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source: trunk/src/sh_suidchk.c@ 235

Last change on this file since 235 was 231, checked in by katerina, 16 years ago
Recognize fdesc filesystem on MacOS X for suid check (ticket #153).
File size: 52.8 KB

Rev	Line
[1]	1	/* SAMHAIN file system integrity testing */
	2	/* Copyright (C) 2001 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
	23	#include <stdio.h>
	24	#include <stdlib.h>
	25	#include <string.h>
	26	#include <sys/types.h>
	27	#include <sys/stat.h>
	28	#include <fcntl.h>
	29	#include <unistd.h>
	30	#include <errno.h>
	31	#include <limits.h>
[94]	32
[1]	33	#ifdef HAVE_SCHED_H
	34	#include <sched.h>
	35	#endif
	36
	37	#ifdef SH_USE_SUIDCHK
	38
	39	#undef FIL__
	40	#define FIL__ _("sh_suidchk.c")
	41
	42	#if defined (SH_WITH_CLIENT) \|\| defined (SH_STANDALONE)
	43
	44	#if TIME_WITH_SYS_TIME
	45	#include <sys/time.h>
	46	#include <time.h>
	47	#else
	48	#if HAVE_SYS_TIME_H
	49	#include <sys/time.h>
	50	#else
	51	#include <time.h>
	52	#endif
	53	#endif
	54
	55	#ifdef HAVE_DIRENT_H
	56	#include <dirent.h>
	57	#define NAMLEN(dirent) sl_strlen((dirent)->d_name)
	58	#else
	59	#define dirent direct
	60	#define NAMLEN(dirent) (dirent)->d_namlen
	61	#ifdef HAVE_SYS_NDIR_H
	62	#include <sys/ndir.h>
	63	#endif
	64	#ifdef HAVE_SYS_DIR_H
	65	#include <sys/dir.h>
	66	#endif
	67	#ifdef HAVE_NDIR_H
	68	#include <ndir.h>
	69	#endif
	70	#endif
[137]	71	#define NEED_ADD_DIRENT
[1]	72
	73	#include "samhain.h"
[131]	74	#include "sh_pthread.h"
[1]	75	#include "sh_utils.h"
	76	#include "sh_error.h"
	77	#include "sh_modules.h"
	78	#include "sh_suidchk.h"
	79	#include "sh_hash.h"
	80	#include "sh_unix.h"
	81	#include "sh_files.h"
	82	#include "sh_schedule.h"
	83	#include "sh_calls.h"
	84
	85
	86	sh_rconf sh_suidchk_table[] = {
	87	{
	88	N_("severitysuidcheck"),
	89	sh_suidchk_set_severity
	90	},
	91	{
	92	N_("suidcheckactive"),
	93	sh_suidchk_set_activate
	94	},
	95	{
	96	N_("suidcheckinterval"),
	97	sh_suidchk_set_timer
	98	},
	99	{
	100	N_("suidcheckschedule"),
	101	sh_suidchk_set_schedule
	102	},
	103	{
	104	N_("suidcheckexclude"),
	105	sh_suidchk_set_exclude
	106	},
	107	{
	108	N_("suidcheckfps"),
	109	sh_suidchk_set_fps
	110	},
	111	{
	112	N_("suidcheckyield"),
	113	sh_suidchk_set_yield
	114	},
	115	{
[119]	116	N_("suidchecknosuid"),
	117	sh_suidchk_set_nosuid
	118	},
	119	{
[1]	120	N_("suidcheckquarantinefiles"),
	121	sh_suidchk_set_quarantine
	122	},
	123	{
	124	N_("suidcheckquarantinemethod"),
	125	sh_suidchk_set_qmethod
	126	},
	127	{
	128	N_("suidcheckquarantinedelete"),
	129	sh_suidchk_set_qdelete
	130	},
	131	{
	132	NULL,
	133	NULL
	134	},
	135	};
	136
	137
	138	static time_t lastcheck = (time_t) 0;
	139	static int ShSuidchkActive = S_TRUE;
	140	static time_t ShSuidchkInterval = 7200;
	141	static long ShSuidchkFps = 0;
[119]	142	static int ShSuidchkNosuid = S_FALSE;
[1]	143	static int ShSuidchkYield = S_FALSE;
	144	static int ShSuidchkQEnable = S_FALSE;
	145	static int ShSuidchkQMethod = SH_Q_CHANGEPERM;
	146	static int ShSuidchkQDelete = S_FALSE;
	147	static int ShSuidchkSeverity = SH_ERR_SEVERE;
	148	static char * ShSuidchkExclude = NULL;
[68]	149	static size_t ExcludeLen = 0;
[1]	150
	151	static time_t FileLimNow = 0;
	152	static time_t FileLimStart = 0;
	153	static long FileLimNum = 0;
	154	static long FileLimTotal = 0;
	155
	156	static sh_schedule_t * ShSuidchkSched = NULL;
	157
	158	static char *
	159	filesystem_type (char * path, char * relpath, struct stat * statp);
	160
	161	#ifndef PATH_MAX
	162	#define PATH_MAX 1024
	163	#endif
	164
	165	extern unsigned long sh_files_maskof (int class);
	166
[149]	167	static void set_defaults (void)
	168	{
	169	ShSuidchkActive = S_TRUE;
	170	ShSuidchkInterval = 7200;
	171	ShSuidchkFps = 0;
	172	ShSuidchkNosuid = S_FALSE;
	173	ShSuidchkYield = S_FALSE;
	174	ShSuidchkQEnable = S_FALSE;
	175	ShSuidchkQMethod = SH_Q_CHANGEPERM;
	176	ShSuidchkQDelete = S_FALSE;
	177	ShSuidchkSeverity = SH_ERR_SEVERE;
	178	if (ShSuidchkExclude != NULL)
	179	SH_FREE(ShSuidchkExclude);
	180	ShSuidchkExclude = NULL;
	181	ExcludeLen = 0;
	182
	183	FileLimNow = 0;
	184	FileLimStart = 0;
	185	FileLimNum = 0;
	186	FileLimTotal = 0;
	187
	188	return;
	189	}
	190
[1]	191	/* Recursively descend into the directory to make sure that
	192	* there is no symlink in the path.
	193	*/
	194	static int do_truncate_int (char * path, int depth)
	195	{
	196	char * q;
	197	struct stat one;
	198	struct stat two;
	199	int fd;
[132]	200	char errbuf[SH_ERRBUF_SIZE];
[1]	201
	202	if (depth > 99)
	203	{
	204	sh_error_handle ((-1), FIL__, __LINE__, EINVAL,
	205	MSG_SUID_ERROR,
	206	_("do_truncate: max depth 99 exceeded"));
	207	return -1;
	208	}
	209	++depth;
	210	if (path[0] != '/')
	211	{
	212	sh_error_handle ((-1), FIL__, __LINE__, EINVAL,
	213	MSG_SUID_ERROR,
	214	_("do_truncate: not an absolute path"));
	215	return -1;
	216	}
	217	++path;
	218	q = strchr(path, '/');
	219	if (q)
	220	{
	221	*q = '\0';
	222	if (0 != retry_lstat(FIL__, __LINE__, path, &one))
	223	{
	224	sh_error_handle ((-1), FIL__, __LINE__, errno,
	225	MSG_SUID_ERROR,
[132]	226	sh_error_message(errno, errbuf, sizeof(errbuf)));
[1]	227	*q = '/';
	228	return -1;
	229	}
	230	if (/@-usedef@/!S_ISDIR(one.st_mode)/@+usedef@/)
	231
	232	{
	233	sh_error_handle ((-1), FIL__, __LINE__, EINVAL,
	234	MSG_SUID_ERROR,
	235	_("Possible race: not a directory"));
	236	*q = '/';
	237	return -1;
	238	}
	239
	240
	241	if (0 != chdir(path))
	242	{
	243	sh_error_handle ((-1), FIL__, __LINE__, errno,
	244	MSG_SUID_ERROR,
[132]	245	sh_error_message(errno, errbuf, sizeof(errbuf)));
[1]	246	*q = '/';
	247	return -1;
	248	}
	249	*q = '/';
	250	if (0 != retry_lstat(FIL__, __LINE__, ".", &two))
	251	{
	252	sh_error_handle ((-1), FIL__, __LINE__, errno,
	253	MSG_SUID_ERROR,
[132]	254	sh_error_message(errno, errbuf, sizeof(errbuf)));
[1]	255	return -1;
	256	}
	257	if (/@-usedef@/(one.st_dev != two.st_dev) \|\|
	258	(one.st_ino != two.st_ino) \|\|
	259	(!S_ISDIR(two.st_mode))/@+usedef@/)
	260	{
	261	sh_error_handle ((-1), FIL__, __LINE__, EINVAL,
	262	MSG_SUID_ERROR,
	263	_("Possible race: lstat(dir) != lstat(.)"));
	264	return -1;
	265	}
	266
	267
	268	return (do_truncate_int(q, depth));
	269	}
	270	else
	271	{
	272	/* no more '/', so this is the file
	273	*/
	274	if (*path == '\0')
	275	return -1;
	276	if (0 != retry_lstat(FIL__, __LINE__, path, &one))
	277	{
	278	sh_error_handle ((-1), FIL__, __LINE__, errno,
	279	MSG_SUID_ERROR,
[132]	280	sh_error_message(errno, errbuf, sizeof(errbuf)));
[1]	281	return -1;
	282	}
	283	fd = open(path, O_RDWR);
	284	if (-1 == fd)
	285	{
	286	sh_error_handle ((-1), FIL__, __LINE__, errno,
	287	MSG_SUID_ERROR,
[132]	288	sh_error_message(errno, errbuf, sizeof(errbuf)));
[1]	289	return -1;
	290	}
	291	if (0 != retry_fstat(FIL__, __LINE__, fd, &two))
	292	{
	293	sh_error_handle ((-1), FIL__, __LINE__, errno,
	294	MSG_SUID_ERROR,
[132]	295	sh_error_message(errno, errbuf, sizeof(errbuf)));
[1]	296	(void) close(fd);
	297	return -1;
	298	}
	299	if (/@-usedef@/(one.st_dev != two.st_dev) \|\|
