Tool_Box/readdb.c at master · BitCrane/Tool_Box · GitHub

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/* readdb.c */

/*
   Copyright (c) 2013, 2014 HashFast Technologies LLC
*/


#include <stdio.h>
#include <stdlib.h>
#include <ctype.h>
#include <libusb-1.0/libusb.h>

#include "hf_protocol.h"


#define TIMEOUT 1000


static void dumpBytes(unsigned char *ptr, int count) {
    char *charPtr;
    int oldCount;
    int ch;
    int i;

    while (count) {
        charPtr = (char *) ptr;
        oldCount = count;

        for (i = 0; count && i < 16; i++) {
            printf("%02x ", (int) *ptr++);
            count--;
        }
        for (; i < 16; i++)
            fputs("   ", stdout);

        fputs(" ", stdout);
        for (i = 0; oldCount && i < 16; i++, oldCount--) {
            ch = *charPtr++;
            printf("%c",
                   (isascii(ch) && isprint(ch) &&
                    (ch == ' ' || !isspace(ch))) ?  ch : '.');
        }

        fputs("\n", stdout);
    }
}

int main(int argc, char *argv[]) {
    int result;
    int usbInitialized;
    libusb_device **devices;
    struct libusb_device_descriptor desc;
    libusb_device_handle *dev;
    int count;
    unsigned char usbBuffer[64];
    int i, j;

    result = 0;
    usbInitialized = 0;
    dev = NULL;

    if (result == 0 && libusb_init(NULL)) {
        fprintf(stderr, "failed to initialize libusb\n");
        result = 1;
    }

    if (result == 0) {
        usbInitialized = 1;
        libusb_set_debug(NULL, 0);
        count = libusb_get_device_list(NULL, &devices);
        if (count < 0) {
            fprintf(stderr, "failed to get device list\n");
            result = 1;
        }
    }
    if (result == 0) {
        for (i = 0, j = -1; i < count && result == 0; i++) {
            if (libusb_get_device_descriptor(devices[i], &desc) ==
                LIBUSB_SUCCESS) {
                if ((desc.idVendor == HF_USB_VENDOR_ID &&
                     desc.idProduct == HF_USB_PRODUCT_ID_G1)) {
                    if (j >= 0) {
                        fprintf(stderr, "more than one device found; aborting");
                        result = 1;
                    } else
                        j = i;
                }
            }
        }
        if (j < 0) {
            fprintf(stderr, "failed to find device\n");
            result = 1;
        }
        if (result == 0) {
            if (libusb_open(devices[j], &dev)) {
                fprintf(stderr, "failed to open device\n");
                result = 1;
            }
        }
        libusb_free_device_list(devices, 1);
    }


    if (result == 0) {
        count = libusb_control_transfer(dev,
                                        LIBUSB_ENDPOINT_IN |
                                        LIBUSB_REQUEST_TYPE_VENDOR |
                                        LIBUSB_RECIPIENT_INTERFACE,
                                        0xd0, /* request */
                                        0x0000, /* value */
                                        0x0000, /* index */
                                        usbBuffer,
                                        64,
                                        TIMEOUT);
        if (count > 0)
            dumpBytes(usbBuffer, count);
        else {
            fprintf(stderr, "error reading debug buffer %d\n", count);
            result = 1;
        }
    }

    if (usbInitialized) {
        if (dev)
            libusb_close(dev);
        libusb_exit(NULL);
    }

    return result;
}