#2 Check return codes everywhere

[Markus Elfring]

Some checks for return codes are missing.

Example:
Please add more error handling for null pointers from
"malloc" in the function "make_pattern".
http://cvs.sourceforge.net/viewcvs.py/dcfldd/dcfldd/pattern.c?rev=1.3&view=markup

[Nicholas Harbour]

Logged In: YES
user_id=14101

Do you understand the definition of a "Bug"?

[Markus Elfring]

Logged In: YES
user_id=572001

Yes, of course.
It is a bug for me if the return value from an important
function is ignored.