src/libstatgrab/tools.c

/*
 * i-scream central monitoring system
 * http://www.i-scream.org
 * Copyright (C) 2000-2004 i-scream
 * 
 * This library is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Lesser General Public
 * License as published by the Free Software Foundation; either
 * version 2.1 of the License, or (at your option) any later version.
 * 
 * This library is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 * Lesser General Public License for more details.
 * 
 * You should have received a copy of the GNU Lesser General Public
 * License along with this library; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
 * 02111-1307 USA
 *
 * $Id: tools.c,v 1.30 2004/02/14 13:43:37 ats Exp $
 */

#ifdef HAVE_CONFIG_H
#include "config.h"
#endif

#include <stdio.h>
#include <string.h>
#include <stdlib.h>
#include <unistd.h>
#include <sys/types.h>
#include <regex.h>
#ifdef ALLBSD
#include <fcntl.h>
#endif
#if defined(FREEBSD) || defined(DFBSD)
#include <kvm.h>
#endif
#if defined(NETBSD) || defined(OPENBSD)
#include <uvm/uvm_extern.h>
#include <sys/param.h>
#include <sys/sysctl.h>
#endif

#include "tools.h"

#ifdef SOLARIS
#ifdef HAVE_LIBDEVINFO_H
#include <libdevinfo.h>
#endif
#include <kstat.h>
#include <unistd.h>
#include <ctype.h>
#include <sys/types.h>
#include <sys/dkio.h>
#include <sys/stat.h>
#include <fcntl.h>
#include <sys/fcntl.h>
#include <dirent.h>
#endif

#if defined(SOLARIS) && defined(HAVE_LIBDEVINFO_H)
struct map{
        char *bsd;
        char *svr;

        struct map *next;
};
typedef struct map mapping_t;

static mapping_t *mapping = NULL; 
#endif

#ifdef SOLARIS
char *get_svr_from_bsd(char *bsd){
#ifdef HAVE_LIBDEVINFO_H
        mapping_t *map_ptr;
        for(map_ptr = mapping; map_ptr != NULL; map_ptr = map_ptr->next)
                if(!strcmp(map_ptr->bsd, bsd)) return map_ptr->svr;
#endif
        return bsd;
}
#endif

#if defined(SOLARIS) && defined(HAVE_LIBDEVINFO_H)
void add_mapping(char *bsd, char *svr){
        mapping_t *map_ptr;
        mapping_t *map_end_ptr;

        bsd = strdup(bsd);
        svr = strdup(svr);

        if (mapping == NULL){
                mapping = malloc(sizeof(mapping_t));
                if (mapping == NULL) return;
                map_ptr = mapping;
        }else{
                /* See if its already been added */
                for(map_ptr = mapping; map_ptr != NULL; map_ptr = map_ptr->next){
                        if( (!strcmp(map_ptr->bsd, bsd)) || (!strcmp(map_ptr->svr, svr)) ){
                                return;
                        }
                        map_end_ptr = map_ptr;
                }

                /* We've reached end of list and not found the entry.. So we need to malloc
                 * new mapping_t
                 */
                map_end_ptr->next = malloc(sizeof(mapping_t));
                if (map_end_ptr->next == NULL) return;
                map_ptr = map_end_ptr->next;
        }

        map_ptr->next = NULL;
        map_ptr->bsd = bsd;
        map_ptr->svr = svr;

        return;
}

char *read_dir(char *disk_path){
        DIR *dirp;
        struct dirent *dp;
        struct stat stbuf;
        char *svr_name;
        char current_dir[MAXPATHLEN];
        char file_name[MAXPATHLEN];
        char temp_name[MAXPATHLEN];
        char dir_dname[MAXPATHLEN];
        char *dsk_dir;
        int x;

        dsk_dir = "/dev/osa/dev/dsk";
        strncpy(current_dir, dsk_dir, sizeof current_dir);
        if ((dirp = opendir(current_dir)) == NULL){
                dsk_dir = "/dev/dsk";
                snprintf(current_dir, sizeof current_dir, "%s", dsk_dir);
                if ((dirp = opendir(current_dir)) == NULL){
                        return NULL;
                }
        }

