src/libstatgrab/tools.c

/*
 * i-scream libstatgrab
 * 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 1.45 2004/04/06 17:55:16 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(FREEBSD5)) || defined(DFBSD)
#include <kvm.h>
#include <paths.h>
#endif
#if defined(NETBSD) || defined(OPENBSD)
#include <uvm/uvm_extern.h>
#include <sys/param.h>
#include <sys/sysctl.h>
#endif

#include "tools.h"
#include "statgrab.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
const char *sg_get_svr_from_bsd(const 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)
static void add_mapping(char *bsd, char *svr){
        mapping_t *map_ptr;
        mapping_t *map_end_ptr;

        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 = strdup(bsd);
        map_ptr->svr = strdup(svr);

        return;
}


static 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;
}


static 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);
                        sg_strlcpy(file, "/devices", sizeof file);
                        sg_strlcat(file, phys_path, sizeof file);
                        sg_strlcat(file, ":", sizeof file);
                        sg_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
static 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 -1;
        }

        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 *sg_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 *sg_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

/*      $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 sg_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 */
}

/*      $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 sg_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 */
}

int sg_update_string(char **dest, const char *src) {
        char *new;

        if (src == NULL) {
                /* We're being told to set it to NULL. */
                free(*dest);
                *dest = NULL;
                return 0;
        }

        new = realloc(*dest, strlen(src) + 1);
        if (new == NULL) {
                return -1;
        }

        strcpy(new, src);
        *dest = new;
        return 0;
}

long long sg_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(FREEBSD5)) || defined(DFBSD)
kvm_t *sg_get_kvm() {
        static kvm_t *kvmd = NULL;

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

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

/* Can't think of a better name for this function */
kvm_t *sg_get_kvm2() {
        static kvm_t *kvmd2 = NULL;

        if (kvmd2 != NULL) {
                return kvmd2;
        }

        kvmd2 = kvm_openfiles(_PATH_DEVNULL, _PATH_DEVNULL, NULL, O_RDONLY, NULL);
        return kvmd2;
}
#endif

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

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

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

        return &uvm;
}
#endif

int sg_init(){
#if (defined(FREEBSD) && !defined(FREEBSD5)) || defined(DFBSD)
        if (sg_get_kvm() == NULL) {
                return -1;
        }
        if (sg_get_kvm2() == 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 sg_drop_privileges() {
        if (setegid(getgid()) != 0) return -1;
        if (seteuid(getuid()) != 0) return -1;
        return 0;
}

void *sg_realloc(void *ptr, size_t size) {
        void *tmp = NULL;
        tmp = realloc(ptr, size);
        if(tmp == NULL) {
                sg_set_error(SG_ERROR_MALLOC_FAILED, NULL);
        }
        return tmp;
}

