2008-02-20 20:30:45 +00:00
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/* Conky, a system monitor, based on torsmo
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2005-08-05 01:06:17 +00:00
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*
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2007-08-10 19:53:44 +00:00
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* Any original torsmo code is licensed under the BSD license
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*
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* All code written since the fork of torsmo is licensed under the GPL
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*
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* Please see COPYING for details
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*
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* Copyright (c) 2004, Hannu Saransaari and Lauri Hakkarainen
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2008-03-31 04:56:39 +00:00
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* Copyright (c) 2005-2008 Brenden Matthews, Philip Kovacs, et. al.
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2008-02-20 20:30:45 +00:00
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* (see AUTHORS)
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2007-08-10 19:53:44 +00:00
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* All rights reserved.
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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* You should have received a copy of the GNU General Public License
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2008-02-20 20:30:45 +00:00
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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2005-08-05 01:06:17 +00:00
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*
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2008-02-20 20:30:45 +00:00
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* $Id$ */
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2005-08-05 01:06:17 +00:00
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2005-07-20 00:30:40 +00:00
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#include "conky.h"
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#include <unistd.h>
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#include <errno.h>
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#include <sys/types.h>
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#include <fcntl.h>
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/* linux */
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#ifdef HAVE_SYS_STATFS_H
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#include <sys/statfs.h>
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#endif
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/* freebsd && netbsd */
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#ifdef HAVE_SYS_PARAM_H
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#include <sys/param.h>
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#endif
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#ifdef HAVE_SYS_MOUNT_H
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#include <sys/mount.h>
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#endif
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2008-10-08 11:41:16 +00:00
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#if !defined(HAVE_STRUCT_STATFS_F_FSTYPENAME) && !defined (__OpenBSD__) && !defined(__FreeBSD__)
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2008-03-18 00:23:16 +00:00
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#include <mntent.h>
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#endif
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2005-11-01 03:19:34 +00:00
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#define MAX_FS_STATS 64
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2005-07-20 00:30:40 +00:00
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2005-11-01 03:19:34 +00:00
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static struct fs_stat fs_stats_[MAX_FS_STATS];
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2005-07-20 00:30:40 +00:00
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struct fs_stat *fs_stats = fs_stats_;
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2008-02-20 20:30:45 +00:00
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static void update_fs_stat(struct fs_stat *fs);
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2005-11-01 03:19:34 +00:00
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2008-03-19 22:28:23 +00:00
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void get_fs_type(const char *path, char *result);
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2008-03-18 00:23:16 +00:00
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2008-03-29 02:01:03 +00:00
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void update_fs_stats(void)
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2005-07-20 00:30:40 +00:00
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{
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2005-11-01 03:19:34 +00:00
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unsigned i;
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2008-02-20 20:30:45 +00:00
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for (i = 0; i < MAX_FS_STATS; ++i) {
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2008-03-19 22:28:23 +00:00
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if (fs_stats[i].set) {
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2005-11-01 03:19:34 +00:00
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update_fs_stat(&fs_stats[i]);
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2008-02-20 20:30:45 +00:00
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}
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}
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2005-07-20 00:30:40 +00:00
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}
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2008-03-29 02:01:03 +00:00
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void clear_fs_stats(void)
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2005-07-20 00:30:40 +00:00
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{
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2005-11-01 03:19:34 +00:00
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unsigned i;
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2008-02-20 20:30:45 +00:00
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for (i = 0; i < MAX_FS_STATS; ++i) {
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2008-03-19 22:28:23 +00:00
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memset(&fs_stats[i], 0, sizeof(struct fs_stat));
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2008-02-20 20:30:45 +00:00
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}
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2005-07-20 00:30:40 +00:00
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}
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2005-11-01 03:19:34 +00:00
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struct fs_stat *prepare_fs_stat(const char *s)
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2005-08-22 00:24:24 +00:00
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{
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2008-02-20 20:30:45 +00:00
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struct fs_stat *new = 0;
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2005-11-01 03:19:34 +00:00
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unsigned i;
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2008-02-20 20:30:45 +00:00
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2005-11-01 03:19:34 +00:00
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/* lookup existing or get new */
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2008-02-20 20:30:45 +00:00
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for (i = 0; i < MAX_FS_STATS; ++i) {
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2008-03-19 22:28:23 +00:00
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if (fs_stats[i].set) {
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if (strncmp(fs_stats[i].path, s, DEFAULT_TEXT_BUFFER_SIZE) == 0) {
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2005-11-01 03:19:34 +00:00
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return &fs_stats[i];
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2008-02-20 20:30:45 +00:00
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}
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} else {
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2005-11-01 03:19:34 +00:00
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new = &fs_stats[i];
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2008-02-20 20:30:45 +00:00
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}
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2005-08-22 00:24:24 +00:00
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}
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2005-11-01 03:19:34 +00:00
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/* new path */
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2008-02-20 20:30:45 +00:00
