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/*
20140212
20241208 - reformated using clang-format
Jan Mojzis
Public domain.
The 'logsys' library is used to login recording
and logout recording in the system using
utmp/utmpx ...
Portability - HELL !!
*/
/*
tested on:
FreeBSD 9.2
OpenBSD 5.3
NetBSD 6.1.2
Linux Debian 7.0
SunOS 5.11
*/
#include <unistd.h>
#include <time.h>
#include <sys/time.h>
#include <paths.h>
#include <arpa/inet.h>
#include "hasutilh.h"
#ifdef HASUTILH
#include <util.h>
#endif
#include "hasutmpx.h"
#ifdef HASUTMPX
#include <utmpx.h>
#endif
#include "hasutmpxupdwtmpx.h"
#include "hasutmpxsyslen.h"
#include "hasutmpxaddrv6.h"
#include "hasutmp.h"
#ifdef HASUTMP
#include <utmp.h>
#endif
#include "hasutmpname.h"
#include "hasutmppid.h"
#include "hasutmptime.h"
#include "hasutmptv.h"
#include "hasutmptype.h"
#include "hasutmphost.h"
#include "hasutmpuser.h"
#include "hasutmplogwtmp.h"
#include "hasutmploginlogout.h"
#include "hasutmpaddrv6.h"
#include "str.h"
#include "byte.h"
#include "logsys.h"
static void logsys_utmpx(const char *user, const char *host, const char *name,
long long pid, int flaglogin) {
#ifdef HASUTMPX
struct timeval tv;
struct utmpx ut;
byte_zero(&ut, sizeof ut);
/* line */
if (!name) name = ttyname(0);
if (!name) return;
if (str_start(name, "/dev/")) name += 5;
str_copyn(ut.ut_line, sizeof ut.ut_line, name);
/* host */
if (flaglogin)
str_copyn(ut.ut_host, sizeof ut.ut_host, host);
else
byte_zero(ut.ut_host, sizeof ut.ut_host);
#ifdef HASUTMPXSYSLEN
ut.ut_syslen = str_len(ut.ut_host) + 1;
#endif
#ifdef HASUTMPXADDRV6
if (inet_pton(AF_INET6, ut.ut_host, &ut.ut_addr_v6) <= 0)
inet_pton(AF_INET, ut.ut_host, &ut.ut_addr_v6[0]);
#endif
/* user */
if (flaglogin)
str_copyn(ut.ut_user, sizeof ut.ut_user, user);
else
byte_zero(ut.ut_user, sizeof ut.ut_user);
gettimeofday(&tv, 0);
ut.ut_tv.tv_sec = tv.tv_sec;
ut.ut_tv.tv_usec = tv.tv_usec;
/* pid */
if (pid == 0) pid = getpid();
ut.ut_pid = pid;
/* type */
if (flaglogin)
ut.ut_type = USER_PROCESS;
else
ut.ut_type = DEAD_PROCESS;
/* update utmpx */
setutxent();
pututxline(&ut);
endutxent();
/* update wtmpx */
#ifdef HASUTMPXUPDWTMPX
#if defined(_PATH_WTMPX)
updwtmpx(_PATH_WTMPX, &ut);
#elif defined(WTMPX_FILE)
updwtmpx(WTMPX_FILE, &ut);
#endif
#endif
#else
(void) user;
(void) host;
(void) name;
(void) pid;
(void) flaglogin;
#endif
}
static void logsys_utmp(const char *user, const char *host, const char *name,
long long pid, int flaglogin) {
#ifdef HASUTMP
struct timeval tv;
struct utmp ut;
byte_zero(&ut, sizeof ut);
/* line */
if (!name) name = ttyname(0);
if (!name) return;
if (str_start(name, "/dev/")) name += 5;
str_copyn(ut.ut_line, sizeof ut.ut_line, name);
/* host */
#ifdef HASUTMPHOST
str_copyn(ut.ut_host, sizeof ut.ut_host, host);
#ifdef HASUTMPADDRV6
if (inet_pton(AF_INET6, ut.ut_host, &ut.ut_addr_v6) <= 0)
inet_pton(AF_INET, ut.ut_host, &ut.ut_addr_v6[0]);
#endif
#endif
/* user */
#ifdef HASUTMPNAME
str_copyn(ut.ut_name, sizeof ut.ut_name, user);
#endif
#ifdef HASUTMPUSER
str_copyn(ut.ut_user, sizeof ut.ut_user, user);
#endif
/* time */
gettimeofday(&tv, 0);
#ifdef HASUTMPTIME
ut.ut_time = tv.tv_sec;
#endif
#ifdef HASUTMPTV
ut.ut_tv.tv_sec = tv.tv_sec;
ut.ut_tv.tv_usec = tv.tv_usec;
#endif
/* pid */
#ifdef HASUTMPPID
if (pid == 0) pid = getpid();
ut.ut_pid = pid;
#else
(void) pid;
#endif
/* type */
#ifdef HASUTMPTYPE
if (flaglogin)
ut.ut_type = USER_PROCESS;
else
ut.ut_type = DEAD_PROCESS;
#endif
if (flaglogin) {
#ifdef HASUTMPLOGINLOGOUT
login(&ut);
#else
setutent();
pututline(&ut);
endutent();
#endif
}
else {
#ifdef HASUTMPLOGINLOGOUT
logout(ut.ut_line);
#else
setutent();
pututline(&ut);
endutent();
#endif
#if defined(HASUTMPLOGWTMP)
logwtmp(ut.ut_line, "", "");
#endif
}
#else
(void) user;
(void) host;
(void) name;
(void) pid;
(void) flaglogin;
#endif
}
void logsys_login(const char *user, const char *host, const char *name,
long long pid) {
logsys_utmp(user, host, name, pid, 1);
logsys_utmpx(user, host, name, pid, 1);
}
void logsys_logout(const char *user, const char *host, const char *name,
long long pid) {
logsys_utmp(user, host, name, pid, 0);
logsys_utmpx(user, host, name, pid, 0);
}
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