src/libstatgrab/tools.c

/* 
 * i-scream central monitoring system
 * http://www.i-scream.org
 * Copyright (C) 2000-2003 i-scream
 * 
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU General Public License
 * as published by the Free Software Foundation; either version 2
 * of the License, or (at your option) any later version.
 * 
 * This program 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 General Public License for more details.
 * 
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
 */

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

#include <stdio.h>
#include <string.h>
#include <stdlib.h>
#include <sys/types.h>
#include <regex.h>
#ifdef ALLBSD
#include <fcntl.h>
#include <kvm.h>
#endif
#ifdef NETBSD
#include <uvm/uvm_extern.h>
#endif

#include "tools.h"

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;
}

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

        ptr=line+match->rm_so;
#ifdef HAVE_ATOLL
        num=atoll(ptr);
#else
        /* Don't have atoll, so use this bodge instead */
        {
                long numl;
                numl=atol(ptr);
                num=numl;
        }
#endif

        return num;
}

#ifdef ALLBSD
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

#ifdef NETBSD
struct uvmexp *get_uvmexp() {
        static u_long addr = 0;
        static struct uvmexp uvm;
        kvm_t *kvmd = get_kvm();

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

        if (addr == 0) {
                struct nlist symbols[] = {
                        { "_uvmexp" },
                        { NULL }
                };

                if (kvm_nlist(kvmd, symbols) != 0) {
                        return NULL;
                }
                addr = symbols[0].n_value;
        }

        if (kvm_read(kvmd, addr, &uvm, sizeof uvm) != sizeof uvm) {
                return NULL;
        }
        return &uvm;
}
#endif

int statgrab_init(){
#ifdef ALLBSD 
        { 
                kvm_t *kvmd = get_kvm(); 
                if (kvmd == NULL) return 1;
        }
#endif
#ifdef NETBSD
        {
                struct uvmexp *uvm = get_uvmexp();
                if (uvm == NULL) return 1;
        }
#endif
        return 0;
}
Revision:	1.12
Committed:	Mon Nov 10 21:07:04 2003 UTC (20 years, 6 months ago) by tdb
Content type:	text/plain
Branch:	MAIN
Changes since 1.11:	+9 -2 lines
Log Message:	Add support for cygwin. This is a bit limited, there's a few things that can't be retrieved on cygwin such as load averages, diskio, network io, and process stats. The package compiles and runs, and both saidar and statgrab work. Taken from a patch submitted by Ron Arts <raarts@netland.nl>. Thanks Ron!
#	User	Rev	Content
1	tdb	1.5	/*
2			* i-scream central monitoring system
3	tdb	1.6	* http://www.i-scream.org
4			* Copyright (C) 2000-2003 i-scream
5	tdb	1.5	*
6			* This program is free software; you can redistribute it and/or
7			* modify it under the terms of the GNU General Public License
8			* as published by the Free Software Foundation; either version 2
9			* of the License, or (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., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
19			*/
20
21			#ifdef HAVE_CONFIG_H
22			#include "config.h"
23			#endif
24
25	pajs	1.1	#include <stdio.h>
26			#include <string.h>
27	pajs	1.3	#include <stdlib.h>
28			#include <sys/types.h>
29			#include <regex.h>
30	ats	1.9	#ifdef ALLBSD
31	ats	1.8	#include <fcntl.h>
32			#include <kvm.h>
33			#endif
34	ats	1.9	#ifdef NETBSD
35			#include <uvm/uvm_extern.h>
36			#endif
37	pajs	1.1
38	ats	1.7	#include "tools.h"
39
40	pajs	1.1	char f_read_line(FILE f, const char *string){
41			/* Max line length. 8k should be more than enough */
42			static char line[8192];
43
44	pajs	1.2	while((fgets(line, sizeof(line), f))!=NULL){
45	pajs	1.1	if(strncmp(string, line, strlen(string))==0){
46			return line;
47			}
48			}
49
50			return NULL;
51	pajs	1.3	}
52
53			char get_string_match(char line, regmatch_t *match){
54			int len=match->rm_eo - match->rm_so;
55			char *match_string=malloc(len+1);
56
57			match_string=strncpy(match_string, line+match->rm_so, len);
58			match_string[len]='\0';
59
60			return match_string;
61			}
62	ats	1.7
63	pajs	1.3	long long get_ll_match(char line, regmatch_t match){
64			char *ptr;
65			long long num;
66
67			ptr=line+match->rm_so;
68	tdb	1.12	#ifdef HAVE_ATOLL
69	pajs	1.3	num=atoll(ptr);
70	tdb	1.12	#else
71			/* Don't have atoll, so use this bodge instead */
72			{
73			long numl;
74			numl=atol(ptr);
75			num=numl;
76			}
77			#endif
78	pajs	1.3
79			return num;
80	ats	1.8	}
81
82	ats	1.9	#ifdef ALLBSD
83	ats	1.8	kvm_t *get_kvm() {
84			static kvm_t *kvmd = NULL;
85
86			if (kvmd != NULL) {
87			return kvmd;
88			}
89
90			kvmd = kvm_openfiles(NULL, NULL, NULL, O_RDONLY, NULL);
91			return kvmd;
92	pajs	1.1	}
93	pajs	1.4	#endif
94	ats	1.9
95			#ifdef NETBSD
96			struct uvmexp *get_uvmexp() {
97			static u_long addr = 0;
98			static struct uvmexp uvm;
99			kvm_t *kvmd = get_kvm();
100
101			if (kvmd == NULL) {
102			return NULL;
103			}
104
105			if (addr == 0) {
106			struct nlist symbols[] = {
107			{ "_uvmexp" },
108			{ NULL }
109			};
110
111			if (kvm_nlist(kvmd, symbols) != 0) {
112			return NULL;
113			}
114			addr = symbols[0].n_value;
115			}
116
117			if (kvm_read(kvmd, addr, &uvm, sizeof uvm) != sizeof uvm) {
118			return NULL;
119			}
120			return &uvm;
121			}
122			#endif
123
124	pajs	1.10	int statgrab_init(){
125	pajs	1.11	#ifdef ALLBSD
126			{
127			kvm_t *kvmd = get_kvm();
128			if (kvmd == NULL) return 1;
129			}
130	pajs	1.10	#endif
131			#ifdef NETBSD
132	pajs	1.11	{
133			struct uvmexp *uvm = get_uvmexp();
134			if (uvm == NULL) return 1;
135			}
136	pajs	1.10	#endif
137			return 0;
138			}