appl/ftp/ftpd/logwtmp.c

   1 /*
   2  * Copyright (c) 1995, 1996, 1997 Kungliga Tekniska Högskolan
   3  * (Royal Institute of Technology, Stockholm, Sweden).
   4  * All rights reserved.
   5  *
   6  * Redistribution and use in source and binary forms, with or without
   7  * modification, are permitted provided that the following conditions
   8  * are met:
   9  *
  10  * 1. Redistributions of source code must retain the above copyright
  11  *    notice, this list of conditions and the following disclaimer.
  12  *
  13  * 2. Redistributions in binary form must reproduce the above copyright
  14  *    notice, this list of conditions and the following disclaimer in the
  15  *    documentation and/or other materials provided with the distribution.
  16  *
  17  * 3. All advertising materials mentioning features or use of this software
  18  *    must display the following acknowledgement:
  19  *      This product includes software developed by the Kungliga Tekniska
  20  *      Högskolan and its contributors.
  21  *
  22  * 4. Neither the name of the Institute nor the names of its contributors
  23  *    may be used to endorse or promote products derived from this software
  24  *    without specific prior written permission.
  25  *
  26  * THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND
  27  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  28  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  29  * ARE DISCLAIMED.  IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE
  30  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  31  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  32  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  33  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  34  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  35  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  36  * SUCH DAMAGE.
  37  */
  38
  39 #ifdef HAVE_CONFIG_H
  40 #include <config.h>
  41 RCSID("$Id$");
  42 #endif
  43
  44 #include <stdio.h>
  45 #include <string.h>
  46 #ifdef TIME_WITH_SYS_TIME
  47 #include <sys/time.h>
  48 #include <time.h>
  49 #elif defined(HAVE_SYS_TIME_H)
  50 #include <sys/time.h>
  51 #else
  52 #include <time.h>
  53 #endif
  54 #ifdef HAVE_UNISTD_H
  55 #include <unistd.h>
  56 #endif
  57 #ifdef HAVE_FCNTL_H
  58 #include <fcntl.h>
  59 #endif
  60 #ifdef HAVE_UTMP_H
  61 #include <utmp.h>
  62 #endif
  63 #ifdef HAVE_UTMPX_H
  64 #include <utmpx.h>
  65 #endif
  66 #include "extern.h"
  67
  68 #ifndef WTMP_FILE
  69 #ifdef _PATH_WTMP
  70 #define WTMP_FILE _PATH_WTMP
  71 #else
  72 #define WTMP_FILE "/var/adm/wtmp"
  73 #endif
  74 #endif
  75
  76 void
  77 logwtmp(char *line, char *name, char *host)
  78 {
  79     static int init = 0;
  80     static int fd, fdx;
  81     struct timeval tv;
  82     struct utmp ut;
  83 #ifdef WTMPX_FILE
  84     struct utmpx utx;
  85 #endif
  86
  87     memset(&ut, 0, sizeof(struct utmp));
  88 #ifdef HAVE_UT_TYPE
  89     if(name[0])
  90         ut.ut_type = USER_PROCESS;
  91     else
  92         ut.ut_type = DEAD_PROCESS;
  93 #endif
  94     strncpy(ut.ut_line, line, sizeof(ut.ut_line));
  95     strncpy(ut.ut_name, name, sizeof(ut.ut_name));
  96 #ifdef HAVE_UT_PID
  97     ut.ut_pid = getpid();
  98 #endif
  99 #ifdef HAVE_UT_HOST
 100     strncpy(ut.ut_host, host, sizeof(ut.ut_host));
 101 #endif
 102     ut.ut_time = time(NULL);
 103
 104 #ifdef WTMPX_FILE
 105     strncpy(utx.ut_line, line, sizeof(utx.ut_line));
 106     strncpy(utx.ut_user, name, sizeof(utx.ut_user));
 107     strncpy(utx.ut_host, host, sizeof(utx.ut_host));
 108 #ifdef HAVE_UT_SYSLEN
 109     utx.ut_syslen = strlen(host) + 1;
 110     if (utx.ut_syslen > sizeof(utx.ut_host))
 111         utx.ut_syslen = sizeof(utx.ut_host);
 112 #endif
 113     gettimeofday (&tv, 0);
 114     utx.ut_tv.tv_sec = tv.tv_sec;
 115     utx.ut_tv.tv_usec = tv.tv_usec;
 116
 117     if(name[0])
 118         utx.ut_type = USER_PROCESS;
 119     else
 120         utx.ut_type = DEAD_PROCESS;
 121 #endif
 122
 123     if(!init){
 124         fd = open(WTMP_FILE, O_WRONLY|O_APPEND, 0);
 125 #ifdef WTMPX_FILE
 126         fdx = open(WTMPX_FILE, O_WRONLY|O_APPEND, 0);
 127 #endif
 128         init = 1;
 129     }
 130     if(fd >= 0) {
 131         write(fd, &ut, sizeof(struct utmp)); /* XXX */
 132 #ifdef WTMPX_FILE
 133         write(fdx, &utx, sizeof(struct utmpx));
 134 #endif
 135     }
 136 }