{"id":74620,"date":"2026-02-10T09:25:21","date_gmt":"2026-02-10T01:25:21","guid":{"rendered":"https:\/\/www.wsisp.com\/helps\/74620.html"},"modified":"2026-02-10T09:25:21","modified_gmt":"2026-02-10T01:25:21","slug":"linux-%ef%bc%88%e7%bd%91%e7%bb%9c%e7%bc%96%e7%a8%8b%e8%b7%a8%e5%b9%b3%e5%8f%b0%e5%bc%80%e5%8f%91%e5%b0%8f%e9%a1%b9%e7%9b%ae%ef%bc%89%e9%ab%98%e5%b9%b6%e5%8f%91%e4%bd%8e%e5%bb%b6%e8%bf%9f%e6%9c%8d","status":"publish","type":"post","link":"https:\/\/www.wsisp.com\/helps\/74620.html","title":{"rendered":"LINUX \uff08\u7f51\u7edc\u7f16\u7a0b\u8de8\u5e73\u53f0\u5f00\u53d1\u5c0f\u9879\u76ee\uff09\u9ad8\u5e76\u53d1\u4f4e\u5ef6\u8fdf\u670d\u52a1\u5668\u7684\u7b80\u5355\u5f00\u53d1"},"content":{"rendered":"

\u00a0\u4ecb\u7ecd：<\/h2>\n

\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u6b64\u9879\u76ee\u662f\u5229\u7528visual stdio\u5728windows\u7cfb\u7edf\u4e0b，\u642d\u5efalinux\u7684unbuntu\u7684\u73af\u5883\u8fdb\u884c\u5f00\u53d1，\u521b\u5efa\u4e00\u4e2a\u80fd\u4f7f\u7528\u6d4f\u89c8\u5668\u901a\u8fc7\u8f93\u5165\u670d\u52a1\u5668\u7684IP\u5730\u5740\u548c\u7aef\u53e3\u53f7，\u6765\u8bbf\u95ee\u670d\u52a1\u5668\u9884\u8bbe\u76ee\u5f55\u53ca\u5176\u91cc\u7684\u5185\u5bb9\u3002\u8981\u6c42\u670d\u52a1\u5668\u80fd\u591f\u5b9e\u73b0\u5bf9http\u7684get（\u9759\u6001\u8d44\u6e90\u7684\u8bf7\u6c42）\u8bf7\u6c42\u7684\u89e3\u6790\u3001\u5305\u88c5\u548c\u53d1\u9001\u3002\u5728\u4f20\u8f93\u5c42\u4e3b\u8981\u5229\u7528tcp\u534f\u8bae，\u53ef\u4ee5\u66f4\u52a0\u7b80\u5355\u65b9\u4fbf\u4e00\u70b9\u3002<\/p>\n

\u5177\u4f53\u5b9e\u73b0：<\/h2>\n

\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u670d\u52a1\u5668\u7684\u9ad8\u5e76\u53d1\u80fd\u529b\u901a\u8fc7io\u591a\u8def\u8f6c\u63a5\u6765\u5b9e\u73b0，\u8fd9\u91cc\u5177\u4f53\u91c7\u7528epoll\u6811\u3002\u56e0\u6b64\u8981\u6784\u5efa\u4e00\u4e2aepollRun()\u7684\u51fd\u6570，\u6765\u5177\u4f53\u7ba1\u7406epoll\u6811\u4e0a\u7684\u5404\u4e2a\u8282\u70b9\u3002<\/p>\n

1.\u521b\u5efa\u76d1\u542c\u6587\u4ef6\u63cf\u8ff0\u7b26，\u5e76\u4e14\u5c06\u5176\u8bbe\u7f6e\u5230epoll\u6811\u7684\u6839\u8282\u70b9\u4e0a<\/h3>\n

\u00a0 \u00a0 \u00a0 \u00a0 \u4e3a\u4e86\u4fdd\u8bc1\u4ee3\u7801\u7684\u53ef\u9605\u8bfb\u6027，\u521b\u5efa\u76d1\u542c\u6587\u4ef6\u7684\u5b9e\u73b0\u53ef\u4ee5\u901a\u8fc7\u8fd4\u56de\u503c\u662f\u6574\u578b\u7684\u51fd\u6570\u6765\u5b9e\u73b0，\u901a\u8fc7\u51fd\u6570\u521b\u5efa\u76d1\u542c\u6587\u4ef6\u5e76\u4e14\u5c06\u5176\u7684\u6587\u4ef6\u63cf\u8ff0\u7b26\u8fd4\u56de，\u6700\u540e\u52a0\u5230epoll\u6811\u7684\u6839\u8282\u70b9\u4e0a\u53bb\u3002<\/p>\n

\u4f8b\u5982：<\/p>\n

\u00a0 \u00a0 \u00a0 \u00a0 \u521b\u5efaepoll\u6811，\u5e76\u4e14\u8c03\u7528\u8bbe\u7f6e\u76d1\u542c\u6587\u4ef6\u7684\u51fd\u6570\u3002<\/p>\n

int epollRun(unsigned short port)
\n{
\n\/\/\u521b\u5efaepoll\u6811
\nint epfd = epoll_create(10);
\nif (epfd == -1)
\n{
\nperror("epoll_create error!\\\\n");
\nexit(-1);
\n}<\/p>\n

\/\/\u521b\u5efa\u76d1\u542c\u6587\u4ef6\u63cf\u8ff0\u7b26，\u5c06\u76d1\u542c\u6587\u4ef6\u7684\u6587\u4ef6\u63cf\u8ff0\u7b26\u52a0\u5165\u5230epoll\u7684\u6839\u8282\u70b9\u4e0a\u53bb
\nint lfd = addListen(port, epfd);<\/p>\n

\u00a0 \u00a0 \u00a0 \u00a0\u8bbe\u7f6e\u76d1\u542c\u6587\u4ef6\u7684\u63cf\u8ff0\u7b26\u5e76\u4e14\u5c06\u5176\u52a0\u5165\u5230epoll\u7684\u6839\u8282\u70b9\u4e0a\u53bb\u3002<\/p>\n

\u00a0 \u00a0 \u00a0 \u00a0**** \u8fd9\u91cc\u4f7f\u7528setsockopt()\u51fd\u6570\u6765\u8bbe\u7f6e\u7aef\u53e3\u590d\u7528\u3002<\/p>\n

\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0\u5e76\u4e14\u4f7f\u7528\u5f62\u53c2\u6765\u8ba9\u670d\u52a1\u5668\u5728\u8c03\u7528\u4e3b\u51fd\u6570\u65f6\u6765\u81ea\u5df1\u8bbe\u7f6e\u7aef\u53e3，\u63d0\u9ad8\u670d\u52a1\u5668\u7684\u7075\u6d3b\u6027\u3002<\/p>\n

int addListen(unsigned short port,int epfd)
\n{
\n\/\/\u521b\u5efa\u76d1\u542c\u6587\u4ef6\u7684\u6587\u4ef6\u63cf\u8ff0\u7b26
\nint lfd = socket(AF_INET, SOCK_STREAM, 0);
\nif (lfd == -1)
\n{
\nperror("socket error\\\\n");
\nexit(-1);
\n}<\/p>\n

\/\/\u8bbe\u7f6e\u7aef\u53e3\u590d\u7528
\nint opt = 1;
\nint ret = setsockopt(lfd, SOL_SOCKET, SO_REUSEADDR, &opt, sizeof(opt));
\nif (ret == -1)
\n{
\nperror("setsocket error!\\\\n");
\nexit(-1);
\n}<\/p>\n

\/\/\u7ed1\u5b9a
\nstruct sockaddr_in addr;
\naddr.sin_family = AF_INET;
\naddr.sin_port = htons(port);\/\/\u7528\u6237\u81ea\u5df1\u8f93\u5165\u7aef\u53e3，\u7075\u6d3b\u4e00\u70b9
\naddr.sin_addr.s_addr = INADDR_ANY;
\nret = bind(lfd, (struct sockaddr*)&addr, sizeof(addr));
\nif (ret == -1)
\n{
\nperror("bind error\\\\n");
\nexit(-1);
\n}<\/p>\n

\/\/\u8bbe\u7f6e\u76d1\u542c
\nret = listen(lfd, 128);
\nif (ret == -1)
\n{
\nperror("listen error\\\\n");
\nexit(-1);
\n}<\/p>\n

\/\/\u5c06\u76d1\u542c\u6587\u4ef6\u63cf\u8ff0\u7b26\u52a0\u5165\u5230\u6839\u8282\u70b9\u4e0a\u53bb
\nstruct epoll_event ev;
\nev.data.fd = lfd;
\nev.events = EPOLLIN;
\nepoll_ctl(epfd, EPOLL_CTL_ADD, lfd, &ev);
\nif (ret == -1)
\n{
\nperror("epoll_ctl error\\\\n");
\nexit(-1);
\n}<\/p>\n

return lfd;
\n}<\/p>\n

2.\u5faa\u73af\u68c0\u6d4bepoll\u6811\u4e0a\u7684\u8282\u70b9，\u6765\u8fdb\u884c\u901a\u4fe1\u6216\u8005\u5efa\u7acb\u65b0\u8fde\u63a5<\/h3>\n

\u00a0 \u00a0 \u00a0 \u00a0 \u82e5\u662f\u76d1\u542c\u6587\u4ef6\u7684\u8bfb\u7f13\u51b2\u533a\u6709\u4fe1\u606f，\u5c31\u5efa\u7acb\u65b0\u7684\u8fde\u63a5，\u5e76\u4e14\u521b\u5efa\u65b0\u7684\u901a\u4fe1\u6587\u4ef6\u63cf\u8ff0\u7b26\u5c06\u5176\u7684\u8bfb\u7f13\u51b2\u533a\u52a0\u5230epoll\u6811\u7684\u8282\u70b9\u4e0a\u53bb\u3002\u8fd9\u91cc\u4f9d\u7136\u4f7f\u7528\u51fd\u6570\u6765\u5b8c\u6210\u3002<\/p>\n

