How to copy a struct into a byte buffer.

write_struct.c

// how to write a struct to a buffer.

typedef struct {
   int version;
   int count;
   char id[8];
} FileInfo;

FileInfo info;


// start out with some space
char buffer[1024];
size_t size = 0;
memcpy(buffer + size, &info.version, sizeof(int));
size += sizeof(int);

memcpy(buffer + size, &info.count, sizeof(int));
size += sizeof(int);

memcpy(buffer + size, info.id, sizeof(char) * 8);
size += sizeof(char) * 8;