Revision:	1.46
Committed:	Wed Apr 7 09:44:08 2004 UTC (20 years, 1 month ago) by tdb
Content type:	text/plain
Branch:	MAIN
Changes since 1.45:	+11 -1 lines
Log Message:	Add sg_realloc, and a macro fo sg_malloc.
#	User	Rev	Content
1	tdb	1.23	/*
2	tdb	1.43	* i-scream libstatgrab
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	1.46	* $Id: tools.c,v 1.45 2004/04/06 17:55:16 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	1.34	#if (defined(FREEBSD) && !defined(FREEBSD5)) \|\| defined(DFBSD)
38	ats	1.8	#include <kvm.h>
39	tdb	1.35	#include <paths.h>
40	ats	1.8	#endif
41	ats	1.28	#if defined(NETBSD) \|\| defined(OPENBSD)
42	ats	1.9	#include <uvm/uvm_extern.h>
43	ats	1.28	#include <sys/param.h>
44			#include <sys/sysctl.h>
45	ats	1.9	#endif
46	pajs	1.1
47	ats	1.7	#include "tools.h"
48	tdb	1.46	#include "statgrab.h"
49	ats	1.7
50	pajs	1.14	#ifdef SOLARIS
51	pajs	1.27	#ifdef HAVE_LIBDEVINFO_H
52	pajs	1.14	#include <libdevinfo.h>
53	pajs	1.27	#endif
54	pajs	1.14	#include <kstat.h>
55			#include <unistd.h>
56			#include <ctype.h>
57			#include <sys/types.h>
58			#include <sys/dkio.h>
59			#include <sys/stat.h>
60			#include <fcntl.h>
61			#include <sys/fcntl.h>
62			#include <dirent.h>
63			#endif
64
65	pajs	1.26	#if defined(SOLARIS) && defined(HAVE_LIBDEVINFO_H)
66	pajs	1.14	struct map{
67			char *bsd;
68			char *svr;
69
70			struct map *next;
71			};
72			typedef struct map mapping_t;
73
74			static mapping_t *mapping = NULL;
75	pajs	1.26	#endif
76	pajs	1.14
77	pajs	1.26	#ifdef SOLARIS
78	ats	1.41	const char sg_get_svr_from_bsd(const char bsd){
79	pajs	1.26	#ifdef HAVE_LIBDEVINFO_H
80	pajs	1.14	mapping_t *map_ptr;
81			for(map_ptr = mapping; map_ptr != NULL; map_ptr = map_ptr->next)
82			if(!strcmp(map_ptr->bsd, bsd)) return map_ptr->svr;
83	pajs	1.26	#endif
84	pajs	1.14	return bsd;
85			}
86	pajs	1.26	#endif
87	pajs	1.14
88	pajs	1.26	#if defined(SOLARIS) && defined(HAVE_LIBDEVINFO_H)
89	ats	1.41	static void add_mapping(char bsd, char svr){
90	pajs	1.14	mapping_t *map_ptr;
91			mapping_t *map_end_ptr;
92
93			if (mapping == NULL){
94			mapping = malloc(sizeof(mapping_t));
95			if (mapping == NULL) return;
96			map_ptr = mapping;
97			}else{
98			/* See if its already been added */
99			for(map_ptr = mapping; map_ptr != NULL; map_ptr = map_ptr->next){
100			if( (!strcmp(map_ptr->bsd, bsd)) \|\| (!strcmp(map_ptr->svr, svr)) ){
101			return;
102			}
103			map_end_ptr = map_ptr;
104			}
105
106			/* We've reached end of list and not found the entry.. So we need to malloc
107			* new mapping_t
108			*/
109			map_end_ptr->next = malloc(sizeof(mapping_t));
110			if (map_end_ptr->next == NULL) return;
111			map_ptr = map_end_ptr->next;
112			}
113
114			map_ptr->next = NULL;
115	ats	1.40	map_ptr->bsd = strdup(bsd);
116			map_ptr->svr = strdup(svr);
117	pajs	1.14
118			return;
119			}
120
121	ats	1.41
122			static char read_dir(char disk_path){
123	pajs	1.14	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	ats	1.41	static int get_alias(char *alias){
165	pajs	1.14	char file[MAXPATHLEN];
166			di_node_t root_node;
167			di_node_t node;
168			di_minor_t minor = DI_MINOR_NIL;
169			char tmpnode[MAXPATHLEN];
170			char *phys_path;
171			char *minor_name;
172			char *value;
173			int instance;
174			if ((root_node = di_init("/", DINFOCPYALL)) == DI_NODE_NIL) {
175	ats	1.45	return -1;
176	pajs	1.14	}