	300	(one.st_ino != two.st_ino)/@+usedef@/)
	301	{
	302	sh_error_handle ((-1), FIL__, __LINE__, EINVAL,
	303	MSG_SUID_ERROR,
	304	_("Possible race: lstat != fstat"));
	305	(void) close(fd);
	306	return -1;
	307	}
	308	if (!S_ISREG(two.st_mode))
	309	{
	310	sh_error_handle ((-1), FIL__, __LINE__, EINVAL,
	311	MSG_SUID_ERROR,
	312	_("Possible race: not a regular file"));
	313	(void) close(fd);
	314	return -1;
	315	}
	316	if ((0 == (two.st_mode & S_ISUID)) && (0 == (two.st_mode & S_ISGID)))
	317	{
	318	sh_error_handle ((-1), FIL__, __LINE__, EINVAL,
	319	MSG_SUID_ERROR,
	320	_("Possible race: not a suid/sgid file"));
	321	(void) close(fd);
	322	return -1;
	323	}
	324	if (ShSuidchkQDelete == S_FALSE)
	325	{
	326	if ((two.st_mode & S_ISUID) > 0)
	327	two.st_mode -= S_ISUID;
	328	if ((two.st_mode & S_ISGID) > 0)
	329	two.st_mode -= S_ISGID;
	330	#ifdef HAVE_FCHMOD
	331	if (-1 == /@-unrecog@/fchmod(fd, two.st_mode)/@+unrecog@/)
	332	{
	333	sh_error_handle ((-1), FIL__, __LINE__, errno,
	334	MSG_SUID_ERROR,
[132]	335	sh_error_message(errno, errbuf, sizeof(errbuf)));
[1]	336	(void) close(fd);
	337	return -1;
	338	}
	339	#else
	340	sh_error_handle ((-1), FIL__, __LINE__, errno,
	341	MSG_SUID_ERROR,
	342	_("The fchmod() function is not available"));
	343	(void) close(fd);
	344	return -1;
	345	#endif
	346	if (two.st_nlink > 1)
	347	{
	348	sh_error_handle ((-1), FIL__, __LINE__, 0,
	349	MSG_SUID_ERROR,
	350	_("Not truncated because hardlink count gt 1"));
	351	(void) close(fd);
	352	return -1;
	353	}
	354	/* The man page says: 'POSIX has ftruncate'
	355	*/
	356	if (-1 == /@-unrecog@/ftruncate(fd, 0)/@+unrecog@/)
	357	{
	358	sh_error_handle ((-1), FIL__, __LINE__, errno,
	359	MSG_SUID_ERROR,
[132]	360	sh_error_message(errno, errbuf, sizeof(errbuf)));
[1]	361	(void) close(fd);
	362	return -1;
	363	}
	364	}
	365	else
	366	{
	367	if (-1 == retry_aud_unlink(FIL__, __LINE__, path))
	368	{
	369	sh_error_handle ((-1), FIL__, __LINE__, errno,
	370	MSG_SUID_ERROR,
[132]	371	sh_error_message(errno, errbuf, sizeof(errbuf)));
[1]	372	(void) close(fd);
	373	return -1;
	374	}
	375	}
	376	(void) close (fd);
	377	return (0);
	378	}
	379	}
	380
[94]	381	static int do_truncate (const char * path_in)
[1]	382	{
[94]	383	int caperr;
	384	int result;
	385	char * path;
[132]	386	char errbuf[SH_ERRBUF_SIZE];
[1]	387
	388	if (0 != chdir("/"))
	389	{
	390	sh_error_handle ((-1), FIL__, __LINE__, errno,
	391	MSG_SUID_ERROR,
[132]	392	sh_error_message(errno, errbuf, sizeof(errbuf)));
[1]	393	}
	394
	395	if (0 != (caperr = sl_get_cap_qdel()))
	396	{
	397	sh_error_handle((-1), FIL__, __LINE__, caperr, MSG_E_SUBGEN,
[132]	398	sh_error_message (caperr, errbuf, sizeof(errbuf)),
[1]	399	_("sl_get_cap_qdel"));
	400	}
	401
[94]	402	path = sh_util_strdup (path_in);
[1]	403	result = do_truncate_int (path, 0);
[94]	404	SH_FREE(path);
[1]	405
	406	if (0 != (caperr = sl_drop_cap_qdel()))
	407	{
	408	sh_error_handle((-1), FIL__, __LINE__, caperr, MSG_E_SUBGEN,
[132]	409	sh_error_message (caperr, errbuf, sizeof(errbuf)),
[1]	410	_("sl_drop_cap_qdel"));
	411	}
	412
	413	if (0 != chdir("/"))
	414	{
	415	sh_error_handle ((-1), FIL__, __LINE__, errno,
	416	MSG_SUID_ERROR,
[132]	417	sh_error_message(errno, errbuf, sizeof(errbuf)));
[1]	418	}
	419	return result;
	420	}
	421
[94]	422	static void sh_q_delete(const char * fullpath)
	423	{
	424	int status;
	425	char * msg;
	426	char * tmp;
	427
	428	if (do_truncate (fullpath) == -1)
	429	{
	430	status = errno;
	431	msg = SH_ALLOC(SH_BUFSIZE);
	432	tmp = sh_util_safe_name(fullpath);
	433
	434	(void) sl_snprintf(msg, SH_BUFSIZE,
	435	_("Problem quarantining file. File NOT quarantined. errno = %ld"),
	436	status);
	437	sh_error_handle (ShSuidchkSeverity,
	438	FIL__, __LINE__,
	439	status,
	440	MSG_SUID_QREPORT, msg,
	441	tmp );
	442	SH_FREE(tmp);
	443	SH_FREE(msg);
	444	}
	445	else
	446	{
	447	tmp = sh_util_safe_name(fullpath);
	448	sh_error_handle (ShSuidchkSeverity,
	449	FIL__, __LINE__, 0,
	450	MSG_SUID_QREPORT,
	451	_("Quarantine method applied"),
	452	tmp );
	453	SH_FREE(tmp);
	454	}
	455	return;
	456	}
	457
	458	static void sh_q_move(const char * fullpath, file_type * theFile,
	459	const char * timestrc, const char * timestra,
	460	const char * timestrm)
	461	{
	462	int status;
	463	int readFile = -1;
	464	int writeFile = -1;;
	465	struct stat fileInfo;
	466	ssize_t count;
	467	char * msg;
	468	char * tmp;
	469	char * basetmp;
	470	char * filetmp;
	471	char buffer[1024];
	472	char * dir = SH_ALLOC(PATH_MAX+1);
	473	mode_t umask_old;
	474	FILE * filePtr = NULL;
	475
	476	(void) sl_strlcpy (dir, DEFAULT_QDIR, PATH_MAX+1);
	477
	478	if (retry_stat (FIL__, __LINE__, dir, &fileInfo) != 0)
	479	{
	480	/* Quarantine directory does not exist,
	481	*/
	482	status = errno;
	483	msg = SH_ALLOC(SH_BUFSIZE);
	484	tmp = sh_util_safe_name(fullpath);
	485
	486	(void) sl_snprintf(msg, SH_BUFSIZE,
	487	_("Problem quarantining file. File NOT quarantined. errno = %ld (stat)"),
	488	status);
	489	sh_error_handle (ShSuidchkSeverity,
	490	FIL__, __LINE__,
	491	status,
	492	MSG_SUID_QREPORT, msg,
	493	tmp );
	494	SH_FREE(tmp);
	495	SH_FREE(msg);
	496	}
	497	else
	498	{
	499	if (retry_lstat (FIL__, __LINE__,
	500	fullpath, &fileInfo) == -1)
	501	{
	502	status = errno;
	503	msg = SH_ALLOC(SH_BUFSIZE);
	504	tmp = sh_util_safe_name(fullpath);
	505
	506	(void) sl_snprintf(msg, SH_BUFSIZE, _("I/O error. errno = %ld(stat)"), status);
	507	sh_error_handle (ShSuidchkSeverity,
	508	FIL__, __LINE__,
	509	status,
	510	MSG_SUID_QREPORT,
	511	msg, tmp );
	512	SH_FREE(tmp);
	513	SH_FREE(msg);
	514	}
	515	else
	516	{
	517	basetmp = sh_util_strdup(fullpath);
	518	filetmp = SH_ALLOC(PATH_MAX+1);
	519	tmp = sh_util_basename(basetmp);
	520
	521	(void) sl_snprintf(filetmp, PATH_MAX+1, "%s/%s",
	522	DEFAULT_QDIR, tmp);
	523	SH_FREE(tmp);
	524	SH_FREE(basetmp);
	525
	526	readFile = open (fullpath, O_RDONLY);
	527	if (readFile != -1)
[166]	528	writeFile = open (filetmp, O_WRONLY\|O_CREAT, S_IRUSR\|S_IWUSR\|S_IXUSR);
[94]	529
	530	if ((readFile == -1) \|\| (writeFile == -1))
	531	{
	532	status = errno;
	533	msg = SH_ALLOC(SH_BUFSIZE);
	534	tmp = sh_util_safe_name(fullpath);
	535
	536	(void) sl_snprintf(msg, SH_BUFSIZE, _("Problem quarantining file. File NOT quarantined. errno = %ld (open)"), status);
	537	sh_error_handle (ShSuidchkSeverity,
	538	FIL__, __LINE__, status,
	539	MSG_SUID_QREPORT,
	540	msg, tmp );
	541	SH_FREE(tmp);
	542	SH_FREE(msg);
	543	}
	544	else
	545	{
	546	/* sizeof(buffer) is 1024
	547	*/
	548	while ((count = (int) read (readFile, buffer, sizeof (buffer))) > 0)
	549	{
	550	if ((int) write (writeFile, buffer, (size_t) count) != count)
	551	{
	552	status = errno;
	553	msg = SH_ALLOC(SH_BUFSIZE);
	554	tmp = sh_util_safe_name(fullpath);
	555
	556	(void) sl_snprintf(msg, SH_BUFSIZE,
	557	_("I/O error. errno = %ld (write)"), status);
	558	sh_error_handle (ShSuidchkSeverity,
	559	FIL__,
	560	__LINE__,
	561	status,
	562	MSG_SUID_QREPORT,
	563	msg, tmp );
	564	SH_FREE(tmp);
	565	SH_FREE(msg);
	566	}
	567	}
	568	}
	569
	570	(void) close (readFile);
	571	(void) fchmod(writeFile, S_IRUSR \| S_IWUSR \| S_IXUSR);
