[TYPO3-core] RFC: Treat symlinks as executable

[Martin Kutschker]

Michael Stucki schrieb:
> This is a SVN patch request.
> 
> Problem:
> There are various places where programs are checked for being executable.
> However, this does not work if the program is just a symlink.
> 
> This is usually needed in larger hosting environments when
> safe_mode_exec_dir is used and allowed programs are placed in a special
> directory. Currently they would all need to be copied, hence they won't be
> upgraded automatically by the systems package manager.
> 
> Solution:
> If is_executable() is false, check using is_link() and accept this as well.

No use readlink() to resolve the target first:

@is_executable($path.$cmd)
||
(@is_link($path.$cmd) && @is_executable(readlink($path.$cmd))

Masi