diff options
Diffstat (limited to 'manual/sysinfo.texi')
| -rw-r--r-- | manual/sysinfo.texi | 33 |
1 files changed, 19 insertions, 14 deletions
diff --git a/manual/sysinfo.texi b/manual/sysinfo.texi index 80e5841..a310240 100644 --- a/manual/sysinfo.texi +++ b/manual/sysinfo.texi @@ -349,13 +349,14 @@ provides some functions to retrieve this information portably. Traditionally Unix systems have a file named @file{/etc/fstab} which describes all possibly mounted filesystems. The @code{mount} program -uses this file to mount at startup time of the system all the necessary -filesystems. The information about all the filesystems actually mounted -is normally kept in a file named @file{/etc/mtab}. Both files share -the same syntax and it is crucial that this syntax is followed all the -time. Therefore it is best to never directly write the files. The -functions described in this section can do this and they also provide -the functionality to convert the external textual representation to the +uses this file to mount at startup time of the system all the +necessary filesystems. The information about all the filesystems +actually mounted is normally kept in a file named either +@file{/var/run/mtab} or @file{/etc/mtab}. Both files share the same +syntax and it is crucial that this syntax is followed all the time. +Therefore it is best to never directly write the files. The functions +described in this section can do this and they also provide the +functionality to convert the external textual representation to the internal representation. Note that the @file{fstab} and @file{mtab} files are maintained on a @@ -367,15 +368,19 @@ files as described herein. @vindex _PATH_FSTAB @vindex _PATH_MNTTAB -@vindex FSTAB @vindex _PATH_MOUNTED +@vindex FSTAB +@vindex MNTTAB +@vindex MOUNTED The filenames given above should never be used directly. The portable -way to handle these file is to use the macros @code{_PATH_FSTAB}, -defined in @file{fstab.h} and @code{_PATH_MNTTAB}, defined in -@file{mntent.h}, respectively. There are also two alternate macro names -@code{FSTAB} and @code{_PATH_MOUNTED} defined but both names are -deprecated and kept only for backward compatibility. The two former -names should always be used. +way to handle these file is to use the macro @code{_PATH_FSTAB}, +defined in @file{fstab.h}, or @code{_PATH_MNTTAB}, defined in +@file{mntent.h} and @file{paths.h}, for @file{fstab}; and the macro +@code{_PATH_MOUNTED}, also defined in @file{mntent.h} and +@file{paths.h}, for @file{mtab}. There are also two alternate macro +names @code{FSTAB}, @code{MNTTAB}, and @code{MOUNTED} defined but +these names are deprecated and kept only for backward compatibility. +The names @code{_PATH_MNTTAB} and @code{_PATH_MOUNTED} should always be used. @menu * fstab:: The @file{fstab} file |