{"id":47440,"date":"2025-07-30T07:51:53","date_gmt":"2025-07-29T23:51:53","guid":{"rendered":"https:\/\/www.wsisp.com\/helps\/47440.html"},"modified":"2025-07-30T07:51:53","modified_gmt":"2025-07-29T23:51:53","slug":"%e7%bd%91%e7%bb%9c%e7%bc%96%e7%a8%8b%e7%bb%83%e6%89%8b-%e8%bd%bb%e9%87%8f%e5%8c%96ftp%e6%96%87%e4%bb%b6%e4%bc%a0%e8%be%93%e6%9c%8d%e5%8a%a1%e5%99%a8","status":"publish","type":"post","link":"https:\/\/www.wsisp.com\/helps\/47440.html","title":{"rendered":"\u7f51\u7edc\u7f16\u7a0b\u7ec3\u624b-\u8f7b\u91cf\u5316FTP\u6587\u4ef6\u4f20\u8f93\u670d\u52a1\u5668"},"content":{"rendered":"

\u524d\u8a00<\/h2>\n

\u6700\u8fd1\u5728\u5b66\u4e60\u7f51\u7edc\u7f16\u7a0b，\u6b64\u9879\u76ee\u9002\u5408\u65b0\u624b\u5c0f\u767d\u7ec3\u624b，\u719f\u6089tcp\/ip，\u5957\u63a5\u5b57<\/span>\u7f16\u7a0b\u3002（\u57fa\u4e8eC\u8bed\u8a00<\/span>）<\/p>\n

\u4e00\u3001\u9879\u76ee\u6982\u8ff0<\/span><\/h2>\n

\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u672c\u9879\u76ee\u5b9e\u73b0\u4e86\u4e00\u4e2a\u8f7b\u91cf\u7ea7\u7684 FTP（File Transfer Protocol）\u670d\u52a1\u5668\u4e0e\u5ba2\u6237\u7aef\u7cfb\u7edf，\u501f\u52a9\u81ea\u5b9a\u4e49\u534f\u8bae\u8fbe\u6210\u4e86\u6587\u4ef6\u5217\u8868\u67e5\u770b\u3001\u6587\u4ef6\u83b7\u53d6\u548c\u6587\u4ef6\u4e0a\u4f20\u7b49\u57fa\u7840\u6587\u4ef6\u4f20\u8f93\u529f\u80fd\u3002\u901a\u8fc7\u591a\u7ebf\u7a0b\u6280\u672f，\u670d\u52a1\u5668\u80fd\u591f\u540c\u65f6\u5904\u7406\u591a\u4e2a\u5ba2\u6237\u7aef\u8bf7\u6c42，\u786e\u4fdd\u4e86\u7cfb\u7edf\u7684\u5e76\u53d1\u5904\u7406\u80fd\u529b\u3002<\/p>\n

\u4e8c\u3001\u9879\u76ee\u529f\u80fd<\/h2>\n

\u670d\u52a1\u5668\u7aef<\/h3>\n

1.\u591a\u5ba2\u6237\u7aef\u5904\u7406：\u91c7\u7528\u591a\u7ebf\u7a0b\u6280\u672f，\u53ef\u540c\u65f6\u5904\u7406\u591a\u4e2a\u5ba2\u6237\u7aef\u7684\u8fde\u63a5\u548c\u8bf7\u6c42<\/p>\n

2.\u6307\u4ee4\u5904\u7406：\u652f\u6301 LIST\u3001GET\u3001PUSH<\/span>\u548c<\/span> QUIT <\/span>\u6307\u4ee4，\u80fd\u5b8c\u6210\u6587\u4ef6\u5217\u8868\u67e5\u770b\u3001\u6587\u4ef6\u4e0b\u8f7d\u3001\u6587\u4ef6\u4e0a\u4f20\u548c\u65ad\u5f00\u8fde\u63a5\u64cd\u4f5c\u3002<\/p>\n

