cdategccendianness

Reading a 4 bytes date (big endian) from binary file

I have a date encoded (big endian) in 4 bytes that I'm trying to read from a binary file.

I do:

char date[4];
long seconds;
s = read(fd, date, sizeof(char) * 4);
seconds = (date[3]<<0) | (date[2]<<8) | (date[1]<<16) | (date[0]<<32);

printf("%s\n", ctime(&seconds));

But I get:

Thu Jan  1 00:59:27 1970

What's wrong with my code ? Thanks.

Solution 
  • (date[0]<<32);

    looks wrong. 16 + 8 is 24 not 32.