Ported to Linux by Peter Orbaek <poe@daimi.aau.dk>
This program is freely distributable. The entire man-page used to
be here. Now read the real man-page agetty.8 instead.
+
+ -f option added by Eric Rasmussen <ear@usfirst.org> - 12/28/95
*/
#ifndef lint
#include <memory.h>
#include <sys/file.h>
-#ifdef linux
+#ifdef __linux__
#include "pathnames.h"
#include <sys/param.h>
#define USE_SYSLOG
* executable small on systems that do not have shared libraries (System V
* Release <3).
*/
-
+#ifndef BUFSIZ
#define BUFSIZ 1024
+#endif
/*
* When multiple baud rates are specified on the command line, the first one
int flags; /* toggle switches, see below */
int timeout; /* time-out period */
char *login; /* login program */
- int numspeed; /* number of baud rates to try */
- int speeds[MAX_SPEED]; /* baud rates to be tried */
char *tty; /* name of tty */
char *initstring; /* modem init string */
+ char *issue; /* alternative issue file */
+ int numspeed; /* number of baud rates to try */
+ int speeds[MAX_SPEED]; /* baud rates to be tried */
};
#define F_PARSE (1<<0) /* process modem status messages */
#define F_LOCAL (1<<3) /* force local */
#define F_INITSTRING (1<<4) /* initstring is set */
#define F_WAITCRLF (1<<5) /* wait for CR or LF */
+#define F_CUSTISSUE (1<<6) /* give alternative issue file */
+#define F_NOPROMPT (1<<7) /* don't ask for login name! */
/* Storage for things detected while the login name was read. */
struct chardata init_chardata = {
DEF_ERASE, /* default erase character */
DEF_KILL, /* default kill character */
- 0, /* always filled in at runtime */
+ 13, /* default eol char */
0, /* space parity */
- 0, /* always filled in at runtime */
+ 0, /* no capslock */
+};
+
+struct Speedtab {
+ long speed;
+ int code;
+};
+
+static struct Speedtab speedtab[] = {
+ { 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 },
+#ifdef B19200
+ { 19200, B19200 },
+#endif
+#ifdef B38400
+ { 38400, B38400 },
+#endif
+#ifdef EXTA
+ { 19200, EXTA },
+#endif
+#ifdef EXTB
+ { 38400, EXTB },
+#endif
+#ifdef B57600
+ { 57600, B57600 },
+#endif
+#ifdef B115200
+ { 115200, B115200 },
+#endif
+#ifdef B230400
+ { 230400, B230400 },
+#endif
+ { 0, 0 },
};
#define P_(s) ()
int argc;
char **argv;
{
- char *logname; /* login name, given to /bin/login */
+ char *logname = NULL; /* login name, given to /bin/login */
struct chardata chardata; /* set by get_logname() */
struct termio termio; /* terminal mode bits */
static struct options options = {
F_ISSUE, /* show /etc/issue (SYSV_STYLE) */
0, /* no timeout */
_PATH_LOGIN, /* default login program */
+ "tty1", /* default tty line */
+ "", /* modem init string */
+ ISSUE, /* default issue file */
0, /* no baud rates known yet */
};
#endif
#ifdef DEBUGGING
- dbf = fopen("/dev/tty1", "w");
+ dbf = fopen("/dev/ttyp0", "w");
{ int i;
parse_args(argc, argv, &options);
-#ifdef linux
+#ifdef __linux__
setsid();
#endif
update_utmp(options.tty);
#endif
+ debug("calling open_tty\n");
/* Open the tty as standard { input, output, error }. */
open_tty(options.tty, &termio, options.flags & F_LOCAL);
-#ifdef linux
+#ifdef __linux__
{
int iv;
}
#endif
/* Initialize the termio settings (raw mode, eight-bit, blocking i/o). */
-
+ debug("calling termio_init\n");
termio_init(&termio, options.speeds[FIRST_SPEED], options.flags & F_LOCAL);
- /* write the modem init string and flush the buffers */
+ /* write the modem init string and DON'T flush the buffers */
if (options.flags & F_INITSTRING) {
+ debug("writing init string\n");
write(1, options.initstring, strlen(options.initstring));
- ioctl(1, TCFLSH, 2);
}
- /* Optionally detect the baud rate from the modem status message. */
+ if (!(options.flags & F_LOCAL)) {