	572	(void) close (writeFile);
	573
	574	if (do_truncate (fullpath) == -1)
	575	{
	576	status = errno;
	577	msg = SH_ALLOC(SH_BUFSIZE);
	578	tmp = sh_util_safe_name(fullpath);
	579
	580	(void) sl_snprintf(msg, SH_BUFSIZE,
	581	_("Problem quarantining file. File NOT quarantined. errno = %ld"),
	582	status);
	583	sh_error_handle (ShSuidchkSeverity,
	584	FIL__, __LINE__, status,
	585	MSG_SUID_QREPORT,
	586	msg, tmp );
	587	SH_FREE(tmp);
	588	SH_FREE(msg);
	589	}
	590	else
	591	{
	592	tmp = sh_util_basename(fullpath);
	593
	594	(void) sl_snprintf(filetmp, PATH_MAX+1, "%s/%s.info",
	595	DEFAULT_QDIR,
	596	tmp);
	597
	598	SH_FREE(tmp);
	599	/*
	600	* avoid chmod by setting umask
	601	*/
	602	umask_old = umask (0077);
	603	filePtr = fopen (filetmp, "w+");
	604
	605	/@-usedef@/
	606	if (filePtr)
	607	{
	608	fprintf(filePtr,
	609	_("File Info:\n filename=%s\n size=%lu\n owner=%s(%d)\n group=%s(%d)\n ctime=%s\n atime=%s\n mtime=%s\n"),
	610	fullpath,
	611	(unsigned long) theFile->size,
	612	theFile->c_owner, (int) theFile->owner,
	613	theFile->c_group, (int) theFile->group,
	614	timestrc, timestra, timestrm);
	615	(void) fclose (filePtr);
	616	}
	617	/@+usedef@/
	618	umask (umask_old);
	619
	620	tmp = sh_util_safe_name(fullpath);
	621	sh_error_handle (ShSuidchkSeverity,
	622	FIL__,__LINE__,
	623	0, MSG_SUID_QREPORT,
	624	_("Quarantine method applied"),
	625	tmp );
	626	SH_FREE(tmp);
	627	}
	628	SH_FREE(filetmp);
	629	}
	630	}
	631	SH_FREE(dir);
	632	return;
	633	}
	634
	635	static void sh_q_changeperm(const char * fullpath)
	636	{
	637	int caperr;
	638	int status;
	639	char * msg;
	640	char * tmp;
	641	struct stat fileInfo;
	642	struct stat fileInfo_F;
	643	int cperm_status = 0;
	644	int file_d = -1;
[132]	645	char errbuf[SH_ERRBUF_SIZE];
[94]	646
	647	if (retry_lstat(FIL__, __LINE__, fullpath, &fileInfo) == -1)
	648	{
	649	status = errno;
	650	msg = SH_ALLOC(SH_BUFSIZE);
	651	tmp = sh_util_safe_name(fullpath);
	652
	653	(void) sl_snprintf(msg, SH_BUFSIZE, _("I/O error. errno = %ld"), status);
	654	sh_error_handle (ShSuidchkSeverity,
	655	FIL__, __LINE__,
	656	status,
	657	MSG_SUID_QREPORT, msg,
	658	tmp );
	659	SH_FREE(tmp);
	660	SH_FREE(msg);
	661	cperm_status = -1;
	662	}
	663
	664	if (cperm_status == 0)
	665	{
	666	if (0 != (caperr = sl_get_cap_qdel()))
	667	{
	668	sh_error_handle((-1), FIL__, __LINE__,
	669	caperr, MSG_E_SUBGEN,
[132]	670	sh_error_message (caperr, errbuf, sizeof(errbuf)),
[94]	671	_("sl_get_cap_qdel"));
	672	cperm_status = -1;
	673	}
	674	}
	675
	676	if (cperm_status == 0)
	677	{
	678	file_d = aud_open (FIL__, __LINE__, SL_YESPRIV,
	679	fullpath, O_RDONLY, 0);
	680	if (-1 == file_d)
	681	{
	682	status = errno;
	683	msg = SH_ALLOC(SH_BUFSIZE);
	684	tmp = sh_util_safe_name(fullpath);
	685
	686	(void) sl_snprintf(msg, SH_BUFSIZE, _("I/O error. errno = %ld"), status);
	687	sh_error_handle (ShSuidchkSeverity,
	688	FIL__, __LINE__,
	689	status,
	690	MSG_SUID_QREPORT, msg,
	691	tmp );
	692	SH_FREE(tmp);
	693	SH_FREE(msg);
	694	cperm_status = -1;
	695	}
	696	}
	697
	698	if (cperm_status == 0)
	699	{
	700	if (retry_fstat(FIL__, __LINE__, file_d, &fileInfo_F) == -1)
	701	{
	702	status = errno;
	703	msg = SH_ALLOC(SH_BUFSIZE);
	704	tmp = sh_util_safe_name(fullpath);
	705
	706	(void) sl_snprintf(msg, SH_BUFSIZE,
	707	_("I/O error. errno = %ld"), status);
	708	sh_error_handle (ShSuidchkSeverity,
	709	FIL__, __LINE__,
	710	status,
	711	MSG_SUID_QREPORT, msg,
	712	tmp );
	713	SH_FREE(tmp);
	714	SH_FREE(msg);
	715	cperm_status = -1;
	716	}
	717	}
	718
	719	if (cperm_status == 0)
	720	{
	721	if (fileInfo_F.st_ino != fileInfo.st_ino \|\|
	722	fileInfo_F.st_dev != fileInfo.st_dev \|\|
	723	fileInfo_F.st_mode != fileInfo.st_mode)
	724	{
	725	status = errno;
	726	msg = SH_ALLOC(SH_BUFSIZE);
	727	tmp = sh_util_safe_name(fullpath);
	728
	729	(void) sl_snprintf(msg, SH_BUFSIZE,
	730	_("Race detected. errno = %ld"), status);
	731	sh_error_handle (ShSuidchkSeverity,
	732	FIL__, __LINE__,
	733	status,
	734	MSG_SUID_QREPORT, msg,
	735	tmp );
	736	SH_FREE(tmp);
	737	SH_FREE(msg);
	738	cperm_status = -1;
	739	}
	740	}
	741
	742	if ((fileInfo.st_mode & S_ISUID) > 0)
	743	fileInfo.st_mode -= S_ISUID;
	744	if ((fileInfo.st_mode & S_ISGID) > 0)
	745	fileInfo.st_mode -= S_ISGID;
	746
	747	if (cperm_status == 0)
	748	{
	749	if (fchmod(file_d, fileInfo.st_mode) == -1)
	750	{
	751	status = errno;
	752	msg = SH_ALLOC(SH_BUFSIZE);
	753	tmp = sh_util_safe_name(fullpath);
	754
	755	(void) sl_snprintf(msg, SH_BUFSIZE,
	756	_("Problem quarantining file. File NOT quarantined. errno = %ld"),
	757	status);
	758	sh_error_handle (ShSuidchkSeverity,
	759	FIL__, __LINE__,
	760	status,
	761	MSG_SUID_QREPORT,
	762	msg, tmp );
	763	SH_FREE(tmp);
	764	SH_FREE(msg);
	765	}
	766	else
	767	{
	768	tmp = sh_util_safe_name(fullpath);
	769	sh_error_handle (ShSuidchkSeverity,
	770	FIL__, __LINE__,
	771	0,
	772	MSG_SUID_QREPORT,
	773	_("Quarantine method applied"),
	774	tmp );
	775	SH_FREE(tmp);
	776	}
	777	}
	778
	779	if (0 != (caperr = sl_drop_cap_qdel()))
	780	{
	781	sh_error_handle((-1), FIL__, __LINE__,
	782	caperr, MSG_E_SUBGEN,
[132]	783	sh_error_message (caperr, errbuf, sizeof(errbuf)),
[94]	784	_("sl_drop_cap_qdel"));
	785	}
	786
	787	if (file_d != -1)
	788	{
	789	do {
	790	status = close (file_d);
	791	} while (status == -1 && errno == EINTR);
	792
	793	if (-1 == status)
	794	{
	795	status = errno;
	796	msg = SH_ALLOC(SH_BUFSIZE);
	797	tmp = sh_util_safe_name(fullpath);
	798
	799	(void) sl_snprintf(msg, SH_BUFSIZE,
	800	_("I/O error. errno = %ld"), status);
	801	sh_error_handle (ShSuidchkSeverity,
	802	FIL__, __LINE__,
	803	status,
	804	MSG_SUID_QREPORT, msg,
	805	tmp );
	806	SH_FREE(tmp);
	807	SH_FREE(msg);
	808	cperm_status = -1;
	809	}
	810	}
	811	return;
	812	}
	813
	814	static void report_file (const char * tmpcat, file_type * theFile,
	815	char * timestrc, char * timestra, char * timestrm)
	816	{
	817	char * msg = SH_ALLOC(SH_BUFSIZE);
	818	char * tmp = sh_util_safe_name(tmpcat);
	819
	820	msg[0] = '\0';
	821	/@-usedef@/
[132]	822
[94]	823	#ifdef SH_USE_XML
	824	(void) sl_snprintf(msg, SH_BUFSIZE, _("owner_new=\"%s\" iowner_new=\"%ld\" group_new=\"%s\" igroup_new=\"%ld\" size_new=\"%lu\" ctime_new=\"%s\" atime_new=\"%s\" mtime_new=\"%s\""),
	825	theFile->c_owner, theFile->owner,
	826	theFile->c_group, theFile->group,
	827	(unsigned long) theFile->size,
	828	timestrc, timestra, timestrm);
	829	#else
	830	(void) sl_snprintf(msg, SH_BUFSIZE, _("owner_new=<%s>, iowner_new=<%ld>, group_new=<%s>, igroup_new=<%ld>, filesize=<%lu>, ctime=<%s>, atime=<%s>, mtime=<%s>"),
	831	theFile->c_owner, theFile->owner,
	832	theFile->c_group, theFile->group,
	833	(unsigned long) theFile->size,
	834	timestrc, timestra, timestrm);
	835	#endif
	836	/@+usedef@/
	837
	838	sh_error_handle (ShSuidchkSeverity, FIL__, __LINE__,
	839	0, MSG_SUID_POLICY,
	840	_("suid/sgid file not in database"),
	841	tmp, msg );
	842	SH_FREE(tmp);
	843	SH_FREE(msg);
	844	return;
	845	}
	846
[1]	847	static
	848	int sh_suidchk_check_internal (char * iname)
	849	{
	850	DIR * thisDir = NULL;
