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version 1.1.1.1.2.3, 2011/05/20 16:38:53	version 1.7, 2015/06/18 23:03:53
Line 5	Line 5
* $Author$	* $Author$
* $Id$	* $Id$
*	*
*************************************************************************/	*************************************************************************
	The ELWIX and AITNET software is distributed under the following
	terms:

	All of the documentation and software included in the ELWIX and AITNET
	Releases is copyrighted by ELWIX - Sofia/Bulgaria <info@elwix.org>

	Copyright 2004 - 2015
	by Michael Pounov <misho@elwix.org>. All rights reserved.

	Redistribution and use in source and binary forms, with or without
	modification, are permitted provided that the following conditions
	are met:
	1. Redistributions of source code must retain the above copyright
	notice, this list of conditions and the following disclaimer.
	2. Redistributions in binary form must reproduce the above copyright
	notice, this list of conditions and the following disclaimer in the
	documentation and/or other materials provided with the distribution.
	3. All advertising materials mentioning features or use of this software
	must display the following acknowledgement:
	This product includes software developed by Michael Pounov <misho@elwix.org>
	ELWIX - Embedded LightWeight unIX and its contributors.
	4. Neither the name of AITNET nor the names of its contributors
	may be used to endorse or promote products derived from this software
	without specific prior written permission.

	THIS SOFTWARE IS PROVIDED BY AITNET AND CONTRIBUTORS ``AS IS'' AND
	ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
	IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
	ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
	FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
	DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
	OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
	HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
	LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
	OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
	SUCH DAMAGE.
	*/
#include "global.h"	#include "global.h"


sl_config cfg;	cfg_root_t cfg;
int Verbose;	int Verbose;
struct tagProc proc;	struct tagProc proc;
FILE *lf;	FILE *lf;
Line 18 FILE *lf;	Line 55 FILE *lf;
static inline void	static inline void
Log(int lvl, const char *fmt, ...)	Log(int lvl, const char *fmt, ...)
{	{
va_list lst;	va_list lst, cp;

if (lvl <= Verbose) {	EVERBS(lvl) {
va_start(lst, fmt);	va_start(lst, fmt);
	va_copy(cp, lst);
vfprintf(lf, fmt, lst);	vfprintf(lf, fmt, lst);
fprintf(lf, "\n");
vsyslog(LOG_WARNING, fmt, lst);
va_end(lst);	va_end(lst);
	fprintf(lf, "\n");
	vsyslog(LOG_INFO, fmt, cp);
	va_end(cp);
}	}
}	}

static inline void	static inline void
Err(const char *fmt, ...)	Err(const char *fmt, ...)
{	{
va_list lst;	va_list lst, cp;

va_start(lst, fmt);	va_start(lst, fmt);
	va_copy(cp, lst);
vfprintf(lf, fmt, lst);	vfprintf(lf, fmt, lst);
fprintf(lf, "\n");
vsyslog(LOG_ERR, fmt, lst);
va_end(lst);	va_end(lst);
	fprintf(lf, "\n");
	vsyslog(LOG_ERR, fmt, cp);
	va_end(cp);
}	}

static void	static inline void
	DumpProc(const char *txt)
	{
	Log(1, "%s:: uid:gid=%d:%d UID:GID=%d:%d Prio=%d Class=%s Name=%s Dir=%s Cmd=%s "
	"Script=%s From=%s:%s Get=%s", txt ? txt : __func__,
	geteuid(), getegid(), AIT_GET_I16(&proc.proc_uid),
	AIT_GET_I16(&proc.proc_gid), AIT_GET_I32(&proc.proc_prio),
	AIT_GET_STR(&proc.proc_class), AIT_GET_STR(&proc.proc_name),
	AIT_GET_STR(&proc.proc_dir), AIT_GET_STR(&proc.proc_cmd),
	getenv("PATH_TRANSLATED"), getenv("REMOTE_ADDR"),
	getenv("REMOTE_PORT"), getenv("REQUEST_URI"));
	}

