Use multithreading instead

Makefile

@@ -1,11 +1,11 @@
 CROSS_COMPILE ?= 
 CC := $(CROSS_COMPILE)gcc
 STRIP := $(CROSS_COMPILE)strip
-CFLAGS += -g -O2 -Wall
+CFLAGS += -g -O2 -Wall -pthread
-LIBS = -pthread -static
+LIBS = -static
 OBJ := CProxy
 
-all: proxy.o http.o request.o picohttpparser.o conf.o timeout.o kill.o help.o
+all: proxy.o http.o httpdns.o request.o picohttpparser.o conf.o timeout.o kill.o help.o
 	$(CC) $(CFLAGS) -o $(OBJ) $^ $(LIBS)
 .c.o:
 	$(CC) $(CFLAGS) -c $< $(LIBS)

conf.h

@@ -50,4 +50,6 @@ char *strncpy_(char *dest, const char *src, size_t n);
 void read_conf(char *file, conf * p);
 void free_conf(conf * p);
 
+void printfconf(conf * configure);
+
 #endif

http.c

@@ -4,7 +4,7 @@
 int sslEncodeCode;
 
 /* 对数据进行编码 */
-static void dataEncode(char *data, int data_len)
+void dataEncode(char *data, int data_len)
 {
     if (sslEncodeCode)
         while (data_len-- > 0)

http.h

@@ -10,6 +10,7 @@
 int remote_port;
 char remote_host[128];
 
+
 extern int sslEncodeCode;
 
 typedef struct conn_t {
@@ -25,5 +26,6 @@ extern void clienttoserver(conn * in);
 extern void close_connection(conn * conn);
 
 extern char *request_head(conn * in, conf * configure);
+void dataEncode(char *data, int data_len);
 