	851	struct dirent * thisEntry;
	852	char * tmpcat;
	853	char * tmp;
	854	char timestrc[32];
	855	char timestra[32];
	856	char timestrm[32];
	857	struct stat buf;
	858	int status;
[115]	859	int fflags;
[1]	860	char * fs;
[170]	861	long sl_status;
[227]	862	file_type * theFile = NULL;
[19]	863	char fileHash[2*(KEY_LEN + 1)];
[1]	864
[170]	865	struct sh_dirent * dirlist;
	866	struct sh_dirent * dirlist_orig;
[132]	867	char errbuf[SH_ERRBUF_SIZE];
[22]	868
[1]	869	SL_ENTER(_("sh_suidchk_check_internal"));
	870
	871	if (iname == NULL)
	872	{
	873	TPT((0, FIL__, __LINE__ , _("msg=<directory name is NULL>\n")));
	874	SL_RETURN( (-1), _("sh_suidchk_check_internal"));
	875	}
	876
	877	if (sig_urgent > 0) {
	878	SL_RETURN( (0), _("sh_suidchk_check_internal"));
	879	}
	880
	881	thisDir = opendir (iname);
	882
	883	if (thisDir == NULL)
	884	{
	885	status = errno;
	886	tmp = sh_util_safe_name(iname);
	887	sh_error_handle (ShDFLevel[SH_ERR_T_DIR], FIL__, __LINE__, status,
	888	MSG_E_OPENDIR,
[132]	889	sh_error_message (status, errbuf, sizeof(errbuf)), tmp);
[1]	890	SH_FREE(tmp);
	891	SL_RETURN( (-1), _("sh_suidchk_check_internal"));
	892	}
	893
[94]	894	/* Loop over directory entries
	895	*/
[137]	896	SH_MUTEX_LOCK(mutex_readdir);
[131]	897
[170]	898	dirlist = NULL;
	899	dirlist_orig = NULL;
	900
[1]	901	do {
	902
	903	thisEntry = readdir (thisDir);
	904
	905	if (thisEntry != NULL) {
	906
	907	if (sl_strcmp (thisEntry->d_name, ".") == 0)
	908	continue;
	909
	910	if (sl_strcmp (thisEntry->d_name, "..") == 0)
	911	continue;
	912
[131]	913	dirlist = addto_sh_dirlist (thisEntry, dirlist);
	914	}
[1]	915
[131]	916	} while (thisEntry != NULL);
[94]	917
[137]	918	SH_MUTEX_UNLOCK(mutex_readdir);
[94]	919
[131]	920	closedir(thisDir);
[1]	921
[131]	922	dirlist_orig = dirlist;
[1]	923
[170]	924	sl_status = SL_ENONE;
	925
[131]	926	do {
	927
	928	/* If the directory is empty, dirlist = NULL
	929	*/
	930	if (!dirlist)
	931	break;
	932
[143]	933	if (sig_urgent > 0) {
	934	SL_RETURN( (0), _("sh_suidchk_check_internal"));
	935	}
	936
[131]	937	tmpcat = SH_ALLOC(PATH_MAX);
	938	(void) sl_strlcpy(tmpcat, iname, PATH_MAX);
	939
	940	if ((sl_strlen(tmpcat) != sl_strlen(iname)) \|\| (tmpcat[0] == '\0'))
	941	{
	942	sl_status = SL_ETRUNC;
	943	}
	944	else
	945	{
	946	if (tmpcat[1] != '\0')
	947	sl_status = sl_strlcat(tmpcat, "/", PATH_MAX);
	948	}
	949
	950	if (! SL_ISERROR(sl_status))
	951	sl_status = sl_strlcat(tmpcat, dirlist->sh_d_name, PATH_MAX);
	952
	953	if (SL_ISERROR(sl_status))
	954	{
	955	tmp = sh_util_safe_name(tmpcat);
	956	sh_error_handle ((-1), FIL__, __LINE__, (int) sl_status,
	957	MSG_E_SUBGPATH,
	958	_("path too long"),
	959	_("sh_suidchk_check_internal"), tmp );
	960	SH_FREE(tmp);
[227]	961	SH_FREE(tmpcat);
[131]	962	dirlist = dirlist->next;
	963	continue;
	964	}
	965
	966	++FileLimNum;
	967	++FileLimTotal;
	968
	969	/* Rate limit (Fps == Files per second)
	970	*/
	971	if ((ShSuidchkFps > 0 && FileLimNum > ShSuidchkFps && FileLimTotal > 0)&&
	972	(ShSuidchkYield == S_FALSE))
	973	{
	974	FileLimNum = 0;
	975	FileLimNow = time(NULL);
	976
	977	if ( (FileLimNow - FileLimStart) > 0 &&
	978	FileLimTotal/(FileLimNow - FileLimStart) > ShSuidchkFps )
	979	(void) retry_msleep((int)((FileLimTotal/(FileLimNow-FileLimStart))/
	980	ShSuidchkFps) , 0);
	981	}
[1]	982
[131]	983	status = (int) retry_lstat(FIL__, __LINE__, tmpcat, &buf);
[1]	984
[131]	985	if (status != 0)
	986	{
	987	status = errno;
	988	tmp = sh_util_safe_name(tmpcat);
	989	sh_error_handle (SH_ERR_ERR, FIL__, __LINE__, status, MSG_ERR_LSTAT,
[132]	990	sh_error_message(status, errbuf, sizeof(errbuf)),
[131]	991	tmpcat );
	992	SH_FREE(tmp);
	993	}
	994	else
	995	{
	996	if (/@-usedef@/S_ISDIR(buf.st_mode)/@+usedef@/ &&
	997	(ShSuidchkExclude == NULL \|\|
	998	0 != strcmp(tmpcat, ShSuidchkExclude)))
	999	{
	1000	/* fs is a STATIC string or NULL
	1001	*/
	1002	fs = filesystem_type (tmpcat, tmpcat, &buf);
	1003	if (fs != NULL
[30]	1004	#ifndef SH_SUIDTESTDIR
[131]	1005	&&
	1006	0 != strncmp (_("afs"), fs, 3) &&
	1007	0 != strncmp (_("devfs"), fs, 5) &&
[231]	1008	0 != strncmp (_("fdesc"), fs, 5) &&
[131]	1009	0 != strncmp (_("iso9660"), fs, 7) &&
[231]	1010	0 != strncmp (_("cd9660"), fs, 6) &&
[131]	1011	0 != strncmp (_("lustre"), fs, 6) &&
	1012	0 != strncmp (_("mmfs"), fs, 4) &&
	1013	0 != strncmp (_("msdos"), fs, 5) &&
	1014	0 != strncmp (_("nfs"), fs, 3) &&
	1015	0 != strncmp (_("proc"), fs, 4) &&
[231]	1016	0 != strncmp (_("sysfs"), fs, 5) &&
[131]	1017	0 != strncmp (_("vfat"), fs, 4)
[30]	1018	#endif
[131]	1019	)
	1020	{
	1021	if ((ShSuidchkNosuid == S_TRUE) \|\|
	1022	(0 != strncmp (_("nosuid"), fs, 6)))
	1023	/* fprintf(stderr, "%s: %s\n", fs, tmpcat); */
	1024	(void) sh_suidchk_check_internal(tmpcat);
	1025	}
	1026	}
	1027	else if (S_ISREG(buf.st_mode) &&
	1028	(0 !=(S_ISUID & buf.st_mode) \|\|
[1]	1029	#if defined(HOST_IS_LINUX)
[131]	1030	(0 !=(S_ISGID & buf.st_mode) &&
	1031	0 !=(S_IXGRP & buf.st_mode))
[1]	1032	#else
[131]	1033	0 !=(S_ISGID & buf.st_mode)
[1]	1034	#endif
[131]	1035	)
	1036	)
	1037	{
[227]	1038	theFile = SH_ALLOC(sizeof(file_type));
	1039
	1040	(void) sl_strlcpy (theFile->fullpath, tmpcat, PATH_MAX);
	1041	theFile->check_mask = sh_files_maskof(SH_LEVEL_READONLY);
	1042	CLEAR_SH_FFLAG_REPORTED(theFile->file_reported);
	1043	theFile->attr_string = NULL;
	1044	theFile->link_path = NULL;
[131]	1045
	1046	status = sh_unix_getinfo (ShDFLevel[SH_ERR_T_RO],
[138]	1047	dirlist->sh_d_name,
[227]	1048	theFile, fileHash, 0);
[131]	1049
	1050	tmp = sh_util_safe_name(tmpcat);
	1051
	1052	if (status != 0)
	1053	{
	1054	sh_error_handle (ShSuidchkSeverity, FIL__, __LINE__,
	1055	0, MSG_E_SUBGPATH,
	1056	_("Could not check suid/sgid file"),
	1057	_("sh_suidchk_check_internal"),
	1058	tmp);
	1059	}
	1060	else
	1061	{
	1062
	1063	if ( sh.flag.update == S_TRUE &&
	1064	(sh.flag.checkSum == SH_CHECK_INIT \|\|
	1065	sh.flag.checkSum == SH_CHECK_CHECK))
	1066	{
	1067	/* Updating database. Report new files that
	1068	* are not in database already. Then compare
	1069	* to database and report changes.
	1070	*/
	1071	if (-1 == sh_hash_have_it (tmpcat))
	1072	{
	1073	sh_error_handle ((-1), FIL__, __LINE__,
	1074	0, MSG_SUID_FOUND, tmp );
	1075	}
	1076	else
	1077	{
	1078	sh_error_handle (SH_ERR_ALL, FIL__, __LINE__,
	1079	0, MSG_SUID_FOUND, tmp );
	1080	}
	1081
	1082	if (0 == sh_hash_compdata (SH_LEVEL_READONLY,
[227]	1083	theFile, fileHash,
[131]	1084	_("[SuidCheck]"),
	1085	ShSuidchkSeverity))
	1086	{
[227]	1087	sh_hash_pushdata_memory (theFile, fileHash);
[131]	1088	}
	1089
	1090	sh_hash_addflag(tmpcat, SH_FFLAG_SUIDCHK);
	1091
	1092	}
	1093
	1094	else if (sh.flag.checkSum == SH_CHECK_INIT &&
	1095	sh.flag.update == S_FALSE )
	1096	{
	1097	/* Running init. Report on files detected.
	1098	*/
[227]	1099	sh_hash_pushdata (theFile, fileHash);
[131]	1100	sh_error_handle ((-1), FIL__, __LINE__,
	1101	0, MSG_SUID_FOUND, tmp );
	1102	}
	1103
	1104	else if (sh.flag.checkSum == SH_CHECK_CHECK )
	1105	{
	1106	/* Running file check. Report on new files
	1107	* detected, and quarantine them.
