Hi Conrad,
Thanks for your reply.
I revert the basename.c and `< /dev/null` do the trick!
I'm also curious that will `caph_limit_stdio` break lots of program
work with some shell scripts?
--
Iblis Lin
On 11/28/2016 12:55, Conrad Meyer wrote:
Hi Iblis,
I see no such problem running 'basename $HOME' in a normal shell environment:
$ basename $HOME
cmeyer
I suppose in your use, perhaps stdin is already closed? I think this
is a limitation of caph_limit_stdio() in general.
Can you try instead:
function set_prompt {
prompt="$(basename $HOME < /dev/null) >"
}
And see if it resolves the issue?
Thanks,
Conrad
On Sun, Nov 27, 2016 at 8:33 PM, iblis <ib...@hs.ntnu.edu.tw> wrote:
Hi,
Here is a minimal config of zsh prompt invoking `basename`:
```
└─[iblis@abeing]% cat /home/ib-test/.zshenv
function set_prompt {
prompt="$(basename $HOME) >"
}
function zle-line-init zle-keymap-select {
set_prompt
zle reset-prompt
}
zle -N zle-line-init
zle -N zle-keymap-select
set_prompt
```
and launching zsh will get something like this:
```
└─[iblis@abeing]% sudo su ib-test
ib-test >basename: capsicum: Bad file descriptor
basename: capsicum: Bad file descriptor
```
To be honest, I have no idea about what casper/caspicum is. I just changed
the `basename.c` and zsh work again.
Index: basename.c
===================================================================
--- basename.c (revision 309213)
+++ basename.c (working copy)
@@ -65,7 +65,7 @@
setlocale(LC_ALL, "");
- if (caph_limit_stdio() < 0 || (cap_enter() < 0 && errno != ENOSYS))
+ if (cap_enter() < 0 && errno != ENOSYS)
err(1, "capsicum");
aflag = 0;
Any idea?
--
Iblis Lin
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