 #endif

httpdns.c

@@ -0,0 +1,450 @@
+#include "httpdns.h"
+
+int encodeCode=0;
+/* hosts变量 */
+char *hosts_path = NULL;
+FILE *hostsfp = NULL;
+struct dns_hosts *hosts, *last_hosts = NULL;
+
+/* encode domain and ipAddress */
+static void dataEncode(unsigned char *data, int data_len)
+{
+    while (data_len-- > 0)
+        data[data_len] ^= encodeCode;
+}
+
+int read_hosts_file(char *path)
+{
+    char *ip_begin, *ip_end, *host_begin, *host_end, *buff, *next_line;
+    int file_size, i;
+
+    hosts = last_hosts = NULL;
+    if ((hostsfp = fopen(path, "r")) == NULL) {
+        fputs("error hosts file path", stderr);
+        return 1;
+    }
+    //读取文件内容
+    fseek(hostsfp, 0, SEEK_END);
+    file_size = ftell(hostsfp);
+    //文件没有内容则不用读取
+    if (file_size == 0)
+        return 0;
+    if ((buff = (char *)alloca(file_size + 1)) == NULL) {
+        fclose(hostsfp);
+        fputs("out of memory", stderr);
+        return 1;
+    }
+    rewind(hostsfp);
+    fread(buff, file_size, 1, hostsfp);
+    *(buff + file_size) = '\0';
+    fclose(hostsfp);
+
+    struct dns_hosts *h = NULL;
+    for (ip_begin = buff; ip_begin; ip_begin = next_line) {
+        next_line = strchr(ip_begin, '\n');
+        if (next_line != NULL)
+            *next_line++ = '\0';
+        while (*ip_begin == '\t' || *ip_begin == ' ' || *ip_begin == '\r')
+            if (*ip_begin++ == '\0')
+                continue;
+        for (i = 0, ip_end = ip_begin; *ip_end != ' ' && *ip_end != '\t' && *ip_end != '\r' && *ip_end != '\0'; ip_end++) {
+            if (*ip_end == '.')
+                i++;
+            else if (*ip_end == '\0')
+                continue;
+        }
+        if (i != 3)
+            continue;
+        for (host_begin = ip_end; *host_begin == '\t' || *host_begin == ' ' || *host_begin == '\r';) {
+            if (*host_begin++ == '\0')
+                continue;
+        }
+        for (host_end = host_begin; *host_end != ' ' && *host_end != '\t' && *host_end != '\r' && *host_end != '\n' && *host_end != '\0'; host_end++) ;
+        if (h) {
+            h->next = (struct dns_hosts *)malloc(sizeof(struct dns_hosts));
+            if (h->next == NULL)
+                return 1;
+            h = h->next;
+        } else {
+            hosts = h = (struct dns_hosts *)malloc(sizeof(struct dns_hosts));
+            if (hosts == NULL) {
+                fputs("out of memory", stderr);
+                return 1;
+            }
+        }
+        h->next = NULL;
+        h->ip = strndup(ip_begin, ip_end - ip_begin);
+        if (*(host_end - 1) == '.')
+            host_end--;
+        h->host = strndup(host_begin, host_end - host_begin);
+        if (h->ip == NULL || h->host == NULL) {
+            fputs("out of memory", stderr);
+            return 1;
+        }
+
+    }
+
+    last_hosts = h;
+    return 0;
+}
+
+char *hosts_lookup(char *host)
+{
+    struct dns_hosts *h;
+
+    h = hosts;
+    while (h) {
+        if (strcmp(h->host, host) == 0)
+            return h->ip;
+        h = h->next;
+    }
+
+    return NULL;
+}
+
+void close_client(dns_t * dns)
+{
+    close(dns->fd);
+    if (dns->http_rsp_len != sizeof(ERROR_MSG) - 1) //ERROR_MSG not free()
+        free(dns->http_rsp);
+    dns->http_rsp = NULL;
+    dns->sent_len = dns->dns_req_len = 0;
+    dns->fd = -1;
+}
+
+void build_http_rsp(dns_t * dns, char *ips)
+{
+    int ips_len = strlen(ips);
+
+    if (encodeCode)
+        dataEncode((unsigned char *)ips, ips_len);
+    dns->http_rsp_len = sizeof(SUCCESS_HEADER) - 1 + ips_len;
+    dns->http_rsp = (char *)malloc(dns->http_rsp_len + 1);
+    if (dns->http_rsp == NULL)
+        return;
+    strcpy(dns->http_rsp, SUCCESS_HEADER);
+    memcpy(dns->http_rsp + sizeof(SUCCESS_HEADER) - 1, ips, ips_len);
+    dns->sent_len = 0;
+}
+
+void response_client(dns_t * out)
+{
+    int write_len = write(out->fd, out->http_rsp + out->sent_len, out->http_rsp_len - out->sent_len);
+    if (write_len == out->http_rsp_len - out->sent_len || write_len == -1)
+        close_client(out);
+    else
+        out->sent_len += write_len;
+}
+
+void build_dns_req(dns_t * dns, char *domain, int domain_size)
+{
+    char *p, *_p;
+
+    p = dns->dns_req + 12;
+    memcpy(p + 1, domain, domain_size + 1); //copy '\0'
+    while ((_p = strchr(p + 1, '.')) != NULL) {
+        *p = _p - p - 1;
