Hi!
I have found that the fsusage.c (where get_fs_usage is defined)
is compiled differently in versions between nagios plugins 1.4 and 1.4.15.
I have compiled both plugins on same platform.
In 1.4, fsusage.c is compiled in the route where most of the stats are
retrieved by 'full_read'
150 struct filsys fsd;
151 int fd;
152
153 if (! disk)
154 {
155 errno = 0;
156 return -1;
157 }
158
159 fd = open (disk, O_RDONLY);
160 if (fd < 0)
161 return -1;
162 lseek (fd, (off_t) SUPERBOFF, 0);
163 if (full_read (fd, (char *) &fsd, sizeof fsd) != sizeof fsd)
164 {
165 close (fd);
166 return -1;
167 }
168 close (fd);
'blocksize' is overlapped by 'statfs'
182 #ifdef STAT_STATFS2_BSIZE /* 4.3BSD, SunOS 4, HP-UX, AIX */
185 struct statfs fsd;
186
187 if (statfs (path, &fsd) < 0)
188 return -1;
189
190 fsp->fsu_blocksize = PROPAGATE_ALL_ONES (fsd.f_bsize);
However , in v 1.4.15 , fsusage.c is compiled in the route where all the stats
are
retrieved by 'statfs'
171 #elif defined STAT_STATFS2_BSIZE /* 4.3BSD, SunOS 4, HP-UX, AIX
*/
173
174 struct statfs fsd;
175
176 if (statfs (file, &fsd) < 0)
177 return -1;
178
179 fsp->fsu_blocksize = PROPAGATE_ALL_ONES (fsd.f_bsize);
then it goes into the route,
232 #if (defined STAT_STATVFS \
233 || (!defined STAT_STATFS2_FS_DATA && !defined STAT_READ_FILSYS))
234
236 fsp->fsu_blocks = PROPAGATE_ALL_ONES (fsd.f_blocks);
237 fsp->fsu_bfree = PROPAGATE_ALL_ONES (fsd.f_bfree);
238 fsp->fsu_bavail = PROPAGATE_TOP_BIT (fsd.f_bavail);
239 fsp->fsu_bavail_top_bit_set = EXTRACT_TOP_BIT (fsd.f_bavail) != 0;
240 fsp->fsu_files = PROPAGATE_ALL_ONES (fsd.f_files);
241 fsp->fsu_ffree = PROPAGATE_ALL_ONES (fsd.f_ffree);
242
243 #endif
This difference cases the difference in the output.
(v 1.4)
DISK OK - free space: / 17211 MB (35%);| /=32385MB;34716;44635;0;49595
(v 1.4.15)
DISK OK - free space: / 17210 MB (36% inode=98%);| /=29825MB;34716;44635;0;49595
This seems to be caused in the configure where all the compile
options are decided. I am trying to figure out why there is a
difference in the compile option. The inode prompts correctly
in RHEL 4.
It would be helpful if someone can give me a hand with this...
Thanks,
Yu
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