\/\/\u5faa\u73af\u68c0\u6d4b\u76d1\u542c\u6587\u4ef6\u548c\u901a\u4fe1\u6587\u4ef6\u7684\u6587\u4ef6\u63cf\u8ff0\u7b26\u7684\u8bfb\u7f13\u51b2\u533a
\nstruct epoll_event evs[1024];
\nint size = sizeof(evs)\/sizeof(evs[0]);
\nwhile (1)
\n{
\nint num = epoll_wait(epfd, evs, size, -1);
\nif (num == -1)
\n{
\nperror("epoll-wait error!\\\\n");
\nreturn -1;
\n}
\nfor (int i = 0; i < num; i++)
\n{
\n\/\/\u76d1\u542c\u6587\u4ef6\u7684\u8bfb\u7f13\u51b2\u533a\u6709\u6570\u636e
\nif (evs[i].data.fd == lfd)
\n{
\n\/\/\u4e0e\u5ba2\u6237\u7aef\u8fdb\u884c\u94fe\u63a5，\u5e76\u4e14\u5c06\u901a\u4fe1\u6587\u4ef6\u7684\u6587\u4ef6\u63cf\u8ff0\u7b26\u52a0\u5165\u5230epoll\u7684\u8282\u70b9\u4e0a，\u8bbe\u7f6e\u4e3a\u8fb9\u6cbf\u975e\u963b\u6a21\u5f0f
\naddClient(lfd, epfd);
\n}<\/p>\n

\u00a0 \u00a0 \u00a0 \u00a0 \u5728\u8c03\u7528\u6dfb\u52a0\u65b0\u7684\u6587\u4ef6\u63cf\u8ff0\u7b26\u65f6，\u5c06\u5176\u8bbe\u7f6e\u4e3a\u8fb9\u6cbf\u975e\u963b\u585e\u7684\u6a21\u5f0f，\u6765\u63d0\u9ad8\u901a\u4fe1\u7684\u6548\u7387\u3002<\/p>\n

int addClient(int lfd, int epfd)
\n{
\n\/\/\u4e0e\u5ba2\u6237\u7aef\u8fdb\u884c\u8fde\u63a5，\u5e76\u4e14\u521b\u5efa\u901a\u4fe1\u6587\u4ef6\u7684\u6587\u4ef6\u63cf\u8ff0\u7b26
\nint cfd = accept(lfd, NULL, NULL);
\nif (cfd == -1)
\n{
\nperror("accept error!\\\\n");
\nreturn -1;
\n}<\/p>\n

\/\/\u5c06\u901a\u4fe1\u6587\u4ef6\u7684\u6587\u4ef6\u63cf\u8ff0\u7b26\u8bbe\u7f6e\u4e3a\u975e\u963b\u585e\u6a21\u5f0f
\nint flag = fcntl(cfd, F_GETFL);
\nflag |= O_NONBLOCK;
\nint ret = fcntl(cfd, F_SETFL, flag);<\/p>\n

\/\/\u5c06\u901a\u4fe1\u6587\u4ef6\u7684\u6587\u4ef6\u63cf\u8ff0\u7b26\u52a0\u5165\u5230epoll\u6811\u4e0a，\u5e76\u4e14\u8bbe\u7f6e\u4e3a\u8fb9\u6cbf\u6a21\u5f0f
\nstruct epoll_event ev;
\nev.data.fd = cfd;
\nev.events = EPOLLIN | EPOLLET;
\nret = epoll_ctl(epfd, EPOLL_CTL_ADD, cfd, &ev);
\nif (ret == -1)
\n{
\nperror("epoll_ctl error!\\\\n");
\nreturn -1;
\n}<\/p>\n

return 0;
\n}<\/p>\n

\u5982\u679c\u662f\u901a\u4fe1\u6587\u4ef6\u7684\u6587\u4ef6\u63cf\u8ff0\u7b26\u7684\u8bfb\u7f13\u51b2\u533a\u6709\u4fe1\u606f，\u5c31\u5f00\u59cb\u8fdb\u884c\u901a\u4fe1\u3002<\/p>\n

\u901a\u4fe1\u7684\u8fc7\u7a0b\u4e3b\u8981\u5206\u4e3a1.\u63a5\u53d7\u5ba2\u6237\u7aef\u7684http\u8bf7\u6c42 2.\u89e3\u6790http\u7684\u8bf7\u6c42\u4fe1\u606f 3.\u63d0\u51fa\u5ba2\u6237\u7aef\u8bf7\u6c42\u4fe1\u606f\u7684\u5185\u5bb9\u00a0 4.\u6309\u7167http\u7684\u683c\u5f0f\u6765\u53d1\u9001\u5185\u5bb9<\/p>\n

3.\u63a5\u6536http\u7684\u8bf7\u6c42\u5185\u5bb9<\/h3>\n

\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u56e0\u4e3a\u5f53\u524d\u670d\u52a1\u5668\u53ea\u8003\u8651get（\u9759\u6001\u8d44\u6e90）\u7684\u8bf7\u6c42，\u6240\u4ee5\u5176http\u8bf7\u6c42\u7684\u6709\u6548\u5185\u5bb9\u5f88\u5c0f，\u53ea\u7528\u9884\u8bbe4\u5b57\u8282\u6765\u4fdd\u5b58\u8bf7\u6c42\u5185\u5bb9\u5373\u53ef\u3002\u53c8\u56e0\u4e3a\u5176\u662f\u8fb9\u6cbf\u975e\u963b\u585e\u7684\u6a21\u5f0f，\u6240\u4ee5\u8bfb\u5b8c\u5185\u5bb9\u53ea\u7528\u5224\u65ad\u9519\u8bef\u63d0\u793a\u6ee1\u4e0d\u6ee1\u8db3EAGAIN\u5373\u53ef\u3002<\/p>\n

\u00a0 \u00a0 \u00a0 \u00a0 \u771f\u6b63\u5728get\u7c7b\u578b\u7684http\u8bf7\u6c42\u4e2d\u80fd\u4f7f\u7528\u5230\u7684\u4fe1\u606f，\u53ea\u6709http\u8bf7\u6c42\u7684\u7b2c\u4e00\u884c\u5185\u5bb9，\u91cc\u9762\u5305\u62ec\u4e86\u8bf7\u6c42\u65b9\u5f0f\u3001\u8bf7\u6c42\u5185\u5bb9\u3001http\u534f\u8bae\u811a\u672c，\u5df2\u7ecf\u53ef\u4ee5\u6ee1\u8db3\u4e0e\u670d\u52a1\u5668\u76f8\u5e94\u5ba2\u6237\u7aef\u8bf7\u6c42，\u56e0\u6b64\u53ea\u8981\u4fdd\u5b58\u7b2c\u4e00\u884c\u5185\u5bb9\u5373\u53ef\u3002\u53c8\u56e0\u4e3ahttp\u534f\u8bae\u662f\u901a\u8fc7\/r\/n\u6765\u8fdb\u884c\u6362\u884c\u7684，\u6240\u4ee5\u53ea\u8981\u4f7f\u7528\u7cfb\u7edf\u51fd\u6570\u627e\u5230\u8bf7\u6c42\u4fe1\u606f\u4e2d\u7684\u7b2c\u4e00\u4e2a\/r\/n\u7684\u4f4d\u7f6e，\u5c31\u80fd\u5f97\u5230\u6211\u4eec\u6240\u9700\u8981\u7684\u8bf7\u6c42\u4fe1\u606f\u3002（\u8fd9\u91cc\u4f7f\u7528strstr()\u51fd\u6570）\u3002<\/p>\n

int recvHttp(int cfd,int epfd)
\n{
\n\/*get\u8bf7\u6c42\u7c7b\u578b\u7684\u683c\u5f0f
\n*\u7b2c\u4e00\u884c：\u8bf7\u6c42\u884c
\n*\u7b2c\u4e00\u90e8\u5206：GET \u7b2c\u4e8c\u90e8\u5206：\u5ba2\u6237\u7aef\u8981\u8bbf\u95ee\u7684\u8d44\u6e90\u7684\u76ee\u5f55 \u7b2c\u4e09\u90e8\u5206：http\u534f\u8bae\u7684\u811a\u672c
\n*\u7b2c\u4e8c\u5230N\u884c：\u8bf7\u6c42\u5934
\n* \u5ba2\u6237\u7aef\u7684ip\u5730\u5740\u548c\u7aef\u53e3\u53f7
\n*\u5269\u4e0b\u6765\u5168\u662f\u7a7a\u884c
\n*\/<\/p>\n

\/\/\u6240\u4ee5\u4e0d\u7528\u5c06\u5168\u90e8\u7684\u8bf7\u6c42\u4fe1\u606f\u90fd\u4fdd\u7559\u4e0b\u6765，\u53ea\u9700\u5c06\u8bf7\u6c42\u4fe1\u606f\u7684\u7684\u7b2c\u4e00\u884c\u4fdd\u5b58\u4e0b\u6765\u5373\u53ef
\n\/\/http\u534f\u8bae\u662f\u901a\u8fc7\/r\/n\u7684\u65b9\u5f0f\u8fdb\u884c\u6362\u884c\u7684<\/p>\n

char buf_r[1024];\/\/\u6bcf\u6b21\u63a5\u53d71k\u7684\u6570\u636e\u91cf
\nmemset(buf_r, 0, sizeof(buf_r));
\nchar buf[4096];\/\/\u8bfb\u51fa\u6765\u7684\u4fe1\u606f\u7684\u7f13\u51b2\u533a
\nmemset(buf, 0, sizeof(buf));
\nint len = 0;\/\/\u6bcf\u6b21\u63a5\u53d7\u7684\u6570\u636e\u91cf
\nint total = 0;\/\/buf\u4e2d\u5df2\u7ecf\u7f13\u5b58\u7684\u6570\u636e\u91cf
\nwhile ((len = recv(cfd, buf_r, sizeof(buf_r), 0)) > 0)
\n{
\nif (total + len <= sizeof(buf))
\n{
\nmemcpy(buf+total, buf_r, len);\/\/\u7b2c\u4e00\u4e2a\u53c2\u6570\u8868\u793a\u5411\u53f3\u504f\u79fbtotal\u4e2a\u5b57\u8282\u6570
\ntotal += len;
\n}
\n}<\/p>\n

