A table for errno values by linux sockets?

I was wondering if anyone knows of good tables that actually give the error code's number, symbolic name and explanation.

http://www.hmug.org/man/2/connect.php
has all the symbolic names and explanations, but no error codes. Uner linux, I can get the error codes from the errno variable, but I can't link the number with the symbolic names nor the description.

But the man page gives the symbolic names.
And the symbolic name to numeric value translation is in errno.h.
Also, look at perror() for printing out error messages, and strerror() for getting a descriptive text.

I found the symbolic names and numbers from the errno.h file and strerror also gives me a hint about the error. Thanks.