hashmatch

Prototype: hashmatch(filename, algorthm, hash)

Return type: class

Description: Compute the hash of file filename using the hash algorithm and test if it matches hash.

This function may be used to determine whether a system has a particular version of a binary file (e.g. software patch).

Arguments:

• filename : Filename to hash, in the range "?(/.*)
• algorithm : Hash or digest algorithm, one of
  • md5
  • sha1
  • sha256
  • sha512
  • sha384
  • crypt
    
• hash : ASCII representation of hash for comparison, in the range [a-zA-Z0-9_$(){}\[\].:]+

Example:

bundle agent example
{     
classes:

  "matches" expression => hashmatch("/etc/passwd","md5","c5068b7c2b1707f8939b283a2758a691");

reports:

  matches::

    "File has correct version";

}