\/\/\u6587\u4ef6\u7684\u63cf\u8ff0\u7b26\u662f\u975e\u963b\u585e\u7684，\u6240\u4ee5\u8fd9\u79cd\u60c5\u51b5\u662f\u6587\u4ef6\u63cf\u8ff0\u7b26\u7684\u90fd\u7f13\u51b2\u533a\u4e2d\u7684\u5185\u5bb9\u8bfb\u5b8c\u4e86
\nif (len == -1 && errno == EAGAIN)
\n{
\n\/\/\u5c06\u8bf7\u6c42\u884c\u7684\u5185\u5bb9\u62ff\u51fa\u6765
\nchar* pt = strstr(buf, "\\\\r\\\\n");
\n\/\/\u4e24\u4e2a\u6307\u9488\u76f8\u51cf\u5c31\u80fd\u5f97\u5230\u8d77\u59cb\u4f4d\u7f6e\u548c\u672b\u5c3e\u4f4d\u7f6e\u4e4b\u95f4\u7684\u5143\u7d20\u504f\u79fb\u91cf
\nint reqLine = pt – buf;
\n\/\/ \/0 \u8868\u793a\u622a\u65ad
\nbuf[reqLine] = "\/0";<\/p>\n

\/\/\u5206\u6790buf\u4e2d\u7684http\u8bf7\u6c42
\nparaseLine(buf, cfd);
\n}<\/p>\n

4.\u89e3\u6790http\u7684\u8bf7\u6c42\u884c<\/h3>\n

\u5728\u7b2c\u4e09\u6b65\u5f97\u5230\u4e86http\u7684\u8bf7\u6c42\u884c\u5185\u5bb9，\u8fd9\u4e00\u6b65\u5c31\u8981\u5bf9\u5f97\u5230\u7684\u8bf7\u6c42\u884c\u5185\u5bb9\u6765\u8fdb\u884c\u89e3\u6790\u3002<\/p>\n

\u8bf7\u6c42\u884c\u7684\u5185\u5bb9\u4e3b\u8981\u5305\u62ec\u4e09\u90e8\u5206，\u4e14\u4e2d\u95f4\u662f\u901a\u8fc7\u7a7a\u683c\u9694\u5f00，\u7b2c\u4e00\u90e8\u5206\u65f6\u8bf7\u6c42\u65b9\u5f0f（get\/post)，\u7b2c\u4e8c\u90e8\u5206\u662f\u8bf7\u6c42\u7684\u76ee\u5f55，\u7b2c\u4e09\u90e8\u5206\u662f\u4f7f\u7528\u7684http\u534f\u8bae\u7684\u7248\u672c\u3002\u5728\u8fd9\u91cc\u4e3b\u8981\u7528\u5230\u7684\u662f\u524d\u4e24\u90e8\u5206，\u56e0\u6b64\u6211\u4eec\u4f7f\u7528sccanf(),\u7528\u6b63\u5219\u8868\u8fbe\u5f0f\u6765\u5c06\u524d\u4e24\u90e8\u5206\u53d6\u51fa\u6765\u4f7f\u7528\u3002<\/p>\n

\u6211\u4eec\u9996\u5148\u8981\u5224\u65ad\u662f\u4e0d\u662fget\u65b9\u5f0f\u6765\u8bf7\u6c42\u7684\u6570\u636e，\u4e0d\u662f\u7684\u8bdd\u5c31\u63d0\u793a\u8bf7\u6c42\u975e\u6cd5，\u662f\u7684\u8bdd\u5c31\u63a5\u7740\u5bf9\u8bf7\u6c42\u7684\u76ee\u5f55\u6765\u8fdb\u884c\u64cd\u4f5c\u3002\u56e0\u4e3a\u5728\u8fd0\u884c\u670d\u52a1\u65f6\u6211\u4eec\u6307\u5b9a\u4e86\u670d\u52a1\u5668\u7684\u6839\u76ee\u5f55\u662f\u6211\u4eec\u9884\u8bbe\u597d\u7684\u8d44\u6e90\u76ee\u5f55，\u6240\u4ee5\u5ba2\u6237\u7aef\u5728\u8bf7\u6c42\u65f6\u65f6\u5c06\u8d44\u6e90\u5f53\u4f5c\u6839\u76ee\u5f55\u6765\u8fdb\u884c\u8bf7\u6c42\u7684，\u56e0\u6b64\u6211\u4eec\u8981\u5c06\u5ba2\u6237\u7aef\u8bf7\u6c42\u7684\u76ee\u5f55\u8f6c\u6362\u6210\u670d\u52a1\u5668\u5b9e\u9645\u7684\u7edd\u5bf9\u8def\u5f84\u76ee\u5f55\u624d\u53ef\u4ee5\u64cd\u4f5c\u3002\u8fd9\u91cc\u6211\u4eec\u5728\u4e3b\u51fd\u6570\u5185\u8bbe\u7f6e\u4e00\u4e2a\u4f20\u5165\u53c2\u6570，\u8fd9\u6837\u5728\u670d\u52a1\u5668\u521a\u5f00\u59cb\u542f\u52a8\u65f6，\u5c31\u53ef\u4ee5\u4f7f\u7528mkdir()<\/span>\u51fd\u6570\u6765\u628a\u670d\u52a1\u5668\u8fd0\u884c\u5728\u8d44\u6e90\u6839\u76ee\u5f55\u7684\u6587\u4ef6\u5939\u4e2d\u3002<\/p>\n

\u4f8b\u5982：\u00a0\u5ba2\u6237\u7aef\u8bf7\u6c42\u7684\u76ee\u5f55\u662f ： \/ —–>\u670d\u52a1\u5668\u8981\u8f6c\u6362\u6210： .\/\u00a0<\/p>\n

\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u5ba2\u6237\u7aef\u8bf7\u6c42\u7684\u76ee\u5f55\u662f：\/hello\/world\/…\u00a0 \u00a0 —–>\u670d\u52a1\u5668\u8981\u8f6c\u6362\u6210： hello\/world\/..（\u8fd9\u91cc\u5229\u7528\u6307\u9488\u53f3\u79fb\u6765\u5b8c\u6210）<\/p>\n

int paraseLine(const char* requestLine,int cfd)
\n{
\n\/\/\u8bf7\u6c42\u884c\u5185\u5bb9 GET \/hello\/world\/ http\/1.1
\nchar method[6];
\nchar fileName[1024];
\n\/\/\u6b63\u5219\u8868\u8fbe\u5f0f
\nsscanf(requestLine, "[^ ] [^ ]", method, fileName);<\/p>\n

\/\/\u5224\u65ad\u662f\u4e0d\u662f\u7528get \u7684\u65b9\u5f0f\u6765\u8bf7\u6c42\u7684
\n\/\/\u4e0d\u662fget
\nif (memcmp(method, "GET", strlen(method))!= 0)
\n{
\nprintf("\u5ba2\u6237\u7aef\u8bf7\u6c42\u4e0d\u5408\u6cd5\\\\n");
\nreturn -1;
\n}
\n\/\/\u662fget
\nelse
\n{
\n\/\/\u662f\u4ee5\u670d\u52a1\u5668\u7684\u8d44\u6e90\u6839\u76ee\u5f55\u4f5c\u4e3a\u603b\u7684\u6839\u76ee\u5f55\u6765\u8bf4\u7684
\n\/\/\u5c06\u8f93\u5165\u7684\u8def\u5f84\u540d\u5b57\u8f6c\u6362\u6210\u7edd\u5bf9\u6216\u8005\u76f8\u5bf9\u8def\u5f84
\n\/*
\n\u53ef\u80fd\u6709\u8fd9\u51e0\u79cd\u65b9\u5f0f
\n1.\/ ==> \u670d\u52a1\u5668\u9884\u8bbe\u7684\u8d44\u6e90\u6839\u76ee\u5f55
\n2.\/hello\/word\/… ==> hello\/word\/…（\u56e0\u4e3a\u5de5\u4f5c\u8def\u5f84\u5df2\u7ecf\u5728\u8d44\u6e90\u76ee\u5f55\u4e4b\u4e0b，\u6240\u4ee5\u5176\u7edd\u5bf9\u8def\u5f84\u53ea\u9700\u5c06\u524d\u9762\u7684\u6839\u76ee\u5f55\u53bb\u6389\u5373\u53ef）
\n*\/<\/p>\n

\/\/\u786e\u5b9a\u6587\u4ef6\u7684\u7edd\u5bf9\u8def\u5f84
\nchar* file = NULL ;<\/p>\n

\/\/1.
\nif (memcmp(fileName, "\/", strlen(fileName)) == 0)
\n{
\nfile = ".\/";
\n}<\/p>\n

