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source: trunk/src/sh_calls.c@ 502

Last change on this file since 502 was 481, checked in by katerina, 9 years ago
Enhancements and fixes for tickets #374, #375, #376, #377, #378, and #379.
File size: 23.4 KB

Rev	Line
[1]	1	/* SAMHAIN file system integrity testing */
	2	/* Copyright (C) 1999 Rainer Wichmann */
	3	/* */
	4	/* This program is free software; you can redistribute it */
	5	/* and/or modify */
	6	/* it under the terms of the GNU General Public License as */
	7	/* published by */
	8	/* the Free Software Foundation; either version 2 of the License, or */
	9	/* (at your option) any later version. */
	10	/* */
	11	/* This program is distributed in the hope that it will be useful, */
	12	/* but WITHOUT ANY WARRANTY; without even the implied warranty of */
	13	/* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the */
	14	/* GNU General Public License for more details. */
	15	/* */
	16	/* You should have received a copy of the GNU General Public License */
	17	/* along with this program; if not, write to the Free Software */
	18	/* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */
	19
	20	#include "config_xor.h"
	21
	22	#ifdef HOST_IS_HPUX
	23	#define _XOPEN_SOURCE_EXTENDED
	24	#endif
	25
	26	#include <stdlib.h>
	27	#include <string.h>
	28	#include <errno.h>
	29
	30	#include <sys/types.h>
	31	#include <unistd.h>
	32	#include <sys/stat.h>
	33	#include <fcntl.h>
	34	#include <signal.h>
	35	#include <sys/socket.h>
[361]	36	#include <netdb.h>
[1]	37	#include <netinet/in.h>
	38
	39	#ifndef S_SPLINT_S
	40	#include <arpa/inet.h>
	41	#else
	42	#define AF_INET 2
	43	#endif
	44
	45	#include <time.h>
	46
	47	#ifndef HAVE_LSTAT
	48	#define lstat stat
	49	#endif
	50
	51	#include "samhain.h"
	52	#include "sh_error.h"
	53	#include "sh_calls.h"
[295]	54	#include "sh_ipvx.h"
[315]	55	#include "sh_sub.h"
	56	#include "sh_utils.h"
[1]	57
	58	#undef FIL__
	59	#define FIL__ _("sh_calls.c")
	60
[361]	61	extern int flag_err_debug;
	62
[1]	63	char aud_err_message[64];
	64
	65	typedef struct cht_struct
	66	{
[170]	67	const char * str;
[1]	68	unsigned long val;
	69	} cht_type;
	70
	71	static cht_type aud_tab[] =
	72	{
	73	{ N_("execve"), AUD_EXEC },
	74	{ N_("utime"), AUD_UTIME },
	75	{ N_("unlink"), AUD_UNLINK },
	76	{ N_("dup"), AUD_DUP },
	77	{ N_("chdir"), AUD_CHDIR },
	78	{ N_("open"), AUD_OPEN },
	79	{ N_("kill"), AUD_KILL },
	80	{ N_("exit"), AUD_EXIT },
	81	{ N_("fork"), AUD_FORK },
	82	{ N_("setuid"), AUD_SETUID },
	83	{ N_("setgid"), AUD_SETGID },
	84	{ N_("pipe"), AUD_PIPE },
	85	{ NULL, 0 }
	86	};
	87
	88	/* Set aud functions
	89	*/
[22]	90	int sh_aud_set_functions(const char * str_s)
[1]	91	{
	92	int i = 0;
	93
	94	SL_ENTER(_("sh_aud_set_functions"));
	95
	96	if (str_s == NULL)
	97	return -1;
	98
	99	while (aud_tab[i].str != NULL)
	100	{
	101	if (NULL != sl_strstr (str_s, _(aud_tab[i].str)))
	102	{
	103	sh.flag.audit = 1;
	104	sh.flag.aud_mask \|= aud_tab[i].val;
	105	}
	106	++i;
	107	}
	108
	109	SL_RETURN(0,_("sh_aud_set_functions"));
	110	}
	111
	112
	113
	114
	115	/* Need to catch EINTR for these functions.