177			node = di_drv_first_node(alias, root_node);
178			while (node != DI_NODE_NIL) {
179			if ((minor = di_minor_next(node, DI_MINOR_NIL)) != DI_MINOR_NIL) {
180			instance = di_instance(node);
181			phys_path = di_devfs_path(node);
182			minor_name = di_minor_name(minor);
183			strcpy(tmpnode, alias);
184			sprintf(tmpnode, "%s%d", tmpnode, instance);
185	ats	1.41	sg_strlcpy(file, "/devices", sizeof file);
186			sg_strlcat(file, phys_path, sizeof file);
187			sg_strlcat(file, ":", sizeof file);
188			sg_strlcat(file, minor_name, sizeof file);
189	pajs	1.14	value = read_dir(file);
190			if (value != NULL){
191			add_mapping(tmpnode, value);
192			}
193			di_devfs_path_free(phys_path);
194			node = di_drv_next_node(node);
195			}else{
196			node = di_drv_next_node(node);
197			}
198	tdb	1.15	}
199	pajs	1.14	di_fini(root_node);
200	pajs	1.17	return 0;
201	pajs	1.14	}
202
203	pajs	1.22
204			#define BIG_ENOUGH 512
205	ats	1.41	static int build_mapping(){
206	pajs	1.22	char device_name[BIG_ENOUGH];
207	pajs	1.14	int x;
208	tdb	1.15	kstat_ctl_t *kc;
209			kstat_t *ksp;
210			kstat_io_t kios;
211	pajs	1.14
212	pajs	1.22	char driver_list[BIG_ENOUGH][BIG_ENOUGH];
213			int list_entries = 0;
214			int found;
215
216	pajs	1.14	if ((kc = kstat_open()) == NULL) {
217	ats	1.45	return -1;
218	tdb	1.15	}
219	pajs	1.14
220	tdb	1.15	for (ksp = kc->kc_chain; ksp; ksp = ksp->ks_next) {
221			if (!strcmp(ksp->ks_class, "disk")) {
222			if(ksp->ks_type != KSTAT_TYPE_IO) continue;
223			/* We dont want metadevices appearing as num_diskio */
224			if(strcmp(ksp->ks_module, "md")==0) continue;
225			if((kstat_read(kc, ksp, &kios))==-1) continue;
226	pajs	1.14	strncpy(device_name, ksp->ks_name, sizeof device_name);
227			for(x=0;x<(sizeof device_name);x++){
228			if( isdigit((int)device_name[x]) ) break;
229			}
230			if(x == sizeof device_name) x--;
231			device_name[x] = '\0';
232	pajs	1.22
233			/* Check if we've not already looked it up */
234			found = 0;
235			for(x=0;x<list_entries;x++){
236			if (x>=BIG_ENOUGH){
237			/* We've got bigger than we thought was massive */
238			/* If we hit this.. Make big enough bigger */
239	ats	1.45	return -1;
240	pajs	1.22	}
241			if( !strncmp(driver_list[x], device_name, BIG_ENOUGH)){
242			found = 1;
243			break;
244			}
245			}
246
247			if(!found){
248			if((get_alias(device_name)) != 0){
249	ats	1.45	return -1;
250	pajs	1.22	}
251			strncpy(driver_list[x], device_name, BIG_ENOUGH);
252			list_entries++;
253	pajs	1.17	}
254	tdb	1.15	}
255	pajs	1.14	}
256	tdb	1.15
257	pajs	1.17	return 0;
258	pajs	1.14	}
259
260			#endif
261
262
263
264	ats	1.41	char sg_f_read_line(FILE f, const char *string){
265	pajs	1.1	/* Max line length. 8k should be more than enough */
266			static char line[8192];
267
268	pajs	1.2	while((fgets(line, sizeof(line), f))!=NULL){
269	pajs	1.1	if(strncmp(string, line, strlen(string))==0){
270			return line;
271			}
272			}
273
274			return NULL;
275	pajs	1.3	}
276
277	ats	1.41	char sg_get_string_match(char line, regmatch_t *match){
278	pajs	1.3	int len=match->rm_eo - match->rm_so;
279			char *match_string=malloc(len+1);
280
281			match_string=strncpy(match_string, line+match->rm_so, len);
282			match_string[len]='\0';
283
284			return match_string;
285			}
286	ats	1.7
287	pajs	1.14
288
289	ats	1.13	#ifndef HAVE_ATOLL