        while ((dp = readdir(dirp)) != NULL){
                snprintf(temp_name, sizeof temp_name, "../..%s", disk_path);
                snprintf(dir_dname, sizeof dir_dname, "%s/%s", dsk_dir, dp->d_name);
                stat(dir_dname,&stbuf);

                if (S_ISBLK(stbuf.st_mode)){
                        x = readlink(dir_dname, file_name, sizeof(file_name));
                        file_name[x] = '\0';
                        if (strcmp(file_name, temp_name) == 0) {
                                svr_name = strdup(dp->d_name);
                                closedir(dirp);
                                return svr_name;
                        }
                }
        }
        closedir(dirp);
        return NULL;
}


int get_alias(char *alias){
        char file[MAXPATHLEN];
        di_node_t root_node;
        di_node_t node;
        di_minor_t minor = DI_MINOR_NIL;
        char tmpnode[MAXPATHLEN];
        char *phys_path;
        char *minor_name;
        char *value;
        int instance;
        if ((root_node = di_init("/", DINFOCPYALL)) == DI_NODE_NIL) {
                return 1;
        }
        node = di_drv_first_node(alias, root_node);
        while (node != DI_NODE_NIL) {
                if ((minor = di_minor_next(node, DI_MINOR_NIL)) != DI_MINOR_NIL) {
                        instance = di_instance(node);
                        phys_path = di_devfs_path(node);
                        minor_name = di_minor_name(minor);
                        strcpy(tmpnode, alias);
                        sprintf(tmpnode, "%s%d", tmpnode, instance);
                        strlcpy(file, "/devices", sizeof file);
                        strlcat(file, phys_path, sizeof file);
                        strlcat(file, ":", sizeof file);
                        strlcat(file, minor_name, sizeof file);
                        value = read_dir(file);
                        if (value != NULL){
                                add_mapping(tmpnode, value);
                        }
                        di_devfs_path_free(phys_path);
                        node = di_drv_next_node(node);
                }else{
                        node = di_drv_next_node(node);
                }
        }
        di_fini(root_node);
        return 0;
}


#define BIG_ENOUGH 512
int build_mapping(){
        char device_name[BIG_ENOUGH];
        int x;
        kstat_ctl_t *kc;
        kstat_t *ksp;
        kstat_io_t kios;

        char driver_list[BIG_ENOUGH][BIG_ENOUGH];
        int list_entries = 0;
        int found;

        if ((kc = kstat_open()) == NULL) {
                return;
        }

        for (ksp = kc->kc_chain; ksp; ksp = ksp->ks_next) {
                if (!strcmp(ksp->ks_class, "disk")) {
                        if(ksp->ks_type != KSTAT_TYPE_IO) continue;
                        /* We dont want metadevices appearing as num_diskio */
                        if(strcmp(ksp->ks_module, "md")==0) continue;
                        if((kstat_read(kc, ksp, &kios))==-1) continue;
                        strncpy(device_name, ksp->ks_name, sizeof device_name);
                        for(x=0;x<(sizeof device_name);x++){
                                if( isdigit((int)device_name[x]) ) break;
                        }
                        if(x == sizeof device_name) x--;
                        device_name[x] = '\0';

                        /* Check if we've not already looked it up */
                        found = 0;
                        for(x=0;x<list_entries;x++){
                                if (x>=BIG_ENOUGH){
                                        /* We've got bigger than we thought was massive */
                                        /* If we hit this.. Make big enough bigger */
                                        return 1;
                                }
                                if( !strncmp(driver_list[x], device_name, BIG_ENOUGH)){
                                        found = 1;
                                        break;
                                }
                        }