	116	*/
[170]	117	long int retry_sigaction(const char * file, int line,
[1]	118	int signum, const struct sigaction *act,
	119	struct sigaction *oldact)
	120	{
	121	int error;
	122	long int val_retry = -1;
[132]	123	char errbuf[SH_ERRBUF_SIZE];
[1]	124	errno = 0;
	125
	126	SL_ENTER(_("retry_sigaction"));
	127
	128	do {
	129	val_retry = sigaction(signum, act, oldact);
	130	} while (val_retry < 0 && errno == EINTR);
	131
	132	error = errno;
	133	if (val_retry < 0) {
	134	sh_error_handle ((-1), file, line, error, MSG_ERR_SIGACT,
[132]	135	sh_error_message(error, errbuf, sizeof(errbuf)),
[1]	136	(long) signum );
	137	}
	138	errno = error;
	139	SL_RETURN(val_retry, _("retry_sigaction"));
	140	}
	141
[295]	142	static struct sh_sockaddr bind_addr;
[1]	143	static int use_bind_addr = 0;
	144
[20]	145	int sh_calls_set_bind_addr (const char * str)
[1]	146	{
[3]	147	static int reject = 0;
	148
	149	if (reject == 1)
	150	return (0);
	151
	152	if (sh.flag.opts == S_TRUE)
	153	reject = 1;
	154
[295]	155	if (0 == sh_ipvx_aton(str, &bind_addr))
	156	return -1;
	157
[1]	158	use_bind_addr = 1;
	159	return 0;
	160	}
	161
	162
[170]	163	long int retry_connect(const char * file, int line, int sockfd,
[1]	164	struct sockaddr *serv_addr, int addrlen)
	165	{
	166	int error;
[472]	167	int err_bind = 0;
[1]	168	long int val_retry = 0;
[132]	169	char errbuf[SH_ERRBUF_SIZE];
[1]	170
	171	SL_ENTER(_("retry_connect"));
	172
	173	errno = 0;
	174
[472]	175	if (use_bind_addr)
[1]	176	{
[295]	177	int slen = SH_SS_LEN(bind_addr);
[472]	178	struct sockaddr *b_addr = sh_ipvx_sockaddr_cast(&bind_addr);
[295]	179
[472]	180	if (bind_addr.ss_family == AF_INET)
	181	b_addr->sa_family = AF_INET;
	182	#if defined(USE_IPVX)
	183	else
	184	b_addr->sa_family = AF_INET6;
	185	#endif
	186	val_retry = bind(sockfd, b_addr, slen);
[1]	187	}
	188
	189	if (val_retry == 0)
	190	{
	191	do {
[295]	192	val_retry = connect(sockfd, serv_addr, addrlen);
[171]	193	} while (val_retry < 0 && (errno == EINTR \|\| errno == EINPROGRESS));
[1]	194	}
[472]	195	else
	196	{
	197	err_bind = 1;
	198	}
[1]	199
	200	error = errno;
	201	if (val_retry != 0) {
[473]	202	long eport = 0;
[295]	203	char eaddr[SH_IP_BUF];
[472]	204	char emesg[SH_BUFSIZE];
	205	struct sockaddr *err_addr = serv_addr;
	206	struct sh_sockaddr ss;
[295]	207
[472]	208	if (err_bind)
	209	err_addr = sh_ipvx_sockaddr_cast(&bind_addr);
	210
	211	sh_ipvx_save(&ss, err_addr->sa_family, err_addr);
[295]	212	sh_ipvx_ntoa(eaddr, sizeof(eaddr), &ss);
	213
[472]	214	if (err_addr->sa_family == AF_INET)
[295]	215	eport = (long) ntohs(((struct sockaddr_in *)serv_addr)->sin_port);
[472]	216	#if defined(USE_IPVX)
[295]	217	else
	218	eport = (long) ntohs(((struct sockaddr_in6 *)serv_addr)->sin6_port);
[472]	219	#endif
[295]	220
[472]	221	sl_strlcpy(emesg, sh_error_message(error, errbuf, sizeof(errbuf)), sizeof(emesg));
	222	sl_strlcat(emesg,
	223	(err_addr->sa_family == AF_INET) ? _(", AF_INET") : _(", AF_INET6"),
	224	sizeof(emesg));
	225
	226	sl_strlcat(emesg,
	227	(err_bind) ? _(", bind") : _(", connect"),
	228	sizeof(emesg));
	229
	230	sh_error_handle ((-1), file, line, error, MSG_ERR_CONNECT,
	231	emesg,
[295]	232	(long) sockfd, eport, eaddr);
[1]	233	}
	234	errno = error;
	235	SL_RETURN(val_retry, _("retry_connect"));
	236	}
	237
[170]	238	long int retry_accept(const char * file, int line, int fd,