\/\/2
\nelse
\n{
\nfile = fileName+ 1;\/\/\u6307\u9488\u53f3\u79fb
\n}<\/p>\n

\u00a0 \u00a0 \u00a0 \u00a0 5.\u53d1\u9001\u6587\u4ef6\u5185\u5bb9<\/h3>\n

\u5728\u53d1\u9001\u6587\u4ef6\u5185\u5bb9\u4e4b\u524d，\u6211\u4eec\u8981\u8fdb\u884c\u7b80\u5355\u7684\u5224\u65ad，\u8be5\u6587\u4ef6\u662f\u4e0d\u662f\u76ee\u5f55\u6587\u4ef6，\u4e0d\u662f\u76ee\u5f55\u6587\u4ef6\u6211\u4eec\u5c31\u79f0\u4e3a\u666e\u901a\u6587\u4ef6\u3002\u8fd9\u91cc\u4f7f\u7528stat()\u51fd\u6570\u6765\u8fdb\u884c\u5224\u65ad\u3002<\/p>\n

\/\/1.
\nstruct stat st;
\nint ret = stat(file, &st);
\nunsigned long length;
\n\/\/\u51fd\u6570\u8c03\u7528\u5931\u8d25，\u6ca1\u6709\u8fd9\u4e2a\u6587\u4ef6
\nif (ret == -1)
\n{
\nfile = "\/home\/zx\/text\/20201103174810732538.webp";
\nstat(file, &st);
\nlength = st.st_size;
\n\/\/\u53d1\u9001\u5934\u4fe1\u606f
\nsendHead(cfd, 200, "OK", conductType(file), length);<\/p>\n

\/\/\u8fd4\u56de404\u7684\u56fe\u7247
\nsendMasage(cfd, file);<\/p>\n

}
\n\/\/\u6210\u529f，\u5224\u65ad\u662f\u666e\u901a\u6587\u4ef6\u8fd8\u662f\u76ee\u5f55
\nelse
\n{
\n length = st.st_size;
\n\/\/\u76ee\u5f55
\nif (S_ISDIR(st.st_mode))
\n{
\n\/\/\u53d1\u9001\u5934\u4fe1\u606f,\u662f\u4ee5.html\u7684（\u8868\u683c）\u683c\u5f0f\u6765\u53d1\u9001\u6587\u4ef6\u7684
\nsendHead(cfd, 200, "OK", conductType(".html"), length);<\/p>\n

\/\/\u53d1\u9001\u76ee\u5f55
\nsendDir(cfd, file);<\/p>\n

}
\n\/\/\u666e\u901a\u6587\u4ef6
\nelse
\n{
\n\/\/\u53d1\u9001\u5934\u4fe1\u606f
\nsendHead(cfd, 200, "OK", conductType(file), length);<\/p>\n

\/\/\u53d1\u9001\u6587\u4ef6\u5185\u5bb9
\nsendMasage(cfd, file);
\n}
\n}<\/p>\n

5.1\u666e\u901a\u6587\u4ef6<\/h4>\n

\u5224\u65ad\u51fa\u6765\u662f\u666e\u901a\u6587\u4ef6，\u5c31\u8981\u5c06\u6587\u4ef6\u7684\u5185\u5bb9\u63d0\u53d6\u51fa\u6765，\u6309\u7167http\u534f\u8bae\u7684\u683c\u5f0f\u53d1\u9001\u7ed9\u5ba2\u6237\u7aef\u3002<\/p>\n

\u5148\u6765\u8bf4\u53d1\u9001\u6587\u4ef6http\u534f\u8bae\u7684\u683c\u5f0f：<\/p>\n

\u7b2c\u4e00\u884c：\u72b6\u6001\u884c \u00a0(http \u534f\u8bae\u7248\u672c，\u72b6\u6001\u7801，\u5bf9\u72b6\u6001\u7801\u7684\u63cf\u8ff0）
\n\u7b2c\u4e8c\u884c：\u54cd\u5e94\u5934 （\u53ea\u8981\u6709content-type \u00a0content-lenth\u5185\u5bb9\u5373\u53ef）\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/p>\n

\u7b2c\u4e09\u884c：\u00a0 \u7a7a\u884c<\/p>\n

\u7b2c\u56db\u884c：\u6587\u4ef6\u5185\u5bb9\u00a0 \u00a0<\/p>\n

\u9274\u4e8e\u4f7f\u7528\u7684\u662ftcp\u4f20\u8f93\u534f\u8bae，\u5e76\u4e14\u5728\u4f20\u8f93\u76ee\u5f55\u548c\u672a\u627e\u5230\u76f8\u5e94\u76ee\u5f55\u65f6\u90fd\u8981\u53d1\u9001\u51e0\u4e4e\u7c7b\u4f3c\u7684\u524d\u4e09\u884c\u4fe1\u606f，\u56e0\u6b64\u53ef\u4ee5\u5c06\u53d1\u9001\u524d\u4e09\u884c\u5185\u5bb9\u5199\u6210\u4e00\u4e2a\u51fd\u6570，\u5728\u4e0d\u540c\u7684\u5730\u65b9\u76f4\u63a5\u8c03\u7528\u5373\u53ef\u3002\u7b2c\u4e00\u884c\u5185\u5bb9\u56fa\u5b9a\u7684：http1.1 200 OK\u8fd9\u4e2a\u53ef\u4ee5\u76f4\u63a5\u53d1\u9001，\u7b2c\u4e8c\u884c\u5185\u5bb9\u4e0d\u540c\u6587\u4ef6\u5bf9\u5e94\u7684content-type \u548ccontent- length\u662f\u4e0d\u540c\u7684，\u53ef\u4ee5\u67e5\u5230\u5404\u4e2a\u4e0d\u540c\u540e\u7f00\u540d\u5bf9\u5e94\u7684content-type，\u56e0\u6b64\u5c06\u5176\u53ef\u4ee5\u5199\u6210\u4e00\u4e2a\u51fd\u6570，\u901a\u8fc7\u6587\u4ef6\u7684\u540e\u7f00\u540d\u6765\u67e5\u627e\u5e76\u8fd4\u56de\u51fa\u5176\u5bf9\u5e94\u7684content-type（\u8fd9\u91cc\u4f7f\u7528strrchr()\u51fd\u6570\u6765\u67e5\u627e\u201c.\u201d\u540e\u9762\u7684\u6587\u4ef6\u540e\u7f00\u540d），\u6700\u7ec8\u5f97\u5230contnnt-type\u3002\u800ccontent-length\u53ef\u4ee5\u901a\u8fc7stat()\u51fd\u6570\u7684\u4f20\u51fa\u53c2\u6570\u7684\u5143\u7d20\u6765\u786e\u5b9a\u3002<\/p>\n

\u6587\u4ef6\u5185\u5bb9\u7684\u83b7\u53d6\u5148\u901a\u8fc7open()\u51fd\u6570\u6253\u5f00\u6307\u5b9a\u6587\u4ef6\u76ee\u5f55，\u518d\u5728while()\u5faa\u73af\u4e2d\u4e0d\u65ad\u5730\u8bfb\u53d6\u6587\u4ef6\u7684\u5185\u5bb9，\u5728\u4e0d\u65ad\u8fdb\u884c\u53d1\u9001，\u5728\u5ba2\u6237\u7aef\u4f1a\u6309\u7167content-type\u7684\u65b9\u5f0f\u6765\u8fdb\u884c\u8868\u73b0\u3002<\/p>\n

\u53d1\u9001\u6587\u4ef6\u5934（\u524d\u4e09\u884c\u5185\u5bb9）<\/p>\n

int sendHead(int cfd,int statnum,const char *state,const char *type,unsigned long length)
\n{
\n\/\/\u72b6\u6001\u884c (http \u534f\u8bae\u7248\u672c，\u72b6\u6001\u7801，\u5bf9\u72b6\u6001\u7801\u7684\u63cf\u8ff0）
\n\/\/\u54cd\u5e94\u5934 （content-type content-lenth）
\n\/\/\u56e0\u4e3a\u4f7f\u7528\u7684\u662ftcp\u4f20\u8f93\u534f\u8bae，\u6240\u4ee5\u4e0d\u7528\u4e00\u6b21\u5168\u90e8\u90fd\u53d1
\nchar buf_s[4096];
\nmemset(buf_s, 0, sizeof(buf_s));<\/p>\n

\/\/\u72b6\u6001\u884c (http \u534f\u8bae\u7248\u672c，\u72b6\u6001\u7801，\u5bf9\u72b6\u6001\u7801\u7684\u63cf\u8ff0）
\nsprintf(buf_s, "HTTP\/1.1 %d %s\\\\r\\\\n", statnum, state);<\/p>\n

\/\/\u54cd\u5e94\u5934 （content-type content-lenth）
\nsprintf(buf_s, "Content-Type:%s\\\\r\\\\n", type);
\nsprintf(buf_s, "Content-Length:%d\\\\r\\\\n", length);<\/p>\n

\/\/\u7a7a\u884c
\nsprintf(buf_s, "\\\\r\\\\n");<\/p>\n

\/\/\u53d1\u9001
\nint num = send(cfd, buf_s, sizeof(buf_s), 0);
\nif (num == -1)
\n{
\nperror("send error!\\\\n");
\nreturn -1;<\/p>\n