+        p = _p;
+    }
+    *p = strlen(p + 1);
+    p = dns->dns_req + 14 + domain_size;
+    *p++ = 0;
+    *p++ = 1;
+    *p++ = 0;
+    *p++ = 1;
+    dns->dns_req_len = p - dns->dns_req;
+}
+
+int send_dns_req(char *dns_req, int req_len)
+{
+    int write_len;
+
+    write_len = write(dstFd, dns_req, req_len);
+    if (write_len == req_len)
+        return 0;
+    return write_len;
+}
+
+void query_dns()
+{
+    dns_t *dns;
+    int i, ret;
+
+    for (i = MAX_FD - 2, dns = &dns_list[MAX_FD - 3]; i--; dns--) {
+        if (dns->http_rsp == NULL && dns->dns_req_len != dns->sent_len) {
+            ret = send_dns_req(dns->dns_req + dns->sent_len, dns->dns_req_len - dns->sent_len);
+            if (ret == 0) {
+                dns->sent_len = dns->dns_req_len;
+            } else if (ret > -1) {
+                dns->sent_len += ret;
+                return;
+            } else {
+                close_client(dns);
+                break;
+            }
+        }
+    }
+    ev.events = EPOLLIN | EPOLLET;
+    ev.data.fd = dstFd;
+    epoll_ctl(eFd, EPOLL_CTL_MOD, dstFd, &ev);
+}
+
+void recv_dns_rsp()
+{
+    static char rsp_data[BUFF_SIZE + 1], *p, *ips, *ips_save;
+    unsigned char *_p;
+    dns_t *dns;
+    int len, ips_len;
+    int16_t flag;
+
+    len = read(dstFd, rsp_data, BUFF_SIZE);
+    if (len < 2)
+        return;
+    memcpy(&flag, rsp_data, sizeof(int16_t));
+    if (flag > MAX_FD - 3)
+        return;
+    dns = dns_list + flag;
+    dns->sent_len = 0;
+    dns->http_rsp = ERROR_MSG;
+    dns->http_rsp_len = sizeof(ERROR_MSG) - 1;
+    if (dns->dns_req_len + 12 > len || (unsigned char)rsp_data[3] != 128 /*(signed char) max is 127 */ )
+        goto modEvToOut;
+    rsp_data[len] = '\0';
+    /* get ips */
+    p = rsp_data + dns->dns_req_len + 11;
+    ips_len = 0;
+    ips = NULL;
+    while (p - rsp_data + 4 <= len) {
+        //type
+        if (*(p - 8) != 1) {
+            p += *p + 12;
+            continue;
+        }
+        ips_save = ips;
+        ips = (char *)realloc(ips, ips_len + 16);
+        if (ips == NULL) {
+            ips = ips_save;
+            break;
+        }
+        _p = (unsigned char *)p + 1;
+        ips_len += sprintf(ips + ips_len, "%d.%d.%d.%d", _p[0], _p[1], _p[2], _p[3]);
+        p += 16;                //next address
+        ips[ips_len++] = ';';
+    }
+    if (ips) {
+        ips[ips_len - 1] = '\0';
+        //printf("ips %s\n", ips);
+        build_http_rsp(dns, ips);
+        free(ips);
+        if (dns->http_rsp) {
+            response_client(dns);
+            if (dns->http_rsp == NULL) {
+                dns->http_rsp = ERROR_MSG;
+                dns->http_rsp_len = sizeof(ERROR_MSG) - 1;
+            }
+        }
+    }
+modEvToOut:
+    ev.data.ptr = dns;
+    ev.events = EPOLLOUT | EPOLLET;
+    epoll_ctl(eFd, EPOLL_CTL_MOD, dns->fd, &ev);
+}
+
+void read_client(dns_t * in)
+{
+    static char httpReq[BUFF_SIZE + 1];
+    int domain_size, httpReq_len;
+    char *domain_begin, *domain_end, *domain = NULL, *ips;
+
+    httpReq_len = read(in->fd, httpReq, BUFF_SIZE);
+    //必须大于5，否则不处理
+    if (httpReq_len < 6) {
+        close_client(in);
+        return;
+    }
+    httpReq[httpReq_len] = '\0';
+    in->http_rsp = ERROR_MSG;
+    in->http_rsp_len = sizeof(ERROR_MSG) - 1;
+    if ((domain_begin = strstr(httpReq, "?dn=")))
+        domain_begin += 4;
+    else if ((domain_begin = strstr(httpReq, "?host=")))
+        domain_begin += 6;
+    else
+        goto response_client;
+
+    domain_end = strchr(domain_begin, ' ');
+    if (domain_end == NULL)
+        goto response_client;
+    if (*(domain_end - 1) == '.')
+        domain_size = domain_end - domain_begin - 1;
+    else
+        domain_size = domain_end - domain_begin;
+    domain = strndup(domain_begin, domain_size);
+    if (encodeCode)
+        dataEncode((unsigned char *)domain, domain_size);
+    if (domain == NULL || domain_size <= 0)
+        goto response_client;
+    if (hostsfp && (ips = hosts_lookup(domain)) != NULL) {
+        free(domain);
+        build_http_rsp(in, ips);
+        if (in->http_rsp == NULL) {
+            in->http_rsp = ERROR_MSG;
+            in->http_rsp_len = sizeof(ERROR_MSG) - 1;
+        }
+    } else {
+        build_dns_req(in, domain, domain_size);
+        free(domain);