[295]	239	struct sh_sockaddr serv_addr, int addrlen)
[1]	240	{
	241	int error;
	242	long int val_retry = -1;
[132]	243	char errbuf[SH_ERRBUF_SIZE];
[295]	244	struct sockaddr_storage ss;
[132]	245
[295]	246	ACCEPT_TYPE_ARG3 my_addrlen = sizeof(ss);
[1]	247
	248	errno = 0;
	249
	250	SL_ENTER(_("retry_accept"));
	251
	252	do {
[295]	253	val_retry = accept(fd, (struct sockaddr *)&ss, &my_addrlen);
[1]	254	} while (val_retry < 0 && errno == EINTR);
[295]	255
[1]	256	error = errno;
	257	if (val_retry < 0) {
	258	sh_error_handle ((-1), file, line, error, MSG_ERR_ACCEPT,
[132]	259	sh_error_message(error, errbuf, sizeof(errbuf)),
[1]	260	(long) fd );
	261	}
[295]	262	errno = error;
	263
[481]	264	if (flag_err_debug == S_TRUE)
[361]	265	{
	266	char ipbuf[SH_IP_BUF];
	267	char buf[SH_BUFSIZE];
	268	#if defined(USE_IPVX)
	269	sl_strlcpy(errbuf, _("Address family: "), sizeof(errbuf));
	270	sl_strlcat(errbuf,
	271	(ss.ss_family == AF_INET6) ? _("AF_INET6") : _("AF_INET"),
	272	sizeof(errbuf));
	273	getnameinfo((struct sockaddr *)&ss, my_addrlen,
	274	ipbuf, sizeof(ipbuf), NULL, 0, NI_NUMERICHOST);
	275	#else
	276	struct sockaddr_in sa;
	277	char * p;
	278	memcpy(&(sa), (struct sockaddr_in*)&ss, sizeof(struct sockaddr_in));
	279	p = inet_ntoa(sa.sin_addr);
	280	sl_strlcpy(ipbuf, p, sizeof(ipbuf));
	281	sl_strlcpy(errbuf, _("Address family: AF_INET"), sizeof(errbuf));
	282	#endif
	283	sl_strlcpy(buf, _("Address: "), sizeof(buf));
	284	sl_strlcat(buf, ipbuf, sizeof(buf));
	285	sh_error_handle (SH_ERR_ALL, FIL__, __LINE__, 0, MSG_E_SUBGEN,
	286	errbuf, _("retry_accept"));
	287	sh_error_handle (SH_ERR_ALL, FIL__, __LINE__, 0, MSG_E_SUBGEN,
	288	buf, _("retry_accept"));
	289	}
	290
[295]	291	sh_ipvx_save(serv_addr, ss.ss_family, (struct sockaddr *) &ss);
	292
[481]	293	if (flag_err_debug == S_TRUE)
[361]	294	{
	295	char ipbuf[SH_IP_BUF];
	296	char ipbuf2[SH_IP_BUF];
	297	char buf[SH_BUFSIZE];
	298	#if defined(USE_IPVX)
	299	int len = (serv_addr->ss_family == AF_INET) ?
	300	sizeof(struct sockaddr_in) :
	301	sizeof(struct sockaddr_in6);
	302	getnameinfo(sh_ipvx_sockaddr_cast(serv_addr), len,
	303	ipbuf2, sizeof(ipbuf2), NULL, 0, NI_NUMERICHOST);
	304	#else
	305	char * p = inet_ntoa((serv_addr->sin).sin_addr);
	306	sl_strlcpy(ipbuf2, p, sizeof(ipbuf2));
	307	#endif
	308	sh_ipvx_ntoa (ipbuf, sizeof(ipbuf), serv_addr);
	309	sl_snprintf(buf, sizeof(buf), _("Address: %s / %s"),
	310	ipbuf, ipbuf2);
	311	sh_error_handle (SH_ERR_ALL, FIL__, __LINE__, 0, MSG_E_SUBGEN,
	312	buf, _("retry_accept"));
	313	}
	314
[307]	315	*addrlen = (int) my_addrlen;
[1]	316	SL_RETURN(val_retry, _("retry_accept"));
	317	}
	318
[317]	319	static int sh_enable_use_sub = 0;
	320
	321	#if defined (SH_WITH_CLIENT) \|\| defined (SH_STANDALONE)
	322	static int sh_use_sub = 1;
	323	#else
[315]	324	static int sh_use_sub = 0;
[317]	325	#endif
[315]	326
[317]	327	void sh_calls_enable_sub()
	328	{
	329	sh_enable_use_sub = 1;
	330	return;
	331	}
	332
[315]	333	int sh_calls_set_sub (const char * str)
	334	{
[317]	335	int ret = sh_util_flagval(str, &sh_use_sub);
	336
	337	if ((ret == 0) && (!sh_use_sub))
	338	{
	339	sh_kill_sub();
	340	}
	341	return ret;
[315]	342	}
	343
[317]	344	long int retry_lstat_ns(const char * file, int line,
	345	const char file_name, struct stat buf)
	346	{
	347	int error;
	348	long int val_retry = -1;
	349	char errbuf[SH_ERRBUF_SIZE];
	350
