1 /* Conky, a system monitor, based on torsmo
3 * Any original torsmo code is licensed under the BSD license
5 * All code written since the fork of torsmo is licensed under the GPL
7 * Please see COPYING for details
9 * Copyright (c) 2004, Hannu Saransaari and Lauri Hakkarainen
10 * Copyright (c) 2005-2009 Brenden Matthews, Philip Kovacs, et. al.
12 * All rights reserved.
14 * This program is free software: you can redistribute it and/or modify
15 * it under the terms of the GNU General Public License as published by
16 * the Free Software Foundation, either version 3 of the License, or
17 * (at your option) any later version.
19 * This program is distributed in the hope that it will be useful,
20 * but WITHOUT ANY WARRANTY; without even the implied warranty of
21 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
22 * GNU General Public License for more details.
23 * You should have received a copy of the GNU General Public License
24 * along with this program. If not, see <http://www.gnu.org/licenses/>.
26 * vim: ts=4 sw=4 noet ai cindent syntax=c
35 #include <sys/types.h>
39 #ifdef HAVE_SYS_STATFS_H
40 #include <sys/statfs.h>
43 /* freebsd && netbsd */
44 #ifdef HAVE_SYS_PARAM_H
45 #include <sys/param.h>
47 #ifdef HAVE_SYS_MOUNT_H
48 #include <sys/mount.h>
51 #if !defined(HAVE_STRUCT_STATFS_F_FSTYPENAME) && !defined (__OpenBSD__) && !defined(__FreeBSD__)
55 #define MAX_FS_STATS 64
57 static struct fs_stat fs_stats_[MAX_FS_STATS];
58 struct fs_stat *fs_stats = fs_stats_;
60 static void update_fs_stat(struct fs_stat *fs);
62 void get_fs_type(const char *path, char *result);
64 void update_fs_stats(void)
68 for (i = 0; i < MAX_FS_STATS; ++i) {
69 if (fs_stats[i].set) {
70 update_fs_stat(&fs_stats[i]);
75 void clear_fs_stats(void)
78 for (i = 0; i < MAX_FS_STATS; ++i) {
79 memset(&fs_stats[i], 0, sizeof(struct fs_stat));
83 struct fs_stat *prepare_fs_stat(const char *s)
85 struct fs_stat *new = 0;
88 /* lookup existing or get new */
89 for (i = 0; i < MAX_FS_STATS; ++i) {
90 if (fs_stats[i].set) {
91 if (strncmp(fs_stats[i].path, s, DEFAULT_TEXT_BUFFER_SIZE) == 0) {
100 ERR("too many fs stats");
103 strncpy(new->path, s, DEFAULT_TEXT_BUFFER_SIZE);
109 static void update_fs_stat(struct fs_stat *fs)
113 if (statfs(fs->path, &s) == 0) {
114 fs->size = (long long)s.f_blocks * s.f_bsize;
115 /* bfree (root) or bavail (non-roots) ? */
116 fs->avail = (long long)s.f_bavail * s.f_bsize;
117 fs->free = (long long)s.f_bfree * s.f_bsize;
118 get_fs_type(fs->path, fs->type);
123 strncpy(fs->type, "unknown", DEFAULT_TEXT_BUFFER_SIZE);
124 ERR("statfs '%s': %s", fs->path, strerror(errno));
128 void get_fs_type(const char *path, char *result)
131 #if defined(HAVE_STRUCT_STATFS_F_FSTYPENAME) || defined(__FreeBSD__) || defined (__OpenBSD__)
134 if (statfs(path, &s) == 0) {
135 strncpy(result, s.f_fstypename, DEFAULT_TEXT_BUFFER_SIZE);
137 ERR("statfs '%s': %s", path, strerror(errno));
141 #else /* HAVE_STRUCT_STATFS_F_FSTYPENAME */
144 FILE *mtab = setmntent("/etc/mtab", "r");
150 ERR("setmntent /etc/mtab: %s", strerror(errno));
151 strncpy(result, "unknown", DEFAULT_TEXT_BUFFER_SIZE);
155 me = getmntent(mtab);
157 // find our path in the mtab
158 search_path = strdup(path);
160 while ((match = strcmp(search_path, me->mnt_dir))
164 fseek(mtab, 0, SEEK_SET);
165 slash = strrchr(search_path, '/');
167 CRIT_ERR(NULL, NULL, "invalid path '%s'", path);
168 if (strlen(slash) == 1) /* trailing slash */
170 else if (strlen(slash) > 1)
173 CRIT_ERR(NULL, NULL, "found a crack in the matrix!");
174 } while (strlen(search_path) > 0);
180 strncpy(result, me->mnt_type, DEFAULT_TEXT_BUFFER_SIZE);
183 #endif /* HAVE_STRUCT_STATFS_F_FSTYPENAME */
185 strncpy(result, "unknown", DEFAULT_TEXT_BUFFER_SIZE);