Subversion Repositories freemyipod

#include <stdio.h>

#include <libusb-1.0/libusb.h>

#include "misc.h"

const char *libusb_error_messages[13] = {
        "No error",                                     /* LIBUSB_SUCCESS = 0 */
        "Input/output error",           /* LIBUSB_ERROR_IO = -1 */
        "Invalid parameter",            /* LIBUSB_ERROR_INVALID_PARAM = -2 */
        "Access denied",                        /* LIBUSB_ERROR_ACCESS = -3 */
        "No such device",                       /* LIBUSB_ERROR_NO_DEVICE = -4 */
        "Entity not found",                     /* LIBUSB_ERROR_NOT_FOUND = -5 */
        "Resource busy",                        /* LIBUSB_ERROR_BUSY = -6 */
        "Operation timed out",          /* LIBUSB_ERROR_TIMEOUT = -7 */
        "Overflow",                                     /* LIBUSB_ERROR_OVERFLOW = -8 */
        "Pipe error",                           /* LIBUSB_ERROR_PIPE = -9 */
        "System call interrupted",      /* LIBUSB_ERROR_INTERRUPTED = -10 */
        "Insufficient memory",          /* LIBUSB_ERROR_NO_MEM = -11 */
        "Operation not supported",      /* LIBUSB_ERROR_NOT_SUPPORTED = -12 */
};

long int fgetsize(FILE *fp) {
        static long int pos, size;
        
        if (-1L == (pos = ftell(fp))) {
                perror("ftell");
                
                return -1L;
        }
        
        if(fseek(fp, 0L, SEEK_END)) {
                perror("fseek");
                
                return -1L;
        }
        
        if (-1L == (size = ftell(fp))) {
                perror("ftell");
                
                return -1L;
        }
        
        if (fseek(fp, pos, SEEK_SET)) {
                perror("fseek");
                
                return -1L;
        }
        
        return size;
}

void dump_packet(const unsigned char *data, const unsigned int length) {
        static unsigned int i;
        
        for (i = 0; i < length; ++i) {
                printf("%02x ", data[i]);
                
                if (i % 4 == 3) {
                        printf(" ");
                }
                
                if (i % 16 == 15 && i + 1 < length) {
                        printf("\n");
                }
        }

        printf("\n");
}

void print_error(const int code) {
        if (code > 0) { 
                fprintf(stderr, "error: code %d\n", code);
        }
        else {
                fprintf(stderr, "libusb error: %s (code %d)\n", (
                        LIBUSB_ERROR_OTHER == code || code > 0 ?
                                "unspecified" :
                                libusb_error_messages[-code]
                ), code);
        }
}