lol sorry man, i have been epicly procrastinating.... i got no other
excuse about the belated reply..
I have attached what im pretty was
the code i was using at the time...
Once again, apologies for taking
so long to get back.
- VeN
On 11.12.2012 00:37, Vasily Khoruzhick
wrote:
> Any chance to get code that reproduces this issue? :)
>
>
Regards
> Vasily
>
> On Mon, Dec 10, 2012 at 1:10 PM, VeNoMouS
<[email protected]> wrote:
>
>> Program received signal SIGSEGV,
Segmentation fault. 0xb512e57c in bozorth_gallery_init (gstruct=0x31) at
nbis/bozorth3/bz_drvrs.c:135 135 bz_comp( (gdb) bt #0 0xb512e57c in
bozorth_gallery_init (gstruct=0x31) at nbis/bozorth3/bz_drvrs.c:135 #1
0xb512e5f2 in bozorth_to_gallery (probe_len=34, pstruct=0x8056a90,
gstruct=0x31) at nbis/bozorth3/bz_drvrs.c:173 #2 0xb51172d8 in
fpi_img_compare_print_data_to_gallery (print=0x8056a80,
gallery=0x8054480, match_threshold=40, match_offset=0xbfffecd8) at
img.c:377 #3 0xb5118832 in identify_process_img (imgdev=0x804c288,
img=0x8061dc0) at imgdev.c:199 #4 fpi_imgdev_image_captured
(imgdev=0x804c288, img=0x8061dc0) at imgdev.c:254 #5 0xb51260ab in
capture_set_idle_reqs_cb (transfer=0x80540b4) at drivers/aes2550.c:259
#6 0xb47977e1 in ?? () from /lib/libusb-1.0.so.0 #7 0xb4799147 in ?? ()
from /lib/libusb-1.0.so.0 #8 0xb4796e65 in ?? () from
/lib/libusb-1.0.so.0 #9 0xb4797641 in libusb_handle_events_timeout ()
from /lib/libusb-1.0.so.0 #10 0xb5118dbf in fp_handle_events_timeout
(timeout=0xbfffef48) at poll.c:231 #11 0xb5118e6b in fp_handle_events ()
at poll.c:251 #12 0xb5119103 in fp_identify_finger_img (dev=0x804c220,
print_gallery=0x8054480, match_offset=0xbfffefe8, img=0x0) at sync.c:468
#13 0x08048cfb in fp_identify_finger (dev=0x804c220,
print_gallery=0x8054480, match_offset=0xbfffefe8) at
/usr/include/libfprint/fprint.h:240 #14 0x08048d7e in verify2
(dev=0x804c220, gallery=0x8054480) at verify.c:37 #15 0x080493eb in main
() at verify.c:225 (gdb) On 10.12.2012 23:09, Vasily Khoruzhick wrote:
On Mon, Dec 10, 2012 at 12:48 PM, VeNoMouS <[email protected] [1]>
wrote: Hi guys, Just wondering ... is it possible to use more than 11
prints in a gallery, because when I past 11 prints
bozorth_gallery_init() causes a segfault... just wondering if anyone
come across this before... the reason I'm trying to go more than 10
fingers, is to have a couple prints of each finger.... Cheers Could you
check where exactly it crashes? Thanks! Regards Vasily
Links:
------
[1] mailto:[email protected]
#include <stdio.h>
#include <stdlib.h>
#include <unistd.h>
#include <string.h>
#include <dirent.h>
#include <glib.h>
#include <glib/gstdio.h>
#include <libfprint/fprint.h>
struct fp_dscv_dev *discover_device(struct fp_dscv_dev **discovered_devs)
{
struct fp_dscv_dev *ddev = discovered_devs[0];
struct fp_driver *drv;
if (!ddev)
return NULL;
drv = fp_dscv_dev_get_driver(ddev);
printf("Found device claimed by %s driver\n",
fp_driver_get_full_name(drv));
return ddev;
}
int verify2(struct fp_dev *dev, struct fp_print_data **gallery)
{
int r;
size_t match_offset;
do {
sleep(1);
printf("\n(2) Scan your finger now.\n");
r = fp_identify_finger(dev, gallery, &match_offset);
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;