	1108	*/
	1109	sh_error_handle (SH_ERR_ALL, FIL__, __LINE__,
	1110	0, MSG_SUID_FOUND, tmp );
	1111
	1112	fflags = sh_hash_getflags(tmpcat);
	1113
	1114	if ( (-1 == fflags) \|\| (!SH_FFLAG_SUIDCHK_SET(fflags)))
	1115	{
	1116	if (-1 == fflags)
[132]	1117	{
[227]	1118	(void) sh_unix_gmttime (theFile->ctime, timestrc, sizeof(timestrc));
	1119	(void) sh_unix_gmttime (theFile->atime, timestra, sizeof(timestra));
	1120	(void) sh_unix_gmttime (theFile->mtime, timestrm, sizeof(timestrm));
[132]	1121
[227]	1122	report_file(tmpcat, theFile, timestrc, timestra, timestrm);
[132]	1123	}
[131]	1124	/* Quarantine file according to configured method
	1125	*/
	1126	if (ShSuidchkQEnable == S_TRUE)
	1127	{
	1128	switch (ShSuidchkQMethod)
	1129	{
	1130	case SH_Q_DELETE:
[227]	1131	sh_q_delete(theFile->fullpath);
[131]	1132	break;
	1133	case SH_Q_CHANGEPERM:
[227]	1134	sh_q_changeperm(theFile->fullpath);
[131]	1135	break;
	1136	case SH_Q_MOVE:
[227]	1137	sh_q_move(theFile->fullpath, theFile, timestrc, timestra, timestrm);
[131]	1138	break;
	1139	default:
	1140	sh_error_handle (ShSuidchkSeverity, FIL__,
	1141	__LINE__, 0, MSG_SUID_QREPORT,
	1142	_("Bad quarantine method"), tmp);
	1143	break;
	1144	}
	1145	}
	1146	else
	1147	{
	1148	/* 1.8.1 push file to in-memory database
	1149	*/
	1150	(void) sh_hash_compdata (SH_LEVEL_READONLY,
[227]	1151	theFile, fileHash,
[131]	1152	_("[SuidCheck]"),
	1153	ShSuidchkSeverity);
	1154
	1155	sh_hash_addflag(tmpcat, SH_FFLAG_SUIDCHK);
	1156
	1157	}
	1158	}
	1159	else
	1160	{
	1161	/* File exists. Check for modifications.
	1162	*/
	1163	(void) sh_hash_compdata (SH_LEVEL_READONLY,
[227]	1164	theFile, fileHash,
[131]	1165	_("[SuidCheck]"),
	1166	ShSuidchkSeverity);
	1167
	1168	sh_hash_addflag(tmpcat, SH_FFLAG_SUIDCHK);
	1169
	1170	}
	1171	}
	1172	}
	1173	SH_FREE(tmp);
[227]	1174	if (theFile->attr_string) SH_FREE(theFile->attr_string);
	1175	if (theFile->link_path) SH_FREE(theFile->link_path);
	1176	SH_FREE(theFile);
[131]	1177	}
	1178	}
	1179	SH_FREE(tmpcat);
[115]	1180
[131]	1181
[1]	1182	#ifdef HAVE_SCHED_YIELD
	1183	if (ShSuidchkYield == S_TRUE)
	1184	{
	1185	if (sched_yield() == -1)
	1186	{
	1187	status = errno;
	1188	sh_error_handle ((-1), FIL__, __LINE__, status, MSG_E_SUBGEN,
[131]	1189	_("Failed to release time slice"),
[1]	1190	_("sh_suidchk_check_internal") );
	1191	}
	1192	}
	1193	#endif
[131]	1194
	1195	dirlist = dirlist->next;
[68]	1196
[131]	1197	} while (dirlist != NULL);
[1]	1198
[131]	1199
	1200	kill_sh_dirlist (dirlist_orig);
	1201
[1]	1202	SL_RETURN( (0), _("sh_suidchk_check_internal"));
	1203	}
	1204
	1205	/*************
	1206	*
	1207	* module init
	1208	*
	1209	*************/
[140]	1210	int sh_suidchk_init (struct mod_type * arg)
[1]	1211	{
[140]	1212	(void) arg;
[1]	1213	if (ShSuidchkActive == S_FALSE)
	1214	return (-1);
	1215
	1216	return (0);
	1217	}
	1218
	1219
	1220	/*************
	1221	*
	1222	* module cleanup
	1223	*
	1224	*************/
	1225	int sh_suidchk_end ()
	1226	{
	1227	return (0);
	1228	}
	1229
	1230
	1231	/*************
	1232	*
	1233	* module timer
	1234	*
	1235	*************/
	1236	int sh_suidchk_timer (time_t tcurrent)
	1237	{
	1238	if (sh.flag.checkSum == SH_CHECK_INIT)
	1239	return -1;
	1240
	1241	/* One-shot (not daemon and not loop forever)
	1242	*/
	1243	if (sh.flag.isdaemon != S_TRUE && sh.flag.loop == S_FALSE)
	1244	return -1;
	1245
	1246	if (ShSuidchkSched != NULL)
	1247	{
	1248	return test_sched(ShSuidchkSched);
	1249	}
	1250	if ((time_t) (tcurrent - lastcheck) >= ShSuidchkInterval)
	1251	{
	1252	lastcheck = tcurrent;
	1253	return (-1);
	1254	}
	1255	return 0;
	1256	}
	1257
	1258	/*************
	1259	*
	1260	* module check
	1261	*
	1262	*************/
	1263
	1264	int sh_suidchk_check ()
	1265	{
	1266	int status;
	1267
	1268	SL_ENTER(_("sh_suidchk_check"));
	1269
	1270	sh_error_handle (SH_ERR_NOTICE, FIL__, __LINE__, EINVAL, MSG_E_SUBGEN,
	1271	_("Checking for SUID programs"),
	1272	_("suidchk_check") );
	1273
	1274	FileLimNow = time(NULL);
	1275	FileLimStart = FileLimNow;
	1276	FileLimNum = 0;
	1277	FileLimTotal = 0;
	1278
[22]	1279	#ifdef SH_SUIDTESTDIR
	1280	status = sh_suidchk_check_internal (SH_SUIDTESTDIR);
	1281	#else
[1]	1282	status = sh_suidchk_check_internal ("/");
[22]	1283	#endif
[1]	1284
	1285	sh_error_handle ((-1), FIL__, __LINE__, EINVAL, MSG_SUID_SUMMARY,
	1286	FileLimTotal,
	1287	(long) (time(NULL) - FileLimStart) );
	1288
	1289	SL_RETURN(status, _("sh_suidchk_check"));
	1290	}
	1291
	1292	/*************
	1293	*
	1294	* module setup
	1295	*
	1296	*************/
	1297
[68]	1298	int sh_suidchk_set_severity (const char * c)
[1]	1299	{
	1300	int retval;
	1301	char tmp[32];
	1302
	1303	SL_ENTER(_("sh_suidchk_set_severity"));
	1304	tmp[0] = '='; tmp[1] = '\0';
	1305	(void) sl_strlcat (tmp, c, 32);
	1306	retval = sh_error_set_level (tmp, &ShSuidchkSeverity);
	1307	SL_RETURN(retval, _("sh_suidchk_set_severity"));
	1308	}
	1309
[68]	1310	int sh_suidchk_set_exclude (const char * c)
[1]	1311	{
	1312	SL_ENTER(_("sh_suidchk_set_exclude"));
[68]	1313
[1]	1314	if (c == NULL \|\| c[0] == '\0')
	1315	{
	1316	SL_RETURN(-1, _("sh_suidchk_set_exclude"));
	1317	}
	1318
	1319	if (0 == sl_strncmp(c, _("NULL"), 4))
	1320	{
	1321	if (ShSuidchkExclude != NULL)
	1322	SH_FREE(ShSuidchkExclude);
	1323	ShSuidchkExclude = NULL;
	1324	SL_RETURN(0, _("sh_suidchk_set_exclude"));
	1325	}
	1326
	1327	if (ShSuidchkExclude != NULL)
	1328	SH_FREE(ShSuidchkExclude);
	1329
[68]	1330	ShSuidchkExclude = sh_util_strdup (c);
	1331	ExcludeLen = sl_strlen (ShSuidchkExclude);
	1332	if (ShSuidchkExclude[ExcludeLen-1] == '/')
[1]	1333	{
[68]	1334	ShSuidchkExclude[ExcludeLen-1] = '\0';
[55]	1335	ExcludeLen--;
[1]	1336	}
	1337	SL_RETURN(0, _("sh_suidchk_set_exclude"));
	1338	}
	1339
[68]	1340	int sh_suidchk_set_timer (const char * c)
[1]	1341	{
	1342	long val;
	1343
	1344	SL_ENTER(_("sh_suidchk_set_timer"));
	1345
	1346	val = strtol (c, (char **)NULL, 10);
	1347	if (val <= 0)
	1348	sh_error_handle ((-1), FIL__, __LINE__, EINVAL, MSG_EINVALS,
	1349	_("suidchk timer"), c);
	1350
	1351	val = (val <= 0 ? 7200 : val);
	1352
	1353	ShSuidchkInterval = (time_t) val;
	1354	SL_RETURN( 0, _("sh_suidchk_set_timer"));
	1355	}
	1356
	1357
[170]	1358	static void sh_suidchk_free_schedule (void)
[1]	1359	{
	1360	sh_schedule_t * current = ShSuidchkSched;
	1361	sh_schedule_t * next = NULL;
	1362
	1363	while (current != NULL)
	1364	{
	1365	next = current->next;
	1366	SH_FREE(current);
	1367	current = next;
	1368	}
	1369	ShSuidchkSched = NULL;
[149]	1370	return;
[1]	1371	}
	1372
[149]	1373	int sh_suidchk_reconf ()
	1374	{
	1375	sh_suidchk_free_schedule();
	1376	set_defaults();
[150]	1377	return 0;
[149]	1378	}
	1379
[68]	1380	int sh_suidchk_set_schedule (const char * str)
[1]	1381	{
	1382	int status;
	1383	sh_schedule_t * newSched = NULL;
	1384
	1385	SL_ENTER(_("sh_suidchk_set_schedule"));
	1386
	1387	/*
	1388	if (ShSuidchkSched != NULL)
	1389	{
