Feeds @data into an existing #GHmac.
The HMAC must still be open, that is g_hmac_get_string() or g_hmac_get_digest() must not have been called on @hmac.
buffer used to compute the checksum
2.30
See Implementation
Feeds @data into an existing #GHmac.
The HMAC must still be open, that is g_hmac_get_string() or g_hmac_get_digest() must not have been called on @hmac.