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| #include <stdlib.h>
#include <stdio.h>
#include <unistd.h>
#include <libfprint/fprint.h>
/********************************************************
* DEFINES and CONST
*******************************************************/
/********************************************************
* global var
*******************************************************/
/********************************************************
* function prototype
*******************************************************/
struct fp_dscv_dev *discover_device(struct fp_dscv_dev **disc_devs);
struct fp_print_data *enroll(struct fp_dev *dev);
/********************************************************
* function implementation
*******************************************************/
/************ main *************************************/
int main(int argc, char **argv)
{
struct fp_dscv_dev *ddev=NULL;
struct fp_dscv_dev **devlist=NULL;
struct fp_dev *dev=NULL;
struct fp_print_data *data=NULL;
int r=1;
if(fp_init()!=0)
{
fprintf(stderr,"Libfprint Init error\n");
return EXIT_FAILURE;
}
devlist = fp_discover_devs();
if(devlist==NULL)
{
fprintf(stdout,"No scan finger devices found\n");
fp_exit();
return EXIT_FAILURE;
}
ddev=discover_device(devlist);
if(ddev==NULL)
{
fprintf(stderr,"No Devices detected.\n");
fp_dscv_devs_free(devlist);
fp_exit();
return EXIT_FAILURE;
}
dev=fp_dev_open(ddev);
fp_dscv_devs_free(devlist);
if(dev==NULL)
{
fprintf(stderr,"Could not open device\n");
fp_exit();
return EXIT_FAILURE;
}
fprintf(stdout,"Let enroll your RIGHT INDEX.\n\n");
data=enroll(dev);
if(data==NULL)
goto out;
r=fp_print_data_save(data,RIGHT_INDEX);
if(r<0)
fprintf(stderr,"Data save failed, code %d\n",r);
fp_print_data_free(data);
out:
fp_dev_close(dev);
fp_exit();
return EXIT_SUCCESS;
}
/************ discover device *************************************/
struct fp_dscv_dev *discover_device(struct fp_dscv_dev **disc_devs)
{
struct fp_dscv_dev *ddev=disc_devs[0];
struct fp_driver *drv;
if(!ddev)
return NULL;
drv=fp_dscv_dev_get_driver(ddev);
fprintf(stdout,"Found Device claimed by %s driver\n",fp_driver_get_full_name(drv));
return ddev;
}
/************ enroll *************************************/
struct fp_print_data *enroll(struct fp_dev *dev)
{
struct fp_print_data *enrolled_print=NULL;
int r,num=1;
int stg=fp_dev_get_nr_enroll_stages(dev);
fprintf(stdout,"You will need to successfully scann your finder %d time%c to"
"complete the process.\n",stg,(stg>1)?'s':' ');
do
{
struct fp_img *img=NULL;
sleep(1);
fprintf(stdout,"Scan your finger %d/%d\n",num,stg);
r=fp_enroll_finger_img(dev,&enrolled_print,&img);
fprintf(stdout,"r=%d\n",r);
if(img)
{
fp_img_save_to_file(img,"enrolled.pgm");
fprintf(stdout,"Wrote scanned image to enrolled.pgm\n");
fp_img_free(img);
}
if(r<0)
{
fprintf(stderr,"Enroll Failed with error %d\n",r);
return NULL;
}
++num;
switch(r)
{
case FP_ENROLL_COMPLETE:
fprintf(stdout,"Enroll complete!\n");
break;
case FP_ENROLL_FAIL:
fprintf(stdout,"Enroll failed, something wen't wrong\n");
return enrolled_print;
case FP_ENROLL_PASS:
fprintf(stdout,"Scan OK\n");
break;
case FP_ENROLL_RETRY:
--num;
fprintf(stdout,"Please try again\n");
break;
case FP_ENROLL_RETRY_TOO_SHORT:
--num;
fprintf(stdout,"Your swipe was too short,Please try again\n");
break;
case FP_ENROLL_RETRY_CENTER_FINGER:
--num;
fprintf(stdout,"Didn't catch, Please center your finger on sensor and try again\n");
break;
case FP_ENROLL_RETRY_REMOVE_FINGER:
--num;
fprintf(stdout,"Scan failed Please remove your finger and then try again\n");
break;
}
}
while(r != FP_ENROLL_COMPLETE);
if(enrolled_print==NULL)
{
fprintf(stderr,"Enroll complete but no print?\n");
return NULL;
}
fprintf(stdout,"Enrollment successfully completed!\n\n");
return enrolled_print;
} |
