文件读取问题

Question

I have this binary file with showing the correct value when I opened the file using HexView.

4c 60 02 aa b4 c2 d1 e3 1a 01 00 00 8c 01 00 00 f5 01 00 00 52 02 00 00 bd 02 00 00 20 03 00 00 32 03 00 00 59 03 00 00

When I uses fread to read the 40 bytes data into a char buffer, it failed. From 9th byte data onwards, all the read back data is 0x00.

int main()
{
    FILE *stream;
    char flag[40]={0};
    size_t numread = 0;
    UINT theme = 0;

    if ((stream = fopen("alignment.bin", "r")) != NULL)
    {
        numread = fread(&flag, 1, 40, stream);

        fclose(stream);
    }
    else
    {
        cout << "File open failed" << endl;
    }
    system ("pause");
    return 0;
}

Answer 1

Try using "rb" instead of "r" . There might be some weird text formatting issues.

Specifying the b makes it read in pure binary with no formatting.

Answer 2

0x1A == 26 == ctrl-Z == EOF.

If you read in text mode, the stream consider the flow finished after that point (what follow is "rubbish for other transmissions").