From: Leonid Krivoshein <klark.devel@gmail.com>
To: make-initrd@lists.altlinux.org
Subject: Re: [make-initrd] [PATCH v6 18/22] bootchain-interactive: initial feature
Date: Tue, 26 Oct 2021 23:25:23 +0300
Message-ID: <5331e500-a68a-bb54-9b43-5729df4c69fc@gmail.com> (raw)
In-Reply-To: <203cc85f-b12f-f3aa-1623-c6d958ef8e26@gmail.com>
26.10.2021 22:54, Leonid Krivoshein пишет:
>> $ echo $HOME
>> /home/legion
>> $ text='$HOME'
>> $ eval "v=\"$text\""
>> $ echo $v
>> /home/legion
>> $ eval "v=\"\$text\""
>> $ echo $v
>> $HOME
>
> Да, эту идею я уже понял. Но, может, лучше с set?
>
> $ text="..'; cat /etc/passwd; '.."
> $ eval "v='$x'"
> (уф, не буду показывать)!..
>
> Это я к тому, что разве \" гарантирует невыполнение произвольного кода?
> Я же мог и двойные кавычки использовать вместо одинарных:
>
> $ text="..\"; cat /etc/passwd; \".."
> $ eval "v=\"$x\""
> (уф, тоже не буду показывать)!..
Не, вот так всё нормально:
$ text="..\"; cat /etc/passwd; \".."
$ eval "v=\"\$text\""
Это я ошибся.
--
Best regards,
Leonid Krivoshein.
next prev parent reply other threads:[~2021-10-26 20:25 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-10-26 18:58 ` Alexey Gladkov
2021-10-26 19:54 ` Leonid Krivoshein
2021-10-26 20:25 ` Leonid Krivoshein [this message]
2021-10-26 19:03 ` Alexey Gladkov
2021-10-26 20:07 ` Leonid Krivoshein
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=5331e500-a68a-bb54-9b43-5729df4c69fc@gmail.com \
--to=klark.devel@gmail.com \
--cc=make-initrd@lists.altlinux.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Make-initrd development discussion
This inbox may be cloned and mirrored by anyone:
git clone --mirror http://lore.altlinux.org/make-initrd/0 make-initrd/git/0.git
# If you have public-inbox 1.1+ installed, you may
# initialize and index your mirror using the following commands:
public-inbox-init -V2 make-initrd make-initrd/ http://lore.altlinux.org/make-initrd \
make-initrd@lists.altlinux.org make-initrd@lists.altlinux.ru make-initrd@lists.altlinux.com
public-inbox-index make-initrd
Example config snippet for mirrors.
Newsgroup available over NNTP:
nntp://lore.altlinux.org/org.altlinux.lists.make-initrd
AGPL code for this site: git clone https://public-inbox.org/public-inbox.git