                        if(!found){
                                if((get_alias(device_name)) != 0){
                                        return 1;
                                }
                                strncpy(driver_list[x], device_name, BIG_ENOUGH);
                                list_entries++;
                        }
                }
        }

        return 0;
}

#endif


char *f_read_line(FILE *f, const char *string){
        /* Max line length. 8k should be more than enough */
        static char line[8192];

        while((fgets(line, sizeof(line), f))!=NULL){
                if(strncmp(string, line, strlen(string))==0){
                        return line;
                }
        }

        return NULL;
}

char *get_string_match(char *line, regmatch_t *match){
        int len=match->rm_eo - match->rm_so;
        char *match_string=malloc(len+1);

        match_string=strncpy(match_string, line+match->rm_so, len);
        match_string[len]='\0';

        return match_string;
}


#ifndef HAVE_ATOLL
static long long atoll(const char *s) {
        long long value = 0;
        int isneg = 0;

        while (*s == ' ' || *s == '\t') {
                s++;
        }
        if (*s == '-') {
                isneg = 1;
                s++;
        }
        while (*s >= '0' && *s <= '9') {
                value = (10 * value) + (*s - '0');
                s++;
        }
        return (isneg ? -value : value);
}
#endif

#ifndef HAVE_STRLCPY
/*      $OpenBSD: strlcpy.c,v 1.8 2003/06/17 21:56:24 millert Exp $     */

/*
 * Copyright (c) 1998 Todd C. Miller <Todd.Miller@courtesan.com>
 *
 * Permission to use, copy, modify, and distribute this software for any
 * purpose with or without fee is hereby granted, provided that the above
 * copyright notice and this permission notice appear in all copies.
 *
 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
 */

/*
 * Copy src to string dst of size siz.  At most siz-1 characters
 * will be copied.  Always NUL terminates (unless siz == 0).
 * Returns strlen(src); if retval >= siz, truncation occurred.
 */
size_t strlcpy(char *dst, const char *src, size_t siz){
        register char *d = dst;
        register const char *s = src;
        register size_t n = siz;

        /* Copy as many bytes as will fit */
        if (n != 0 && --n != 0) {
                do {
                        if ((*d++ = *s++) == 0)
                                break;
                } while (--n != 0);
        }

        /* Not enough room in dst, add NUL and traverse rest of src */
        if (n == 0) {
                if (siz != 0)
                        *d = '\0';              /* NUL-terminate dst */
                while (*s++)
                        ;
        }

        return(s - src - 1);    /* count does not include NUL */
}
#endif

#ifndef HAVE_STRLCAT
/*      $OpenBSD: strlcat.c,v 1.11 2003/06/17 21:56:24 millert Exp $    */

/*
 * Copyright (c) 1998 Todd C. Miller <Todd.Miller@courtesan.com>
 *
 * Permission to use, copy, modify, and distribute this software for any
 * purpose with or without fee is hereby granted, provided that the above
 * copyright notice and this permission notice appear in all copies.
 *
 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
 */

/*
 * Appends src to string dst of size siz (unlike strncat, siz is the
 * full size of dst, not space left).  At most siz-1 characters
 * will be copied.  Always NUL terminates (unless siz <= strlen(dst)).
 * Returns strlen(src) + MIN(siz, strlen(initial dst)).
 * If retval >= siz, truncation occurred.
 */
size_t strlcat(char *dst, const char *src, size_t siz){
        register char *d = dst;
        register const char *s = src;
        register size_t n = siz;
        size_t dlen;

        /* Find the end of dst and adjust bytes left but don't go past end */
        while (n-- != 0 && *d != '\0')
                d++;
        dlen = d - dst;
        n = siz - dlen;

        if (n == 0)
                return(dlen + strlen(s));
        while (*s != '\0') {
                if (n != 1) {
                        *d++ = *s;
                        n--;
                }
                s++;
        }
        *d = '\0';

        return(dlen + (s - src));       /* count does not include NUL */
}

#endif

long long get_ll_match(char *line, regmatch_t *match){
        char *ptr;
        long long num;

        ptr=line+match->rm_so;
        num=atoll(ptr);

        return num;
}

#if defined(FREEBSD) || defined(DFBSD)
kvm_t *get_kvm() {
        static kvm_t *kvmd = NULL;

        if (kvmd != NULL) {
                return kvmd;
        }

        kvmd = kvm_openfiles(NULL, NULL, NULL, O_RDONLY, NULL);
        return kvmd;
}
#endif