	1390	SH_FREE(ShSuidchkSched);
	1391	ShSuidchkSched = NULL;
	1392	}
	1393	*/
	1394
	1395	if (0 == sl_strncmp(str, _("NULL"), 4))
	1396	{
	1397	(void) sh_suidchk_free_schedule ();
	1398	return 0;
	1399	}
	1400
	1401	newSched = SH_ALLOC(sizeof(sh_schedule_t));
	1402	status = create_sched(str, newSched);
	1403	if (status != 0)
	1404	{
	1405	SH_FREE(newSched);
	1406	newSched = NULL;
	1407	}
	1408	else
	1409	{
	1410	newSched->next = ShSuidchkSched;
	1411	ShSuidchkSched = newSched;
	1412	}
	1413	SL_RETURN( status, _("sh_suidchk_set_schedule"));
	1414	}
	1415
	1416
	1417
[68]	1418	int sh_suidchk_set_fps (const char * c)
[1]	1419	{
	1420	long val;
	1421
	1422	SL_ENTER(_("sh_suidchk_set_fps"));
	1423
	1424	val = strtol (c, (char **)NULL, 10);
	1425	if (val < 0)
	1426	sh_error_handle ((-1), FIL__, __LINE__, EINVAL, MSG_EINVALS,
	1427	_("suidchk fps"), c);
	1428
	1429	val = (val < 0 ? 0 : val);
	1430
	1431	ShSuidchkFps = val;
	1432	SL_RETURN( 0, _("sh_suidchk_set_fps"));
	1433	}
	1434
[68]	1435	int sh_suidchk_set_yield (const char * c)
[1]	1436	{
	1437	int i;
	1438	SL_ENTER(_("sh_suidchk_set_yield"));
	1439	#ifdef HAVE_SCHED_YIELD
	1440	i = sh_util_flagval(c, &ShSuidchkYield);
	1441	#else
	1442	(void) c; /* cast to void to avoid compiler warning */
	1443	i = -1;
	1444	#endif
	1445	SL_RETURN(i, _("sh_suidchk_set_yield"));
	1446	}
	1447
[68]	1448	int sh_suidchk_set_activate (const char * c)
[1]	1449	{
	1450	int i;
	1451	SL_ENTER(_("sh_suidchk_set_activate"));
	1452	i = sh_util_flagval(c, &ShSuidchkActive);
	1453	SL_RETURN(i, _("sh_suidchk_set_activate"));
	1454	}
	1455
[119]	1456	int sh_suidchk_set_nosuid (const char * c)
	1457	{
	1458	int i;
	1459	SL_ENTER(_("sh_suidchk_set_nosuid"));
	1460	i = sh_util_flagval(c, &ShSuidchkNosuid);
	1461	SL_RETURN(i, _("sh_suidchk_set_nosuid"));
	1462	}
	1463
[68]	1464	int sh_suidchk_set_quarantine (const char * c)
[1]	1465	{
	1466	int i;
	1467	SL_ENTER(_("sh_suidchk_set_quarantine"));
	1468	i = sh_util_flagval(c, &ShSuidchkQEnable);
	1469	SL_RETURN(i, _("sh_suidchk_set_quarantine"));
	1470	}
	1471
[68]	1472	int sh_suidchk_set_qdelete (const char * c)
[1]	1473	{
	1474	int i;
	1475	SL_ENTER(_("sh_suidchk_set_qdelete"));
	1476	i = sh_util_flagval(c, &ShSuidchkQDelete);
	1477	SL_RETURN(i, _("sh_suidchk_set_qdelete"));
	1478	}
	1479
[68]	1480	int sh_suidchk_set_qmethod (const char * c)
[1]	1481	{
	1482	long val;
	1483	int ret = 0;
[22]	1484	struct stat buf;
[1]	1485
	1486	SL_ENTER(_("sh_suidchk_set_qmethod"));
	1487
	1488	val = strtol (c, (char **)NULL, 10);
	1489	if (val < 0)
	1490	{
	1491	sh_error_handle ((-1), FIL__, __LINE__, EINVAL, MSG_EINVALS,
	1492	_("suidchk qmethod"), c);
	1493	ret = -1;
	1494	}
	1495	else
	1496	{
	1497	switch (val)
	1498	{
	1499	case SH_Q_DELETE:
	1500	ShSuidchkQMethod = SH_Q_DELETE;
	1501	break;
	1502	case SH_Q_CHANGEPERM:
	1503	ShSuidchkQMethod = SH_Q_CHANGEPERM;
	1504	break;
	1505	case SH_Q_MOVE:
[22]	1506	if (retry_stat (FIL__, __LINE__, DEFAULT_QDIR, &buf) != 0)
[1]	1507	{
	1508	if (mkdir (DEFAULT_QDIR, 0750) == -1)
	1509	{
	1510	sh_error_handle ((-1), FIL__, __LINE__, EINVAL,
	1511	MSG_SUID_ERROR,
	1512	_("Unable to create quarantine directory"));
	1513	}
	1514	}
	1515	ShSuidchkQMethod = SH_Q_MOVE;
	1516	break;
	1517	default:
	1518	sh_error_handle ((-1), FIL__, __LINE__, EINVAL, MSG_EINVALS,
	1519	_("suidchk qmethod"), c);
	1520	ShSuidchkQMethod = -1;
	1521	ret = -1;
	1522	break;
	1523	}
	1524	}
	1525
	1526	SL_RETURN( ret, _("sh_suidchk_set_qmethod"));
	1527	}
	1528
	1529	#if defined(FSTYPE_STATFS) \|\| defined(FSTYPE_AIX_STATFS)
	1530	/* dirname.c -- return all but the last element in a path
	1531	Copyright (C) 1990 Free Software Foundation, Inc.
	1532
	1533	This program is free software; you can redistribute it and/or modify
	1534	it under the terms of the GNU General Public License as published by
	1535	the Free Software Foundation; either version 2, or (at your option)
	1536	any later version.
	1537
	1538	This program is distributed in the hope that it will be useful,
	1539	but WITHOUT ANY WARRANTY; without even the implied warranty of
	1540	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
	1541	GNU General Public License for more details.
	1542
	1543	You should have received a copy of the GNU General Public License
	1544	along with this program; if not, write to the Free Software Foundation,
	1545	Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
	1546
	1547	/* Return the leading directories part of PATH,
	1548	allocated with malloc. If out of memory, return 0.
	1549	Assumes that trailing slashes have already been
	1550	removed. */
	1551
	1552	char * sh_dirname (const char * path)
	1553	{
	1554	char *newpath;
	1555	char *slash;
	1556	int length; /* Length of result, not including NUL. */
	1557
	1558	slash = strrchr (path, '/');
	1559	if (slash == NULL)
	1560	{
	1561	/* File is in the current directory. */
	1562	path = ".";
	1563	length = 1;
	1564	}
	1565	else
	1566	{
	1567	/* Remove any trailing slashes from the result. */
	1568	while (slash > path && *slash == '/')
	1569	--slash;
	1570
	1571	length = slash - path + 1;
	1572	}
	1573	newpath = (char *) SH_ALLOC (length + 1);
	1574	if (newpath == NULL)
	1575	return NULL;
	1576	strncpy (newpath, path, length);
	1577	newpath[length] = '\0';
	1578	return newpath;
	1579	}
	1580	/* #ifdef FSTYPE_STATFS */
	1581	#endif
	1582
	1583	/* fstype.c -- determine type of filesystems that files are on
	1584	Copyright (C) 1990, 91, 92, 93, 94 Free Software Foundation, Inc.
	1585
	1586	This program is free software; you can redistribute it and/or modify
	1587	it under the terms of the GNU General Public License as published by
	1588	the Free Software Foundation; either version 2, or (at your option)
	1589	any later version.
	1590
	1591	This program is distributed in the hope that it will be useful,
	1592	but WITHOUT ANY WARRANTY; without even the implied warranty of
	1593	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
	1594	GNU General Public License for more details.
	1595
	1596	You should have received a copy of the GNU General Public License
	1597	along with this program; if not, write to the Free Software
	1598	Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */
	1599
	1600	/* Written by David MacKenzie <djm@gnu.ai.mit.edu>. */
	1601
	1602	/* Modified by R. Wichmann:
	1603	- replaced error() by sh_error_handle()
	1604	- replaced xstrdup() by sl_strdup()
	1605	- replaced strstr() by sl_strstr()
	1606	- some additions to recognize nosuid fs
	1607	*/
	1608
	1609	/* modetype.h -- file type bits definitions for POSIX systems
	1610	Requires sys/types.h sys/stat.h.
	1611	Copyright (C) 1990 Free Software Foundation, Inc.
	1612
	1613	This program is free software; you can redistribute it and/or modify
	1614	it under the terms of the GNU General Public License as published by
	1615	the Free Software Foundation; either version 2, or (at your option)
	1616	any later version.