+        int ret = send_dns_req(in->dns_req, in->dns_req_len);
+        switch (ret) {
+        case 0:
+            in->sent_len = in->dns_req_len;
+            ev.events = EPOLLIN;
+            break;
+
+        case -1:
+            close_client(in);
+            return;
+
+        default:
+            in->sent_len += ret;
+            ev.events = EPOLLIN | EPOLLOUT;
+            break;
+        }
+        ev.data.fd = dstFd;
+        epoll_ctl(eFd, EPOLL_CTL_MOD, dstFd, &ev);
+        return;
+    }
+
+response_client:
+    response_client(in);
+    if (in->http_rsp) {
+        ev.data.ptr = in;
+        ev.events = EPOLLOUT | EPOLLET;
+        epoll_ctl(eFd, EPOLL_CTL_MOD, in->fd, &ev);
+    }
+}
+
+void httpdns_accept_client()
+{
+    struct sockaddr_in addr;
+    dns_t *client;
+    int i;
+
+    for (i = MAX_FD - 2; i--;) {
+        if (dns_list[i].fd < 0) {
+            client = &dns_list[i];
+            break;
+        }
+    }
+    //printf("i = %d\n" , i);
+    if (i < 0)
+        return;
+    client->fd = accept(listenFd, (struct sockaddr *)&addr, &addr_len);
+    if (client->fd < 0) {
+        return;
+    }
+    fcntl(client->fd, F_SETFL, O_NONBLOCK);
+    ev.data.ptr = client;
+    ev.events = EPOLLIN | EPOLLET;
+    if (epoll_ctl(eFd, EPOLL_CTL_ADD, client->fd, &ev) != 0) {
+        close(client->fd);
+        client->fd = -1;
+        return;
+    }
+}
+
+int httpdns_initialize()
+{
+    struct sockaddr_in listenAddr, dnsAddr;
+    int optval = 0;
+
+    //ignore PIPE signal
+    signal(SIGPIPE, SIG_IGN);
+    dnsAddr.sin_family = listenAddr.sin_family = AF_INET;   // IPv4
+    dnsAddr.sin_addr.s_addr = inet_addr(DEFAULT_UPPER_IP);  // 本地监听
+    dnsAddr.sin_port = htons(53);
+
+    listenAddr.sin_addr.s_addr = INADDR_ANY;
+    listenAddr.sin_port = htons(53);
+    
+    listenFd = socket(AF_INET, SOCK_STREAM, 0);     // 本地监听,TCP协议
+    dstFd = socket(AF_INET, SOCK_DGRAM, 0);         // DNS监听,UDP协议
+    if (dstFd < 0 || listenFd < 0) {
+        perror("socket");
+        return 1;
+    }
+    fcntl(dstFd, F_SETFL, O_NONBLOCK);              // dstFd 非阻塞
+    fcntl(listenFd, F_SETFL, O_NONBLOCK);           // listenFd 非阻塞
+
+    optval = 1;
+    if (setsockopt(listenFd, SOL_SOCKET, SO_REUSEADDR, &optval, sizeof(optval)) != 0) {
+        perror("setsockopt");
+        return 1;
+    }
+    if (bind(listenFd, (struct sockaddr *)&listenAddr, sizeof(listenAddr)) != 0) {
+        perror("bind");
+        return 1;
+    }
+    if (listen(listenFd, 20) != 0) {
+        perror("listen");
+        return 1;
+    }
+    
+    eFd = epoll_create(MAX_FD - 1);
+    if (eFd < 0) {
+        perror("epoll_create");
+        return 1;
+    }
+    connect(dstFd, (struct sockaddr *)&dnsAddr, sizeof(dnsAddr));
+    ev.data.fd = listenFd;
+    ev.events = EPOLLIN;
+    epoll_ctl(eFd, EPOLL_CTL_ADD, listenFd, &ev);
+    ev.data.fd = dstFd;
+    ev.events = EPOLLIN;
+    epoll_ctl(eFd, EPOLL_CTL_ADD, dstFd, &ev);
+    memset(dns_list, 0, sizeof(dns_list));
+    //初始化DNS请求结构
+    int16_t i;
+    for (i = MAX_FD - 2; i--;) {
+        dns_list[i].fd = -1;
+        memcpy(dns_list[i].dns_req, &i, sizeof(i));
+        dns_list[i].dns_req[2] = 1;
+        dns_list[i].dns_req[3] = 0;
+        dns_list[i].dns_req[4] = 0;
+        dns_list[i].dns_req[5] = 1;
+        dns_list[i].dns_req[6] = 0;
+        dns_list[i].dns_req[7] = 0;
+        dns_list[i].dns_req[8] = 0;
+        dns_list[i].dns_req[9] = 0;
+        dns_list[i].dns_req[10] = 0;
+        dns_list[i].dns_req[11] = 0;
+    }
+
+    return 0;
+}
+
+void *httpdns_start_server(void *p)
+{
+    int n;
+
+    while (1) {
+        n = epoll_wait(eFd, evs, MAX_FD - 1, -1);
+        //printf("n = %d\n", n);
+        while (n-- > 0) {
+            if (evs[n].data.fd == listenFd) {
+                httpdns_accept_client();
+            } else if (evs[n].data.fd == dstFd) {
+                if (evs[n].events & EPOLLIN) {
+                    recv_dns_rsp();
+                } else if (evs[n].events & EPOLLOUT) {
+                    query_dns();
+                }
+            } else if (evs[n].events & EPOLLIN) {
+                read_client(evs[n].data.ptr);
+            } else if (evs[n].events & EPOLLOUT) {
+                response_client(evs[n].data.ptr);
+            }
+        }
+    }
+    return NULL;
+}