#if defined(NETBSD) || defined(OPENBSD)
struct uvmexp *get_uvmexp() {
        int mib[2];
        size_t size;
        static struct uvmexp *uvm = NULL;

        mib[0] = CTL_VM;
        mib[1] = VM_UVMEXP;

        if (sysctl(mib, 2, NULL, &size, NULL, 0) < 0) {
                return NULL;
        }

        uvm = realloc(uvm, size);
        if (uvm == NULL) {
                return NULL;
        }

        if (sysctl(mib, 2, uvm, &size, NULL, 0) < 0) {
                return NULL;
        }

        return uvm;
}
#endif

int statgrab_init(){
#if defined(FREEBSD) || defined(DFBSD)
        { 
                kvm_t *kvmd = get_kvm(); 
                if (kvmd == NULL) return 1;
        }
#endif
#ifdef SOLARIS
        /* On solaris 7, this will fail if you are not root. But, everything
         * will still work, just no disk mappings. So we will ignore the exit
         * status of this, and carry on merrily.
         */
#ifdef HAVE_LIBDEVINFO_H
        build_mapping();
#endif
#endif
        return 0;
}

int statgrab_drop_privileges() {
        if (setegid(getgid()) != 0) return -1;
        if (seteuid(getuid()) != 0) return -1;
        return 0;
}