	351	SL_ENTER(_("retry_lstat_ns"));
	352
	353	do {
	354	val_retry = /@-unrecog@/lstat (file_name, buf)/@+unrecog@/;
	355	} while (val_retry < 0 && errno == EINTR);
	356
	357	error = errno;
	358	if (val_retry < 0) {
	359	(void) sh_error_message(error, aud_err_message, 64);
	360	sh_error_handle ((-1), file, line, error, MSG_ERR_LSTAT,
	361	sh_error_message(error, errbuf, sizeof(errbuf)),
	362	file_name );
	363	}
	364	errno = error;
	365
	366	SL_RETURN(val_retry, _("retry_lstat_ns"));
	367	}
	368
[170]	369	long int retry_lstat(const char * file, int line,
[1]	370	const char file_name, struct stat buf)
	371	{
	372	int error;
	373	long int val_retry = -1;
[132]	374	char errbuf[SH_ERRBUF_SIZE];
[1]	375
	376	SL_ENTER(_("retry_lstat"));
	377
[317]	378	if (sh_use_sub && sh_enable_use_sub)
[315]	379	{
	380	val_retry = sh_sub_lstat (file_name, buf);
	381	}
	382	else
	383	{
	384	do {
	385	val_retry = /@-unrecog@/lstat (file_name, buf)/@+unrecog@/;
	386	} while (val_retry < 0 && errno == EINTR);
	387	}
	388
[1]	389	error = errno;
	390	if (val_retry < 0) {
[134]	391	(void) sh_error_message(error, aud_err_message, 64);
[1]	392	sh_error_handle ((-1), file, line, error, MSG_ERR_LSTAT,
[132]	393	sh_error_message(error, errbuf, sizeof(errbuf)),
[1]	394	file_name );
	395	}
	396	errno = error;
[315]	397
[1]	398	SL_RETURN(val_retry, _("retry_lstat"));
	399	}
	400
[170]	401	long int retry_stat(const char * file, int line,
[1]	402	const char file_name, struct stat buf)
	403	{
	404	int error;
	405	long int val_retry = -1;
[132]	406	char errbuf[SH_ERRBUF_SIZE];
[1]	407
	408	SL_ENTER(_("retry_stat"));
	409
[317]	410	if (sh_use_sub && sh_enable_use_sub)
[315]	411	{
	412	val_retry = sh_sub_stat (file_name, buf);
	413	}
	414	else
	415	{
	416	do {
	417	val_retry = stat (file_name, buf);
	418	} while (val_retry < 0 && errno == EINTR);
	419	}
	420
[1]	421	error = errno;
	422	if (val_retry < 0) {
[134]	423	(void) sh_error_message(error, aud_err_message, 64);
[1]	424	sh_error_handle ((-1), file, line, error, MSG_ERR_STAT,
[132]	425	sh_error_message(error, errbuf, sizeof(errbuf)),
[1]	426	file_name );
	427	}
	428	errno = error;
[315]	429
[1]	430	SL_RETURN(val_retry, _("retry_stat"));
	431	}
	432
[170]	433	long int retry_fstat(const char * file, int line, int filed, struct stat *buf)
[1]	434	{
	435	int error;
	436	long int val_retry = -1;
[132]	437	char errbuf[SH_ERRBUF_SIZE];
[1]	438
	439	SL_ENTER(_("retry_fstat"));
	440
	441	do {
	442	val_retry = fstat (filed, buf);
	443	} while (val_retry < 0 && errno == EINTR);
	444	error = errno;
	445	if (val_retry < 0) {
	446	sh_error_handle ((-1), file, line, error, MSG_ERR_FSTAT,
[132]	447	sh_error_message(error, errbuf, sizeof(errbuf)),
[1]	448	(long) filed );
	449	}
	450	errno = error;
	451	SL_RETURN(val_retry, _("retry_fstat"));
	452	}
	453
[170]	454	long int retry_fcntl(const char * file, int line, int fd, int cmd, long arg)
[1]	455	{
	456	int error;
	457	long int val_retry = -1;
[132]	458	char errbuf[SH_ERRBUF_SIZE];
[1]	459	errno = 0;
	460
	461	SL_ENTER(_("retry_fcntl"));
	462
	463	if (cmd == F_GETFD \|\| cmd == F_GETFL)
	464	{
	465	do {
	466	val_retry = fcntl(fd, cmd);
	467	} while (val_retry < 0 && errno == EINTR);
	468	}
	469	else
	470	{
	471	do {
	472	val_retry = fcntl(fd, cmd, arg);
	473	} while (val_retry < 0 && errno == EINTR);
	474	}
	475	error = errno;
	476	if (val_retry < 0) {
