On 05/31/2012 05:57 AM, Philipp Hahn wrote: > Hello, > > I find parsing the output of "ls -l" very suspect and fragile, As do I. > since its > output heaviely depends on the environment: SELinux, ACLs, That only affects the 11th character, which we are stripping. > locale. That affects the date string and other elements later on in the line, but not the mode string. This _particular_ use of 'ls -l' is portable, as POSIX guarantees a consistent interpretation of the first 11 bytes of each line (it's not until later in the line that you indeed run into fragile parsing aspects, even under POSIX rules). > Perhaps using /usr/bin/stat would be better, but I don't know how > available /usr/bin/stat" is on non-Linux-platforms (on my Debian system it's > in coreutils). I agree that stat(1) would be safer, but it is less portable, and we want this validation script to run everywhere. -- Eric Blake eblake@xxxxxxxxxx +1-919-301-3266 Libvirt virtualization library http://libvirt.org
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