Fix several issues uncovered by Coverity (#397)

Fix several issues uncovered by Coverity (#397)

* Fix for coverity issue 436265, we should cap copy to size of destination buffer

Signed-off-by: Eivind Næss <eivnaes@yahoo.com>
* Fix for coverity issue 436262, llv6_ntoa() returns a pointer to a buffer that can be up to 64 bytes long; likely not a problem, but this will quiet coverity

Signed-off-by: Eivind Næss <eivnaes@yahoo.com>
* Fix for coverity issue 436251, not freeing path in the normal flow of the code

Signed-off-by: Eivind Næss <eivnaes@yahoo.com>
* Fixing coverity issue #436258, Digest maybe uninitialized in some paths of this code

Signed-off-by: Eivind Næss <eivnaes@yahoo.com>
* Fix for coverity issue 436254, forgot to free 's' before returning from the function?

Signed-off-by: Eivind Næss <eivnaes@yahoo.com>
* Fixing coverity issue #436251, memory leak in put_string() function

Signed-off-by: Eivind Næss <eivnaes@yahoo.com>
* Fixing coverity issue 436215, should copy at most sizeof(devname) bytes

Signed-off-by: Eivind Næss <eivnaes@yahoo.com>
* Fixing coverity issue #436203, if no authentication (or no accounting) server was found, we still need to free the allocated local instance

Signed-off-by: Eivind Næss <eivnaes@yahoo.com>
* Fixing coverity issue #436171, use of uninitialized variable

Signed-off-by: Eivind Næss <eivnaes@yahoo.com>
* Use of signed vs unsigned variable in printf for MD4Update

Signed-off-by: Eivind Næss <eivnaes@yahoo.com>
* Fixing coverity issue #436182, fixing possible buffer overrun in handling of PW_CLASS attribute

Signed-off-by: Eivind Næss <eivnaes@yahoo.com>
* Fixing coverity issue #436156

Signed-off-by: Eivind Næss <eivnaes@yahoo.com>
* Compile errors

Signed-off-by: Eivind Næss <eivnaes@yahoo.com>
[paulus@ozlabs.org - Squashed to avoid breaking bisection]

Signed-off-by: Eivind Næss <eivnaes@yahoo.com>
Signed-off-by: Paul Mackerras <paulus@ozlabs.org>