[PATCH] ld.so.8: Explain than empty entry in LD_LIBRARY_PATH means cwd

[PATCH] ld.so.8: Explain than empty entry in LD_LIBRARY_PATH means cwd

[Arkadiusz Drabczyk]

If this was ever going to change the test case is very simple:

/tmp $ touch libc.so.6
/tmp $ LD_LIBRARY_PATH=: sh
sh: error while loading shared libraries: libc.so.6: file too short

Signed-off-by: Arkadiusz Drabczyk <arkadiusz@drabczyk.org>
---
 man8/ld.so.8 | 1 +
 1 file changed, 1 insertion(+)

diff --git a/man8/ld.so.8 b/man8/ld.so.8
index 9034612..2e98b7f 100644
--- a/man8/ld.so.8
+++ b/man8/ld.so.8
@@ -319,6 +319,7 @@ A list of directories in which to search for
 ELF libraries at execution time.
 The items in the list are separated by either colons or semicolons,
 and there is no support for escaping either separator.
+A zero-length directory name indicates the current working directory.
 .IP
 This variable is ignored in secure-execution mode.
 .IP
-- 
2.9.0

Re: [PATCH] ld.so.8: Explain than empty entry in LD_LIBRARY_PATH means cwd

[Michael Kerrisk (man-pages)]

Hello Arkadiusz

On 6/24/20 12:59 AM, Arkadiusz Drabczyk wrote:
> If this was ever going to change the test case is very simple:
> 
> /tmp $ touch libc.so.6
> /tmp $ LD_LIBRARY_PATH=: sh
> sh: error while loading shared libraries: libc.so.6: file too short
> 
> Signed-off-by: Arkadiusz Drabczyk <arkadiusz@drabczyk.org>

Thanks for the patch, and the succinct test/demo in the commit 
message!

Patch applied.

Cheers,

Michael
> ---
>  man8/ld.so.8 | 1 +
>  1 file changed, 1 insertion(+)
> 
> diff --git a/man8/ld.so.8 b/man8/ld.so.8
> index 9034612..2e98b7f 100644
> --- a/man8/ld.so.8
> +++ b/man8/ld.so.8
> @@ -319,6 +319,7 @@ A list of directories in which to search for
>  ELF libraries at execution time.
>  The items in the list are separated by either colons or semicolons,
>  and there is no support for escaping either separator.
> +A zero-length directory name indicates the current working directory.
>  .IP
>  This variable is ignored in secure-execution mode.
>  .IP
> 


-- 
Michael Kerrisk
Linux man-pages maintainer; http://www.kernel.org/doc/man-pages/
Linux/UNIX System Programming Training: http://man7.org/training/