}<\/p>\n

return 0;
\n}<\/p>\n

\u00a0 \u00a0 \u00a0\u4e0d\u540c\u666e\u901a\u6587\u4ef6\u5bf9\u5e94\u7684content-type<\/p>\n

const char* conductType(const char* file)
\n{
\nconst char* dot = strrchr(file, ".");
\nif (dot == NULL)
\n{
\nreturn "text\/plain; charset=utf-8";
\n}
\nif (strcmp(dot, ".html") == 0 || strcmp(dot, ".htm") == 0)
\n{
\nreturn "text\/html;charset=utf-8";
\n}
\nif (strcmp(dot, ".jpg") == 0 || strcmp(dot, ".jpeg") == 0)
\n{
\nreturn "image\/jpeg";
\n}
\nif (strcmp(dot, ".gif") == 0)
\n{
\nreturn "image\/gif";
\n}
\nif (strcmp(dot, ".png") == 0)
\n{
\nreturn "image\/png";
\n}
\nif (strcmp(dot, ".css") == 0)
\n{
\nreturn "text\/css";
\n}
\nif (strcmp(dot, ".au") == 0)
\n{
\nreturn "audio\/basic";
\n}
\nif (strcmp(dot, ".wav") == 0)
\n{
\nreturn "audio\/wav";
\n}
\nif (strcmp(dot, ".avi") == 0)
\n{
\nreturn "video\/avi";
\n}
\nif (strcmp(dot, ".mov") == 0 || strcmp(dot, ".qt") == 0)
\n{
\nreturn "video\/quicktime";
\n}
\nif (strcmp(dot, ".mp3") == 0)
\n{
\nreturn "audio\/mp3";
\n}
\nif (strcmp(dot, ".webp") == 0)
\n{
\nreturn "image\/webp";
\n}
\nreturn "text\/plain; charset=utf-8";
\n}<\/p>\n

\u00a0 \u00a0 \u00a0\u53d1\u9001\u6587\u4ef6\u5185\u5bb9<\/p>\n

int sendMasage(int cfd, const char* file)
\n{
\n\/\/\u6253\u5f00\u8bf7\u6c42\u7684\u6587\u4ef6
\nint fd = open(file, O_RDONLY);
\nif (fd == -1)
\n{
\nperror("open error!\\\\n");
\nreturn -1;
\n}<\/p>\n

\/\/\u5c06\u8bf7\u6c42\u7684\u6587\u4ef6\u8bfb\u5230buf\u7f13\u5b58\u4e4b\u4e2d
\nchar buf[4096];
\nmemset(buf, 0, sizeof(buf));
\nwhile (1)
\n{
\nint len = read(cfd, buf, sizeof(buf));
\nif (len < 0)
\n{
\nperror("read error\\\\n");
\nreturn -1;
\n}
\n\/\/\u6309\u7167http\u534f\u8bae\u7684\u683c\u5f0f\u5c06buf\u7684\u5185\u5bb9\u53d1\u9001\u51fa\u53bb
\nelse if (len > 0)
\n{
\nsend(cfd, buf, strlen(buf), 0);
\n}
\n\/\/\u6587\u4ef6\u8bfb\u5b8c\u4e86
\nelse
\n{
\nbreak;
\n}
\n}
\nreturn 0;
\n}<\/p>\n

\u00a0 \u00a0 \u00a0 \u00a0 \u00a0\u00a0<\/p>\n

5.2\u76ee\u5f55\u6587\u4ef6<\/h4>\n

\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u5bf9\u4e8e\u76ee\u5f55\u6587\u4ef6\u7684\u64cd\u4f5c\u548c\u5bf9\u666e\u901a\u7684\u6587\u4ef6\u7684\u64cd\u4f5c\u7684\u539f\u7406\u57fa\u672c\u4e00\u81f4，\u4f46\u662f\u5bf9\u4e8e\u76ee\u5f55\u6587\u4ef6\u6211\u4eec\u8981\u5c06\u76ee\u5f55\u6587\u4ef6\u7684\u5185\u5bb9\u4ee5\u8868\u683c\u7684\u5f62\u5f0f（\u7b2c\u4e00\u5217\u662f\u6587\u4ef6\u540d\u3002\u7b2c\u4e8c\u5217\u662f\u6587\u4ef6\u5927\u5c0f）\u8868\u793a\u51fa\u6765\u3002\u56e0\u6b64\u5728\u4f20\u8f93\u7684\u8fc7\u7a0b\u4e4b\u4e2d，\u8981\u4ee5.html\u7684\u6587\u4ef6\u4f20\u8f93\u51fa\u53bb，\u8fd9\u6837\u624d\u80fd\u5728\u7f51\u9875\u4e2d\u5c55\u793a\u51fa\u8868\u683c\u7684\u5f62\u5f0f\u6765，\u56e0\u6b64html\u8bed\u8a00\u7684\u683c\u5f0f\u5728\u8fd9\u4e00\u5757\u8981\u719f\u7ec3\u638c\u63e1，\u5e76\u4e14\u5bf9\u5e94\u7684content-type\u4e5f\u8981\u4e0e.html\u6587\u4ef6\u5bf9\u5e94\u3002<\/p>\n

\u00a0 \u00a0 \u00a0 \u00a0 \u5728\u904d\u5386\u76ee\u5f55\u6587\u4ef6\u65f6\u6211\u4eec\u91c7\u7528scandir()<\/span>\u7684\u51fd\u6570：<\/p>\n

scandir（）\u904d\u5386\u76ee\u5f55\u7684\u51fd\u6570\u4ecb\u7ecd<\/h6>\n

int num = scandir(file, &dir, NULL, alphasort);<\/p>\n

\u53c21：\u8981\u904d\u5386\u7684\u6587\u4ef6\u540d\u6307\u9488<\/p>\n

\u53c22：\u4f20\u51fa\u53c2\u6570，\u662f\u4e00\u4e2astruct dirent**(\u4e8c\u7ea7\u6307\u9488)\u7684\u5730\u5740，\u8fd9\u4e2a\u4e8c\u7ea7\u6307\u9488\u662f\u6307struct dirent*[]（\u662fstruct dirent \u7684\u6307\u9488\u6570\u7ec4），struct dirent\u4e2d\u6709\u8868\u793a\u76ee\u5f55\u540d\u5b57\u7684\u5143\u7d20\u3002<\/p>\n

\u53c23：\u56de\u8c03\u51fd\u6570，\u8868\u793a\u8fc7\u6ee4\u6761\u4ef6，\u4e00\u822c\u5199NULL；<\/p>\n

\u53c24：\u56de\u8c03\u51fd\u6570，\u8868\u793a\u6309\u7167\u54ea\u79cd\u65b9\u5f0f\u6765\u904d\u5386：alphasort（askll\u7801\u503c）<\/p>\n

\u8fd4\u56de\u503c：\u6210\u529f：\u8fd4\u4f1a\u76ee\u5f55\u4e2d\u6587\u4ef6\u7684\u4e2a\u6570<\/p>\n

\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0\u5931\u8d25：-1 errno;<\/p>\n

\u6ce8\u610f：\u5728\u4f7f\u7528\u8fd9\u4e2a\u51fd\u6570\u65f6，\u53c2\u65704\u8981\u5728linux\u7684\u73af\u5883\u5c0f\u8fd0\u884c，\u5982\u679c\u62a5\u9519\u7684\u8bdd，\u8981\u5728\u9879\u76ee\u7684\u5c5e\u6027\u4e2dc\/c++\u7684\u8bed\u8a00\u9009\u9879\u4e2d，\u5c06c\/c++\u90fd\u8bbe\u7f6e\u4e3agun\u7684\u6a21\u5f0f\u3002<\/p>\n

int sendDir(int cfd, const char* file)
\n{
\n\/\/\u8981\u5c06\u76ee\u5f55\u7684\u5185\u5bb9\u5236\u6210\u8868\u683c,\u5e76\u4e14\u6309\u7167http\u7684\u534f\u8bae\u683c\u5f0f\u53d1\u51fa
\n\/*
\n* http\u7684\u534f\u8bae\u683c\u5f0f
\n*<html>
\n*<head>
\n*<title> … <\/title>
\n*<\/head>
\n*<boby>
\n*<table>
\n*<tr> \u884c
\n*<td> \u7b2c\u4e00\u5217 <\/td>
\n*<td> \u7b2c\u4e8c\u5217 <\/td>
\n*<\/tr>
\n*<tr> \u884c
\n*………..
\n*<\/tr>
\n*
\n*<\/table>
\n*<\/boby>
\n*<\/html>
\n*\/
\nchar buf_s[4096];
\nmemset(buf_s, 0, sizeof(buf_s));<\/p>\n

\/\/\u5148\u53d1\u9001\u524d\u51e0\u90e8\u5206\u6ca1\u6709\u6587\u4ef6\u5185\u5bb9\u7684\u4e1c\u897f
\nsprintf(buf_s, "<html><head><title>%s<\/title><\/head><boby><table>", file);
\nint ret = send(cfd, buf_s, strlen(buf_s), 0);
\nif (ret == -1)
\n{
\nperror("send error!\\\\n");
\nreturn -1;
\n}<\/p>\n

\/\/\u904d\u5386\u6587\u4ef6\u5939\u5185\u5bb9，\u5c06\u5176\u5185\u5bb9\u53d1\u9001\u51fa\u53bb
\n\/\/*************\u8fd9\u91cc\u91c7\u7528scandir()\u7684\u51fd\u6570***************\u624b\u673ahtml p9\u6709\u8fd9\u4e2a\u51fd\u6570\u7684\u4ecb\u7ecd<\/p>\n

struct dirent** dir;\/\/\u8fd9\u91cc\u7684\u4e8c\u7ea7\u6307\u9488\u662f\u6307 struct dirent *[](struct dirent\u7684\u6307\u9488\u6570\u7ec4)，struct dirent \u7684\u7ed3\u6784\u4f53\u91cc\u9762\u6709\u6587\u4ef6\u540d\u7684\u5c5e\u6027
\nint num = scandir(file, &dir, NULL, alphasort);
\nif (num < 0) {
\nperror("scandir error!\\\\n");
\nreturn -1;
\n}
\nstruct stat st;
\nfor (int i = 0; i < num; i++)
\n{
\nmemset(buf_s, 0, sizeof(buf_s));
\nchar* dirname = dir[i]->d_name;
\nint ret = stat(dirname, &st);
\nif (ret < 0)
\n{
\nperror("stat error!\\\\n");
\nreturn -1;
\n}
\nsprintf(buf_s, "<tr><td>%s<\/td><td><\/td>%d<\/tr>", dirname, st.st_size);
\nret = send(cfd, buf_s, strlen(buf_s), 0);
\nif (ret < 0)
\n{
\nperror("send error!\\\\n");
\nreturn -1;
\n}
\n}<\/p>\n

