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;
}

#ifdef HAVE_ATOLL
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;
}
#endif

#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

Revision:	1.9
Committed:	Sun Oct 19 02:03:02 2003 UTC (20 years, 7 months ago) by ats
Content type:	text/plain
Branch:	MAIN
Changes since 1.8:	+35 -2 lines
Log Message:	Initial support for NetBSD. This adds NetBSD support for everything except diskio stats (since they're even more disturbingly complex to get at on NetBSD than the three OSs we already support). Tested against NetBSD 1.6 on i386.
#	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	1.4	#ifdef HAVE_ATOLL
64	pajs	1.3	long long get_ll_match(char line, regmatch_t match){
65			char *ptr;
66			long long num;
67
68			ptr=line+match->rm_so;
69			num=atoll(ptr);
70
71			return num;
72	ats	1.8	}
73			#endif
74
75	ats	1.9	#ifdef ALLBSD
76	ats	1.8	kvm_t *get_kvm() {
77			static kvm_t *kvmd = NULL;
78
79			if (kvmd != NULL) {
80			return kvmd;
81			}
82
83			kvmd = kvm_openfiles(NULL, NULL, NULL, O_RDONLY, NULL);
84			return kvmd;
85	pajs	1.1	}
86	pajs	1.4	#endif
87	ats	1.9
88			#ifdef NETBSD
89			struct uvmexp *get_uvmexp() {
90			static u_long addr = 0;
91			static struct uvmexp uvm;
92			kvm_t *kvmd = get_kvm();
93
94			if (kvmd == NULL) {
95			return NULL;
96			}
97
98			if (addr == 0) {
99			struct nlist symbols[] = {
100			{ "_uvmexp" },
101			{ NULL }
102			};
103
104			if (kvm_nlist(kvmd, symbols) != 0) {
105			return NULL;
106			}
107			addr = symbols[0].n_value;
108			}
109
110			if (kvm_read(kvmd, addr, &uvm, sizeof uvm) != sizeof uvm) {
111			return NULL;
112			}
113			return &uvm;
114			}
115			#endif
116