 0 our controlling tty, even if another session
// * has it as a ctty. (Another session loses ctty). */
// ioctl(0, TIOCSCTTY, (void*)1);
/* Make ourself a foreground process group within our session */
- tcsetpgrp(0, getpid());
+ tcsetpgrp(0, pid);
#endif
/* Update the utmp file. This tty is ours now! */
- update_utmp(LOGIN_PROCESS, options.tty, "LOGIN", fakehost);
+ update_utmp(pid, LOGIN_PROCESS, options.tty, "LOGIN", fakehost);
/* Initialize the termios settings (raw mode, eight-bit, blocking i/o). */
debug("calling termios_init\n");
/* Write the modem init string and DON'T flush the buffers */
if (options.flags & F_INITSTRING) {
debug("writing init string\n");
- /* todo: use xwrite_str? */
- full_write(STDOUT_FILENO, options.initstring, strlen(options.initstring));
+ full_write1_str(options.initstring);
}
/* Optionally detect the baud rate from the modem status message */
* and getty is not suid-root applet. */
/* With -n, logname == NULL, and login will ask for username instead */
BB_EXECLP(options.login, options.login, "--", logname, NULL);
- bb_error_msg_and_die("%s: can't exec %s", options.tty, options.login);
+ bb_error_msg_and_die("can't execute '%s'", options.login);
}
projects / oweals / busybox.git / blobdiff