3.\u9519\u8bef\u5904\u7406：\u5bf9\u6587\u4ef6\u64cd\u4f5c（\u5982\u6253\u5f00\u3001\u521b\u5efa\u3001\u8bfb\u53d6\u7b49）\u5931\u8d25\u60c5\u51b5\u8fdb\u884c\u5904\u7406，\u8bb0\u5f55\u9519\u8bef\u4fe1\u606f\u5e76\u5411\u5ba2\u6237\u7aef\u8fd4\u56de\u76f8\u5e94\u72b6\u6001\u3002<\/p>\n

\u5ba2\u6237\u7aef<\/h3>\n

1.\u7528\u6237\u4ea4\u4e92：\u63d0\u4f9b\u547d\u4ee4\u884c\u754c\u9762，\u7528\u6237\u53ef\u8f93\u5165 list\u3001get\u3001push\u3001quit \u548c cls \u6307\u4ee4\u3002<\/p>\n

2.\u6307\u4ee4\u53d1\u9001\u4e0e\u54cd\u5e94\u5904\u7406：\u80fd\u53d1\u9001\u6307\u4ee4\u5230\u670d\u52a1\u5668，\u5e76\u5904\u7406\u670d\u52a1\u5668\u8fd4\u56de\u7684\u54cd\u5e94，\u5982\u663e\u793a\u6587\u4ef6\u5217\u8868\u3001\u4fdd\u5b58\u4e0b\u8f7d\u6587\u4ef6\u7b49\u3002<\/p>\n

3.\u9519\u8bef\u5904\u7406：\u5728\u6587\u4ef6\u64cd\u4f5c（\u5982\u6253\u5f00\u3001\u4fdd\u5b58\u7b49）\u5931\u8d25\u6216\u670d\u52a1\u5668\u8fd4\u56depush\u9519\u8bef\u6d88\u606f\u65f6，\u663e\u793a\u76f8\u5e94\u9519\u8bef\u4fe1\u606f<\/p>\n

\u4e09\u3001\u81ea\u5b9a\u4e49\u534f\u8bae<\/h2>\n

\u6307\u4ee4\u7c7b\u578b<\/h3>\n\n\n\n\n\n\n\n
\u6307\u4ee4\u7c7b\u578b<\/td>\n\u8bf4\u660e<\/td>\n<\/tr>\n
LIST<\/td>\n\u5217\u51fa\u670d\u52a1\u5668\u6307\u5b9a\u76ee\u5f55\u4e0b\u7684\u6587\u4ef6\u5217\u8868<\/td>\n<\/tr>\n
GET<\/td>\n\u4ece\u670d\u52a1\u5668\u83b7\u53d6\u6307\u5b9a\u7684\u6587\u4ef6<\/td>\n<\/tr>\n
PUSH<\/td>\n\u5411\u670d\u52a1\u5668\u4e0a\u4f20\u6307\u5b9a\u6587\u4ef6<\/td>\n<\/tr>\n
QUIT\u00a0 \u00a0 \u00a0 \u00a0<\/td>\n\u5173\u95ed\u4e8e\u670d\u52a1\u5668\u7684\u8fde\u63a5<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

\u6570\u636e\u5305\u7ed3\u6784<\/h3>\n

\u5206\u4e3a\u8bf7\u6c42\u6570\u636e\u5305 \u548c \u54cd\u5e94\u6570\u636e\u5305 \u4e24\u4e2a\u5927\u7c7b\u3002<\/p>\n

\u6bcf\u4e2a\u6570\u636e\u5305\u4e2d\u5305\u542b\u6570\u636e\u5305\u5934<\/p>\n

\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0RequestHeader：\u5305\u542b `cmd`（\u8bf7\u6c42\u6307\u4ee4）\u548c `body_size`（\u8bf7\u6c42\u5305\u4f53\u5927\u5c0f）\u4e24\u4e2a\u5b57\u6bb5\u3002<\/p>\n

