Hello fprint enthusiasts and professionals. I want to build a simple billing-solution with fingerprint authentication. Therefor I will use a MySQL-Database and the enroll- and verify-examples included in libfprint. The fingerprints should be stored in the database (later in a seperate table with restricted grants).
Now my problem.
When I enroll a fingerprint, the function "fp_print_data_get_data" returns
every time a bufferlength of 2414 Byte.
But when I insert this converted fingerprint in the database, there will
only be a string with max. 9 Byte (this is calculated in the
verify-program).
I think there is a problem with pointers and/or the datatype of the
db-attribute which should store the converted fingerprint.
I'm not very experienced in using pointers
(for example:
unsigned char **ret;
size_t length;
length = fp_print_data_get_data(data,ret);
)
and large db-datatypes like blob or text, so I'm not sure what I do.
Can somebody help with a tip?
I have attached the source-files to this mail, so it's easier to comprehend
my problem.
Kind regards
Alexander
fprint_01.tar.gz
Description: GNU Zip compressed data
_______________________________________________ fprint mailing list fprint@reactivated.net http://lists.reactivated.net/mailman/listinfo/fprint