	static int
initProg()	initProg()
{	{
proc.proc_uid = getuid();	AIT_SET_I16(&proc.proc_uid, getuid());
proc.proc_gid = getgid();	AIT_SET_I16(&proc.proc_gid, getgid());
proc.proc_prio = getpriority(PRIO_PROCESS, 0);	AIT_SET_I32(&proc.proc_prio, getpriority(PRIO_PROCESS, 0));
getcwd(proc.proc_dir, sizeof proc.proc_dir);	AIT_INIT_VAL2(&proc.proc_class, string);
	AIT_INIT_VAL2(&proc.proc_dir, string);
	AIT_INIT_VAL2(&proc.proc_name, string);
	AIT_INIT_VAL2(&proc.proc_cmd, string);

	#if 0
lf = fopen(DEFAULT_LOG, "a");	lf = fopen(DEFAULT_LOG, "a");
if (!lf)	if (!lf)
	#endif
lf = stdout;	lf = stdout;

openlog(PACKAGE_NAME, LOG_CONS \| LOG_PID \| LOG_NDELAY \| LOG_PERROR, LOG_USER);	openlog(PACKAGE_NAME, LOG_CONS \| LOG_PID \| LOG_NDELAY, LOG_USER);
	return 0;
}	}

static void	static void
	endProg()
	{
	AIT_FREE_VAL(&proc.proc_uid);
	AIT_FREE_VAL(&proc.proc_gid);
	AIT_FREE_VAL(&proc.proc_prio);
	AIT_FREE_VAL(&proc.proc_class);
	AIT_FREE_VAL(&proc.proc_dir);
	AIT_FREE_VAL(&proc.proc_name);
	AIT_FREE_VAL(&proc.proc_cmd);
	}

	static void
Usage()	Usage()
{	{
printf( " -= suX =- suExecutor designed for web based applicaions\n"	printf( " -= suX =- suExecutor designed for web based applicaions\n"
"(C)`11 AITNET ltd - Sofia/Bulgaria - <office@aitnet.org>\n\n"	"(C)`11 AITNET ltd - Sofia/Bulgaria - <office@aitnet.org>\n\n"
" Syntax: %s [options] <program> [arguments]\n"	" Syntax: %s [options] <program\|-> [arguments]\n"
"\t-u <user>\t\t\tUser for suID\n"	"\t-u <user>\t\t\tUser for suID\n"
"\t-g <group>\t\t\tGroup for suID\n"	"\t-g <group>\t\t\tGroup for suID\n"
"\t-p <priority (-20..20)>\t\tExecute with priority\n"	"\t-p <priority (-20..20)>\t\tExecute with priority\n"
"\t-d <directory>\t\t\tDirectory for suID\n"	"\t-d <directory>\t\t\tDirectory for suID\n"
	"\t-C <directory>\t\t\tChroot to directory\n"
	"\t-c <cfgfile>\t\t\tConfig file\n"
"\t-l <logfile>\t\t\tLog file path (default:/var/log/suX.log)\n"	"\t-l <logfile>\t\t\tLog file path (default:/var/log/suX.log)\n"
	"\t-o\t\t\t\tForce set UID,GID and Priority for program\n"
"\t-v\t\t\t\tVerbose, (more -v, more verbosity)\n"	"\t-v\t\t\t\tVerbose, (more -v, more verbosity)\n"
"\t-h\t\t\t\tThis help screen!\n\n", PACKAGE_NAME);	"\t-h\t\t\t\tThis help screen!\n\n", PACKAGE_NAME);
}	}
Line 75 static inline int	Line 150 static inline int
setUIDGID(char flg, const char *name)	setUIDGID(char flg, const char *name)
{	{
struct stat sb;	struct stat sb;
	struct passwd *pass;
	short uid, gid;

if (stat(name, &sb) == -1) {	if (name) {
Err("Error:: %s stat #%d - %s", name, errno, strerror(errno));	if (stat(name, &sb) == -1) {
return -1;	ESYSERR(0);
	return -1;
	}
	uid = sb.st_uid;
	gid = sb.st_gid;
	} else {
	pass = getpwnam(getenv("SUX_USER") ? getenv("SUX_USER") : DEFAULT_SUX_USER);
	if (!pass) {
	Err("Error:: User %s not found", getenv("SUX_USER"));
	endpwent();
	return -1;
	}
	uid = pass->pw_uid;
	gid = pass->pw_gid;
	endpwent();
}	}

