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/* $Id: after_login.c,v 1.5 2001/04/22 15:20:38 japh Exp $
* after_login.c -- what to do after a login, before executing the shell
*
* fancylogin uses ncurses to display a colorful login-
* screen with input-masks.
*
* 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, 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.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software Foundation,
* Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*
* Written by Richard Bergmair and Andreas Krennmair.
*/
#ifdef HAVE_CONFIG_H
# include "config.h"
#endif
#include "after_login.h"
#include "limits.h"
#include "definitions.h"
#include "environment.h"
#include "log_message.h"
#include "emergency.h"
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <pwd.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <fcntl.h>
#include <unistd.h>
#include <utmp.h>
#include <time.h>
#include <malloc.h>
static void print_welcome(struct passwd *userinfo);
static int print_lastlog(struct lastlog *oldlog);
static void print_motd(void);
static void check_mail(struct passwd *userinfo);
void after_login(uid_t uid, char *rmthost, struct lastlog *oldlog);
/*****************************************************************************/
/* print_welcome: prints the "Welcome, username" message after the login. */
/*****************************************************************************/
static void
print_welcome (struct passwd *userinfo)
{
char *name;
if ((userinfo->pw_gecos == NULL) || (userinfo->pw_gecos[0] == 0))
name=userinfo->pw_name;
else
name=strtok(userinfo->pw_gecos,",");
printf ("Welcome, %s!\n\n", name);
}
/*****************************************************************************/
/* print_lastlog: prints location and time of the last login. */
/*****************************************************************************/
static int
print_lastlog (struct lastlog *oldlog)
{
char *strtime;
/* convert ll_time to a human-readable string */
strtime = ctime (&(oldlog->ll_time));
/* print some information */
printf (oldlog->ll_time?"Last login was from %s, at %s\n":
"This is your first login\n",
oldlog->ll_line, strtime);
return 0;
}
/*****************************************************************************/
/* print_motd: prints the message of the day */
/*****************************************************************************/
static void
print_motd (void)
{
FILE *motd;
int c;
if ((motd = fopen ("/etc/motd", "r")) != NULL) /* open the file */
{
while ((c = fgetc(motd)) != EOF) /* print the file */
fputc (c, stdout);
fclose (motd); /* close the file */
}
}
/*****************************************************************************/
/* check_mail: checks the current state of the user's mailbox */
/*****************************************************************************/
static void
check_mail(struct passwd *userinfo)
{
struct stat statbuf;
char *mailbox;
if (get_check_email())
{
if ((mailbox = getenv("MAILDIR"))!=NULL)
{
char * newmail;
newmail = malloc(strlen(mailbox) + 5);
if (newmail)
{
/* What's the mailbox filename? */
sprintf(newmail, "%s/new", mailbox);
/* Now let's get some information on the file */
if ((stat(newmail, &statbuf) != -1) && (statbuf.st_size != 0))
/*
* is st_mtime (time of last modification) greater than
* st_atime (time of last access)?
*/
if (statbuf.st_mtime > statbuf.st_atime)
{
free(newmail);
printf(MSG_NEWMAIL);
return;
}
free(newmail);
}
}
mailbox = malloc(strlen(MAILBOX_PATH)+strlen(userinfo->pw_name)+1);
if (mailbox)
{
strcpy(mailbox,MAILBOX_PATH);
strcat(mailbox,userinfo->pw_name);
if ((stat(mailbox, &statbuf) == -1) || (statbuf.st_size == 0))
printf(MSG_NOMAIL);
else
if (statbuf.st_atime > statbuf.st_mtime)
printf(MSG_SEENMAIL);
else
printf(MSG_NEWMAIL);
}
printf("\n\n");
}
}
/*****************************************************************************/
/* after_login: All the stuff we have to do after a successful login */
/*****************************************************************************/
void
after_login (uid_t uid, char *rmthost, struct lastlog *oldlog)
{
struct passwd *userinfo;
userinfo = getpwuid(uid);
if (userinfo)
print_welcome (userinfo);
print_lastlog (oldlog);
print_motd ();
printf ("\n");
if (userinfo)
check_mail(userinfo);
fflush(stdout);
}
/*****************************************************************************/
/* (c) Copyright 1999-2000 Richard Bergmair, 2000-2001 Andreas Krennmair */
/*****************************************************************************/
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