\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0ResponseHeader：\u5305\u542b status<\/font>（\u54cd\u5e94\u72b6\u6001）\u548c body_size（\u54cd\u5e94\u5305\u4f53\u5927\u5c0f）\u4e24\u4e2a\u5b57\u6bb5\u3002<\/p>\n

\/\/\u81ea\u5b9a\u4e49\u6570\u636e\u6700\u5927\u957f\u5ea6
\n#define MSG_SIZE 1024<\/p>\n

\/\/ \u8bf7\u6c42\u5305\u5934\u7ed3\u6784\u4f53，\u5305\u542b\u8bf7\u6c42\u7684\u6307\u4ee4\u548c\u5305\u4f53\u5927\u5c0f
\ntypedef struct RequestHeader
\n{
\n Command cmd; \/\/ \u8bf7\u6c42\u6307\u4ee4，\u4f7f\u7528\u524d\u9762\u5b9a\u4e49\u7684Command\u679a\u4e3e\u7c7b\u578b
\n uint16 body_size; \/\/ \u8bf7\u6c42\u5305\u4f53\u5927\u5c0f，\u4f7f\u7528\u65e0\u7b26\u53f7\u77ed\u6574\u578b
\n} RequestHeader;<\/p>\n

\/\/ \u54cd\u5e94\u5305\u5934\u7ed3\u6784\u4f53，\u5305\u542b\u54cd\u5e94\u7684\u72b6\u6001\u548c\u5305\u4f53\u5927\u5c0f
\ntypedef struct ResponseHeader
\n{
\n Status status; \/\/ \u54cd\u5e94\u72b6\u6001，\u4f7f\u7528\u524d\u9762\u5b9a\u4e49\u7684Status\u679a\u4e3e\u7c7b\u578b
\n uint16 body_size; \/\/ \u54cd\u5e94\u5305\u4f53\u5927\u5c0f，\u4f7f\u7528\u65e0\u7b26\u53f7\u77ed\u6574\u578b
\n} ResponseHeader;<\/p>\n

\/\/ \u8bf7\u6c42\u6570\u636e\u5305\u7ed3\u6784\u4f53，\u5305\u542b\u8bf7\u6c42\u5305\u5934\u548c\u8bf7\u6c42\u5305\u4f53
\ntypedef struct RequestPacket
\n{
\n RequestHeader header; \/\/ \u8bf7\u6c42\u5305\u5934
\n char body[MSG_SIZE]; \/\/ \u8bf7\u6c42\u5305\u4f53，\u6700\u5927\u957f\u5ea6\u4e3aMSG_SIZE
\n} RequestPacket;<\/p>\n

\/\/ \u54cd\u5e94\u6570\u636e\u5305\u7ed3\u6784\u4f53，\u5305\u542b\u54cd\u5e94\u5305\u5934\u548c\u54cd\u5e94\u5305\u4f53
\ntypedef struct ResponsePacket
\n{
\n ResponseHeader header; \/\/ \u54cd\u5e94\u5305\u5934
\n char body[MSG_SIZE]; \/\/ \u54cd\u5e94\u5305\u4f53，\u6700\u5927\u957f\u5ea6\u4e3aMSG_SIZE
\n} ResponsePacket;<\/p>\n

\u56db\u3001\u4ee3\u7801\u5b9e\u73b0<\/h2>\n

\u670d\u52a1\u5668\u7aef<\/h3>\n

\u00a0 \u00a0 \u00a0 \u00a0 \u91c7\u7528\u591a\u7ebf\u7a0b\u7684\u65b9\u5f0f\u5b9e\u73b0，\u6839\u636e\u5ba2\u6237\u7aef\u53d1\u9001\u7684\u8bf7\u6c42\u6570\u636e\u5305\u4e2d\u7684cmd\u6307\u4ee4，\u4ece\u800c\u6267\u884c\u76f8\u5173\u7684\u64cd\u4f5c<\/p>\n