	1617
	1618	This program is distributed in the hope that it will be useful,
	1619	but WITHOUT ANY WARRANTY; without even the implied warranty of
	1620	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
	1621	GNU General Public License for more details.
	1622
	1623	You should have received a copy of the GNU General Public License
	1624	along with this program; if not, write to the Free Software
	1625	Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */
	1626
	1627	/* POSIX.1 doesn't mention the S_IFMT bits; instead, it uses S_IStype
	1628	test macros. To make storing file types more convenient, define
	1629	them; the values don't need to correspond to what the kernel uses,
	1630	because of the way we use them. */
	1631	#ifndef S_IFMT /* Doesn't have traditional Unix macros. */
	1632	#define S_IFBLK 1
	1633	#define S_IFCHR 2
	1634	#define S_IFDIR 4
	1635	#define S_IFREG 8
	1636	#ifdef S_ISLNK
	1637	#define S_IFLNK 16
	1638	#endif
	1639	#ifdef S_ISFIFO
	1640	#define S_IFIFO 32
	1641	#endif
	1642	#ifdef S_ISSOCK
	1643	#define S_IFSOCK 64
	1644	#endif
	1645	#endif /* !S_IFMT */
	1646
	1647	#ifdef STAT_MACROS_BROKEN
	1648	#undef S_ISBLK
	1649	#undef S_ISCHR
	1650	#undef S_ISDIR
	1651	#undef S_ISREG
	1652	#undef S_ISFIFO
	1653	#undef S_ISLNK
	1654	#undef S_ISSOCK
	1655	#undef S_ISMPB
	1656	#undef S_ISMPC
	1657	#undef S_ISNWK
	1658	#endif
	1659
	1660	/* Do the reverse: define the POSIX.1 macros for traditional Unix systems
	1661	that don't have them. */
	1662	#if !defined(S_ISBLK) && defined(S_IFBLK)
	1663	#define S_ISBLK(m) (((m) & S_IFMT) == S_IFBLK)
	1664	#endif
	1665	#if !defined(S_ISCHR) && defined(S_IFCHR)
	1666	#define S_ISCHR(m) (((m) & S_IFMT) == S_IFCHR)
	1667	#endif
	1668	#if !defined(S_ISDIR) && defined(S_IFDIR)
	1669	#define S_ISDIR(m) (((m) & S_IFMT) == S_IFDIR)
	1670	#endif
	1671	#if !defined(S_ISREG) && defined(S_IFREG)
	1672	#define S_ISREG(m) (((m) & S_IFMT) == S_IFREG)
	1673	#endif
	1674	#if !defined(S_ISFIFO) && defined(S_IFIFO)
	1675	#define S_ISFIFO(m) (((m) & S_IFMT) == S_IFIFO)
	1676	#endif
	1677	#if !defined(S_ISLNK) && defined(S_IFLNK)
	1678	#define S_ISLNK(m) (((m) & S_IFMT) == S_IFLNK)
	1679	#endif
	1680	#if !defined(S_ISSOCK) && defined(S_IFSOCK)
	1681	#define S_ISSOCK(m) (((m) & S_IFMT) == S_IFSOCK)
	1682	#endif
	1683	#if !defined(S_ISMPB) && defined(S_IFMPB) /* V7 */
	1684	#define S_ISMPB(m) (((m) & S_IFMT) == S_IFMPB)
	1685	#define S_ISMPC(m) (((m) & S_IFMT) == S_IFMPC)
	1686	#endif
	1687	#if !defined(S_ISNWK) && defined(S_IFNWK) /* HP/UX */
	1688	#define S_ISNWK(m) (((m) & S_IFMT) == S_IFNWK)
	1689	#endif
	1690
	1691
	1692	static char filesystem_type_uncached (char path, char *relpath,
	1693	struct stat *statp);
	1694
	1695	#ifdef FSTYPE_MNTENT /* 4.3BSD etc. */
[199]	1696	static int xatoi (const char *cp);
[1]	1697	#endif
	1698
	1699	#ifdef FSTYPE_MNTENT /* 4.3BSD, SunOS, HP-UX, Dynix, Irix. */
	1700	#include <mntent.h>
	1701	#if !defined(MOUNTED)
	1702	# if defined(MNT_MNTTAB) /* HP-UX. */
	1703	# define MOUNTED MNT_MNTTAB
	1704	# endif
	1705	# if defined(MNTTABNAME) /* Dynix. */
	1706	# define MOUNTED MNTTABNAME
	1707	# endif
	1708	#endif
	1709	#endif
	1710
	1711	#ifdef FSTYPE_GETMNT /* Ultrix. */
	1712	#include <sys/param.h>
	1713	#include <sys/mount.h>
	1714	#include <sys/fs_types.h>
	1715	#endif
	1716
	1717	#ifdef FSTYPE_USG_STATFS /* SVR3. */
	1718	#include <sys/statfs.h>
	1719	#include <sys/fstyp.h>
	1720	#endif
	1721
	1722	#ifdef FSTYPE_STATVFS /* SVR4. */
	1723	#include <sys/statvfs.h>
	1724	#include <sys/fstyp.h>
	1725	#endif
	1726
	1727	#ifdef FSTYPE_STATFS /* 4.4BSD. */
	1728	#include <sys/param.h> /* NetBSD needs this. */
	1729	#include <sys/mount.h>
	1730
	1731	#ifndef MFSNAMELEN /* NetBSD defines this. */
	1732	static char *
	1733	fstype_to_string (t)
	1734	short t;
	1735	{
	1736	#ifdef INITMOUNTNAMES /* Defined in 4.4BSD, not in NET/2. */
	1737	static char *mn[] = INITMOUNTNAMES;
	1738	if (t >= 0 && t <= MOUNT_MAXTYPE)
	1739	return mn[t];
	1740	else
	1741	return "?";
	1742	#else /* !INITMOUNTNAMES */
	1743	switch (t)
	1744	{
[231]	1745	#ifdef MOUNT_UFS
[1]	1746	case MOUNT_UFS:
	1747	return _("ufs");
[231]	1748	#endif
	1749	#ifdef MOUNT_ISO9660
	1750	case MOUNT_ISO9660:
	1751	return _("iso9660fs");
	1752	#endif
	1753	#ifdef MOUNT_CD9660
	1754	case MOUNT_CD9660:
	1755	return _("cd9660");
	1756	#endif
	1757	#ifdef MOUNT_NFS
[1]	1758	case MOUNT_NFS:
	1759	return _("nfs");
[231]	1760	#endif
[1]	1761	#ifdef MOUNT_PC
	1762	case MOUNT_PC:
	1763	return _("pc");
	1764	#endif
	1765	#ifdef MOUNT_MFS
	1766	case MOUNT_MFS:
	1767	return _("mfs");
	1768	#endif
	1769	#ifdef MOUNT_LO
	1770	case MOUNT_LO:
	1771	return _("lofs");
	1772	#endif
	1773	#ifdef MOUNT_TFS
	1774	case MOUNT_TFS:
	1775	return _("tfs");
	1776	#endif
	1777	#ifdef MOUNT_TMP
	1778	case MOUNT_TMP:
	1779	return _("tmp");
	1780	#endif
	1781	#ifdef MOUNT_MSDOS
	1782	case MOUNT_MSDOS:
	1783	return _("msdos");
	1784	#endif
[231]	1785	#ifdef MOUNT_LFS
	1786	case MOUNT_LFS:
	1787	return _("lfs");
[1]	1788	#endif
[231]	1789	#ifdef MOUNT_LOFS
	1790	case MOUNT_LOFS:
	1791	return _("lofs");
	1792	#endif
	1793	#ifdef MOUNT_FDESC
	1794	case MOUNT_FDESC:
	1795	return _("fdesc");
	1796	#endif
	1797	#ifdef MOUNT_PORTAL
	1798	case MOUNT_PORTAL:
	1799	return _("portal");
	1800	#endif
	1801	#ifdef MOUNT_NULL
	1802	case MOUNT_NULL:
	1803	return _("null");
	1804	#endif
	1805	#ifdef MOUNT_UMAP
	1806	case MOUNT_UMAP:
	1807	return _("umap");
	1808	#endif
	1809	#ifdef MOUNT_KERNFS
	1810	case MOUNT_KERNFS:
	1811	return _("kernfs");
	1812	#endif
	1813	#ifdef MOUNT_PROCFS
	1814	case MOUNT_PROCFS:
	1815	return _("procfs");
	1816	#endif
	1817	#ifdef MOUNT_DEVFS
	1818	case MOUNT_DEVFS:
	1819	return _("devfs");
	1820	#endif
	1821	#ifdef MOUNT_EXT2FS
	1822	case MOUNT_EXT2FS:
	1823	return _("ext2fs");
	1824	#endif
	1825	#ifdef MOUNT_UNION
	1826	case MOUNT_UNION:
	1827	return _("union");
	1828	#endif
[1]	1829	default:
	1830	return "?";
	1831	}
	1832	#endif /* !INITMOUNTNAMES */
	1833	}
	1834	#endif /* !MFSNAMELEN */
	1835	#endif /* FSTYPE_STATFS */
	1836
	1837	#ifdef FSTYPE_AIX_STATFS /* AIX. */
	1838	#include <sys/vmount.h>
	1839	#include <sys/statfs.h>
	1840
	1841	#define FSTYPE_STATFS /* Otherwise like 4.4BSD. */
	1842	#define f_type f_vfstype
	1843
	1844	static char *
	1845	fstype_to_string (t)
	1846	short t;
	1847	{
	1848	switch (t)
	1849	{
	1850	case MNT_AIX:
	1851	return _("aix"); /* AIX 4.3: NFS filesystems are actually MNT_AIX. */
	1852	#ifdef MNT_NAMEFS
	1853	case MNT_NAMEFS:
	1854	return _("namefs");
	1855	#endif
	1856	case MNT_NFS:
	1857	return _("nfs");
	1858	case MNT_JFS:
	1859	return _("jfs");
	1860	case MNT_CDROM:
	1861	return _("cdrom");
	1862	#ifdef MNT_PROCFS
	1863	case MNT_PROCFS:
	1864	return _("procfs");
	1865	#endif
	1866	#ifdef MNT_SFS
	1867	case MNT_SFS:
	1868	return _("sfs");
	1869	#endif
	1870	#ifdef MNT_CACHEFS
	1871	case MNT_CACHEFS:
	1872	return _("cachefs");
	1873	#endif
	1874	#ifdef MNT_NFS3
	1875	case MNT_NFS3:
	1876	return _("nfs3");
	1877	#endif
	1878	#ifdef MNT_AUTOFS
	1879	case MNT_AUTOFS:
	1880	return _("autofs");
	1881	#endif
	1882	#ifdef MNT_VXFS
	1883	case MNT_VXFS:
	1884	return _("vxfs");
	1885	#endif
	1886	#ifdef MNT_VXODM
	1887	case MNT_VXODM:
	1888	return _("veritasfs");
	1889	#endif
	1890	#ifdef MNT_UDF
	1891	case MNT_UDF:
	1892	return _("udfs");
	1893	#endif
	1894	#ifdef MNT_NFS4
	1895	case MNT_NFS4:
	1896	return _("nfs4");
	1897	#endif
	1898	#ifdef MNT_RFS4
	1899	case MNT_RFS4:
	1900	return _("nfs4");
	1901	#endif
	1902	#ifdef MNT_CIFS
	1903	case MNT_CIFS:
	1904	return _("cifs");
	1905	#endif
	1906	default:
	1907	return "?";
	1908	}
	1909	}
	1910	#endif /* FSTYPE_AIX_STATFS */
	1911
	1912	#ifdef AFS
	1913	#include <netinet/in.h>
	1914	#include <afs/venus.h>
	1915	#if __STDC__
	1916	/* On SunOS 4, afs/vice.h defines this to rely on a pre-ANSI cpp. */
	1917	#undef _VICEIOCTL
	1918	#define _VICEIOCTL(id) ((unsigned int ) _IOW('V', id, struct ViceIoctl))
	1919	#endif
	1920	#ifndef _IOW
	1921	/* AFS on Solaris 2.3 doesn't get this definition. */
	1922	#include <sys/ioccom.h>
	1923	#endif
	1924
	1925	static int
	1926	in_afs (path)
	1927	char *path;
	1928	{
	1929	static char space[2048];
	1930	struct ViceIoctl vi;
	1931
	1932	vi.in_size = 0;
	1933	vi.out_size = sizeof (space);
	1934	vi.out = space;
	1935
	1936	if (pioctl (path, VIOC_FILE_CELL_NAME, &vi, 1)
	1937	&& (errno == EINVAL \|\| errno == ENOENT))
	1938	return 0;
	1939	return 1;
	1940	}
	1941	#endif /* AFS */
	1942
	1943	/* Nonzero if the current filesystem's type is known. */
	1944	static int fstype_known = 0;
	1945
	1946	/* Return a static string naming the type of filesystem that the file PATH,
	1947	described by STATP, is on.
	1948	RELPATH is the file name relative to the current directory.
	1949	Return "unknown" if its filesystem type is unknown. */
	1950
	1951	static char *
	1952	filesystem_type (char * path, char * relpath, struct stat * statp)
	1953	{
	1954	static char *current_fstype = NULL;
	1955	static dev_t current_dev;
	1956
	1957	if (current_fstype != NULL)
	1958	{
	1959	if ((0 != fstype_known) && statp->st_dev == current_dev)
	1960	return current_fstype; /* Cached value. */
	1961	SH_FREE (current_fstype);
	1962	}
	1963	current_dev = statp->st_dev;
	1964	current_fstype = filesystem_type_uncached (path, relpath, statp);
	1965	return current_fstype;
	1966	}
	1967
	1968	/* Return a newly allocated string naming the type of filesystem that the
	1969	file PATH, described by STATP, is on.