\/\/\u6700\u540e\u7684\u5185\u5bb9
\nmemset(buf_s, 0, sizeof(buf_s));
\nsprintf(buf_s, "<\/table><\/body><\/html>");
\nret = send(cfd, buf_s, strlen(buf_s), 0);
\nif (ret < 0)
\n{
\nperror("send error!\\\\n");
\nreturn -1;
\n}<\/p>\n

return 0;
\n}<\/p>\n

\u5168\u90e8\u4ee3\u7801\u96c6\u5408：<\/h2>\n

main<\/p>\n

#include<stdio.h>
\n#include"ser.h"
\nint main(int argc ,char *argv[])
\n{
\n\/\/\u8fd0\u884c\u6309\u7167 a.out port path \u7684\u683c\u5f0f\u6765
\nif (argc != 3)
\n{
\nprintf("a.out port path\\\\n");
\nreturn -1;
\n}
\nunsigned short port = atoi(argv[1]);
\n\/\/\u8d44\u6e90\u76ee\u5f55\u8f6c\u79fb\u5230\u6307\u5b9a\u7684\u8def\u5f84\u4e4b\u4e0b
\nchdir(argv[2]);
\n\/\/\u7528epoll\u51fd\u6570\u6765\u8fdb\u884cio\u591a\u8def\u8f6c\u63a5
\nepollRun(port);
\nreturn 0;
\n}<\/p>\n

\u5934\u6587\u4ef6<\/p>\n

#pragma once
\n\/\/\u53d1\u9001\u76ee\u5f55\u6587\u4ef6\u7684\u5185\u5bb9
\nint sendDir(int cfd, const char* file);
\n\/\/\u53d1\u9001\u666e\u901a\u6587\u4ef6\u7684\u5185\u5bb9
\nint sendMasage(int cfd,const char* file);
\n\/\/\u5224\u65ad\u666e\u901a\u6587\u4ef6\u7684content-type
\nconst char* conductType(const char* file);
\n\/\/\u53d1\u9001\u5934\u4fe1\u606f
\nint sendHead(int cfd, int statnum, const char* state, const char* type, unsigned long length);
\n\/\/\u89e3\u6790\u8bf7\u6c42\u884c\u7684\u5185\u5bb9
\nint paraseLine(const char* requestLine,int cfd);
\n\/\/\u63a5\u53d7\u901a\u4fe1\u6587\u4ef6\u5185\u7684http\u8bf7\u6c42
\nint recvHttp(int cfd,int epfd);
\n\/\/\u6dfb\u52a0\u901a\u4fe1\u6587\u4ef6\u7684\u6587\u4ef6\u63cf\u8ff0\u7b26\u5230epoll\u7684\u8282\u70b9\u4e0a，\u5e76\u4e14\u8bbe\u7f6e\u4e3a\u8fb9\u6cbf\u975e\u963b\u585e\u7684\u6a21\u5f0f
\nint addClient(int lfd, int epfd);
\n\/\/\u6dfb\u52a0\u76d1\u542c\u6587\u4ef6\u7684\u6587\u4ef6\u63cf\u8ff0\u7b26\u5230epoll\u7684\u6839\u8282\u70b9\u4e0a\u53bb
\nint addListen(unsigned short port, int epfd);
\n\/\/epoll\u51fd\u6570
\nint epollRun(unsigned short port);<\/p>\n

\u51fd\u6570\u6587\u4ef6<\/p>\n

#include"ser.h"
\n#include<stdio.h>
\n#include<stdlib.h>
\n#include<sys\/epoll.h>
\n#include<arpa\/inet.h>
\n#include<string.h>
\n#include<errno.h>
\n#include<unistd.h>
\n#include<fcntl.h>
\n#include<sys\/stat.h>
\n#include<dirent.h><\/p>\n

int epollRun(unsigned short port)
\n{
\n\/\/\u521b\u5efaepoll\u6811
\nint epfd = epoll_create(10);
\nif (epfd == -1)
\n{
\nperror("epoll_create error!\\\\n");
\nexit(-1);
\n}<\/p>\n

\/\/\u521b\u5efa\u76d1\u542c\u6587\u4ef6\u63cf\u8ff0\u7b26，\u5c06\u76d1\u542c\u6587\u4ef6\u7684\u6587\u4ef6\u63cf\u8ff0\u7b26\u52a0\u5165\u5230epoll\u7684\u6839\u8282\u70b9\u4e0a\u53bb
\nint lfd = addListen(port, epfd);<\/p>\n

\/\/\u5faa\u73af\u68c0\u6d4b\u76d1\u542c\u6587\u4ef6\u548c\u901a\u4fe1\u6587\u4ef6\u7684\u6587\u4ef6\u63cf\u8ff0\u7b26\u7684\u8bfb\u7f13\u51b2\u533a
\nstruct epoll_event evs[1024];
\nint size = sizeof(evs)\/sizeof(evs[0]);
\nwhile (1)
\n{
\nint num = epoll_wait(epfd, evs, size, -1);
\nif (num == -1)
\n{
\nperror("epoll-wait error!\\\\n");
\nreturn -1;
\n}
\nfor (int i = 0; i < num; i++)
\n{
\n\/\/\u76d1\u542c\u6587\u4ef6\u7684\u8bfb\u7f13\u51b2\u533a\u6709\u6570\u636e
\nif (evs[i].data.fd == lfd)
\n{
\n\/\/\u4e0e\u5ba2\u6237\u7aef\u8fdb\u884c\u94fe\u63a5，\u5e76\u4e14\u5c06\u901a\u4fe1\u6587\u4ef6\u7684\u6587\u4ef6\u63cf\u8ff0\u7b26\u52a0\u5165\u5230epoll\u7684\u8282\u70b9\u4e0a，\u8bbe\u7f6e\u4e3a\u8fb9\u6cbf\u975e\u963b\u6a21\u5f0f
\naddClient(lfd, epfd);
\n}<\/p>\n

\/\/\u901a\u4fe1\u6587\u4ef6\u7684\u8bfb\u7f13\u51b2\u533a\u6709\u52a8\u9759
\nelse
\n{
\n\/\/\u8981\u8fdb\u884c\u901a\u4fe1\u4e86
\n\/\/\u5305\u542b\u89e3\u6790http\u8bf7\u6c42，\u6b64\u5904\u4ec5\u4ec5\u8003\u8651get\u7c7b\u578b（\u9759\u6001\u8d44\u6e90）\u7684\u8bf7\u6c42，\u6309\u7167http\u534f\u8bae\u8fdb\u884c\u4fe1\u606f\u7684\u53d1\u9001<\/p>\n

\/\/\u63a5\u6536http\u8bf7\u6c42
\nint cufd = evs[i].data.fd;
\nrecvHttp(cufd, epfd);<\/p>\n

}
\n}
\n}
\nreturn 0;
\n}
\nint addListen(unsigned short port,int epfd)
\n{
\n\/\/\u521b\u5efa\u76d1\u542c\u6587\u4ef6\u7684\u6587\u4ef6\u63cf\u8ff0\u7b26
\nint lfd = socket(AF_INET, SOCK_STREAM, 0);
\nif (lfd == -1)
\n{
\nperror("socket error\\\\n");
\nexit(-1);
\n}<\/p>\n

\/\/\u8bbe\u7f6e\u7aef\u53e3\u590d\u7528
\nint opt = 1;
\nint ret = setsockopt(lfd, SOL_SOCKET, SO_REUSEADDR, &opt, sizeof(opt));
\nif (ret == -1)
\n{
\nperror("setsocket error!\\\\n");
\nexit(-1);
\n}<\/p>\n

\/\/\u7ed1\u5b9a
\nstruct sockaddr_in addr;
\naddr.sin_family = AF_INET;
\naddr.sin_port = htons(port);\/\/\u7528\u6237\u81ea\u5df1\u8f93\u5165\u7aef\u53e3，\u7075\u6d3b\u4e00\u70b9
\naddr.sin_addr.s_addr = INADDR_ANY;
\nret = bind(lfd, (struct sockaddr*)&addr, sizeof(addr));
\nif (ret == -1)
\n{
\nperror("bind error\\\\n");
\nexit(-1);
\n}<\/p>\n

\/\/\u8bbe\u7f6e\u76d1\u542c
\nret = listen(lfd, 128);
\nif (ret == -1)
\n{
\nperror("listen error\\\\n");
\nexit(-1);
\n}<\/p>\n

\/\/\u5c06\u76d1\u542c\u6587\u4ef6\u63cf\u8ff0\u7b26\u52a0\u5165\u5230\u6839\u8282\u70b9\u4e0a\u53bb
\nstruct epoll_event ev;
\nev.data.fd = lfd;
\nev.events = EPOLLIN;
\nepoll_ctl(epfd, EPOLL_CTL_ADD, lfd, &ev);
\nif (ret == -1)
\n{
\nperror("epoll_ctl error\\\\n");
\nexit(-1);
\n}<\/p>\n

return lfd;
\n}
\nint addClient(int lfd, int epfd)
\n{
\n\/\/\u4e0e\u5ba2\u6237\u7aef\u8fdb\u884c\u8fde\u63a5，\u5e76\u4e14\u521b\u5efa\u901a\u4fe1\u6587\u4ef6\u7684\u6587\u4ef6\u63cf\u8ff0\u7b26
\nint cfd = accept(lfd, NULL, NULL);
\nif (cfd == -1)
\n{
\nperror("accept error!\\\\n");
\nreturn -1;
\n}<\/p>\n

