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Verification infrastructure

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Similar model to enrollment.
This commit is contained in:
Daniel Drake
2007-10-14 00:58:45 +01:00
parent 39271b4fe5
commit 68bdfc7868
4 changed files with 100 additions and 2 deletions
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56
examples/verify.c
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@@ -85,10 +85,45 @@ struct fp_print_data *enroll(struct fp_dev *dev) {
return NULL;
}
printf("Enrollment completed!\n");
printf("Enrollment completed!\n\n");
return enrolled_print;
}
int verify(struct fp_dev *dev, struct fp_print_data *data)
{
int r;
do {
sleep(1);
printf("\nScan your finger now.\n");
r = fp_verify_finger(dev, data);
if (r < 0) {
printf("verification failed with error %d :(\n", r);
return r;
}
switch (r) {
case FP_VERIFY_NO_MATCH:
printf("NO MATCH!\n");
return 0;
case FP_VERIFY_MATCH:
printf("MATCH!\n");
return 0;
case FP_VERIFY_RETRY:
printf("Scan didn't quite work. Please try again.\n");
break;
case FP_VERIFY_RETRY_TOO_SHORT:
printf("Swipe was too short, please try again.\n");
break;
case FP_VERIFY_RETRY_CENTER_FINGER:
printf("Please center your finger on the sensor and try again.\n");
break;
case FP_VERIFY_RETRY_REMOVE_FINGER:
printf("Please remove finger from the sensor and try again.\n");
break;
}
} while (1);
}
int main(void)
{
int r;
@@ -128,7 +163,24 @@ int main(void)
if (!data)
goto out_close;
ret = 0;
printf("Normally we'd save that print to disk, and recall it at some "
"point later when we want to authenticate the user who just "
"enrolled. In the interests of demonstration, we'll authenticate "
"that user immediately.\n");
do {
char buffer[20];
verify(dev, data);
printf("Verify again? [Y/n]? ");
fgets(buffer, sizeof(buffer), stdin);
buffer[sizeof(buffer) - 1] = 0; /* null-terminate */
if (buffer[0] != '\n' && buffer[0] != 'y' && buffer[0] != 'Y')
break;
} while (1);
fp_print_data_free(data);
out_close:
fp_dev_close(dev);
return ret;