	1970	RELPATH is the file name relative to the current directory.
	1971	Return "unknown" if its filesystem type is unknown. */
	1972
	1973	static char *
	1974	filesystem_type_uncached (path, relpath, statp)
	1975	char *path;
	1976	char *relpath;
	1977	struct stat *statp;
	1978	{
	1979	char * type = NULL;
	1980	#ifdef MFSNAMELEN /* NetBSD. */
	1981	static char my_tmp_type[64];
	1982	#endif
	1983
	1984	#ifdef FSTYPE_MNTENT /* 4.3BSD, SunOS, HP-UX, Dynix, Irix. */
	1985	char *table = MOUNTED;
	1986	FILE *mfp;
	1987	struct mntent *mnt;
	1988
	1989	if (path == NULL \|\| relpath == NULL)
	1990	return NULL;
	1991
	1992	mfp = setmntent (table, "r");
	1993	if (mfp == NULL)
	1994	{
	1995	sh_error_handle ((-1), FIL__, __LINE__, 0, MSG_E_SUBGEN,
	1996	_("setmntent() failed"),
	1997	_("filesystem_type_uncached") );
	1998	return NULL;
	1999	}
	2000
	2001	/* Find the entry with the same device number as STATP, and return
	2002	that entry's fstype. */
	2003	while (type == NULL && (mnt = getmntent (mfp)) != NULL)
	2004	{
[199]	2005	const char *devopt;
[1]	2006	dev_t dev;
	2007	struct stat disk_stats;
	2008
	2009	#ifdef MNTTYPE_IGNORE
	2010	if (0 == strcmp (mnt->mnt_type, MNTTYPE_IGNORE))
	2011	continue;
	2012	#endif
	2013
	2014	/* Newer systems like SunOS 4.1 keep the dev number in the mtab,
	2015	in the options string. For older systems, we need to stat the
	2016	directory that the filesystem is mounted on to get it.
	2017
	2018	Unfortunately, the HPUX 9.x mnttab entries created by automountq
	2019	contain a dev= option but the option value does not match the
	2020	st_dev value of the file (maybe the lower 16 bits match?). */
	2021
	2022	#if !defined(hpux) && !defined(__hpux__)
	2023	devopt = sl_strstr (mnt->mnt_opts, "dev=");
	2024	if (devopt)
	2025	{
	2026	if (devopt[4] == '0' && (devopt[5] == 'x' \|\| devopt[5] == 'X'))
	2027	dev = (dev_t) xatoi (devopt + 6);
	2028	else
	2029	dev = (dev_t) xatoi (devopt + 4);
	2030	}
	2031	else
	2032	#endif /* not hpux */
	2033	{
	2034	if (stat (mnt->mnt_dir, &disk_stats) == -1)
	2035	{
	2036	sh_error_handle ((-1), FIL__, __LINE__, 0, MSG_E_SUBGEN,
	2037	_("stat() failed"),
	2038	_("filesystem_type_uncached") );
	2039	return NULL;
	2040	}
	2041	dev = disk_stats.st_dev;
	2042	}
	2043
	2044	if (dev == statp->st_dev)
	2045	{
	2046	/* check for the "nosuid" option
	2047	*/
[61]	2048	#ifdef HAVE_HASMNTOPT
[119]	2049	if (NULL == hasmntopt(mnt, "nosuid") \|\| (ShSuidchkNosuid == S_TRUE))
[1]	2050	type = mnt->mnt_type;
	2051	else
[61]	2052	type = _("nosuid"); /* hasmntopt (nosuid) */
	2053	#else
	2054	type = mnt->mnt_type;
	2055	#endif
[1]	2056	}
	2057	}
	2058
	2059	if (endmntent (mfp) == 0)
	2060	{
	2061	sh_error_handle ((-1), FIL__, __LINE__, 0, MSG_E_SUBGEN,
	2062	_("endmntent() failed"),
	2063	_("filesystem_type_uncached") );
	2064	}
	2065	#endif
	2066
	2067	#ifdef FSTYPE_GETMNT /* Ultrix. */
	2068	int offset = 0;
	2069	struct fs_data fsd;
	2070
	2071	if (path == NULL \|\| relpath == NULL)
	2072	return NULL;
	2073
	2074	while (type == NULL
	2075	&& getmnt (&offset, &fsd, sizeof (fsd), NOSTAT_MANY, 0) > 0)
	2076	{
	2077	if (fsd.fd_req.dev == statp->st_dev)
	2078	type = gt_names[fsd.fd_req.fstype];
	2079	}
	2080	#endif
	2081
	2082	#ifdef FSTYPE_USG_STATFS /* SVR3. */
	2083	struct statfs fss;
	2084	char typebuf[FSTYPSZ];
	2085
	2086	if (path == NULL \|\| relpath == NULL)
	2087	return NULL;
	2088
	2089	if (statfs (relpath, &fss, sizeof (struct statfs), 0) == -1)
	2090	{
	2091	/* Don't die if a file was just removed. */
	2092	if (errno != ENOENT)
	2093	{
	2094	sh_error_handle ((-1), FIL__, __LINE__, errno, MSG_E_SUBGEN,
	2095	_("statfs() failed"),
	2096	_("filesystem_type_uncached") );
	2097	return NULL;
	2098	}
	2099	}
	2100	else if (!sysfs (GETFSTYP, fss.f_fstyp, typebuf))
	2101	type = typebuf;
	2102	#endif
	2103
	2104	#ifdef FSTYPE_STATVFS /* SVR4. */
	2105	struct statvfs fss;
	2106
	2107	if (path == NULL \|\| relpath == NULL)
	2108	return NULL;
	2109
	2110	if (statvfs (relpath, &fss) == -1)
	2111	{
	2112	/* Don't die if a file was just removed. */
	2113	if (errno != ENOENT)
	2114	{
	2115	sh_error_handle ((-1), FIL__, __LINE__, errno, MSG_E_SUBGEN,
	2116	_("statvfs() failed"),
	2117	_("filesystem_type_uncached") );
	2118	return NULL;
	2119	}
	2120	}
	2121	else
	2122	{
	2123	type = fss.f_basetype;
	2124
	2125	/* patch by Konstantin Khrooschev <nathoo@co.ru>
	2126	*/
[119]	2127	if( (fss.f_flag & ST_NOSUID) && (ShSuidchkNosuid == S_FALSE))
[1]	2128	type = _("nosuid");
	2129	}
	2130	(void) statp; /* fix compiler warning */
	2131	#endif
	2132
	2133	#ifdef FSTYPE_STATFS /* 4.4BSD. */
	2134	struct statfs fss;
	2135	char *p;
	2136	#if defined(MNT_VISFLAGMASK) && defined(HAVE_STRUCT_STATFS_F_FLAGS)
	2137	int flags;
	2138	#endif
	2139	/* char * sh_dirname(const char path); /
	2140
	2141	if (path == NULL \|\| relpath == NULL)
	2142	return NULL;
	2143
	2144	if (S_ISLNK (statp->st_mode))
	2145	p = sh_dirname (relpath);
	2146	else
	2147	p = relpath;
	2148
	2149	if (statfs (p, &fss) == -1)
	2150	{
	2151	/* Don't die if symlink to nonexisting file, or a file that was
	2152	just removed. */
	2153	if (errno != ENOENT)
	2154	{
	2155	sh_error_handle ((-1), FIL__, __LINE__, errno, MSG_E_SUBGEN,
	2156	_("statfs() failed"),
	2157	_("filesystem_type_uncached") );
	2158	return NULL;
	2159	}
	2160	}
	2161	else
	2162	{
	2163
	2164	#ifdef MFSNAMELEN /* NetBSD. */
	2165	/* MEMORY LEAK !!!
	2166	* type = sh_util_strdup (fss.f_fstypename);
	2167	*/
	2168	sl_strlcpy (my_tmp_type, fss.f_fstypename, 64);
	2169	type = my_tmp_type;
	2170	#else
	2171	type = fstype_to_string (fss.f_type);
	2172	#endif
	2173
	2174	#ifdef HAVE_STRUCT_STATFS_F_FLAGS
	2175	#ifdef MNT_VISFLAGMASK
	2176	flags = fss.f_flags & MNT_VISFLAGMASK;
[119]	2177	if ((flags & MNT_NOSUID) && (ShSuidchkNosuid == S_FALSE))
[1]	2178	#else
[119]	2179	if ((fss.f_flags & MNT_NOSUID) && (ShSuidchkNosuid == S_FALSE))
[1]	2180	#endif
	2181	type = _("nosuid");
	2182	#endif
	2183	}
	2184	if (p != relpath)
	2185	SH_FREE (p);
	2186	#endif
	2187
	2188	#ifdef AFS
	2189	if ((!type \|\| !strcmp (type, "xx")) && in_afs (relpath))
	2190	type = "afs";
	2191	#endif
	2192
	2193	/* An unknown value can be caused by an ENOENT error condition.
	2194	Don't cache those values. */
	2195	fstype_known = (int)(type != NULL);
	2196
	2197	return sh_util_strdup (type ? type : "unknown");
	2198	}
	2199
	2200	#ifdef FSTYPE_MNTENT /* 4.3BSD etc. */
	2201	/* Return the value of the hexadecimal number represented by CP.
	2202	No prefix (like '0x') or suffix (like 'h') is expected to be
	2203	part of CP. */
	2204
	2205	static int
	2206	xatoi (cp)
[199]	2207	const char *cp;
[1]	2208	{
	2209	int val;
	2210
	2211	val = 0;
	2212	while (*cp != '\0')
	2213	{
	2214	/@+charint@/
	2215	if (cp >= 'a' && cp <= 'f')
	2216	val = val * 16 + *cp - 'a' + 10;
	2217	else if (cp >= 'A' && cp <= 'F')
	2218	val = val * 16 + *cp - 'A' + 10;
	2219	else if (cp >= '0' && cp <= '9')
	2220	val = val * 16 + *cp - '0';
	2221	else
	2222	break;
	2223	/@-charint@/
	2224	cp++;
	2225	}
	2226	return val;
	2227	}
	2228	#endif
	2229
	2230
	2231
	2232	#endif
	2233
	2234
	2235	/* #ifdef SH_USE_UTMP */
	2236	#endif
	2237
	2238
	2239

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