if (!(flg & 1))	if (!(flg & SUX_GET_UID))
proc.proc_uid = sb.st_uid;	AIT_SET_I16(&proc.proc_uid, uid);
if (!(flg & 2))	if (!(flg & SUX_GET_GID))
proc.proc_gid = sb.st_gid;	AIT_SET_I16(&proc.proc_gid, gid);

return 0;	return 0;
}	}

static inline int	static inline int
SetClass()	setClassDir()
{	{
login_cap_t *cap;
struct passwd *pass;	struct passwd *pass;
	int ret = 0;

pass = getpwuid(proc.proc_uid);	pass = getpwuid(AIT_GET_I16(&proc.proc_uid));
if (!pass) {	if (!pass) {
Err("Error:: User with this UID %d not found", proc.proc_uid);	Err("Error:: User with this UID %d not found", AIT_GET_I16(&proc.proc_uid));
endpwent();	ret = -1;
return -1;	} else {
} else	AIT_SET_STR(&proc.proc_class, pass->pw_class);
strlcpy(proc.proc_class, pass->pw_class, sizeof proc.proc_class);	AIT_SET_STR(&proc.proc_dir, pass->pw_dir);

cap = login_getclass(proc.proc_class);	if (setusercontext(NULL, pass, AIT_GET_I16(&proc.proc_uid),
if (!cap) {	LOGIN_SETLOGIN \| LOGIN_SETGROUP \| LOGIN_SETUSER \|
Err("Error:: Cant get login class %s", proc.proc_class);	LOGIN_SETPRIORITY \| LOGIN_SETRESOURCES)) {
endpwent();	Err("Error:: Can't set login class %s", AIT_GET_STR(&proc.proc_class));
return -1;	ret = -1;
	}
}	}

if (setusercontext(cap, pass, proc.proc_uid, LOGIN_SETALL)) {
Err("Error:: Cant set login class %s", proc.proc_class);
login_close(cap);
endpwent();
return -1;
}

login_close(cap);
endpwent();	endpwent();
return 0;	return ret;
}	}

static int	static int
LoadCfgData(char flg)	LoadCfgData(char flg)
{	{
char *str, mode = 0;	const char *str;
	char mode = 0;

str = (char*) cfg_GetAttribute(&cfg, CFG("global"), CFG("mode"));	str = cfg_getAttribute(&cfg, "global", "mode");
if (!str) {	if (!str) {
Err("Error:: Unknown mode ...");	Err("Error:: Unknown mode ...");
return -1;	return -1;
}	}
if (!strcasecmp(str, "SCRIPT")) {	if (!strcasecmp(str, "SCRIPT")) {
mode = 1;	mode = 1;
if (setUIDGID(flg, proc.proc_name) == -1)	if (setUIDGID(flg, (getenv("SUX_USER") ? NULL : getenv("PATH_TRANSLATED"))) == -1)
return -1;	return -1;
} else if (!strcasecmp(str, "FILE")) {	} else if (!strcasecmp(str, "FILE")) {
mode = 2;	mode = 2;
if (setUIDGID(flg, proc.proc_name) == -1)	if (setUIDGID(flg, AIT_GET_STR(&proc.proc_name)) == -1)
return -1;	return -1;
} else if (!strcasecmp(str, "DIR") &&	} else if (!strcasecmp(str, "DIR")) {
(str = (char*) cfg_GetAttribute(&cfg, CFG("global"), CFG("directory")))) {
mode = 3;	mode = 3;
if (!(flg & 8))	str = AIT_GET_STR(&proc.proc_dir) ? AIT_GET_STR(&proc.proc_dir) : ".";
strlcpy(proc.proc_dir, str, sizeof proc.proc_dir);	if (setUIDGID(flg, str) == -1)

if (setUIDGID(flg, proc.proc_dir) == -1)
return -1;	return -1;
} else {	} else {
Err("Error:: Unknown mode %s", str);	Err("Error:: Unknown mode %s", str);
return -1;	return -1;
}	}
if (!(flg & 4)) {	if (!(flg & SUX_GET_PRIO)) {
str = (char*) cfg_GetAttribute(&cfg, CFG("global"), CFG("priority"));	str = cfg_getAttribute(&cfg, "global", "priority");
if (str)	if (str)
proc.proc_prio = strtol(str, NULL, 10);	AIT_SET_I32(&proc.proc_prio, strtol(str, NULL, 10));
}	}

