190926Snectar/************************************************************************ 290926Snectar* Copyright 1995 by Wietse Venema. All rights reserved. Some individual 390926Snectar* files may be covered by other copyrights. 490926Snectar* 590926Snectar* This material was originally written and compiled by Wietse Venema at 690926Snectar* Eindhoven University of Technology, The Netherlands, in 1990, 1991, 790926Snectar* 1992, 1993, 1994 and 1995. 890926Snectar* 990926Snectar* Redistribution and use in source and binary forms, with or without 1090926Snectar* modification, are permitted provided that this entire copyright notice 1190926Snectar* is duplicated in all such copies. 1290926Snectar* 1390926Snectar* This software is provided "as is" and without any expressed or implied 1490926Snectar* warranties, including, without limitation, the implied warranties of 1590926Snectar* merchantibility and fitness for any particular purpose. 1690926Snectar************************************************************************/ 1755682Smarkm/* Author: Wietse Venema <wietse@wzv.win.tue.nl> */ 1855682Smarkm 1955682Smarkm#include "login_locl.h" 2055682Smarkm 21233294SstasRCSID("$Id$"); 2255682Smarkm 2355682Smarkm/* utmpx_login - update utmp and wtmp after login */ 2455682Smarkm 2555682Smarkm#ifndef HAVE_UTMPX_H 2655682Smarkmint utmpx_login(char *line, const char *user, const char *host) { return 0; } 2755682Smarkm#else 2855682Smarkm 2955682Smarkmstatic void 3055682Smarkmutmpx_update(struct utmpx *ut, char *line, const char *user, const char *host) 3155682Smarkm{ 3255682Smarkm struct timeval tmp; 3355682Smarkm char *clean_tty = clean_ttyname(line); 3455682Smarkm 3555682Smarkm strncpy(ut->ut_line, clean_tty, sizeof(ut->ut_line)); 3655682Smarkm#ifdef HAVE_STRUCT_UTMPX_UT_ID 3755682Smarkm strncpy(ut->ut_id, make_id(clean_tty), sizeof(ut->ut_id)); 3855682Smarkm#endif 3955682Smarkm strncpy(ut->ut_user, user, sizeof(ut->ut_user)); 4078527Sassar shrink_hostname (host, ut->ut_host, sizeof(ut->ut_host)); 4155682Smarkm#ifdef HAVE_STRUCT_UTMPX_UT_SYSLEN 4255682Smarkm ut->ut_syslen = strlen(host) + 1; 4355682Smarkm if (ut->ut_syslen > sizeof(ut->ut_host)) 4455682Smarkm ut->ut_syslen = sizeof(ut->ut_host); 4555682Smarkm#endif 4655682Smarkm ut->ut_type = USER_PROCESS; 4755682Smarkm gettimeofday (&tmp, 0); 4855682Smarkm ut->ut_tv.tv_sec = tmp.tv_sec; 4955682Smarkm ut->ut_tv.tv_usec = tmp.tv_usec; 5055682Smarkm pututxline(ut); 5155682Smarkm#ifdef WTMPX_FILE 5255682Smarkm updwtmpx(WTMPX_FILE, ut); 5355682Smarkm#elif defined(WTMP_FILE) 54233294Sstas { /* XXX should be removed, just drop wtmp support */ 5555682Smarkm struct utmp utmp; 5655682Smarkm int fd; 5755682Smarkm 5855682Smarkm prepare_utmp (&utmp, line, user, host); 5955682Smarkm if ((fd = open(_PATH_WTMP, O_WRONLY|O_APPEND, 0)) >= 0) { 6055682Smarkm write(fd, &utmp, sizeof(struct utmp)); 6155682Smarkm close(fd); 6255682Smarkm } 6355682Smarkm } 6455682Smarkm#endif 6555682Smarkm} 6655682Smarkm 6755682Smarkmint 6855682Smarkmutmpx_login(char *line, const char *user, const char *host) 6955682Smarkm{ 7055682Smarkm struct utmpx *ut, save_ut; 7155682Smarkm pid_t mypid = getpid(); 7255682Smarkm int ret = (-1); 7355682Smarkm 7455682Smarkm /* 7555682Smarkm * SYSV4 ttymon and login use tty port names with the "/dev/" prefix 7655682Smarkm * stripped off. Rlogind and telnetd, on the other hand, make utmpx 7755682Smarkm * entries with device names like /dev/pts/nnn. We therefore cannot use 7855682Smarkm * getutxline(). Return nonzero if no utmp entry was found with our own 7955682Smarkm * process ID for a login or user process. 8055682Smarkm */ 8155682Smarkm 8255682Smarkm while ((ut = getutxent())) { 8355682Smarkm /* Try to find a reusable entry */ 8455682Smarkm if (ut->ut_pid == mypid 8555682Smarkm && ( ut->ut_type == INIT_PROCESS 8655682Smarkm || ut->ut_type == LOGIN_PROCESS 8755682Smarkm || ut->ut_type == USER_PROCESS)) { 8855682Smarkm save_ut = *ut; 8955682Smarkm utmpx_update(&save_ut, line, user, host); 9055682Smarkm ret = 0; 9155682Smarkm break; 9255682Smarkm } 9355682Smarkm } 9455682Smarkm if (ret == -1) { 9555682Smarkm /* Grow utmpx file by one record. */ 9655682Smarkm struct utmpx newut; 9755682Smarkm memset(&newut, 0, sizeof(newut)); 9855682Smarkm newut.ut_pid = mypid; 9955682Smarkm utmpx_update(&newut, line, user, host); 10055682Smarkm ret = 0; 10155682Smarkm } 10255682Smarkm endutxent(); 10355682Smarkm return (ret); 10455682Smarkm} 10555682Smarkm#endif /* HAVE_UTMPX_H */ 106