http服务器实现

Host:192.168.100.218:5000

欢迎访问！！！

#include 
#include 
#include 

#pragma comment (lib, "ws2_32.lib")

using namespace std;

unsigned int i = 0;
const unsigned int MAXCNT = 32;
const unsigned int BUFLEN = 65536;

char bufhead[BUFLEN];
char bufbody[BUFLEN];
char sendbuf[BUFLEN];

char recvbuf[BUFLEN];

void init() {
    char ch;
    FILE* fp;
    unsigned int it;
    it = 0;
    fp = fopen("head.txt", "r");
    ch = fgetc(fp);
    while (ch != EOF) {
        if (ch != '\n')
            bufhead[it++] = ch;
        else {
            bufhead[it++] = '\r';
            bufhead[it++] = '\n';
        }
        ch = fgetc(fp);
    }
    bufhead[it++] = '\0';
    fclose(fp);
    it = 0;
    fp = fopen("body.txt", "r");
    ch = fgetc(fp);
    while (ch != EOF) {
        if (ch != '\n')
            bufbody[it++] = ch;
        else {
            bufbody[it++] = '\r';
            bufbody[it++] = '\n';
        }
        ch = fgetc(fp);
    }
    bufbody[it++] = '\0';
    fclose(fp);
    sprintf(sendbuf, bufhead, strlen(bufbody), bufbody);
    printf("%s\n", sendbuf);
    return;
}

void threadpro(LPVOID lpsock) {
    SOCKET sock = (SOCKET)lpsock;
    recv(sock, recvbuf, sizeof(recvbuf), 0);
    printf("recv:\n%s\n", recvbuf);
    send(sock, sendbuf, strlen(sendbuf) + 1, 0);
    printf("send:\n%s\n", sendbuf);
    closesocket(sock);
    return;
}

int main() {
    init();
    SOCKET rcv;
    SOCKET sock[MAXCNT];
    WSADATA wsd;
    sockaddr_in ser;
    sockaddr_in cli;
    WSAStartup(MAKEWORD(2, 2), &wsd);
    int csize = sizeof(sockaddr);
    ser.sin_family = AF_INET;
    ser.sin_addr.S_un.S_addr = htonl(INADDR_ANY);
    ser.sin_port = htons(5000);
    rcv = socket(AF_INET, SOCK_STREAM, 0);
    bind(rcv, (sockaddr*)&ser, sizeof(sockaddr));
    while (true) {
        listen(rcv, 0);
        sock[i++] = accept(rcv, (sockaddr*)&cli, &csize);
        if (i < MAXCNT) {
            DWORD id;
            HANDLE hand = (HANDLE)::CreateThread(NULL, 0, (LPTHREAD_START_ROUTINE)threadpro, (LPVOID)sock[--i], 0, &id);
        }
        else {
            i--;
        }
    }
}