/* find associate extension */	/* find associate extension */
str = strrchr(proc.proc_name, '.');	str = strrchr(AIT_GET_STR(&proc.proc_name), '.');
if (str) {	if (str) {
str++;	str++;
str = (*str) ? str : "default";	str = (*str) ? str : "default";
switch (cfg_LoadAttribute(&cfg, CFG("associate"), CFG(str),	switch (cfg_loadAttribute(&cfg, "associate", str, &proc.proc_cmd, NULL)) {
CFG(proc.proc_cmd), sizeof proc.proc_cmd, NULL)) {
case -1:	case -1:
Err("Error:: can`t load attribute #%d - %s\n", cfg_GetErrno(), cfg_GetError());	ELIBERR(cfg);
return -1;	return -1;
case 0:	case 0:
cfg_LoadAttribute(&cfg, CFG("associate"), CFG("default"),	cfg_loadAttribute(&cfg, "associate", "default",
CFG(proc.proc_cmd), sizeof proc.proc_cmd, DEFAULT_CMD);	&proc.proc_cmd, DEFAULT_CMD);
}	}
} else	} else
strlcpy(proc.proc_cmd, DEFAULT_CMD, sizeof proc.proc_cmd);	AIT_SET_STR(&proc.proc_cmd, DEFAULT_CMD);

return 0;	return 0;
}	}

static int	static int
Run(char **argv)	Run(char **argv, char flg)
{	{
char *args, cmd;	char *args, cmd;
array_t acmd, aarg;	array_t acmd, aarg;
Line 188 Run(char **argv)	Line 269 Run(char **argv)
if (!argv)	if (!argv)
return -1;	return -1;

n = io_arrayMake(proc.proc_cmd, 0, " \t", &acmd);	n = array_Args(AIT_GET_STR(&proc.proc_cmd), 0, " \t", &acmd);
if (n < 1)	if (n < 1)
return -1;	return -1;
if (!(aarg = io_arrayFrom((const char**) argv, 0))) {	if (!(aarg = array_From((const char***) &argv, 0))) {
io_arrayDestroy(&acmd);	array_Destroy(&acmd);
return -1;	return -1;
} else if (io_arrayGet(acmd, 0, char) == '!') {	}
if (io_arrayGrow(acmd, 0)) {	/* '!' exclude associated wrapper aka direct args execution */
io_arrayDestroy(&aarg);	if (array(acmd, 0, char) == '!') {
io_arrayDestroy(&acmd);	if (array_Grow(acmd, 0, 0)) {
	array_Destroy(&aarg);
	array_Destroy(&acmd);
return -1;	return -1;
}	}
cmd = io_arrayGet(aarg, 0, char*);	cmd = array(aarg, 0, char*);
} else	} else
cmd = io_arrayGet(acmd, 0, char*);	cmd = array(acmd, 0, char*);

if (io_arrayConcat(acmd, aarg) == -1) {	if (!(flg & SUX_GET_STDIN) && array_Concat(acmd, aarg) == -1) {
io_arrayDestroy(&aarg);	array_Destroy(&aarg);
io_arrayDestroy(&acmd);	array_Destroy(&acmd);
return -1;	return -1;
}	}
io_arrayDestroy(&aarg);	array_Destroy(&aarg);
if (!(args = io_arrayTo(acmd))) {	if (!(args = array_To(acmd))) {
io_arrayDestroy(&acmd);	array_Destroy(&acmd);
return -1;	return -1;
}	}
io_arrayDestroy(&acmd);	array_Destroy(&acmd);

