there are a number of similar posts but I am trying to understand a little more than what those offer. My curl commandline works fine and am able to talk to the server and get the data I want. The command looks like
curl -v --tlsv1.2 --cert ./service_cert.pem --key ./service_private.key "https://myserver"
But when I try to run my C program and examine the http client object I see this
errorBuffer = "NSS: client certificate not found (nickname not specified)
reading further I realized I have libcurl built with NSS which doesn't support reading cert from a flat file ( .pem)
How is then command line curl utility able to read the pem file ?