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/*
* SPDX-FileCopyrightText: 1989 - 1994, Julianne Frances Haugh
* SPDX-FileCopyrightText: 1996 - 1999, Marek Michałkiewicz
* SPDX-FileCopyrightText: 2003 - 2005, Tomasz Kłoczko
* SPDX-FileCopyrightText: 2007 - 2008, Nicolas François
*
* SPDX-License-Identifier: BSD-3-Clause
*/
#include <config.h>
#ifdef RLOGIN
#ident "$Id$"
#include "prototypes.h"
#include "defines.h"
#include <stdio.h>
#include <pwd.h>
#include <netdb.h>
static struct {
int spd_name;
int spd_baud;
} speed_table[] =
{
{ B50, 50},
{ B75, 75},
{ B110, 110},
{ B134, 134},
{ B150, 150},
{ B200, 200},
{ B300, 300},
{ B600, 600},
{ B1200, 1200},
{ B1800, 1800},
{ B2400, 2400},
{ B4800, 4800},
{ B9600, 9600},
{ B19200, 19200},
{ B38400, 38400},
{ -1, -1}
};
static void
get_remote_string(char *buf, size_t size)
{
for (;;) {
if (read (0, buf, 1) != 1) {
exit (EXIT_FAILURE);
}
if ('\0' == *buf) {
return;
}
--size;
if (size > 0) {
++buf;
}
}
/*NOTREACHED*/
}
int
do_rlogin(const char *remote_host, char *name, size_t namesize, char *term,
size_t termsize)
{
struct passwd *pwd;
char remote_name[32];
char *cp;
unsigned long remote_speed = 9600;
int speed_name = B9600;
int i;
TERMIO termio;
get_remote_string(remote_name, sizeof(remote_name));
get_remote_string(name, namesize);
get_remote_string(term, termsize);
cp = strchr (term, '/');
if (NULL != cp) {
*cp = '\0';
cp++;
if (getulong(cp, &remote_speed) == -1) {
remote_speed = 9600;
}
}
for (i = 0;
( (speed_table[i].spd_baud != remote_speed)
&& (speed_table[i].spd_name != -1));
i++);
if (-1 != speed_table[i].spd_name) {
speed_name = speed_table[i].spd_name;
}
/*
* Put the terminal in cooked mode with echo turned on.
*/
GTTY (0, &termio);
termio.c_iflag |= ICRNL | IXON;
termio.c_oflag |= OPOST | ONLCR;
termio.c_lflag |= ICANON | ECHO | ECHOE;
#ifdef CBAUD
termio.c_cflag = (termio.c_cflag & ~CBAUD) | speed_name;
#else
termio.c_cflag = (termio.c_cflag) | speed_name;
#endif
STTY (0, &termio);
pwd = getpwnam (name); /* local, no need for xgetpwnam */
if (NULL == pwd) {
return 0;
}
/*
* ruserok() returns 0 for success on modern systems, and 1 on
* older ones. If you are having trouble with people logging
* in without giving a required password, THIS is the culprit -
* go fix the #define in config.h.
*/
#ifndef RUSEROK
return 0;
#else
return ruserok (remote_host, pwd->pw_uid == 0,
remote_name, name) == RUSEROK;
#endif
}
#endif /* RLOGIN */
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