103 lines
2.7 KiB
C
103 lines
2.7 KiB
C
/**
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* xrdp: A Remote Desktop Protocol server.
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*
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* Copyright (C) Emmanuel Blindauer 2017
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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/**
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*
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* @file sessionrecord.c
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* @brief utmp/wtmp handling code
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*
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*/
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#if defined(HAVE_CONFIG_H)
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#include <config_ac.h>
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#endif
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#include <paths.h>
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#include <pwd.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <sys/time.h>
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#include <unistd.h>
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#include "log.h"
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#include "os_calls.h"
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#include "sessionrecord.h"
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/*
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* Prepare the utmp/ struct and write it.
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* this can handle login and logout at once with the 'state' parameter
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*/
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int
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add_xtmp_entry(int pid, const char *line, const char *user, const char *rhostname, short state)
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{
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_utmp ut;
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struct timeval tv;
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memset (&ut, 0, sizeof (ut));
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ut.ut_type=state;
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ut.ut_pid = pid;
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gettimeofday(&tv, NULL);
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ut.ut_tv.tv_sec = tv.tv_sec;
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ut.ut_tv.tv_usec = tv.tv_usec;
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strncpy(ut.ut_line, line , sizeof (ut.ut_line));
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strncpy(ut.ut_user, user , sizeof (ut.ut_user));
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strncpy(ut.ut_host, rhostname, sizeof (ut.ut_host));
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/* utmp */
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setutxent();
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pututxline(&ut);
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endutxent ();
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/* wtmp XXX hardcoded! UTMPX_FILE pb def*/
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#ifdef HAVE_UTMPX_H
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log_message(LOG_LEVEL_DEBUG, "HAVE_UTMPX_H");
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updwtmpx(_PATH_WTMP, &ut);
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#elif defined(HAVE_UTMP_H)
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log_message(LOG_LEVEL_DEBUG, "HAVE_UTMP_H");
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updwtmp("/var/log/wtmp", &ut);
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#endif
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return 0;
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}
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int
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utmp_login(int pid, int display, const char *user, const char *rhostname)
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{
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char str_display[16];
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log_message(LOG_LEVEL_DEBUG,
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"adding login info for utmp/wtmp: %d - %d - %s - %s",
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pid, display, user, rhostname);
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g_snprintf(str_display, 15, XRDP_LINE_FORMAT, display);
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return add_xtmp_entry(pid, str_display, user, rhostname, USER_PROCESS);
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}
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int
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utmp_logout(int pid, int display, const char *user, const char *rhostname)
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{
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char str_display[16];
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log_message(LOG_LEVEL_DEBUG,
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"adding logout info for utmp/wtmp: %d - %d - %s - %s",
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pid, display, user, rhostname);
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g_snprintf(str_display, 15, XRDP_LINE_FORMAT, display);
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return add_xtmp_entry(pid, str_display, user, rhostname, DEAD_PROCESS);
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}
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