Revision:	1.31
Committed:	Mon Feb 16 14:55:32 2004 UTC (20 years, 3 months ago) by tdb
Content type:	text/plain
Branch:	MAIN
CVS Tags:	LIBSTATGRAB_0_9
Changes since 1.30:	+4 -4 lines
Log Message:	Add support for DragonFly BSD 1.0. Also a minor tweak to the network interface code to make it more portable.
#	User	Rev	Content
1	tdb	1.23	/*
2	tdb	1.5	* i-scream central monitoring system
3	tdb	1.6	* http://www.i-scream.org
4	tdb	1.23	* Copyright (C) 2000-2004 i-scream
5	tdb	1.5	*
6	tdb	1.23	* This library is free software; you can redistribute it and/or
7			* modify it under the terms of the GNU Lesser General Public
8			* License as published by the Free Software Foundation; either
9			* version 2.1 of the License, or (at your option) any later version.
10	tdb	1.5	*
11	tdb	1.23	* This library is distributed in the hope that it will be useful,
12	tdb	1.5	* but WITHOUT ANY WARRANTY; without even the implied warranty of
13	tdb	1.23	* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14			* Lesser General Public License for more details.
15	tdb	1.5	*
16	tdb	1.23	* You should have received a copy of the GNU Lesser General Public
17			* License along with this library; if not, write to the Free Software
18			* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
19			* 02111-1307 USA
20	tdb	1.24	*
21	tdb	1.31	* $Id: tools.c,v 1.30 2004/02/14 13:43:37 ats Exp $
22	tdb	1.5	*/
23
24			#ifdef HAVE_CONFIG_H
25			#include "config.h"
26			#endif
27
28	pajs	1.1	#include <stdio.h>
29			#include <string.h>
30	pajs	1.3	#include <stdlib.h>
31	ats	1.18	#include <unistd.h>
32	pajs	1.3	#include <sys/types.h>
33			#include <regex.h>
34	ats	1.9	#ifdef ALLBSD
35	ats	1.8	#include <fcntl.h>
36	tdb	1.29	#endif
37	tdb	1.31	#if defined(FREEBSD) \|\| defined(DFBSD)
38	ats	1.8	#include <kvm.h>
39			#endif
40	ats	1.28	#if defined(NETBSD) \|\| defined(OPENBSD)
41	ats	1.9	#include <uvm/uvm_extern.h>
42	ats	1.28	#include <sys/param.h>
43			#include <sys/sysctl.h>
44	ats	1.9	#endif
45	pajs	1.1
46	ats	1.7	#include "tools.h"
47
48	pajs	1.14	#ifdef SOLARIS
49	pajs	1.27	#ifdef HAVE_LIBDEVINFO_H
50	pajs	1.14	#include <libdevinfo.h>
51	pajs	1.27	#endif
52	pajs	1.14	#include <kstat.h>
53			#include <unistd.h>
54			#include <ctype.h>
55			#include <sys/types.h>
56			#include <sys/dkio.h>
57			#include <sys/stat.h>
58			#include <fcntl.h>
59			#include <sys/fcntl.h>
60			#include <dirent.h>
61			#endif
62
63	pajs	1.26	#if defined(SOLARIS) && defined(HAVE_LIBDEVINFO_H)
64	pajs	1.14	struct map{
65			char *bsd;
66			char *svr;
67
68			struct map *next;
69			};
70			typedef struct map mapping_t;
71
72			static mapping_t *mapping = NULL;
73	pajs	1.26	#endif
74	pajs	1.14
75	pajs	1.26	#ifdef SOLARIS
76	pajs	1.14	char get_svr_from_bsd(char bsd){
77	pajs	1.26	#ifdef HAVE_LIBDEVINFO_H
78	pajs	1.14	mapping_t *map_ptr;
79			for(map_ptr = mapping; map_ptr != NULL; map_ptr = map_ptr->next)
80			if(!strcmp(map_ptr->bsd, bsd)) return map_ptr->svr;
81	pajs	1.26	#endif
82	pajs	1.14	return bsd;
83			}
84	pajs	1.26	#endif
85	pajs	1.14
86	pajs	1.26	#if defined(SOLARIS) && defined(HAVE_LIBDEVINFO_H)
87	pajs	1.14	void add_mapping(char bsd, char svr){
88			mapping_t *map_ptr;
89			mapping_t *map_end_ptr;
90
91			bsd = strdup(bsd);
92			svr = strdup(svr);
93
94			if (mapping == NULL){
95			mapping = malloc(sizeof(mapping_t));
96			if (mapping == NULL) return;
97			map_ptr = mapping;
98			}else{
99			/* See if its already been added */
100			for(map_ptr = mapping; map_ptr != NULL; map_ptr = map_ptr->next){
101			if( (!strcmp(map_ptr->bsd, bsd)) \|\| (!strcmp(map_ptr->svr, svr)) ){
102			return;
103			}
104			map_end_ptr = map_ptr;
105			}
106
