utils.cpp

//
// Created by Administrator on 2019/9/27 0027.
//

#include "utils.h"

unsigned long long ntohll(unsigned long long val) {
    if (__BYTE_ORDER == __LITTLE_ENDIAN) {
        return (((unsigned long long) htonl((int) ((val << 32) >> 32))) << 32) |
               (unsigned int) htonl((int) (val >> 32));
    } else if (__BYTE_ORDER == __BIG_ENDIAN) {
        return val;
    }
}

unsigned long long htonll(unsigned long long val) {
    if (__BYTE_ORDER == __LITTLE_ENDIAN) {
        return (((unsigned long long) htonl((int) ((val << 32) >> 32))) << 32) |
               (unsigned int) htonl((int) (val >> 32));
    } else if (__BYTE_ORDER == __BIG_ENDIAN) {
        return val;
    }
}

void gen_random(char *s, const int len) {
    static const char alphanum[] =
            "0123456789"
            "ABCDEFGHIJKLMNOPQRSTUVWXYZ"
            "abcdefghijklmnopqrstuvwxyz";

    for (int i = 0; i < len; ++i) {
        s[i] = alphanum[rand() % (sizeof(alphanum) - 1)];
    }
    s[len] = 0;
}