Functions kmip_node_get_structure_element_count() and
kmip_node_get_structure_element_by_tag_count() return an unsigned int,
but the error case returns -1. This leads to a wrap around actually
returning 0xffffffff which the caller might interpret as a very large
number of elements.
Return 0 in case of an error instead.
Also fix some callers to not unconditionally subtract -1 from the
returned value, but return an error if the returned value is zero.
These callers check the preconditions upfront, so the error case
won't be hit anyway.
Assisted-by: IBM Bob:2.0.0
Signed-off-by: Ingo Franzki <ifranzki@linux.ibm.com>
Reviewed-by: Finn Callies <fcallies@linux.ibm.com>
Signed-off-by: Jan Höppner <hoeppner@linux.ibm.com>
libkmipclient is a shared library that provides an KMIP client to
communicate with an KMIP server. KMIP stands for Key Management
Interoperability Protocol, and is an extensible communication protocol
that defines message formats for the manipulation of cryptographic
keys on a key management server.
Signed-off-by: Ingo Franzki <ifranzki@linux.ibm.com>
Signed-off-by: Jan Höppner <hoeppner@linux.ibm.com>