	477	sh_error_handle ((-1), file, line, error, MSG_ERR_FCNTL,
[132]	478	sh_error_message(error, errbuf, sizeof(errbuf)),
[1]	479	(long) fd, (long) cmd, arg );
	480	}
	481	errno = error;
	482	SL_RETURN(val_retry, _("retry_fcntl"));
	483	}
	484
	485	long int retry_msleep (int sec, int millisec)
	486	{
	487	int result = 0;
	488	#if defined(HAVE_NANOSLEEP)
	489	struct timespec req, rem;
	490	#endif
	491
	492	errno = 0;
	493	if (millisec > 999) millisec = 999;
	494	if (millisec < 0) millisec = 0;
	495	if (sec < 0) sec = 0;
	496
	497	#if defined(HAVE_NANOSLEEP)
	498	/@-usedef@/
	499	req.tv_sec = sec; rem.tv_sec = 0;
	500	req.tv_nsec = millisec * 1000000; rem.tv_nsec = 0;
	501	/@+usedef@/
	502	do {
	503	result = /@-unrecog@/nanosleep(&req, &rem)/@+unrecog@/;
	504
	505	req.tv_sec = rem.tv_sec; rem.tv_sec = 0;
	506	req.tv_nsec = rem.tv_nsec; rem.tv_nsec = 0;
	507
	508	} while ((result == -1) && (errno == EINTR));
	509	#else
	510	if (sec > 0)
[481]	511	sleep (sec); /* nanosleep not available */
	512	else {
[1]	513	#ifdef HAVE_USLEEP
[481]	514	if (millisec > 0)
	515	usleep(1000 * millisec);
[1]	516	#else
[481]	517	if (millisec > 0)
	518	sleep (1);
[1]	519	#endif
[481]	520	}
[1]	521	#endif
[481]	522	return result;
[1]	523	}
	524
	525	/***************************************************
	526	*
	527	* Audit these functions.
	528	*
	529	***************************************************/
	530
[170]	531	long int retry_aud_execve (const char * file, int line,
[1]	532	const char dateiname, char argv[],
	533	char * envp[])
	534	{
	535	uid_t a = geteuid();
	536	gid_t b = getegid();
	537	int i;
	538	int error;
[132]	539	char errbuf[SH_ERRBUF_SIZE];
[1]	540
	541	SL_ENTER(_("retry_aud_execve"));
	542
	543	if (sh.flag.audit != 0 && (sh.flag.aud_mask & AUD_EXEC) != 0)
	544	sh_error_handle ((-1), file, line, 0, MSG_AUD_EXEC,
	545	dateiname, (long) a, (long) b );
	546	do {
	547	i = execve(dateiname, argv, envp);
	548	} while (i < 0 && errno == EINTR);
	549
	550	error = errno;
	551	if (i < 0) {
[132]	552	sh_error_handle ((-1), file, line, error, MSG_ERR_EXEC,
	553	sh_error_message(error, errbuf, sizeof(errbuf)),
[1]	554	dateiname, (long) a, (long) b );
	555	}
	556	errno = error;
	557	SL_RETURN(i, _("retry_aud_execve"));
	558	}
	559
	560
[170]	561	long int retry_aud_utime (const char * file, int line,
	562	char * path, struct utimbuf *buf)
[1]	563	{
	564	long int val_return;
	565	int error;
[132]	566	char errbuf[SH_ERRBUF_SIZE];
[1]	567	errno = 0;
	568
	569	SL_ENTER(_("retry_aud_utime"));
	570
	571	do {
	572	val_return = utime (path, buf);
	573	} while (val_return < 0 && errno == EINTR);
	574
	575	error = errno;
	576	if (sh.flag.audit != 0 && (sh.flag.aud_mask & AUD_UTIME) != 0)
	577	sh_error_handle ((-1), file, line, 0, MSG_AUD_UTIME,
	578	path,
	579	(unsigned long) buf->actime,
	580	(unsigned long) buf->modtime);
	581	if (val_return < 0) {
	582	sh_error_handle ((-1), file, line, error, MSG_ERR_UTIME,
[132]	583	sh_error_message(error, errbuf, sizeof(errbuf)),
[1]	584	path,
	585	(unsigned long) buf->actime,
	586	(unsigned long) buf->modtime);
	587	}
	588	errno = error;
	589	SL_RETURN(val_return, _("retry_aud_utime"));
	590	}
	591
[170]	592	long int retry_aud_unlink (const char * file, int line,
[1]	593	char * path)
	594	{
	595	long int val_return;
	596	int error;
[132]	597	char errbuf[SH_ERRBUF_SIZE];
[1]	598	errno = 0;