107			/* We've reached end of list and not found the entry.. So we need to malloc
108			* new mapping_t
109			*/
110			map_end_ptr->next = malloc(sizeof(mapping_t));
111			if (map_end_ptr->next == NULL) return;
112			map_ptr = map_end_ptr->next;
113			}
114
115			map_ptr->next = NULL;
116			map_ptr->bsd = bsd;
117			map_ptr->svr = svr;
118
119			return;
120			}
121
122			char read_dir(char disk_path){
123			DIR *dirp;
124	tdb	1.15	struct dirent *dp;
125			struct stat stbuf;
126	pajs	1.14	char *svr_name;
127	tdb	1.15	char current_dir[MAXPATHLEN];
128			char file_name[MAXPATHLEN];
129			char temp_name[MAXPATHLEN];
130			char dir_dname[MAXPATHLEN];
131	pajs	1.14	char *dsk_dir;
132			int x;
133
134			dsk_dir = "/dev/osa/dev/dsk";
135	tdb	1.15	strncpy(current_dir, dsk_dir, sizeof current_dir);
136			if ((dirp = opendir(current_dir)) == NULL){
137	pajs	1.14	dsk_dir = "/dev/dsk";
138			snprintf(current_dir, sizeof current_dir, "%s", dsk_dir);
139			if ((dirp = opendir(current_dir)) == NULL){
140			return NULL;
141			}
142			}
143
144	tdb	1.15	while ((dp = readdir(dirp)) != NULL){
145	pajs	1.14	snprintf(temp_name, sizeof temp_name, "../..%s", disk_path);
146			snprintf(dir_dname, sizeof dir_dname, "%s/%s", dsk_dir, dp->d_name);
147			stat(dir_dname,&stbuf);
148
149			if (S_ISBLK(stbuf.st_mode)){
150			x = readlink(dir_dname, file_name, sizeof(file_name));
151			file_name[x] = '\0';
152			if (strcmp(file_name, temp_name) == 0) {
153			svr_name = strdup(dp->d_name);
154			closedir(dirp);
155			return svr_name;
156			}
157			}
158			}
159	tdb	1.16	closedir(dirp);
160	pajs	1.14	return NULL;
161			}
162
163
164
165			int get_alias(char *alias){
166			char file[MAXPATHLEN];
167			di_node_t root_node;
168			di_node_t node;
169			di_minor_t minor = DI_MINOR_NIL;
170			char tmpnode[MAXPATHLEN];
171			char *phys_path;
172			char *minor_name;
173			char *value;
174			int instance;
175			if ((root_node = di_init("/", DINFOCPYALL)) == DI_NODE_NIL) {
176	pajs	1.17	return 1;
177	pajs	1.14	}
178			node = di_drv_first_node(alias, root_node);
179			while (node != DI_NODE_NIL) {
180			if ((minor = di_minor_next(node, DI_MINOR_NIL)) != DI_MINOR_NIL) {
181			instance = di_instance(node);
182			phys_path = di_devfs_path(node);
183			minor_name = di_minor_name(minor);
184			strcpy(tmpnode, alias);
185			sprintf(tmpnode, "%s%d", tmpnode, instance);
186	pajs	1.17	strlcpy(file, "/devices", sizeof file);
187			strlcat(file, phys_path, sizeof file);
188			strlcat(file, ":", sizeof file);
189			strlcat(file, minor_name, sizeof file);
190	pajs	1.14	value = read_dir(file);
191			if (value != NULL){
192			add_mapping(tmpnode, value);
193			}
194			di_devfs_path_free(phys_path);
195			node = di_drv_next_node(node);
196			}else{
197			node = di_drv_next_node(node);
198			}
199	tdb	1.15	}
200	pajs	1.14	di_fini(root_node);
201	pajs	1.17	return 0;
202	pajs	1.14	}
203
204	pajs	1.22
205			#define BIG_ENOUGH 512
206	pajs	1.17	int build_mapping(){
207	pajs	1.22	char device_name[BIG_ENOUGH];
208	pajs	1.14	int x;
209	tdb	1.15	kstat_ctl_t *kc;
210			kstat_t *ksp;
211			kstat_io_t kios;
212	pajs	1.14
213	pajs	1.22	char driver_list[BIG_ENOUGH][BIG_ENOUGH];
214			int list_entries = 0;
215			int found;
216
217	pajs	1.14	if ((kc = kstat_open()) == NULL) {
218	tdb	1.16	return;
219	tdb	1.15	}
220	pajs	1.14
221	tdb	1.15	for (ksp = kc->kc_chain; ksp; ksp = ksp->ks_next) {
222			if (!strcmp(ksp->ks_class, "disk")) {
223			if(ksp->ks_type != KSTAT_TYPE_IO) continue;
224			/* We dont want metadevices appearing as num_diskio */
225			if(strcmp(ksp->ks_module, "md")==0) continue;
226			if((kstat_read(kc, ksp, &kios))==-1) continue;
227	pajs	1.14	strncpy(device_name, ksp->ks_name, sizeof device_name);