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if (!new) {
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2005-11-01 03:19:34 +00:00
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ERR("too many fs stats");
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return 0;
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2005-08-22 00:24:24 +00:00
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}
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2008-03-19 22:28:23 +00:00
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strncpy(new->path, s, DEFAULT_TEXT_BUFFER_SIZE);
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new->set = 1;
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2005-11-01 03:19:34 +00:00
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update_fs_stat(new);
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return new;
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}
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2005-08-22 00:24:24 +00:00
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2008-02-20 20:30:45 +00:00
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static void update_fs_stat(struct fs_stat *fs)
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2005-07-20 00:30:40 +00:00
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{
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2005-11-01 03:19:34 +00:00
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struct statfs s;
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2008-02-20 20:30:45 +00:00
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if (statfs(fs->path, &s) == 0) {
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2008-03-19 22:28:23 +00:00
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fs->size = (long long)s.f_blocks * s.f_bsize;
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2005-11-01 03:19:34 +00:00
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/* bfree (root) or bavail (non-roots) ? */
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2008-03-19 22:28:23 +00:00
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fs->avail = (long long)s.f_bavail * s.f_bsize;
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fs->free = (long long)s.f_bfree * s.f_bsize;
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get_fs_type(fs->path, fs->type);
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2005-11-01 03:19:34 +00:00
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} else {
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fs->size = 0;
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fs->avail = 0;
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2005-12-01 06:32:14 +00:00
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fs->free = 0;
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2008-03-19 22:28:23 +00:00
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strncpy(fs->type, "unknown", DEFAULT_TEXT_BUFFER_SIZE);
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2005-11-01 03:19:34 +00:00
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ERR("statfs '%s': %s", fs->path, strerror(errno));
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2005-07-20 00:30:40 +00:00
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}
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}
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2008-03-18 00:23:16 +00:00
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2008-03-19 22:28:23 +00:00
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void get_fs_type(const char *path, char *result)
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2008-03-18 00:23:16 +00:00
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{
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2008-10-08 11:41:16 +00:00
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#if defined(HAVE_STRUCT_STATFS_F_FSTYPENAME) || defined(__FreeBSD__) || defined (__OpenBSD__)
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2008-03-18 00:23:16 +00:00
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struct statfs s;
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2008-03-19 22:28:23 +00:00
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if (statfs(path, &s) == 0) {
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strncpy(result, s.f_fstypename, DEFAULT_TEXT_BUFFER_SIZE);
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} else {
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2008-03-18 00:23:16 +00:00
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ERR("statfs '%s': %s", path, strerror(errno));
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2008-03-19 22:28:23 +00:00
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}
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return;
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2008-03-18 00:23:16 +00:00
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2008-03-19 22:28:23 +00:00
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#else /* HAVE_STRUCT_STATFS_F_FSTYPENAME */
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2008-03-18 00:23:16 +00:00
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2008-03-29 06:24:04 +00:00
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struct mntent *me;
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2008-03-19 22:28:23 +00:00
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FILE *mtab = setmntent("/etc/mtab", "r");
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2008-03-29 11:09:47 +00:00
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char *search_path;
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int match;
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char *slash;
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2008-03-18 00:23:16 +00:00
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2008-03-19 22:28:23 +00:00
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if (mtab == NULL) {
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2008-03-18 00:23:16 +00:00
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ERR("setmntent /etc/mtab: %s", strerror(errno));
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2008-03-19 22:28:23 +00:00
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strncpy(result, "unknown", DEFAULT_TEXT_BUFFER_SIZE);
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return;
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2008-03-18 00:23:16 +00:00
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}
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2008-03-29 06:24:04 +00:00
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me = getmntent(mtab);
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2008-03-18 00:23:16 +00:00
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// find our path in the mtab
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2008-03-29 11:09:47 +00:00
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search_path = strdup(path);
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do {
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while ((match = strcmp(search_path, me->mnt_dir))
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&& getmntent(mtab));
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if (!match)
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break;
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fseek(mtab, 0, SEEK_SET);
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slash = strrchr(search_path, '/');
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if (slash == NULL)
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CRIT_ERR("invalid path '%s'", path);
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if (strlen(slash) == 1) /* trailing slash */
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*(slash) = '\0';
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else if (strlen(slash) > 1)
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*(slash + 1) = '\0';
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else
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CRIT_ERR("found a crack in the matrix!");
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} while (strlen(search_path) > 0);
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free(search_path);
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2008-03-18 00:23:16 +00:00
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endmntent(mtab);
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2008-03-29 11:09:47 +00:00
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if (me && !match) {
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2008-03-19 22:28:23 +00:00
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strncpy(result, me->mnt_type, DEFAULT_TEXT_BUFFER_SIZE);
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return;
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}
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#endif /* HAVE_STRUCT_STATFS_F_FSTYPENAME */
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2008-03-18 00:23:16 +00:00
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2008-03-19 22:28:23 +00:00
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strncpy(result, "unknown", DEFAULT_TEXT_BUFFER_SIZE);
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2008-03-18 00:23:16 +00:00
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}
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