+ /* go to blocking write mode unless -L is specified */
+ fcntl(1, F_SETFL, fcntl(1, F_GETFL, 0) & ~O_NONBLOCK);
+ }
+ /* Optionally detect the baud rate from the modem status message. */
+ debug("before autobaud\n");
if (options.flags & F_PARSE)
auto_baud(&termio);
/* Set the optional timer. */
-
if (options.timeout)
(void) alarm((unsigned) options.timeout);
-
+
/* optionally wait for CR or LF before writing /etc/issue */
if (options.flags & F_WAITCRLF) {
char ch;
+ debug("waiting for cr-lf\n");
while(read(0, &ch, 1) == 1) {
ch &= 0x7f; /* strip "parity bit" */
+#ifdef DEBUGGING
+ fprintf(dbf, "read %c\n", ch);
+#endif
if (ch == '\n' || ch == '\r') break;
}
}
- /* Read the login name. */
-
- while ((logname = get_logname(&options, &chardata, &termio)) == 0)
- next_speed(&termio, &options);
+ chardata = init_chardata;
+ if (!(options.flags & F_NOPROMPT)) {
+ /* Read the login name. */
+ debug("reading login name\n");
+ while ((logname = get_logname(&options, &chardata, &termio)) == 0)
+ next_speed(&termio, &options);
+ }
/* Disable timer. */
extern int optind; /* getopt */
int c;
- while (isascii(c = getopt(argc, argv, "I:Lhil:mt:w"))) {
+ while (isascii(c = getopt(argc, argv, "I:Lf:hil:mt:wn"))) {
switch (c) {
case 'I':
if (!(op->initstring = malloc(strlen(optarg)))) {
case 'L': /* force local */
op->flags |= F_LOCAL;
break;
+ case 'f': /* custom issue file */
+ op->flags |= F_CUSTISSUE;
+ op->issue = optarg;
+ break;
case 'h': /* enable h/w flow control */
op->flags |= F_RTSCTS;
break;
case 'm': /* parse modem status message */
op->flags |= F_PARSE;
break;
+ case 'n':
+ op->flags |= F_NOPROMPT;
+ break;
case 't': /* time out */
if ((op->timeout = atoi(optarg)) <= 0)
error("bad timeout value: %s", optarg);
update_utmp(line)
char *line;
{
- struct utmp ut;
- long ut_size = sizeof(ut); /* avoid nonsense */
+ struct utmp ut;
+ time_t t;
int ut_fd;
int mypid = getpid();
long time();
* entry in the utmp file.
*/
-#ifdef linux
+#ifdef __linux__
utmpname(_PATH_UTMP);
setutent();
while ((utp = getutent())
memset(&ut, 0, sizeof(ut));
strncpy(ut.ut_id, line + 3, sizeof(ut.ut_id));
}
- endutent();
+ /*endutent();*/
strncpy(ut.ut_user, "LOGIN", sizeof(ut.ut_user));
strncpy(ut.ut_line, line, sizeof(ut.ut_line));
- time(&ut.ut_time);
+ time(&t);
+ ut.ut_time = t;
ut.ut_type = LOGIN_PROCESS;
ut.ut_pid = mypid;
pututline(&ut);
endutent();
- if((ut_fd = open(_PATH_WTMP, O_APPEND|O_WRONLY)) >= 0) {
- flock(ut_fd, LOCK_EX);
- write(ut_fd, &ut, sizeof(ut));
- flock(ut_fd, LOCK_UN);
- close(ut_fd);
+ {
+ int lf;
+
+ if ((lf = open(_PATH_WTMPLOCK, O_CREAT|O_WRONLY, 0660)) >= 0) {
+ flock(lf, LOCK_EX);
+ if ((ut_fd = open(_PATH_WTMP, O_APPEND|O_WRONLY)) >= 0) {
+ write(ut_fd, &ut, sizeof(ut));
+ close(ut_fd);
+ }
+ flock(lf, LOCK_UN);
+ close(lf);
+ }
}
#else
if ((ut_fd = open(UTMP_FILE, 2)) < 0) {
error("%s: open for update: %m", UTMP_FILE);
} else {
+ long ut_size = sizeof(ut); /* avoid nonsense */
+
while (read(ut_fd, (char *) &ut, sizeof(ut)) == sizeof(ut)) {
if (ut.ut_type == INIT_PROCESS && ut.ut_pid == mypid) {
ut.ut_type = LOGIN_PROCESS;
}
error("%s: no utmp entry", line);
}
-#endif /* linux */
+#endif /* __linux__ */
}
#endif
(void) close(0);
errno = 0; /* ignore close(2) errors */
- if (open(tty, (local ? O_RDWR|O_NONBLOCK : O_RDWR), 0) != 0)
+ debug("open(2)\n");
+ if (open(tty, O_RDWR|O_NONBLOCK, 0) != 0)
error("/dev/%s: cannot open as standard input: %m", tty);
} else {
}
/* Set up standard output and standard error file descriptors. */
-
+ debug("duping\n");
if (dup(0) != 1 || dup(0) != 2) /* set up stdout and stderr */
error("%s: dup problem: %m", tty); /* we have a problem */
* reads will be done in raw mode anyway. Errors will be dealt with
* lateron.