	599
	600	SL_ENTER(_("retry_aud_unlink"));
	601
	602	do {
	603	val_return = unlink (path);
	604	} while (val_return < 0 && errno == EINTR);
	605
	606	error = errno;
	607	if (sh.flag.audit != 0 && (sh.flag.aud_mask & AUD_UNLINK) != 0)
	608	sh_error_handle ((-1), file, line, 0, MSG_AUD_UNLINK,
	609	path);
	610	if (val_return < 0) {
[132]	611	sh_error_handle ((-1), file, line, error, MSG_ERR_UNLINK,
	612	sh_error_message(error, errbuf, sizeof(errbuf)),
[1]	613	path);
	614	}
	615	errno = error;
	616	SL_RETURN(val_return, _("retry_aud_unlink"));
	617	}
	618
[170]	619	long int retry_aud_dup2 (const char * file, int line,
[1]	620	int fd, int fd2)
	621	{
	622	long int val_return;
	623	int error;
[132]	624	char errbuf[SH_ERRBUF_SIZE];
[1]	625	errno = 0;
	626
	627	SL_ENTER(_("retry_aud_dup2"));
	628
	629	do {
	630	val_return = dup2 (fd, fd2);
	631	} while (val_return < 0 && errno == EINTR);
	632
	633	error = errno;
	634	if (sh.flag.audit != 0 && (sh.flag.aud_mask & AUD_DUP) != 0)
	635	sh_error_handle ((-1), file, line, 0, MSG_AUD_DUP,
	636	(long) fd, val_return);
	637	if (val_return < 0) {
	638	sh_error_handle ((-1), file, line, error, MSG_ERR_DUP,
[132]	639	sh_error_message(error, errbuf, sizeof(errbuf)),
[1]	640	(long) fd, val_return);
	641	}
	642	errno = error;
	643	SL_RETURN(val_return, _("retry_aud_dup2"));
	644	}
	645
[170]	646	long int retry_aud_dup (const char * file, int line,
[1]	647	int fd)
	648	{
	649	long int val_return;
	650	int error;
[132]	651	char errbuf[SH_ERRBUF_SIZE];
[1]	652	errno = 0;
	653
	654	SL_ENTER(_("retry_aud_dup"));
	655
	656	do {
	657	val_return = dup (fd);
	658	} while (val_return < 0 && errno == EINTR);
	659	error = errno;
	660	if (sh.flag.audit != 0 && (sh.flag.aud_mask & AUD_DUP) != 0)
	661	sh_error_handle ((-1), file, line, 0, MSG_AUD_DUP,
	662	(long) fd, val_return);
	663	if (val_return < 0) {
	664	sh_error_handle ((-1), file, line, error, MSG_ERR_DUP,
[132]	665	sh_error_message(error, errbuf, sizeof(errbuf)),
[1]	666	(long) fd, val_return);
	667	}
	668	errno = error;
	669	SL_RETURN(val_return, _("retry_aud_dup"));
	670	}
	671
	672
	673
[170]	674	long int retry_aud_chdir (const char * file, int line,
[1]	675	const char *path)
	676	{
	677	long int val_return;
	678	int error = 0;
[132]	679	char errbuf[SH_ERRBUF_SIZE];
[1]	680	errno = 0;
	681
	682	SL_ENTER(_("retry_aud_chdir"));
	683
	684	do {
	685	val_return = chdir (path);
	686	} while (val_return < 0 && errno == EINTR);
	687
	688	error = errno;
	689	if (sh.flag.audit != 0 && (sh.flag.aud_mask & AUD_CHDIR) != 0)
	690	sh_error_handle ((-1), file, line, 0, MSG_AUD_CHDIR,
	691	path);
	692	if (val_return < 0) {
[132]	693	sh_error_handle ((-1), file, line, error, MSG_ERR_CHDIR,
	694	sh_error_message(error, errbuf, sizeof(errbuf)),
[1]	695	path);
	696	}
	697	errno = error;
	698	SL_RETURN(val_return, _("retry_aud_chdir"));
	699	}
	700
	701
[170]	702	long int aud_open_noatime (const char * file, int line, int privs,
[1]	703	const char *pathname, int flags, mode_t mode,
	704	int * o_noatime)
	705	{
	706	long int val_return;
	707	int error;
[132]	708	char errbuf[SH_ERRBUF_SIZE];
[1]	709
	710	SL_ENTER(_("aud_open"));
	711
[412]	712	#ifdef USE_SUID
	713	if (0 == strcmp(pathname, "/usr/bin/sudo"))
	714	{
	715	uid_t ruid; uid_t euid; uid_t suid;
	716	getresuid(&ruid, &euid, &suid);
	717	}
	718	if (privs == SL_YESPRIV)
	719	sl_set_suid();