}
//handle_output(r, match_offset);
} while (1);
}
int verify(struct fp_dev *dev, struct fp_print_data *data)
{
int r;
do {
struct fp_img *img = NULL;
sleep(1);
printf("\nScan your finger now.\n");
r = fp_verify_finger_img(dev, data, &img);
if (img) {
fp_img_save_to_file(img, "verify.pgm");
printf("Wrote scanned image to verify.pgm\n");
fp_img_free(img);
}
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 = 1;
struct fp_dscv_dev *ddev;
struct fp_dscv_dev **discovered_devs;
struct fp_dev *dev;
struct fp_print_data *data;
struct fp_dscv_print *print;
r = fp_init();
if (r < 0) {
fprintf(stderr, "Failed to initialize libfprint\n");
exit(1);
}
fp_set_debug(3);
discovered_devs = fp_discover_devs();
if (!discovered_devs) {
fprintf(stderr, "Could not discover devices\n");
goto out;
}
ddev = discover_device(discovered_devs);
if (!ddev) {
fprintf(stderr, "No devices detected.\n");
goto out;
}
dev = fp_dev_open(ddev);
fp_dscv_devs_free(discovered_devs);
if (!dev) {
fprintf(stderr, "Could not open device.\n");
goto out;
}
printf("[+] Does Dev Support Identification -
%d\n",fp_dev_supports_identification(dev));
printf("Opened device. Loading previously enrolled right index finger
data...\n");
// JJ
gsize length;
gchar *contents;
GError *err = NULL;
struct fp_print_data *fdata;
struct fp_print_data **gallery;
int count=0;
DIR *d;
struct dirent *dir;
d = opendir("/code/fprint/fingers/");
if (d)
{
while ((dir = readdir(d)) != NULL)
{
if(!strcmp(dir->d_name,".") ||
!strcmp(dir->d_name,"..")) continue;
count++;
}
closedir(d);
}
gallery = malloc(sizeof(*gallery) * (count+1));
int z=0;
d = opendir("/code/fprint/fingers/");
if (d)
{
while ((dir = readdir(d)) != NULL)
{
if(!strcmp(dir->d_name,".") ||
!strcmp(dir->d_name,"..")) continue;
count++;
printf("Loading Print %s\n",dir->d_name);
char files[1024];
snprintf(files,sizeof(files),"/code/fprint/fingers/%s",dir->d_name);
g_file_get_contents(files, &contents, &length, &err);
if(err) { printf("Error: %s\n",err->message); }
gallery[z]=fp_print_data_from_data(contents, length);
printf("Read %d of data\n",length);
g_free(contents);
printf("%s\n", dir->d_name);
z++;
}
closedir(d);
}
//r = fp_print_data_load(dev, RIGHT_INDEX, &data);
/*
gallery = malloc(sizeof(*gallery) * 3);
gallery[0]=fp_print_data_from_data(contents, length);
printf("Read %d of data\n",length);
g_free(contents);
g_file_get_contents("/code/fprint/fingers/jj", &contents, &length,
&err);
if(err) { printf("Error: %s\n",err->message); }
gallery[1]=fp_print_data_from_data(contents, length);
printf("Read %d of data\n",length);
g_free(contents);
*/
gallery[count+1]=NULL;
//gallery[1]=NULL;
if (r != 0) {
printf("[*] Failed to load fingerprint, error %d\n", r);
printf("[*] Did you remember to enroll your right index finger
first?\n");
goto out_close;
}
printf("Print loaded. Time to verify!\n");
do {
char buffer[20];
verify2(dev, gallery);
printf("Verify again? [Y/n]? ");
//fgets(buffer, sizeof(buffer), stdin);
//if (buffer[0] != '\n' && buffer[0] != 'y' && buffer[0] != 'Y')
// break;
} while (1);
fp_print_data_free(data);
out_close:
fp_dev_close(dev);
out:
fp_exit();
return r;
}
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