求助各位大哥

seansean

刚开始学习solaris8,想用c++实现例如ping的程序.请问c++网络方面的类库.
include一些什么头文件?
谢谢各位大哥

liupch

这里有一个ping得源代码
http://www.fanqiang.com/a4/b7/20010512/10571819.html

不过我记得这个程序在进行报文头部校验的时候算法是不正缺的。下面才是正确的算法

[code]
u_short ChkSum(u_short *addr, int len)
{
        register int nleft = len;
        register u_short *w = addr;
        register u_short answer;
        register int sum = 0;

        /*
         *  Our algorithm is simple, using a 32 bit accumulator (sum),
         *  we add sequential 16 bit words to it, and at the end, fold
         *  back all the carry bits from the top 16 bits into the lower
         *  16 bits.
         */
        while( nleft >; 1 )  {
                sum += *w++;
                nleft -= 2;
        }

        /* mop up an odd byte, if necessary */
       
        if( nleft == 1 ) {
                u_short        u = 0;

                *(u_char *)(&u) = *(u_char *)w ;
                sum += u;
        }

        /*
         * add back carry outs from top 16 bits to low 16 bits
         */
        sum = (sum >;>; 16) + (sum & 0xffff);        /* add hi 16 to low 16 */
        sum += (sum >;>; 16);                        /* add carry */
        answer = ~sum;                                /* truncate to 16 bits */
        return (answer);
}