if (SetClass()) {	if (setClassDir()) {
if (args)	if (args)
free(args);	e_free(args);
return -1;	return -1;
}	}

if (setgid(proc.proc_gid) == -1) {	if (flg & SUX_GET_FORCE) {
Err("Error:: setgid #%d - %s\n", errno, strerror(errno));	if (setegid(AIT_GET_I16(&proc.proc_gid)) == -1)
if (args)	goto err;
free(args);	if (seteuid(AIT_GET_I16(&proc.proc_uid)) == -1)
return -1;	goto err;
	if (setpriority(PRIO_PROCESS, 0, AIT_GET_I32(&proc.proc_prio)) == -1)
	goto err;
}	}
if (setuid(proc.proc_uid) == -1) {
Err("Error:: setuid #%d - %s\n", errno, strerror(errno));
if (args)
free(args);
return -1;
}
if (setpriority(PRIO_PROCESS, 0, proc.proc_prio) == -1) {
Err("Error:: setpriority #%d - %s\n", errno, strerror(errno));
if (args)
free(args);
return -1;
}

Log(1, "UID:GID=%d:%d Prio=%d Class=%s Name=%s Dir=%s Cmd=%s\n", proc.proc_uid, proc.proc_gid,	EVERBS(3) {
proc.proc_prio, proc.proc_class, proc.proc_name, proc.proc_dir, proc.proc_cmd);

if (3 <= Verbose) {
char **el = args - 1;	char **el = args - 1;
while (*++el)	while (*++el)
Log(3, "args: %s", *el);	Log(3, "args: %s", *el);
}	}

	DumpProc(__func__);

	fflush(lf);

execve(cmd, args, environ);	execve(cmd, args, environ);
	err:
	ESYSERR(0);
if (args)	if (args)
free(args);	e_free(args);
Err("Error:: in exec() #%d - %s", errno, strerror(errno));
return -1;	return -1;
}	}

Line 261 Run(char **argv)	Line 336 Run(char **argv)
int	int
main(int argc, char **argv)	main(int argc, char **argv)
{	{
char ch, *str, szCfg[MAXPATHLEN], flg = 0;	char ch, str, wrk, szCfg[MAXPATHLEN], **pp, flg = 0;
struct passwd *pass;	struct passwd *pass;
struct group *grp;	struct group *grp;
FILE *f;	FILE *f;
Line 269 main(int argc, char **argv)	Line 344 main(int argc, char **argv)
initProg();	initProg();
strlcpy(szCfg, DEFAULT_CONFIG, sizeof szCfg);	strlcpy(szCfg, DEFAULT_CONFIG, sizeof szCfg);