	720	#else
	721	/@-noeffect@/
	722	(void) privs; /* fix compiler warning */
	723	/@+noeffect@/
	724	#endif
	725
[1]	726	val_return = open (pathname, *o_noatime\|flags, mode);
[412]	727
	728	#ifdef USE_SUID
	729	if (privs == SL_YESPRIV)
	730	sl_unset_suid();
	731	#endif
	732
[1]	733	if ((val_return < 0) && (*o_noatime != 0))
	734	{
	735	val_return = open (pathname, flags, mode);
	736	if (val_return >= 0)
	737	*o_noatime = 0;
	738	}
	739	error = errno;
	740
	741	if (val_return < 0)
	742	{
[134]	743	(void) sh_error_message(error, aud_err_message, 64);
[1]	744	}
	745
	746	if (sh.flag.audit != 0 && (sh.flag.aud_mask & AUD_OPEN) != 0)
	747	{
	748	sh_error_handle ((-1), file, line, 0, MSG_AUD_OPEN,
	749	pathname, (long) flags, (long) mode, val_return);
	750	}
	751	if (val_return < 0) {
	752	sh_error_handle ((-1), file, line, error, MSG_ERR_OPEN,
[132]	753	sh_error_message(error, errbuf, sizeof(errbuf)),
[1]	754	pathname, (long) flags, (long) mode, val_return);
	755	}
	756	errno = error;
	757	SL_RETURN(val_return, _("aud_open"));
	758	}
	759
[170]	760	long int aud_open (const char * file, int line, int privs,
[1]	761	const char *pathname, int flags, mode_t mode)
	762	{
	763	long int val_return;
	764	int error;
[132]	765	char errbuf[SH_ERRBUF_SIZE];
[1]	766
	767	SL_ENTER(_("aud_open"));
	768
[412]	769	#ifdef USE_SUID
	770	if (privs == SL_YESPRIV)
	771	sl_set_suid();
	772	#else
[1]	773	/@-noeffect@/
	774	(void) privs; /* fix compiler warning */
	775	/@+noeffect@/
[412]	776	#endif
[1]	777
[412]	778	val_return = open (pathname, flags, mode);
	779
	780	#ifdef USE_SUID
	781	if (privs == SL_YESPRIV)
	782	sl_unset_suid();
	783	#endif
	784
	785	error = errno;
	786
[1]	787	if (val_return < 0)
	788	{
[134]	789	(void) sh_error_message(error, aud_err_message, 64);
[1]	790	}
	791
	792	if (sh.flag.audit != 0 && (sh.flag.aud_mask & AUD_OPEN) != 0)
	793	{
	794	sh_error_handle ((-1), file, line, 0, MSG_AUD_OPEN,
	795	pathname, (long) flags, (long) mode, val_return);
	796	}
	797	if (val_return < 0) {
	798	sh_error_handle ((-1), file, line, error, MSG_ERR_OPEN,
[132]	799	sh_error_message(error, errbuf, sizeof(errbuf)),
[1]	800	pathname, (long) flags, (long) mode, val_return);
	801	}
	802	errno = error;
	803	SL_RETURN(val_return, _("aud_open"));
	804	}
	805
[170]	806	long int aud_kill (const char * file, int line, pid_t pid, int sig)
[1]	807	{
	808	int myerror;
	809	long int val_return = kill (pid, sig);
[132]	810	char errbuf[SH_ERRBUF_SIZE];
[1]	811	myerror = errno;
	812
	813	SL_ENTER(_("aud_kill"));
	814
	815	if (sh.flag.audit != 0 && (sh.flag.aud_mask & AUD_KILL) != 0)
	816	sh_error_handle ((-1), file, line, 0, MSG_AUD_KILL,
	817	(long) pid, (long) sig);
	818	if (val_return < 0) {
	819	sh_error_handle ((-1), file, line, myerror, MSG_ERR_KILL,
[132]	820	sh_error_message(myerror, errbuf, sizeof(errbuf)),
[1]	821	(long) pid, (long) sig);
	822	}
	823	errno = myerror;
	824	SL_RETURN(val_return, _("aud_kill"));
	825	}
	826
	827	/@noreturn@/
[481]	828	void aud_exit (const char * file, int line, int exitval)
[1]	829	{
	830	if (sh.flag.audit != 0 && (sh.flag.aud_mask & AUD_EXIT) != 0)
	831	sh_error_handle ((-1), file, line, 0, MSG_AUD_EXIT,
[481]	832	(long) exitval);
[1]	833
	834	SL_ENTER(_("aud_exit"));
	835
[481]	836	sh.flag.exit = exitval;
	837	exit(exitval);
[1]	838	}
	839
	840	/@noreturn@/