228			for(x=0;x<(sizeof device_name);x++){
229			if( isdigit((int)device_name[x]) ) break;
230			}
231			if(x == sizeof device_name) x--;
232			device_name[x] = '\0';
233	pajs	1.22
234			/* Check if we've not already looked it up */
235			found = 0;
236			for(x=0;x<list_entries;x++){
237			if (x>=BIG_ENOUGH){
238			/* We've got bigger than we thought was massive */
239			/* If we hit this.. Make big enough bigger */
240			return 1;
241			}
242			if( !strncmp(driver_list[x], device_name, BIG_ENOUGH)){
243			found = 1;
244			break;
245			}
246			}
247
248			if(!found){
249			if((get_alias(device_name)) != 0){
250			return 1;
251			}
252			strncpy(driver_list[x], device_name, BIG_ENOUGH);
253			list_entries++;
254	pajs	1.17	}
255	tdb	1.15	}
256	pajs	1.14	}
257	tdb	1.15
258	pajs	1.17	return 0;
259	pajs	1.14	}
260
261			#endif
262
263
264
265	pajs	1.1	char f_read_line(FILE f, const char *string){
266			/* Max line length. 8k should be more than enough */
267			static char line[8192];
268
269	pajs	1.2	while((fgets(line, sizeof(line), f))!=NULL){
270	pajs	1.1	if(strncmp(string, line, strlen(string))==0){
271			return line;
272			}
273			}
274
275			return NULL;
276	pajs	1.3	}
277
278			char get_string_match(char line, regmatch_t *match){
279			int len=match->rm_eo - match->rm_so;
280			char *match_string=malloc(len+1);
281
282			match_string=strncpy(match_string, line+match->rm_so, len);
283			match_string[len]='\0';
284
285			return match_string;
286			}
287	ats	1.7
288	pajs	1.14
289
290	ats	1.13	#ifndef HAVE_ATOLL
291			static long long atoll(const char *s) {
292			long long value = 0;
293			int isneg = 0;
294
295			while (s == ' ' \|\| s == '\t') {
296			s++;
297			}
298			if (*s == '-') {
299			isneg = 1;
300			s++;
301			}
302			while (s >= '0' && s <= '9') {
303			value = (10 * value) + (*s - '0');
304			s++;
305			}
306			return (isneg ? -value : value);
307			}
308			#endif
309
310	pajs	1.19	#ifndef HAVE_STRLCPY
311	ats	1.21	/* $OpenBSD: strlcpy.c,v 1.8 2003/06/17 21:56:24 millert Exp $ */
312	pajs	1.19
313			/*
314			* Copyright (c) 1998 Todd C. Miller <Todd.Miller@courtesan.com>
315			*
316			* Permission to use, copy, modify, and distribute this software for any
317			* purpose with or without fee is hereby granted, provided that the above
318			* copyright notice and this permission notice appear in all copies.
319			*
320			* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
321			* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
322			* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
323			* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
324			* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
325			* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
326			* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
327			*/
328
329			/*
330			* Copy src to string dst of size siz. At most siz-1 characters
331			* will be copied. Always NUL terminates (unless siz == 0).
332			* Returns strlen(src); if retval >= siz, truncation occurred.
333			*/
334			size_t strlcpy(char dst, const char src, size_t siz){
335			register char *d = dst;
336			register const char *s = src;
337			register size_t n = siz;
338
339			/* Copy as many bytes as will fit */
340			if (n != 0 && --n != 0) {
341			do {
342			if ((d++ = s++) == 0)
343			break;
344			} while (--n != 0);
345			}
346
347			/* Not enough room in dst, add NUL and traverse rest of src */
348			if (n == 0) {
349			if (siz != 0)
350			d = '\0'; / NUL-terminate dst */
351			while (*s++)
352			;
353			}
354
355			return(s - src - 1); /* count does not include NUL */
356			}
357			#endif
358
359			#ifndef HAVE_STRLCAT