httpdns.h

@@ -0,0 +1,55 @@
+#ifndef _HTTPDNS_
+#define _HTTPDNS_
+
+#include <stdio.h>
+#include <sys/socket.h>
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <netinet/in.h>
+#include <string.h>
+#include <fcntl.h>
+#include <arpa/inet.h>
+#include <unistd.h>
+#include <sys/epoll.h>
+#include <stdlib.h>
+#include <netdb.h>
+#include <pthread.h>
+#include <signal.h>
+#include <errno.h>
+
+#define DEFAULT_UPPER_IP "114.114.114.114"
+#define MAX_FD 1024
+#define DNS_REQUEST_SIZE 512
+#define BUFF_SIZE 1024
+
+typedef struct dns_request {
+    char dns_req[DNS_REQUEST_SIZE + 1];
+    char *http_rsp;
+    unsigned int http_rsp_len, sent_len, dns_req_len;
+    int fd;
+} dns_t;
+
+struct dns_hosts {
+    char *host;
+    char *ip;
+    struct dns_hosts *next;
+};
+
+#define VERSION "0.3"
+#define ERROR_MSG "HTTP/1.0 404 Not Found\r\nConnection: close\r\nVia: Mmmdbybyd(HTTP-DNS Server "VERSION")\r\nContent-type: charset=utf-8\r\n\r\n<html><head><title>HTTP DNS Server</title></head><body>查询域名失败<br/><br/>By: 萌萌萌得不要不要哒<br/>E-mail: 915445800@qq.com</body></html>"
+#define SUCCESS_HEADER "HTTP/1.0 200 OK\r\nConnection: close\r\nVia: Mmmdbybyd(HTTP-DNS Server "VERSION")\r\n\r\n"
+
+dns_t dns_list[MAX_FD - 2];     //监听客户端FD DNS服务端fd
+struct epoll_event evs[MAX_FD - 1], ev;
+
+int listenFd, dstFd, eFd;
+socklen_t addr_len;
+void recv_dns_rsp();
+void query_dns();
+void read_client(dns_t * in);
+void response_client(dns_t * out);
+void httpdns_accept_client();
+int httpdns_initialize();
+void *httpdns_start_server();
+
+#endif

proxy.c

@@ -5,6 +5,7 @@
 #include "conf.h"
 #include "kill.h"
 #include "help.h"
+#include "httpdns.h"
 
 #define SERVER_STOP 1
 #define SERVER_RELOAD 2
@@ -95,12 +96,36 @@ void accept_client()
     epoll_ctl(epollfd, EPOLL_CTL_ADD, client->fd, &epollEvent);
 }
 
-void start_server(conf * configure)
+void *http_proxy_loop(void *p)
+{
+    conf *configure = (conf *) p;
+    int n;
+
+    while (1) {
+        n = epoll_wait(epollfd, events, MAX_CONNECTION, -1);
+        while (n-- > 0) {
+            if (events[n].data.fd == server_sock) {
+                accept_client();
+            } else {
+                if (events[n].events & EPOLLIN) {
+                    tcp_in((conn *) events[n].data.ptr, configure);
+                }
+                if (events[n].events & EPOLLOUT) {
+                    tcp_out((conn *) events[n].data.ptr);
+                }
+            }
+        }
+    }
+    close(epollfd);
+    return NULL;
+}
+
+void *start_server(conf * configure)
 {
     int n;
-    pthread_t thId;
+    pthread_t thread_id;
     if (timeout_minute)
-        pthread_create(&thId, NULL, &close_timeout_connectionLoop, NULL);
+        pthread_create(&thread_id, NULL, &close_timeout_connectionLoop, NULL);
 
     while (1) {
         n = epoll_wait(epollfd, events, MAX_CONNECTION, -1);
@@ -152,18 +177,28 @@ int process_signal(int signal, char *process_name)
         }
 
