1 /****************************************************************************
2 * Utils for check_disk
3 *
4 * License: GPL
5 * Copyright (c) 1999-2006 nagios-plugins team
6 *
7 * Last Modified: $Date$
8 *
9 * Description:
10 *
11 * This file contains utilities for check_disk. These are tested by libtap
12 *
13 * License Information:
14 *
15 * This program is free software; you can redistribute it and/or modify
16 * it under the terms of the GNU General Public License as published by
17 * the Free Software Foundation; either version 2 of the License, or
18 * (at your option) any later version.
19 *
20 * This program is distributed in the hope that it will be useful,
21 * but WITHOUT ANY WARRANTY; without even the implied warranty of
22 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
23 * GNU General Public License for more details.
24 *
25 * You should have received a copy of the GNU General Public License
26 * along with this program; if not, write to the Free Software
27 * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
28 *
29 * $Id$
30 *
31 *****************************************************************************/
33 #include "common.h"
34 #include "utils_disk.h"
36 void
37 np_add_name (struct name_list **list, const char *name)
38 {
39 struct name_list *new_entry;
40 new_entry = (struct name_list *) malloc (sizeof *new_entry);
41 new_entry->name = (char *) name;
42 new_entry->next = *list;
43 *list = new_entry;
44 }
46 /* Initialises a new parameter at the end of list */
47 struct parameter_list *
48 np_add_parameter(struct parameter_list **list, const char *name)
49 {
50 struct parameter_list *current = *list;
51 struct parameter_list *new_path;
52 new_path = (struct parameter_list *) malloc (sizeof *new_path);
53 new_path->name = (char *) name;
54 new_path->best_match = NULL;
55 new_path->name_next = NULL;
56 new_path->freespace_bytes = NULL;
57 new_path->freespace_units = NULL;
58 new_path->freespace_percent = NULL;
59 new_path->usedspace_bytes = NULL;
60 new_path->usedspace_units = NULL;
61 new_path->usedspace_percent = NULL;
62 new_path->usedinodes_percent = NULL;
63 new_path->freeinodes_percent = NULL;
64 new_path->group = NULL;
66 if (current == NULL) {
67 *list = new_path;
68 } else {
69 while (current->name_next) {
70 current = current->name_next;
71 }
72 current->name_next = new_path;
73 }
74 return new_path;
75 }
77 /* returns a pointer to the struct found in the list */
78 struct parameter_list *
79 np_find_parameter(struct parameter_list *list, const char *name)
80 {
81 struct parameter_list *temp_list;
82 for (temp_list = list; temp_list; temp_list = temp_list->name_next) {
83 if (! strcmp(temp_list->name, name))
84 return temp_list;
85 }
87 return NULL;
88 }
90 void
91 np_set_best_match(struct parameter_list *desired, struct mount_entry *mount_list, int exact)
92 {
93 struct parameter_list *d;
94 for (d = desired; d; d= d->name_next) {
95 if (! d->best_match) {
96 struct mount_entry *me;
97 size_t name_len = strlen(d->name);
98 size_t best_match_len = 0;
99 struct mount_entry *best_match = NULL;
101 /* set best match if path name exactly matches a mounted device name */
102 for (me = mount_list; me; me = me->me_next) {
103 if (strcmp(me->me_devname, d->name)==0)
104 best_match = me;
105 }
107 /* set best match by directory name if no match was found by devname */
108 if (! best_match) {
109 for (me = mount_list; me; me = me->me_next) {
110 size_t len = strlen (me->me_mountdir);
111 if ((exact == FALSE && (best_match_len <= len && len <= name_len &&
112 (len == 1 || strncmp (me->me_mountdir, d->name, len) == 0)))
113 || (exact == TRUE && strcmp(me->me_mountdir, d->name)==0))
114 {
115 best_match = me;
116 best_match_len = len;
117 }
118 }
119 }
121 if (best_match) {
122 d->best_match = best_match;
123 } else {
124 d->best_match = NULL; /* Not sure why this is needed as it should be null on initialisation */
125 }
126 }
127 }
128 }
130 /* Returns TRUE if name is in list */
131 int
132 np_find_name (struct name_list *list, const char *name)
133 {
134 const struct name_list *n;
136 if (list == NULL || name == NULL) {
137 return FALSE;
138 }
139 for (n = list; n; n = n->next) {
140 if (!strcmp(name, n->name)) {
141 return TRUE;
142 }
143 }
144 return FALSE;
145 }
147 int
148 np_seen_name(struct name_list *list, const char *name)
149 {
150 const struct name_list *s;
151 for (s = list; s; s=s->next) {
152 if (!strcmp(s->name, name)) {
153 return TRUE;
154 }
155 }
156 return FALSE;
157 }
159 int
160 np_regex_match_mount_entry (struct mount_entry* me, regex_t* re)
161 {
162 if (regexec(re, me->me_devname, (size_t) 0, NULL, 0) == 0 ||
163 regexec(re, me->me_mountdir, (size_t) 0, NULL, 0) == 0 ) {
164 return true;
165 } else {
166 return false;
167 }
168 }