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| author | Joe Hershberger <joe.hershberger@ni.com> | 2012-08-17 10:26:30 +0000 |
|---|---|---|
| committer | Wolfgang Denk <wd@denx.de> | 2012-09-02 20:31:21 +0200 |
| commit | a005f19eff946454985785788c344f10616d571e (patch) | |
| tree | 0399c46a5551a7a83c37f75574891126019ef378 /fs | |
| parent | 641b0d374eeea65778bf8cb2107064c2aff195eb (diff) | |
| download | u-boot-a005f19eff946454985785788c344f10616d571e.zip u-boot-a005f19eff946454985785788c344f10616d571e.tar.gz u-boot-a005f19eff946454985785788c344f10616d571e.tar.bz2 | |
hush: Don't parse the contents of a dereferenced var
When a variable which contains a user-supplied value is dereferenced
(e.g. to be echo'ed), make sure that the value is not further parsed
by hush.
Set the hush local variable "HUSH_NO_EVAL=1" to enable this behavior.
Without this patch, a sequence like this occurs:
Panda # env set my_user_string Bob\'s favorite device
Panda # print my_user_string
my_user_string=Bob's favorite device
Panda # echo $my_user_string
syntax error hush.c:3007
With this patch, it looks like this:
Panda # HUSH_NO_EVAL=1
Panda # env set my_user_string Bob\'s favorite device
Panda # print my_user_string
my_user_string=Bob's favorite device
Panda # echo $my_user_string
Bob's favorite device
Signed-off-by: Joe Hershberger <joe.hershberger@ni.com>
Diffstat (limited to 'fs')
0 files changed, 0 insertions, 0 deletions