     }
+    closedir(dir);
+
+    if (signal == SERVER_STATUS) { // 状态
         n -= 2;                 // 去除最后一个搜索时的本身进程
         for (; n >= 0; n--) {
-        if (signal == SERVER_STATUS)
             printf("\t%d\n", num[n]);
         }
-    if (signal == SERVER_STOP || signal == SERVER_RELOAD) {
+    }
-        //kill(num[n], SIGTERM);
+    if (signal == SERVER_STOP) { // 关闭
         struct passwd *pwent = NULL;
         pwent = getpwnam("root");
         return kill_all(15, 1, &process_name, pwent);
     }
-    closedir(dir);
+    if (signal == SERVER_RELOAD) { // 重启
+        n -= 2;
+        for (; n >= 0; n--) {
+            //printf("\t%d\n", num[n]);
+            //printf("kill 返回 %d\n", kill(num[n], SIGTERM));
+            kill(num[n], SIGTERM);
+        }
+    }
+
     return 0;
 }
 
@@ -181,9 +216,19 @@ int get_executable_path(char *processdir, char *processname, int len)
     return (int)(filename - processdir);
 }
 
-int _main(int argc, char *argv[])
+void server_ini()
 {
-    int opt, i, process;
+    signal(SIGPIPE, SIG_IGN);   // 忽略PIPE信号
+    if (daemon(1, 1)) {
+        perror("daemon");
+        return;
+    }
+    //while (process-- > 1 && fork() == 0);
+}
+
+void _main(int argc, char *argv[])
+{
+    int opt, i;
     char path[PATH_SIZE] = { 0 };
     char executable_filename[PATH_SIZE] = { 0 };
     (void)get_executable_path(path, executable_filename, sizeof(path));
@@ -258,8 +303,9 @@ int _main(int argc, char *argv[])
                 free_conf(configure);
                 exit(process_signal(SERVER_STOP, executable_filename));
             }
-            if (strcasecmp(optarg, "restart") == 0 || strcasecmp(optarg, "reload") == 0)
+            if (strcasecmp(optarg, "restart") == 0 || strcasecmp(optarg, "reload") == 0) {
                 process_signal(SERVER_RELOAD, executable_filename);
+            }
             if (strcasecmp(optarg, "status") == 0)
                 exit(process_signal(SERVER_STATUS, executable_filename));
             break;
@@ -273,9 +319,7 @@ int _main(int argc, char *argv[])
         }
     }
 
-    server_sock = create_server_socket(configure->local_port);
+    httpdns_initialize();       // 初始化http_dns
-    signal(SIGPIPE, SIG_IGN);   // 忽略PIPE信号
-
     memset(cts, 0, sizeof(cts));
     for (i = MAX_CONNECTION; i--;)
         cts[i].fd = -1;
@@ -287,13 +331,7 @@ int _main(int argc, char *argv[])
             exit(1);
         }
     }
-
+    server_sock = create_server_socket(configure->local_port);
-    if (daemon(1, 1)) {
-        perror("daemon");
-        return 1;
-    }
-
-    while (process-- > 0 && fork() == 0)
     epollfd = epoll_create(MAX_CONNECTION);
     if (epollfd == -1) {
         perror("epoll_create");
@@ -305,15 +343,32 @@ int _main(int argc, char *argv[])
     if (-1 == epoll_ctl(epollfd, EPOLL_CTL_ADD, server_sock, &event)) {
         exit(1);
     }
-
     if (setegid(configure->uid) == -1 || seteuid(configure->uid) == -1) // 设置uid
         exit(1);
 
-    start_server(configure);
+    server_ini();               // 初始化http_proxy
-    return 0;
+    pthread_t thread_id;
+    sigset_t signal_mask;
+    sigemptyset(&signal_mask);
+    sigaddset(&signal_mask, SIGPIPE); // 忽略PIPE信号
+    if (pthread_sigmask(SIG_BLOCK, &signal_mask, NULL) != 0) {
+        printf("block sigpipe error\n");
+    }
+    pthread_detach(thread_id);
+    if (timeout_minute)
+        pthread_create(&thread_id, NULL, &close_timeout_connectionLoop, NULL);
+    if (pthread_create(&thread_id, NULL, &http_proxy_loop, (void *)configure) != 0)
+        perror("pthread_create");
+
+    if (pthread_create(&thread_id, NULL, &httpdns_start_server, NULL) != 0)
+        perror("pthread_create");
+
+    pthread_join(thread_id, NULL);
+    pthread_exit(NULL);
+
 }
 
 int main(int argc, char *argv[])
 {
-    return _main(argc, argv);
+    _main(argc, argv);
 }

proxy.h

@@ -26,6 +26,7 @@
 
 int local_port;
 char local_host[128];
+int process;
 
 extern int epollfd;
 extern struct epoll_event ev, events[MAX_CONNECTION + 1];