SLVService/plugins/network.cpp

#include <stdio.h>
#include <stdlib.h>
#include <unistd.h>
#include <arpa/inet.h>
#include <sys/types.h>
#include <sys/socket.h>
#include "network.h"

// <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
NetWork* open_network(char c_or_s,int type,char* ip,uint16_t port)
{
    // <20>ڶ<EFBFBD><DAB6>ϴ<EFBFBD><CFB4><EFBFBD>NetWork<72>ṹ
    NetWork* nw = malloc(sizeof(NetWork));
    if(NULL == nw)
    {
        perror("network malloc");
        return NULL;
    }

    // <20><><EFBFBD><EFBFBD>socket<65><74><EFBFBD><EFBFBD>
    nw->fd = socket(AF_INET,type,0);
    if(0 > nw->fd)
    {
        perror("network socket");
        free(nw);
        return NULL;
    }

    // ׼<><D7BC>ͨ<EFBFBD>ŵ<EFBFBD>ַ
    nw->addr.sin_family = AF_INET;
    nw->addr.sin_port = htons(port);
    nw->addr.sin_addr.s_addr = inet_addr(ip);
    nw->len = sizeof(nw->addr);
    nw->type = type;

    if('s' == c_or_s)
    {
        if(bind(nw->fd,(SP)&nw->addr,nw->len))
        {
            perror("network bind");
            free(nw);
            return NULL;
        }

        if(SOCK_STREAM == type && listen(nw->fd,50))
        {
            perror("network listen");
            free(nw);
            return NULL;
        }
    }
    else if(SOCK_STREAM == type)
    {
        if(connect(nw->fd,(SP)&nw->addr,nw->len))
        {
            perror("network connect");
            free(nw);
            return NULL;
        }    
    }

    return nw;
}

// TCP<43><50>serverר<72><D7A8>
NetWork* accept_network(NetWork* nw)
{
    if(SOCK_STREAM != nw->type)
    {
        printf("network accept socket type error!\n");
        return NULL;
    }

    NetWork* clinw = malloc(sizeof(NetWork));
    if(NULL == clinw)
    {
        perror("network accept malloc");
        return NULL;
    }
    
    clinw->type = nw->type;
    clinw->len = sizeof(clinw->addr);
    clinw->fd = accept(nw->fd,(SP)&clinw->addr,&clinw->len);
    if(0 > clinw->fd)
    {
        perror("network accept");
        free(clinw);
        return NULL;
    }

    return clinw;
}

// <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
int nsend(NetWork* nw,void* buf,uint32_t len)
{
    if(SOCK_STREAM == nw->type)
    {
        return send(nw->fd,buf,len,0);
    }
    else if(SOCK_DGRAM == nw->type)
    {
        return sendto(nw->fd,buf,len,0,(SP)&nw->addr,nw->len);
    }
    return -1;
}

// <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
int nrecv(NetWork* nw,void* buf,uint32_t len)
{
    if(SOCK_STREAM == nw->type)
    {
        return recv(nw->fd,buf,len,0);
    }
    else if(SOCK_DGRAM == nw->type)
    {
        return recvfrom(nw->fd,buf,len,0,(SP)&nw->addr,&nw->len);
    }
    return -1;
}

// <20>ر<EFBFBD><D8B1><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
void close_network(NetWork* nw)
{
    if(close(nw->fd))
    {
        perror("network close");
    }
    free(nw);
}