while ((ch = getopt(argc, argv, "hvc:u:g:p:d:l:")) != -1)	while ((ch = getopt(argc, argv, "hvoC:c:u:g:p:d:l:")) != -1)
switch (ch) {	switch (ch) {
case 'l':	case 'l':
f = fopen(optarg, "a");	f = fopen(optarg, "a");
Line 282 main(int argc, char **argv)	Line 357 main(int argc, char **argv)
lf = f;	lf = f;
break;	break;
case 'd':	case 'd':
strlcpy(proc.proc_dir, optarg, sizeof proc.proc_dir);	AIT_SET_STR(&proc.proc_dir, optarg);
flg \|= 8;	flg \|= SUX_GET_DIR;
break;	break;
case 'p':	case 'p':
proc.proc_prio = strtol(optarg, NULL, 0);	AIT_SET_I32(&proc.proc_prio, strtol(optarg, NULL, 0));
flg \|= 4;	flg \|= SUX_GET_PRIO;
break;	break;
case 'g':	case 'g':
setgrent();	setgrent();
grp = getgrnam(optarg);	grp = getgrnam(optarg);
if (grp) {	if (grp) {
proc.proc_gid = grp->gr_gid;	AIT_SET_I16(&proc.proc_gid, grp->gr_gid);
flg \|= 2;	flg \|= SUX_GET_GID;
} else	} else
Err("Error:: Group not found!");	Err("Error:: Group not found!");
endgrent();	endgrent();
Line 303 main(int argc, char **argv)	Line 378 main(int argc, char **argv)
setpwent();	setpwent();
pass = getpwnam(optarg);	pass = getpwnam(optarg);
if (pass) {	if (pass) {
proc.proc_uid = pass->pw_uid;	AIT_SET_I16(&proc.proc_uid, pass->pw_uid);
flg \|= 1;	flg \|= SUX_GET_UID;
} else	} else
Err("Error:: User not found!");	Err("Error:: User not found!");
endpwent();	endpwent();
Line 312 main(int argc, char **argv)	Line 387 main(int argc, char **argv)
case 'c':	case 'c':
strlcpy(szCfg, optarg, sizeof szCfg);	strlcpy(szCfg, optarg, sizeof szCfg);
break;	break;
	case 'C':
	if (chroot(optarg) == -1)
	Err("Error:: chroot to dir");
	if ((str = getenv("PATH_TRANSLATED")))
	if ((wrk = strstr(str, optarg)))
	setenv("PATH_TRANSLATED", str + strlen(optarg), 42);
	break;
	case 'o':
	flg \|= SUX_GET_FORCE;
	break;
case 'v':	case 'v':
Verbose++;	e_incVerbose;
break;	break;
case 'h':	case 'h':
default:	default:
Usage();	Usage();
	endProg();
if (fileno(lf) > 2)	if (fileno(lf) > 2)
fclose(lf);	fclose(lf);
return 1;	return 1;
}	}
argc -= optind;	argc -= optind;
argv += optind;	argv += optind;

	EVERBS(2) {
	for (pp = argv; *pp; pp++)
	Log(2, "Args=%s\n", *pp);
	for (pp = environ; *pp; pp++)
	Log(2, "Envs=%s\n", *pp);
	}

if (!argc) {	if (!argc) {
if (!(str = getenv("PATH_TRANSLATED"))) {	if (!(str = getenv("PATH_TRANSLATED"))) {
Usage();	Usage();
	endProg();
if (fileno(lf) > 2)	if (fileno(lf) > 2)
fclose(lf);	fclose(lf);
return 1;	return 1;
} else	} else
strlcpy(proc.proc_name, str, sizeof proc.proc_name);	AIT_SET_STR(&proc.proc_name, str);
} else	} else if (strcmp(*argv, "-"))
strlcpy(proc.proc_name, *argv, sizeof proc.proc_name);	AIT_SET_STR(&proc.proc_name, *argv);
	else {
	flg \|= SUX_GET_STDIN;
	AIT_SET_STR(&proc.proc_name, "-.stdin"); /* hack for associate to stdin */
	}
Log(2, "Try to load config %s", szCfg);	Log(2, "Try to load config %s", szCfg);
if (LoadConfig(szCfg, &cfg)) {	if (cfgLoadConfig(szCfg, &cfg)) {
Err("Error:: can`t load config #%d - %s\n", cfg_GetErrno(), cfg_GetError());	ELIBERR(cfg);
	endProg();
if (fileno(lf) > 2)	if (fileno(lf) > 2)
fclose(lf);	fclose(lf);
return 2;	return 2;
} else	} else
if (LoadCfgData(flg) == -1) {	if (LoadCfgData(flg) == -1) {
UnloadConfig(&cfg);	cfgUnloadConfig(&cfg);
	endProg();
if (fileno(lf) > 2)	if (fileno(lf) > 2)
fclose(lf);	fclose(lf);
closelog();	closelog();
return 3;	return 3;
}	}
UnloadConfig(&cfg);	cfgUnloadConfig(&cfg);

if (Run(argv) == -1) {	if (Run(argv, flg) == -1) {
	endProg();
if (fileno(lf) > 2)	if (fileno(lf) > 2)
fclose(lf);	fclose(lf);
closelog();	closelog();
return 4;	return 4;
}	}

	endProg();
if (fileno(lf) > 2)	if (fileno(lf) > 2)
fclose(lf);	fclose(lf);
closelog();	closelog();

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Removed from v.1.1.1.1.2.3
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	Added in v.1.7