how to verify a P12 certificate using openssl?

Can anyone tell me how to verif开发者_如何学Cy the Password-based P12 file using openssl? Logic or sample code will be much helpful.

You can find a code sample that :
- opens a pkcs#12 file with password
- extracts the private key and certificates

in the openssl source code at :

./demos/pkcs12/pkread.c