pset4 recover not working due to segmentation fault

Question

I have come up with this code for recover but there is a segmentation fault I can't figure out where. any pointers welcome.

BYTE buffer[512];
    int i = 0;
    FILE *jpeg = NULL;
    while (fread(buffer, sizeof(BYTE), 512, card) == 512)
    {
        if (buffer[0] == 0xff && buffer[1] == 0xd8 && buffer[2] == 0xff && (buffer[3] &0xf0) == 0xe0)
        {
            if (i == 0)
            {
                char name[8];
                sprintf(name,"%03i.jpg", i);
                i++;

                jpeg = fopen(name, "w");

                if (jpeg == NULL)
                {
                    printf("Could not open file.\n");
                    return 1;
                }

                fwrite(buffer, sizeof(BYTE), 512, jpeg);

            }
            else
            {
                fclose(jpeg);
                char name[8];
                sprintf(name,"%03i.jpg", i);
                i++;
                jpeg = fopen(name,"w");
                if (jpeg == NULL)
                {
                    printf("Could not open file.\n");
                    return 1;
                }
                fwrite(buffer, sizeof(BYTE), 512, jpeg);

            }

        }
        else
        {
            fwrite(buffer, sizeof(BYTE), 512, jpeg);
            fclose(jpeg);
        }

    }

    fclose(card);

Answer 1

try running the program with valgrind. It will tell you which line is throwing the seg fault.

BTW, you did open the input file "card", right?