290			static long long atoll(const char *s) {
291			long long value = 0;
292			int isneg = 0;
293
294			while (s == ' ' \|\| s == '\t') {
295			s++;
296			}
297			if (*s == '-') {
298			isneg = 1;
299			s++;
300			}
301			while (s >= '0' && s <= '9') {
302			value = (10 * value) + (*s - '0');
303			s++;
304			}
305			return (isneg ? -value : value);
306			}
307			#endif
308
309	ats	1.21	/* $OpenBSD: strlcpy.c,v 1.8 2003/06/17 21:56:24 millert Exp $ */
310	pajs	1.19
311			/*
312			* Copyright (c) 1998 Todd C. Miller <Todd.Miller@courtesan.com>
313			*
314			* Permission to use, copy, modify, and distribute this software for any
315			* purpose with or without fee is hereby granted, provided that the above
316			* copyright notice and this permission notice appear in all copies.
317			*
318			* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
319			* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
320			* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
321			* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
322			* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
323			* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
324			* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
325			*/
326
327			/*
328			* Copy src to string dst of size siz. At most siz-1 characters
329			* will be copied. Always NUL terminates (unless siz == 0).
330			* Returns strlen(src); if retval >= siz, truncation occurred.
331			*/
332	ats	1.41	size_t sg_strlcpy(char dst, const char src, size_t siz){
333	pajs	1.19	register char *d = dst;
334			register const char *s = src;
335			register size_t n = siz;
336
337			/* Copy as many bytes as will fit */
338			if (n != 0 && --n != 0) {
339			do {
340			if ((d++ = s++) == 0)
341			break;
342			} while (--n != 0);
343			}
344
345			/* Not enough room in dst, add NUL and traverse rest of src */
346			if (n == 0) {
347			if (siz != 0)
348			d = '\0'; / NUL-terminate dst */
349			while (*s++)
350			;
351			}
352
353			return(s - src - 1); /* count does not include NUL */
354			}
355
356			/* $OpenBSD: strlcat.c,v 1.11 2003/06/17 21:56:24 millert Exp $ */
357
358			/*
359			* Copyright (c) 1998 Todd C. Miller <Todd.Miller@courtesan.com>
360			*
361			* Permission to use, copy, modify, and distribute this software for any
362			* purpose with or without fee is hereby granted, provided that the above
363			* copyright notice and this permission notice appear in all copies.
364			*
365			* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
366			* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
367			* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
368			* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
369			* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
370			* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
371			* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
372			*/
373
374			/*
375			* Appends src to string dst of size siz (unlike strncat, siz is the
376			* full size of dst, not space left). At most siz-1 characters
377			* will be copied. Always NUL terminates (unless siz <= strlen(dst)).
378			* Returns strlen(src) + MIN(siz, strlen(initial dst)).
379			* If retval >= siz, truncation occurred.
380			*/
381	ats	1.41	size_t sg_strlcat(char dst, const char src, size_t siz){
382	pajs	1.19	register char *d = dst;