\/\/\u5c06\u901a\u4fe1\u6587\u4ef6\u7684\u6587\u4ef6\u63cf\u8ff0\u7b26\u8bbe\u7f6e\u4e3a\u975e\u963b\u585e\u6a21\u5f0f
\nint flag = fcntl(cfd, F_GETFL);
\nflag |= O_NONBLOCK;
\nint ret = fcntl(cfd, F_SETFL, flag);<\/p>\n

\/\/\u5c06\u901a\u4fe1\u6587\u4ef6\u7684\u6587\u4ef6\u63cf\u8ff0\u7b26\u52a0\u5165\u5230epoll\u6811\u4e0a，\u5e76\u4e14\u8bbe\u7f6e\u4e3a\u8fb9\u6cbf\u6a21\u5f0f
\nstruct epoll_event ev;
\nev.data.fd = cfd;
\nev.events = EPOLLIN | EPOLLET;
\nret = epoll_ctl(epfd, EPOLL_CTL_ADD, cfd, &ev);
\nif (ret == -1)
\n{
\nperror("epoll_ctl error!\\\\n");
\nreturn -1;
\n}<\/p>\n

return 1;
\n}
\nint recvHttp(int cfd,int epfd)
\n{
\n\/*get\u8bf7\u6c42\u7c7b\u578b\u7684\u683c\u5f0f
\n*\u7b2c\u4e00\u884c：\u8bf7\u6c42\u884c
\n*\u7b2c\u4e00\u90e8\u5206：GET \u7b2c\u4e8c\u90e8\u5206：\u5ba2\u6237\u7aef\u8981\u8bbf\u95ee\u7684\u8d44\u6e90\u7684\u76ee\u5f55 \u7b2c\u4e09\u90e8\u5206：http\u534f\u8bae\u7684\u811a\u672c
\n*\u7b2c\u4e8c\u5230N\u884c：\u8bf7\u6c42\u5934
\n* \u5ba2\u6237\u7aef\u7684ip\u5730\u5740\u548c\u7aef\u53e3\u53f7
\n*\u5269\u4e0b\u6765\u5168\u662f\u7a7a\u884c
\n*\/<\/p>\n

\/\/\u6240\u4ee5\u4e0d\u7528\u5c06\u5168\u90e8\u7684\u8bf7\u6c42\u4fe1\u606f\u90fd\u4fdd\u7559\u4e0b\u6765，\u53ea\u9700\u5c06\u8bf7\u6c42\u4fe1\u606f\u7684\u7684\u7b2c\u4e00\u884c\u4fdd\u5b58\u4e0b\u6765\u5373\u53ef
\n\/\/http\u534f\u8bae\u662f\u901a\u8fc7\/r\/n\u7684\u65b9\u5f0f\u8fdb\u884c\u6362\u884c\u7684<\/p>\n

char buf_r[1024];\/\/\u6bcf\u6b21\u63a5\u53d71k\u7684\u6570\u636e\u91cf
\nmemset(buf_r, 0, sizeof(buf_r));
\nchar buf[4096];\/\/\u8bfb\u51fa\u6765\u7684\u4fe1\u606f\u7684\u7f13\u51b2\u533a
\nmemset(buf, 0, sizeof(buf));
\nint len = 0;\/\/\u6bcf\u6b21\u63a5\u53d7\u7684\u6570\u636e\u91cf
\nint total = 0;\/\/buf\u4e2d\u5df2\u7ecf\u7f13\u5b58\u7684\u6570\u636e\u91cf
\nwhile ((len = recv(cfd, buf_r, sizeof(buf_r), 0)) > 0)
\n{
\nif (total + len <= sizeof(buf))
\n{
\nmemcpy(buf+total, buf_r, len);\/\/\u7b2c\u4e00\u4e2a\u53c2\u6570\u8868\u793a\u5411\u53f3\u504f\u79fbtotal\u4e2a\u5b57\u8282\u6570
\ntotal += len;
\n}
\n}<\/p>\n

\/\/\u6587\u4ef6\u7684\u63cf\u8ff0\u7b26\u662f\u975e\u963b\u585e\u7684，\u6240\u4ee5\u8fd9\u79cd\u60c5\u51b5\u662f\u6587\u4ef6\u63cf\u8ff0\u7b26\u7684\u90fd\u7f13\u51b2\u533a\u4e2d\u7684\u5185\u5bb9\u8bfb\u5b8c\u4e86
\nif (len == -1 && errno == EAGAIN)
\n{
\n\/\/\u5c06\u8bf7\u6c42\u884c\u7684\u5185\u5bb9\u62ff\u51fa\u6765
\nchar* pt = strstr(buf, "\\\\r\\\\n");
\n\/\/\u4e24\u4e2a\u6307\u9488\u76f8\u51cf\u5c31\u80fd\u5f97\u5230\u8d77\u59cb\u4f4d\u7f6e\u548c\u672b\u5c3e\u4f4d\u7f6e\u4e4b\u95f4\u7684\u5143\u7d20\u504f\u79fb\u91cf
\nint reqLine = pt – buf;
\n\/\/ \/0 \u8868\u793a\u622a\u65ad
\nbuf[reqLine] = "\/0";<\/p>\n

\/\/\u5206\u6790buf\u4e2d\u7684http\u8bf7\u6c42
\nparaseLine(buf, cfd);
\n}<\/p>\n

\/\/\u5ba2\u6237\u7aef\u65ad\u5f00\u4e86\u8fde\u63a5,\u5c06\u6b64\u901a\u4fe1\u6587\u4ef6\u7684\u6587\u4ef6\u63cf\u8ff0\u7b26\u4eceepoll\u6811\u4e0a\u79fb\u51fa\u53bb
\nelse if (len == 0)
\n{
\nprintf("\u5ba2\u6237\u7aef\u4e22\u5931\\\\n");
\nstruct epoll_event ev;
\nev.events = EPOLLIN;
\nev.data.fd = cfd;
\nint ret = epoll_ctl(epfd, EPOLL_CTL_DEL, cfd,&ev);
\nif (ret == -1)
\n{
\nperror("epoll_ctl error!\\\\n");
\nreturn -1;
\n}
\nreturn (-1);
\n}<\/p>\n

\/\/\u9519\u8bef
\nelse
\n{
\nperror("recv error!\\\\n");
\nreturn (-1);
\n}
\nreturn 0;
\n}
\nint paraseLine(const char* requestLine,int cfd)
\n{
\n\/\/\u8bf7\u6c42\u884c\u5185\u5bb9 GET \/hello\/world\/ http\/1.1
\nchar method[6];
\nchar fileName[1024];
\n\/\/\u6b63\u5219\u8868\u8fbe\u5f0f
\nsscanf(requestLine, "[^ ] [^ ]", method, fileName);<\/p>\n

\/\/\u5224\u65ad\u662f\u4e0d\u662f\u7528get \u7684\u65b9\u5f0f\u6765\u8bf7\u6c42\u7684
\n\/\/\u4e0d\u662fget
\nif (memcmp(method, "GET", strlen(method))!= 0)
\n{
\nprintf("\u5ba2\u6237\u7aef\u8bf7\u6c42\u4e0d\u5408\u6cd5\\\\n");
\nreturn -1;
\n}
\n\/\/\u662fget
\nelse
\n{
\n\/\/\u662f\u4ee5\u670d\u52a1\u5668\u7684\u8d44\u6e90\u6839\u76ee\u5f55\u4f5c\u4e3a\u603b\u7684\u6839\u76ee\u5f55\u6765\u8bf4\u7684
\n\/\/\u5c06\u8f93\u5165\u7684\u8def\u5f84\u540d\u5b57\u8f6c\u6362\u6210\u7edd\u5bf9\u6216\u8005\u76f8\u5bf9\u8def\u5f84
\n\/*
\n\u53ef\u80fd\u6709\u8fd9\u51e0\u79cd\u65b9\u5f0f
\n1.\/ ==> \u670d\u52a1\u5668\u9884\u8bbe\u7684\u8d44\u6e90\u6839\u76ee\u5f55
\n2.\/hello\/word\/… ==> hello\/word\/…（\u56e0\u4e3a\u5de5\u4f5c\u8def\u5f84\u5df2\u7ecf\u5728\u8d44\u6e90\u76ee\u5f55\u4e4b\u4e0b，\u6240\u4ee5\u5176\u7edd\u5bf9\u8def\u5f84\u53ea\u9700\u5c06\u524d\u9762\u7684\u6839\u76ee\u5f55\u53bb\u6389\u5373\u53ef）
\n*\/<\/p>\n

\/\/\u786e\u5b9a\u6587\u4ef6\u7684\u7edd\u5bf9\u8def\u5f84
\nchar* file = NULL ;<\/p>\n

\/\/1.
\nif (memcmp(fileName, "\/", strlen(fileName)) == 0)
\n{
\nfile = ".\/";
\n}<\/p>\n

\/\/2
\nelse
\n{
\nfile = fileName+ 1;\/\/\u6307\u9488\u53f3\u79fb
\n}<\/p>\n

\/\/\u786e\u5b9a\u6587\u4ef6\u7684\u7c7b\u578b 1.\u6587\u4ef6 2.\u76ee\u5f55<\/p>\n

\/\/1.
\nstruct stat st;
\nint ret = stat(file, &st);
\nunsigned long length;
\n\/\/\u51fd\u6570\u8c03\u7528\u5931\u8d25，\u6ca1\u6709\u8fd9\u4e2a\u6587\u4ef6
\nif (ret == -1)
\n{
\nfile = "\/home\/zx\/text\/20201103174810732538.webp";
\nstat(file, &st);
\nlength = st.st_size;
\n\/\/\u53d1\u9001\u5934\u4fe1\u606f
\nsendHead(cfd, 200, "OK", conductType(file), length);<\/p>\n