*/
-#ifdef linux
- /* flush input and output queues, important for modems! */
- (void) ioctl(0, TCFLSH, 2);
+#ifdef __linux__
+ /* flush input and output queues, important for modems! */
+ (void) ioctl(0, TCFLSH, TCIOFLUSH);
#endif
tp->c_cflag = CS8 | HUPCL | CREAD | speed;
tp->c_cc[VMIN] = 1;
tp->c_cc[VTIME] = 0;
(void) ioctl(0, TCSETA, tp);
- if (local) {
- (void) fcntl(0, F_SETFL, fcntl(0, F_GETFL, 0) & ~O_NDELAY);
- }
+
+ /* go to blocking input even in local mode */
+ fcntl(0, F_SETFL, fcntl(0, F_GETFL, 0) & ~O_NONBLOCK);
+
debug("term_io 2\n");
}
(void) write(1, "\r\n", 2); /* start a new line */
#ifdef ISSUE /* optional: show /etc/issue */
- if ((op->flags & F_ISSUE) && (fd = fopen(ISSUE, "r"))) {
+ if ((op->flags & F_ISSUE) && (fd = fopen(op->issue, "r"))) {
oflag = tp->c_oflag; /* save current setting */
tp->c_oflag |= (ONLCR | OPOST); /* map NL in output to CR-NL */
(void) ioctl(0, TCSETAW, tp);
break;
case 'o':
- (void) printf ("%s", uts.domainname);
- break;
+ {
+ char domainname[256];
+
+ getdomainname(domainname, sizeof(domainname));
+ domainname[sizeof(domainname)-1] = '\0';
+ printf ("%s", domainname);
+ }
+ break;
case 'd':
case 't':
case 'b':
{
- char *zpeedz[] = { "0", "50", "75", "110", "134.5",
- "150", "200", "300", "600", "1200",
- "1800", "2400", "4800", "9600",
- "19200", "38400" };
+ int i;
- (void) printf ("%s", zpeedz[tp->c_cflag & CBAUD]);
- break;
+ for (i = 0; speedtab[i].speed; i++) {
+ if (speedtab[i].code == (tp->c_cflag & CBAUD)) {
+ printf("%ld", speedtab[i].speed);
+ break;
+ }
+ }
+ break;
}
case 'u':
case 'U':
(void) fclose(fd);
}
#endif
-#ifdef linux
+#ifdef __linux__
{
char hn[MAXHOSTNAMELEN+1];
/* Flush pending input (esp. after parsing or switching the baud rate). */
(void) sleep(1);
- (void) ioctl(0, TCFLSH, (struct termio *) 0);
+ (void) ioctl(0, TCFLSH, TCIFLUSH);
/* Prompt for and read a login name. */
tp->c_cc[VQUIT] = DEF_QUIT; /* default quit */
tp->c_cc[VEOF] = DEF_EOF; /* default EOF character */
tp->c_cc[VEOL] = DEF_EOL;
-#ifdef linux
+#ifdef __linux__
tp->c_cc[VSWTC] = DEF_SWITCH; /* default switch character */
#else
tp->c_cc[VSWTCH] = DEF_SWITCH; /* default switch character */
bcode(s)
char *s;
{
- struct Speedtab {
- long speed;
- int code;
- };
- static struct Speedtab speedtab[] = {
- 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,
-#ifdef B19200
- 19200, B19200,
-#endif
-#ifdef B38400
- 38400, B38400,
-#endif
-#ifdef EXTA
- 19200, EXTA,
-#endif
-#ifdef EXTB
- 38400, EXTB,
-#endif
- 0, 0,
- };
struct Speedtab *sp;
long speed = atol(s);
void
usage()
{
-#if defined(SYSV_STYLE) && !defined(linux)
static char msg[] =
- "[-i] [-l login_program] [-m] [-t timeout] line baud_rate,...";
-#else
- static char msg[] =
- "[-h] [-l login_program] [-m] [-t timeout] baud_rate,... line";
-#endif
+ "[-hiLmw] [-l login_program] [-t timeout] [-I initstring] baud_rate,... line [termtype]\nor\t[-hiLmw] [-l login_program] [-t timeout] [-I initstring] line baud_rate,... [termtype]";
- error("usage: %s %s", progname, msg);
+ fprintf(stderr, "Usage: %s %s\n", progname, msg);
+ exit(1);
}
/* error - report errors to console or syslog; only understands %s and %m */
*/
#ifdef USE_SYSLOG
- (void) openlog(progname, LOG_PID, LOG_AUTH);
+ (void) openlog(progname, LOG_PID, LOG_AUTHPRIV);
(void) syslog(LOG_ERR, "%s", buf);
closelog();
#else
projects / thirdparty / util-linux.git / blobdiff