383			register const char *s = src;
384			register size_t n = siz;
385			size_t dlen;
386
387			/* Find the end of dst and adjust bytes left but don't go past end */
388			while (n-- != 0 && *d != '\0')
389			d++;
390			dlen = d - dst;
391			n = siz - dlen;
392
393			if (n == 0)
394			return(dlen + strlen(s));
395			while (*s != '\0') {
396			if (n != 1) {
397			d++ = s;
398			n--;
399			}
400			s++;
401			}
402			*d = '\0';
403
404			return(dlen + (s - src)); /* count does not include NUL */
405			}
406
407	ats	1.42	int sg_update_string(char *dest, const char src) {
408	ats	1.37	char *new;
409
410	ats	1.42	if (src == NULL) {
411			/* We're being told to set it to NULL. */
412			free(*dest);
413			*dest = NULL;
414			return 0;
415			}
416
417	ats	1.37	new = realloc(*dest, strlen(src) + 1);
418			if (new == NULL) {
419	ats	1.42	return -1;
420	ats	1.37	}
421
422			strcpy(new, src);
423			*dest = new;
424	ats	1.42	return 0;
425	ats	1.37	}
426	pajs	1.19
427	ats	1.41	long long sg_get_ll_match(char line, regmatch_t match){
428	pajs	1.3	char *ptr;
429			long long num;
430
431			ptr=line+match->rm_so;
432			num=atoll(ptr);
433
434			return num;
435	ats	1.8	}
436
437	tdb	1.34	#if (defined(FREEBSD) && !defined(FREEBSD5)) \|\| defined(DFBSD)
438	ats	1.41	kvm_t *sg_get_kvm() {
439	ats	1.8	static kvm_t *kvmd = NULL;
440
441			if (kvmd != NULL) {
442			return kvmd;
443			}
444
445			kvmd = kvm_openfiles(NULL, NULL, NULL, O_RDONLY, NULL);
446			return kvmd;
447	pajs	1.1	}
448	tdb	1.34
449			/* Can't think of a better name for this function */
450	ats	1.41	kvm_t *sg_get_kvm2() {
451	tdb	1.34	static kvm_t *kvmd2 = NULL;
452
453			if (kvmd2 != NULL) {
454			return kvmd2;
455			}
456
457			kvmd2 = kvm_openfiles(_PATH_DEVNULL, _PATH_DEVNULL, NULL, O_RDONLY, NULL);
458			return kvmd2;
459			}
460	pajs	1.4	#endif
461	ats	1.9
462	ats	1.28	#if defined(NETBSD) \|\| defined(OPENBSD)
463	ats	1.41	struct uvmexp *sg_get_uvmexp() {
464	ats	1.28	int mib[2];
465	ats	1.44	size_t size = sizeof(struct uvmexp);
466			static struct uvmexp uvm;
467	ats	1.36	struct uvmexp *new;
468	ats	1.9
469	ats	1.28	mib[0] = CTL_VM;
470			mib[1] = VM_UVMEXP;
471
472	ats	1.44	if (sysctl(mib, 2, &uvm, &size, NULL, 0) < 0) {
473	ats	1.9	return NULL;
474			}
475
476	ats	1.44	return &uvm;
477	ats	1.9	}
478			#endif
479
480	ats	1.41	int sg_init(){
481	tdb	1.33	#if (defined(FREEBSD) && !defined(FREEBSD5)) \|\| defined(DFBSD)
482	ats	1.41	if (sg_get_kvm() == NULL) {
483	ats	1.45	return -1;
484	ats	1.41	}
485			if (sg_get_kvm2() == NULL) {
486	ats	1.45	return -1;
487	ats	1.32	}
488	pajs	1.14	#endif
489			#ifdef SOLARIS
490	pajs	1.20	/* On solaris 7, this will fail if you are not root. But, everything
491			* will still work, just no disk mappings. So we will ignore the exit
492			* status of this, and carry on merrily.
493			*/
494	pajs	1.26	#ifdef HAVE_LIBDEVINFO_H
495	pajs	1.20	build_mapping();
496	pajs	1.25	#endif
497	pajs	1.10	#endif
498			return 0;
499			}
500	ats	1.18
501	ats	1.41	int sg_drop_privileges() {
502	ats	1.18	if (setegid(getgid()) != 0) return -1;
503			if (seteuid(getuid()) != 0) return -1;
504			return 0;
505	tdb	1.46	}
506
507			void sg_realloc(void ptr, size_t size) {
508			void *tmp = NULL;
509			tmp = realloc(ptr, size);
510			if(tmp == NULL) {
511			sg_set_error(SG_ERROR_MALLOC_FAILED, NULL);
512			}
513			return tmp;
514	ats	1.18	}
515