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Decode the first two fstab fields with strunvis(3). This allows having spaces

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in devices and mount paths, encoded as \s or \040.

PR:		bin/117687
Submitted by:	Martin Kammerhofer
Discussed on:	arch
This commit is contained in:
Stefan Farfeleder 2012-10-11 07:54:29 +00:00
parent a31c8b58b5
commit da0878836b
2 changed files with 15 additions and 1 deletions
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5
lib/libc/gen/fstab.c
View File

@ -46,6 +46,7 @@ __FBSDID("$FreeBSD$");
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
#include <vis.h>
#include "un-namespace.h"
static FILE *_fs_fp;
@ -149,11 +150,15 @@ fstabscan(void)
/* OLD_STYLE_FSTAB */
while ((cp = strsep(&p, " \t\n")) != NULL && *cp == '\0')
;
if (strunvis(cp, cp) < 0)
goto bad;
_fs_fstab.fs_spec = cp;
if (!_fs_fstab.fs_spec || *_fs_fstab.fs_spec == '#')
continue;
while ((cp = strsep(&p, " \t\n")) != NULL && *cp == '\0')
;
if (strunvis(cp, cp) < 0)
goto bad;
_fs_fstab.fs_file = cp;
fixfsfile();
while ((cp = strsep(&p, " \t\n")) != NULL && *cp == '\0')

11
share/man/man5/fstab.5
View File

@ -32,7 +32,7 @@
.\" @(#)fstab.5 8.1 (Berkeley) 6/5/93
.\" $FreeBSD$
.\"
.Dd June 7, 2011
.Dd October 11, 2012
.Dt FSTAB 5
.Os
.Sh NAME
@ -66,12 +66,20 @@ The first field,
.Pq Fa fs_spec ,
describes the special device or
remote file system to be mounted.
The contents are decoded by the
.Xr strunvis 3
function.
This allows using spaces or tabs in the device name which would be
interpreted as field separators otherwise.
.Pp
The second field,
.Pq Fa fs_file ,
describes the mount point for the file system.
For swap partitions, this field should be specified as
.Dq none .
The contents are decoded by the
.Xr strunvis 3
function, as above.
.Pp
The third field,
.Pq Fa fs_vfstype ,
@ -338,6 +346,7 @@ resides in
.Xr mount 8 ,
.Xr quotacheck 8 ,
.Xr quotaon 8 ,
.Xr strunvis 3 ,
.Xr swapon 8 ,
.Xr umount 8
.Sh HISTORY