1 /* -*- mode: c; c-basic-offset: 4; tab-width: 4; indent-tabs-mode: t -*-
3 * Conky, a system monitor, based on torsmo
5 * Any original torsmo code is licensed under the BSD license
7 * All code written since the fork of torsmo is licensed under the GPL
9 * Please see COPYING for details
11 * Copyright (c) 2004, Hannu Saransaari and Lauri Hakkarainen
12 * Copyright (c) 2005-2009 Brenden Matthews, Philip Kovacs, et. al.
14 * All rights reserved.
16 * This program is free software: you can redistribute it and/or modify
17 * it under the terms of the GNU General Public License as published by
18 * the Free Software Foundation, either version 3 of the License, or
19 * (at your option) any later version.
21 * This program is distributed in the hope that it will be useful,
22 * but WITHOUT ANY WARRANTY; without even the implied warranty of
23 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
24 * GNU General Public License for more details.
25 * You should have received a copy of the GNU General Public License
26 * along with this program. If not, see <http://www.gnu.org/licenses/>.
28 * vim: ts=4 sw=4 noet ai cindent syntax=c
37 #include <sys/types.h>
41 #ifdef HAVE_SYS_STATFS_H
42 #include <sys/statfs.h>
45 /* freebsd && netbsd */
46 #ifdef HAVE_SYS_PARAM_H
47 #include <sys/param.h>
49 #ifdef HAVE_SYS_MOUNT_H
50 #include <sys/mount.h>
53 #if !defined(HAVE_STRUCT_STATFS_F_FSTYPENAME) && !defined (__OpenBSD__) && !defined(__FreeBSD__)
57 #define MAX_FS_STATS 64
59 static struct fs_stat fs_stats_[MAX_FS_STATS];
60 struct fs_stat *fs_stats = fs_stats_;
62 static void update_fs_stat(struct fs_stat *fs);
64 void get_fs_type(const char *path, char *result);
66 void update_fs_stats(void)
69 static double last_fs_update = 0.0;
71 if (current_update_time - last_fs_update < 13)
74 for (i = 0; i < MAX_FS_STATS; ++i) {
75 if (fs_stats[i].set) {
76 update_fs_stat(&fs_stats[i]);
79 last_fs_update = current_update_time;
82 void clear_fs_stats(void)
85 for (i = 0; i < MAX_FS_STATS; ++i) {
86 memset(&fs_stats[i], 0, sizeof(struct fs_stat));
90 struct fs_stat *prepare_fs_stat(const char *s)
92 struct fs_stat *new = 0;
95 /* lookup existing or get new */
96 for (i = 0; i < MAX_FS_STATS; ++i) {
97 if (fs_stats[i].set) {
98 if (strncmp(fs_stats[i].path, s, DEFAULT_TEXT_BUFFER_SIZE) == 0) {
107 NORM_ERR("too many fs stats");
110 strncpy(new->path, s, DEFAULT_TEXT_BUFFER_SIZE);
116 static void update_fs_stat(struct fs_stat *fs)
120 if (statfs(fs->path, &s) == 0) {
121 fs->size = (long long)s.f_blocks * s.f_bsize;
122 /* bfree (root) or bavail (non-roots) ? */
123 fs->avail = (long long)s.f_bavail * s.f_bsize;
124 fs->free = (long long)s.f_bfree * s.f_bsize;
125 get_fs_type(fs->path, fs->type);
130 strncpy(fs->type, "unknown", DEFAULT_TEXT_BUFFER_SIZE);
131 NORM_ERR("statfs '%s': %s", fs->path, strerror(errno));
135 void get_fs_type(const char *path, char *result)
138 #if defined(HAVE_STRUCT_STATFS_F_FSTYPENAME) || defined(__FreeBSD__) || defined (__OpenBSD__)
141 if (statfs(path, &s) == 0) {
142 strncpy(result, s.f_fstypename, DEFAULT_TEXT_BUFFER_SIZE);
144 NORM_ERR("statfs '%s': %s", path, strerror(errno));
148 #else /* HAVE_STRUCT_STATFS_F_FSTYPENAME */
151 FILE *mtab = setmntent("/etc/mtab", "r");
157 NORM_ERR("setmntent /etc/mtab: %s", strerror(errno));
158 strncpy(result, "unknown", DEFAULT_TEXT_BUFFER_SIZE);
162 me = getmntent(mtab);
164 // find our path in the mtab
165 search_path = strdup(path);
167 while ((match = strcmp(search_path, me->mnt_dir))
171 fseek(mtab, 0, SEEK_SET);
172 slash = strrchr(search_path, '/');
174 CRIT_ERR(NULL, NULL, "invalid path '%s'", path);
175 if (strlen(slash) == 1) /* trailing slash */
177 else if (strlen(slash) > 1)
180 CRIT_ERR(NULL, NULL, "found a crack in the matrix!");
181 } while (strlen(search_path) > 0);
187 strncpy(result, me->mnt_type, DEFAULT_TEXT_BUFFER_SIZE);
190 #endif /* HAVE_STRUCT_STATFS_F_FSTYPENAME */
192 strncpy(result, "unknown", DEFAULT_TEXT_BUFFER_SIZE);