\/\/\u8fd4\u56de404\u7684\u56fe\u7247
\nsendMasage(cfd, file);<\/p>\n

}
\n\/\/\u6210\u529f，\u5224\u65ad\u662f\u666e\u901a\u6587\u4ef6\u8fd8\u662f\u76ee\u5f55
\nelse
\n{
\n length = st.st_size;
\n\/\/\u76ee\u5f55
\nif (S_ISDIR(st.st_mode))
\n{
\n\/\/\u53d1\u9001\u5934\u4fe1\u606f,\u662f\u4ee5.html\u7684（\u8868\u683c）\u683c\u5f0f\u6765\u53d1\u9001\u6587\u4ef6\u7684
\nsendHead(cfd, 200, "OK", conductType(".html"), length);<\/p>\n

\/\/\u53d1\u9001\u76ee\u5f55
\nsendDir(cfd, file);<\/p>\n

}
\n\/\/\u666e\u901a\u6587\u4ef6
\nelse
\n{
\n\/\/\u53d1\u9001\u5934\u4fe1\u606f
\nsendHead(cfd, 200, "OK", conductType(file), length);<\/p>\n

\/\/\u53d1\u9001\u6587\u4ef6\u5185\u5bb9
\nsendMasage(cfd, file);
\n}
\n}<\/p>\n

}
\nreturn 0;
\n}
\nint sendHead(int cfd,int statnum,const char *state,const char *type,unsigned long length)
\n{
\n\/\/\u72b6\u6001\u884c (http \u534f\u8bae\u7248\u672c，\u72b6\u6001\u7801，\u5bf9\u72b6\u6001\u7801\u7684\u63cf\u8ff0）
\n\/\/\u54cd\u5e94\u5934 （content-type content-lenth）
\n\/\/\u56e0\u4e3a\u4f7f\u7528\u7684\u662ftcp\u4f20\u8f93\u534f\u8bae，\u6240\u4ee5\u4e0d\u7528\u4e00\u6b21\u5168\u90e8\u90fd\u53d1
\nchar buf_s[4096];
\nmemset(buf_s, 0, sizeof(buf_s));<\/p>\n

\/\/\u72b6\u6001\u884c (http \u534f\u8bae\u7248\u672c，\u72b6\u6001\u7801，\u5bf9\u72b6\u6001\u7801\u7684\u63cf\u8ff0）
\nsprintf(buf_s, "HTTP\/1.1 %d %s\\\\r\\\\n", statnum, state);<\/p>\n

\/\/\u54cd\u5e94\u5934 （content-type content-lenth）
\nsprintf(buf_s, "Content-Type:%s\\\\r\\\\n", type);
\nsprintf(buf_s, "Content-Length:%d\\\\r\\\\n", length);<\/p>\n

\/\/\u7a7a\u884c
\nsprintf(buf_s, "\\\\r\\\\n");<\/p>\n

\/\/\u53d1\u9001
\nint num = send(cfd, buf_s, sizeof(buf_s), 0);
\nif (num == -1)
\n{
\nperror("send error!\\\\n");
\nreturn -1;<\/p>\n

}<\/p>\n

return 0;
\n}
\nconst char* conductType(const char* file)
\n{
\nconst char* dot = strrchr(file, ".");
\nif (dot == NULL)
\n{
\nreturn "text\/plain; charset=utf-8";
\n}
\nif (strcmp(dot, ".html") == 0 || strcmp(dot, ".htm") == 0)
\n{
\nreturn "text\/html;charset=utf-8";
\n}
\nif (strcmp(dot, ".jpg") == 0 || strcmp(dot, ".jpeg") == 0)
\n{
\nreturn "image\/jpeg";
\n}
\nif (strcmp(dot, ".gif") == 0)
\n{
\nreturn "image\/gif";
\n}
\nif (strcmp(dot, ".png") == 0)
\n{
\nreturn "image\/png";
\n}
\nif (strcmp(dot, ".css") == 0)
\n{
\nreturn "text\/css";
\n}
\nif (strcmp(dot, ".au") == 0)
\n{
\nreturn "audio\/basic";
\n}
\nif (strcmp(dot, ".wav") == 0)
\n{
\nreturn "audio\/wav";
\n}
\nif (strcmp(dot, ".avi") == 0)
\n{
\nreturn "video\/avi";
\n}
\nif (strcmp(dot, ".mov") == 0 || strcmp(dot, ".qt") == 0)
\n{
\nreturn "video\/quicktime";
\n}
\nif (strcmp(dot, ".mp3") == 0)
\n{
\nreturn "audio\/mp3";
\n}
\nif (strcmp(dot, ".webp") == 0)
\n{
\nreturn "image\/webp";
\n}
\nreturn "text\/plain; charset=utf-8";
\n}
\nint sendMasage(int cfd, const char* file)
\n{
\n\/\/\u6253\u5f00\u8bf7\u6c42\u7684\u6587\u4ef6
\nint fd = open(file, O_RDONLY);
\nif (fd == -1)
\n{
\nperror("open error!\\\\n");
\nreturn -1;
\n}<\/p>\n

\/\/\u5c06\u8bf7\u6c42\u7684\u6587\u4ef6\u8bfb\u5230buf\u7f13\u5b58\u4e4b\u4e2d
\nchar buf[4096];
\nmemset(buf, 0, sizeof(buf));
\nwhile (1)
\n{
\nint len = read(cfd, buf, sizeof(buf));
\nif (len < 0)
\n{
\nperror("read error\\\\n");
\nreturn -1;
\n}
\n\/\/\u6309\u7167http\u534f\u8bae\u7684\u683c\u5f0f\u5c06buf\u7684\u5185\u5bb9\u53d1\u9001\u51fa\u53bb
\nelse if (len > 0)
\n{
\nsend(cfd, buf, strlen(buf), 0);
\n}
\n\/\/\u6587\u4ef6\u8bfb\u5b8c\u4e86
\nelse
\n{
\nbreak;
\n}
\n}
\nreturn 0;
\n}
\nint sendDir(int cfd, const char* file)
\n{
\n\/\/\u8981\u5c06\u76ee\u5f55\u7684\u5185\u5bb9\u5236\u6210\u8868\u683c,\u5e76\u4e14\u6309\u7167http\u7684\u534f\u8bae\u683c\u5f0f\u53d1\u51fa
\n\/*
\n* http\u7684\u534f\u8bae\u683c\u5f0f
\n*<html>
\n*<head>
\n*<title> … <\/title>
\n*<\/head>
\n*<boby>
\n*<table>
\n*<tr> \u884c
\n*<td> \u7b2c\u4e00\u5217 <\/td>
\n*<td> \u7b2c\u4e8c\u5217 <\/td>
\n*<\/tr>
\n*<tr> \u884c
\n*………..
\n*<\/tr>
\n*
\n*<\/table>
\n*<\/boby>
\n*<\/html>
\n*\/
\nchar buf_s[4096];
\nmemset(buf_s, 0, sizeof(buf_s));<\/p>\n

\/\/\u5148\u53d1\u9001\u524d\u51e0\u90e8\u5206\u6ca1\u6709\u6587\u4ef6\u5185\u5bb9\u7684\u4e1c\u897f
\nsprintf(buf_s, "<html><head><title>%s<\/title><\/head><boby><table>", file);
\nint ret = send(cfd, buf_s, strlen(buf_s), 0);
\nif (ret == -1)
\n{
\nperror("send error!\\\\n");
\nreturn -1;
\n}<\/p>\n

\/\/\u904d\u5386\u6587\u4ef6\u5939\u5185\u5bb9，\u5c06\u5176\u5185\u5bb9\u53d1\u9001\u51fa\u53bb
\n\/\/*************\u8fd9\u91cc\u91c7\u7528scandir()\u7684\u51fd\u6570***************\u624b\u673ahtml p9\u6709\u8fd9\u4e2a\u51fd\u6570\u7684\u4ecb\u7ecd<\/p>\n

struct dirent** dir;\/\/\u8fd9\u91cc\u7684\u4e8c\u7ea7\u6307\u9488\u662f\u6307 struct dirent *[](struct dirent\u7684\u6307\u9488\u6570\u7ec4)，struct dirent \u7684\u7ed3\u6784\u4f53\u91cc\u9762\u6709\u6587\u4ef6\u540d\u7684\u5c5e\u6027
\nint num = scandir(file, &dir, NULL, alphasort);
\nif (num < 0) {
\nperror("scandir error!\\\\n");
\nreturn -1;
\n}
\nstruct stat st;
\nfor (int i = 0; i < num; i++)
\n{
\nmemset(buf_s, 0, sizeof(buf_s));
\nchar* dirname = dir[i]->d_name;
\nint ret = stat(dirname, &st);
\nif (ret < 0)
\n{
\nperror("stat error!\\\\n");
\nreturn -1;
\n}
\nsprintf(buf_s, "<tr><td>%s<\/td><td><\/td>%d<\/tr>", dirname, st.st_size);
\nret = send(cfd, buf_s, strlen(buf_s), 0);
\nif (ret < 0)
\n{
\nperror("send error!\\\\n");
\nreturn -1;
\n}
\n}<\/p>\n

\/\/\u6700\u540e\u7684\u5185\u5bb9
\nmemset(buf_s, 0, sizeof(buf_s));
\nsprintf(buf_s, "<\/table><\/body><\/html>");
\nret = send(cfd, buf_s, strlen(buf_s), 0);
\nif (ret < 0)
\n{
\nperror("send error!\\\\n");
\nreturn -1;
\n}<\/p>\n

return 0;
\n}<\/p>\n","protected":false},"excerpt":{"rendered":"

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