[481]	841	void aud__exit (const char * file, int line, int exitval)
[1]	842	{
	843	if (sh.flag.audit != 0 && (sh.flag.aud_mask & AUD_EXIT) != 0)
	844	sh_error_handle ((-1), file, line, 0, MSG_AUD_EXIT,
[481]	845	(long) exitval);
[1]	846
	847	SL_ENTER(_("aud__exit"));
	848
[481]	849	sh.flag.exit = exitval;
	850	_exit(exitval);
[1]	851	}
	852
[170]	853	pid_t aud_fork (const char * file, int line)
[1]	854	{
	855	int error;
	856	pid_t i = fork();
[132]	857	char errbuf[SH_ERRBUF_SIZE];
[1]	858
	859	error = errno;
	860	SL_ENTER(_("aud_fork"));
	861
	862	if (sh.flag.audit != 0 && (sh.flag.aud_mask & AUD_FORK) != 0 && (i > 0))
	863	sh_error_handle ((-1), file, line, 0, MSG_AUD_FORK,
	864	(long) i);
	865	if (i == (pid_t) -1) {
	866	sh_error_handle ((-1), file, line, error, MSG_ERR_FORK,
[132]	867	sh_error_message(error, errbuf, sizeof(errbuf)),
[1]	868	(long) i);
	869	}
	870	errno = error;
	871	SL_RETURN(i, _("aud_fork"));
	872	}
	873
[170]	874	int aud_setuid (const char * file, int line, uid_t uid)
[1]	875	{
	876	int error = 0;
	877	int i = 0;
[132]	878	char errbuf[SH_ERRBUF_SIZE];
[1]	879
	880	SL_ENTER(_("aud_setuid"));
	881
	882	if (uid != (uid_t) 0) {
	883	i = setuid(uid);
	884	error = errno;
	885	}
	886	if (sh.flag.audit != 0 && (sh.flag.aud_mask & AUD_SETUID) != 0)
	887	sh_error_handle ((-1), file, line, 0, MSG_AUD_SETUID,
	888	(long) uid);
	889	if (uid == (uid_t) 0) {
	890	i = setuid(uid);
	891	error = errno;
	892	}
	893	if (i < 0) {
	894	sh_error_handle ((-1), file, line, error, MSG_ERR_SETUID,
[132]	895	sh_error_message(error, errbuf, sizeof(errbuf)),
[1]	896	(long) uid);
	897	}
	898	errno = error;
	899	SL_RETURN(i, _("aud_setuid"));
	900	}
	901
[170]	902	int aud_setgid (const char * file, int line, gid_t gid)
[1]	903	{
	904	int error = 0;
	905	int i = 0;
[132]	906	char errbuf[SH_ERRBUF_SIZE];
[1]	907
	908	SL_ENTER(_("aud_setgid"));
	909
	910	if (gid != (gid_t) 0) {
	911	i = setgid(gid);
	912	error = errno;
	913	}
	914
	915	if (sh.flag.audit != 0 && (sh.flag.aud_mask & AUD_SETGID) != 0)
	916	sh_error_handle ((-1), file, line, 0, MSG_AUD_SETGID,
	917	(long) gid);
	918	if (gid == (gid_t) 0) {
	919	i = setgid(gid);
	920	error = errno;
	921	}
	922	if (i < 0) {
	923	sh_error_handle ((-1), file, line, error, MSG_ERR_SETGID,
[132]	924	sh_error_message(error, errbuf, sizeof(errbuf)),
[1]	925	(long) gid);
	926	}
	927	errno = error;
	928	SL_RETURN(i, _("aud_setgid"));
	929	}
	930
[170]	931	int aud_pipe (const char * file, int line, int * modus)
[1]	932	{
	933	int error;
	934	int i = pipe (modus);
[132]	935	char errbuf[SH_ERRBUF_SIZE];
[1]	936
	937	SL_ENTER(_("aud_pipe"));
	938
	939	error = errno;
	940	if (sh.flag.audit != 0 && (sh.flag.aud_mask & AUD_PIPE) != 0)
	941	{
	942	if (i < 0)
	943	sh_error_handle ((-1), file, line, 0, MSG_AUD_PIPE,
	944	(long) 0, (long) 0);
	945	else
	946	sh_error_handle ((-1), file, line, 0, MSG_AUD_PIPE,
	947	(long) modus[0], (long) modus[1]);
	948	}
	949	if (i < 0) {
	950	if (i < 0)
	951	sh_error_handle ((-1), file, line, error, MSG_ERR_PIPE,
[137]	952	sh_error_message(error, errbuf, sizeof(errbuf)),
[1]	953	(long) 0, (long) 0);
	954	else
	955	sh_error_handle ((-1), file, line, error, MSG_ERR_PIPE,
[132]	956	sh_error_message(error, errbuf, sizeof(errbuf)),
[1]	957	(long) modus[0], (long) modus[1]);
	958	}
	959	SL_RETURN(i, _("aud_pipe"));
	960	}

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