C HTTP 服务器/连接重置

发布于 2024-11-08 06:05:56 字数 1154 浏览 0 评论 0原文

我正在尝试用 c 语言创建一个小型 http 服务器，但我在使用 httperf 时遇到 CONNRESET 错误，为什么？

#include <stdlib.h>
#include <stdio.h>
#include <string.h>
#include <signal.h>

#include <unistd.h>
#include <errno.h>
#include <sys/types.h> 
#include <sys/socket.h>
#include <netinet/in.h>
#include <netdb.h>
#include <fcntl.h>

#define SOCKERROR -1

#define SD_RECEIVE 0
#define SD_SEND 1
#define SD_BOTH 2

int server;
int client;

...

int main(int argc, char *argv[])
{
    int status;

    int accepted;

    struct addrinfo hint;
    struct addrinfo *info;

    struct sockaddr addr;
    socklen_t addrsize;

    int yes = 1;

    ...

    // client

    addrsize = sizeof addr;

    while (1)
    {
        memset(&accepted, 0, sizeof accepted);
        memset(&addr, 0, sizeof addr);

        accepted = accept(server, &addr, &addrsize);

        if (accepted == SOCKERROR) {
            warn("Accept", errno);
        } else {
            shutdown(accepted, SD_SEND);
            close(accepted);
        }
    }

    // shutdown

    ...

    return EXIT_SUCCESS;
}

原文

I'm trying to make a tiny http server in c but I got CONNRESET errors with httperf, why ?

#include <stdlib.h>
#include <stdio.h>
#include <string.h>
#include <signal.h>

#include <unistd.h>
#include <errno.h>
#include <sys/types.h> 
#include <sys/socket.h>
#include <netinet/in.h>
#include <netdb.h>
#include <fcntl.h>

#define SOCKERROR -1

#define SD_RECEIVE 0
#define SD_SEND 1
#define SD_BOTH 2

int server;
int client;

...

int main(int argc, char *argv[])
{
    int status;

    int accepted;

    struct addrinfo hint;
    struct addrinfo *info;

    struct sockaddr addr;
    socklen_t addrsize;

    int yes = 1;

    ...

    // client

    addrsize = sizeof addr;

    while (1)
    {
        memset(&accepted, 0, sizeof accepted);
        memset(&addr, 0, sizeof addr);

        accepted = accept(server, &addr, &addrsize);

        if (accepted == SOCKERROR) {
            warn("Accept", errno);
        } else {
            shutdown(accepted, SD_SEND);
            close(accepted);
        }
    }

    // shutdown

    ...

    return EXIT_SUCCESS;
}

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指尖微凉心微凉 2024-11-15 06:06:16

好的，感谢您的帮助，我刚刚在关闭客户端套接字之前添加了此内容，并且不再出现 CONNRESET 错误：

char readBuffer[128];
char *sendBuffer = "HTTP/1.0 200 OK\r\n"
    "Content-Type: text/html\r\n"
    "Content-Length: 30\r\n\r\n"
    "<html><body>test</body></html>";

do {
    status = recv(accepted, readBuffer, sizeof readBuffer, MSG_DONTWAIT);
} while (status > 0);

send(accepted, sendBuffer, (int) strlen(sendBuffer), 0);

OK, thanks for your help, I've just added this before closing client socket, and no more CONNRESET error :

char readBuffer[128];
char *sendBuffer = "HTTP/1.0 200 OK\r\n"
    "Content-Type: text/html\r\n"
    "Content-Length: 30\r\n\r\n"
    "<html><body>test</body></html>";

do {
    status = recv(accepted, readBuffer, sizeof readBuffer, MSG_DONTWAIT);
} while (status > 0);

send(accepted, sendBuffer, (int) strlen(sendBuffer), 0);

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