360			/* $OpenBSD: strlcat.c,v 1.11 2003/06/17 21:56:24 millert Exp $ */
361
362			/*
363			* Copyright (c) 1998 Todd C. Miller <Todd.Miller@courtesan.com>
364			*
365			* Permission to use, copy, modify, and distribute this software for any
366			* purpose with or without fee is hereby granted, provided that the above
367			* copyright notice and this permission notice appear in all copies.
368			*
369			* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
370			* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
371			* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
372			* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
373			* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
374			* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
375			* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
376			*/
377
378			/*
379			* Appends src to string dst of size siz (unlike strncat, siz is the
380			* full size of dst, not space left). At most siz-1 characters
381			* will be copied. Always NUL terminates (unless siz <= strlen(dst)).
382			* Returns strlen(src) + MIN(siz, strlen(initial dst)).
383			* If retval >= siz, truncation occurred.
384			*/
385			size_t strlcat(char dst, const char src, size_t siz){
386			register char *d = dst;
387			register const char *s = src;
388			register size_t n = siz;
389			size_t dlen;
390
391			/* Find the end of dst and adjust bytes left but don't go past end */
392			while (n-- != 0 && *d != '\0')
393			d++;
394			dlen = d - dst;
395			n = siz - dlen;
396
397			if (n == 0)
398			return(dlen + strlen(s));
399			while (*s != '\0') {
400			if (n != 1) {
401			d++ = s;
402			n--;
403			}
404			s++;
405			}
406			*d = '\0';
407
408			return(dlen + (s - src)); /* count does not include NUL */
409			}
410
411			#endif
412
413	pajs	1.3	long long get_ll_match(char line, regmatch_t match){
414			char *ptr;
415			long long num;
416
417			ptr=line+match->rm_so;
418			num=atoll(ptr);
419
420			return num;
421	ats	1.8	}
422
423	tdb	1.31	#if defined(FREEBSD) \|\| defined(DFBSD)
424	ats	1.8	kvm_t *get_kvm() {
425			static kvm_t *kvmd = NULL;
426
427			if (kvmd != NULL) {
428			return kvmd;
429			}
430
431			kvmd = kvm_openfiles(NULL, NULL, NULL, O_RDONLY, NULL);
432			return kvmd;
433	pajs	1.1	}
434	pajs	1.4	#endif
435	ats	1.9
436	ats	1.28	#if defined(NETBSD) \|\| defined(OPENBSD)
437	ats	1.9	struct uvmexp *get_uvmexp() {
438	ats	1.28	int mib[2];
439			size_t size;
440			static struct uvmexp *uvm = NULL;
441	ats	1.9
442	ats	1.28	mib[0] = CTL_VM;
443			mib[1] = VM_UVMEXP;
444
445			if (sysctl(mib, 2, NULL, &size, NULL, 0) < 0) {
446	ats	1.9	return NULL;
447			}
448
449	ats	1.28	uvm = realloc(uvm, size);
450			if (uvm == NULL) {
451			return NULL;
452	ats	1.9	}
453
454	ats	1.28	if (sysctl(mib, 2, uvm, &size, NULL, 0) < 0) {
455	ats	1.9	return NULL;
456			}
457	ats	1.28
458			return uvm;
459	ats	1.9	}
460			#endif
461
462	pajs	1.10	int statgrab_init(){
463	tdb	1.31	#if defined(FREEBSD) \|\| defined(DFBSD)
464	pajs	1.11	{
465			kvm_t *kvmd = get_kvm();
466	tdb	1.15	if (kvmd == NULL) return 1;
467	pajs	1.11	}
468	pajs	1.14	#endif
469			#ifdef SOLARIS
470	pajs	1.20	/* On solaris 7, this will fail if you are not root. But, everything
471			* will still work, just no disk mappings. So we will ignore the exit
472			* status of this, and carry on merrily.
473			*/
474	pajs	1.26	#ifdef HAVE_LIBDEVINFO_H
475	pajs	1.20	build_mapping();
476	pajs	1.25	#endif
477	pajs	1.10	#endif
478			return 0;
479			}
480	ats	1.18
481			int statgrab_drop_privileges() {
482			if (setegid(getgid()) != 0) return -1;
483			if (seteuid(getuid()) != 0) return -1;
484			return 0;
485			}
486