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root/i-scream/projects/libstatgrab/src/libstatgrab/tools.c
Revision: 1.8
Committed: Sun Oct 19 00:25:30 2003 UTC (20 years, 7 months ago) by ats
Content type: text/plain
Branch: MAIN
Changes since 1.7: +17 -0 lines
Log Message:
Add a helper function for opening the kvm handle. This removes a little
bit of duplicated code, and means that we don't open and close kvm
(which can potentially be quite expensive) each time we use it. This
will also be useful for NetBSD.

File Contents

# Content
1 /*
2 * i-scream central monitoring system
3 * http://www.i-scream.org
4 * Copyright (C) 2000-2003 i-scream
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 #include <stdio.h>
26 #include <string.h>
27 #include <stdlib.h>
28 #include <sys/types.h>
29 #include <regex.h>
30 #ifdef FREEBSD
31 #include <fcntl.h>
32 #include <kvm.h>
33 #endif
34
35 #include "tools.h"
36
37 char *f_read_line(FILE *f, const char *string){
38 /* Max line length. 8k should be more than enough */
39 static char line[8192];
40
41 while((fgets(line, sizeof(line), f))!=NULL){
42 if(strncmp(string, line, strlen(string))==0){
43 return line;
44 }
45 }
46
47 return NULL;
48 }
49
50 char *get_string_match(char *line, regmatch_t *match){
51 int len=match->rm_eo - match->rm_so;
52 char *match_string=malloc(len+1);
53
54 match_string=strncpy(match_string, line+match->rm_so, len);
55 match_string[len]='\0';
56
57 return match_string;
58 }
59
60 #ifdef HAVE_ATOLL
61 long long get_ll_match(char *line, regmatch_t *match){
62 char *ptr;
63 long long num;
64
65 ptr=line+match->rm_so;
66 num=atoll(ptr);
67
68 return num;
69 }
70 #endif
71
72 #ifdef FREEBSD
73 kvm_t *get_kvm() {
74 static kvm_t *kvmd = NULL;
75
76 if (kvmd != NULL) {
77 return kvmd;
78 }
79
80 kvmd = kvm_openfiles(NULL, NULL, NULL, O_RDONLY, NULL);
81 return kvmd;
82 }
83 #endif