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/* fics_addplayer.c
 *
 */

/*
    fics - An internet chess server.
    Copyright (C) 1994  Richard V. Nash

    This program is free software; you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
    the Free Software Foundation; either version 2 of the License, or
    (at your option) any later version.

    This program is distributed in the hope that it will be useful,
    but WITHOUT ANY WARRANTY; without even the implied warranty of
    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
    GNU General Public License for more details.
*/

/* Revision history:
   name		email		yy/mm/dd	Change
   Richard Nash	              	94/03/07	Created
   Markus Uhlin			23/12/09	Revamped the file
   Markus Uhlin			23/12/23	Fixed crypt()
   Markus Uhlin			23/12/28	Switched to arc4random_uniform()
   Markus Uhlin			24/01/01	Size-bounded copying
   Markus Uhlin			24/04/01	Fixed empty hostname
   Markus Uhlin			24/04/04	Added usage of explicit_bzero()
*/

#include "stdinclude.h"
#include "common.h"

#include <err.h>
#include <string.h>

#include "command.h"
#include "config.h"
#include "fics_getsalt.h"
#include "playerdb.h"
#include "utils.h"

#if __linux__
#include <bsd/string.h>
#endif

#define PASSLEN 8

PRIVATE char *funame = NULL;
PRIVATE char *fname = NULL;
PRIVATE char *email = NULL;

PRIVATE __dead void
usage(char *progname)
{
	fprintf(stderr, "Usage: %s <UserName> <FullName> <EmailAddress>\n",
	    progname);
	exit(1);
}

PUBLIC int
main(int argc, char *argv[])
{
	char	 password[PASSLEN + 1];
	char	 salt[FICS_SALT_SIZE];
	char	 text[2048];
	int	 i;
	int	 p;

	for (i = 1; i < argc; i++) {
		if (argv[i][0] == '-') {
			switch (argv[i][1]) {
			default:
				usage(argv[0]);
				break;
			}
		} else {
			if (funame == NULL)
				funame = argv[i];
			else if (fname == NULL)
				fname = argv[i];
			else if (email == NULL)
				email = argv[i];
			else
				usage(argv[0]);
		}
	}

	if (funame == NULL || fname == NULL || email == NULL)
		usage(argv[0]);

	/* Add the player here */
	if (strlen(funame) >= MAX_LOGIN_NAME)
		errx(1, "Player name is too long");
	else if (strlen(funame) < 3)
		errx(1, "Player name is too short");
	else if (!alphastring(funame)) {
		errx(1, "Illegal characters in player name. "
		    "Only A-Za-z allowed.");
	}

	player_init(0);
	p = player_new();

	if (!player_read(p, funame))
		errx(1, "%s already exists.", funame);

	parray[p].name		= xstrdup(funame);
	parray[p].login		= stolower(xstrdup(funame));
	parray[p].fullName	= xstrdup(fname);
	parray[p].emailAddress	= xstrdup(email);

	for (i = 0; i < PASSLEN; i++)
		password[i] = ('a' + arc4random_uniform(26));
	password[i] = '\0';

	if (strlcpy(salt, fics_getsalt(), sizeof salt) >= sizeof salt)
		errx(1, "salt truncated");

	parray[p].passwd	= xstrdup(crypt(password, salt));
	parray[p].registered	= 1;
	parray[p].rated		= 1;

	player_save(p);

	printf("Added player account: >%s< >%s< >%s< >%s<\n",
	       funame, fname, email, password);

	snprintf(text, sizeof text,
	    "\nYour player account has been created.\n\n"
	    "Login Name: %s\n"
	    "Full Name: %s\n"
	    "Email Address: %s\n"
	    "Initial Password: %s\n\n"

	    "If any of this information is incorrect, please\n"
	    "contact the administrator to get it corrected.\n\n"

	    "You may change your password with the password\n"
	    "command on the server.\n\n"

	    "Please be advised that if this is an unauthorized\n"
	    "duplicate account for you, by using it you take\n"
	    "the risk of being banned from accessing this chess\n"
	    "server.\n\n"

	    "To connect to the server and use this account:\n\n"
	    "\ttelnet %s 5000\n\n"
	    "and enter your handle name and password.\n\n"

	    "Regards,\n\nThe FICS admins\n", funame, fname, email, password,
	    SERVER_HOSTNAME);

	mail_string_to_address(email, "FICS Account Created", text);
	explicit_bzero(password, sizeof(password));
	explicit_bzero(text, sizeof(text));
	return 0;
}