myftp_server.c<\/p>\n

#include "myftp_server.h"<\/p>\n

static int sockfd=-1;
\nstatic int confd=-1;<\/p>\n

int main(int argc, char const *argv[])
\n{
\n \/\/\u63d0\u793a\u8f93\u5165\u53c2\u6570
\n if (argc != 2)
\n {
\n fprintf(stderr, "Usage: %s <server-port> \\\\n", argv[0]);
\n return 1;
\n }<\/p>\n

init_server(atoi(argv[1]));<\/p>\n

server_run();<\/p>\n

close(sockfd);
\n close(confd);
\n return 0;
\n}<\/p>\n

\/\/\u521d\u59cb\u5316\u670d\u52a1\u5668
\nvoid init_server(uint16 port)
\n{
\n \/\/\u521b\u5efa\u901a\u4fe1\u8282\u70b9,\u6d41\u5f0f\u5957\u63a5\u5b57
\n sockfd = socket(AF_INET,SOCK_STREAM,0);
\n if(sockfd == -1)
\n error_exit("socket error");<\/p>\n

\/\/\u8bbe\u7f6e\u5957\u63a5\u5b57\u7684\u9009\u9879
\n int opt_val = 1;\/\/\u8868\u793a\u5f00\u542f\u5730\u5740\u91cd\u7528\u529f\u80fd
\n int r = setsockopt(sockfd,SOL_SOCKET,SO_REUSEADDR,&opt_val,4);
\n if(r == -1)
\n error_exit("set socketopt error");<\/p>\n

\/\/printf("socketopt val:%d\\\\n",opt_val);<\/p>\n

\/\/\u83b7\u53d6\u5957\u63a5\u5b57\u9009\u9879\u7684\u503c
\n int sockval = -1;
\n int len = sizeof(int);
\n r = getsockopt(sockfd,SOL_SOCKET,SO_RCVBUF,&sockval,&len);
\n if(r == -1)
\n error_exit("getsockopt error");
\n \/\/printf("socketopt len:%d\\\\n",sockval);<\/p>\n

\/\/\u7ed1\u5b9a\u901a\u4fe1\u5730\u5740
\n struct sockaddr_in addr;
\n bzero(&addr,sizeof(addr)); \/\/\u628a\u7ed3\u6784\u6e05\u96f6
\n addr.sin_family = AF_INET; \/\/\u8868\u793a\u4f7f\u7528IPV4
\n addr.sin_port = htons(port); \/\/\u8bbe\u7f6e\u7aef\u53e3\u53f7，\u7f51\u7edc\u5b57\u8282\u5e8f atoi(argv[1])
\n addr.sin_addr.s_addr = INADDR_ANY;<\/p>\n

r = bind(sockfd,(struct sockaddr*)&addr,sizeof(addr));
\n if(r == -1)
\n error_exit("bind error");<\/p>\n

\/\/\u76d1\u542c，\u76d1\u542c\u5b8c\u6210\u540e，sockfd\u79f0\u4e3a\u76d1\u542c\u5957\u63a5\u5b57，\u53ea\u80fd\u7528\u6765\u63a5\u6536\u8fde\u63a5，\u4e0d\u80fd\u7528\u6765\u901a\u4fe1
\n r = listen(sockfd,10);
\n if(r == -1)
\n error_exit("listen error");<\/p>\n

printf("Server Init Success\\\\n");
\n}<\/p>\n

\/\/\u670d\u52a1\u5668\u8fde\u63a5\u64cd\u4f5c
\nvoid server_run(void)
\n{
\n \/\/\u521d\u59cb\u5316\u5ba2\u6237\u673a\u4fe1\u606f
\n struct sockaddr_in caddr;
\n bzero(&caddr,sizeof(caddr));
\n socklen_t len = sizeof(caddr);<\/p>\n

while (1)
\n {
\n \/\/\u63a5\u53d7\u8fde\u63a5，\u5982\u679c\u6ca1\u6709\u8fde\u63a5，\u8be5\u51fd\u6570\u4f1a\u963b\u585e，\u5982\u679c\u6709，\u5219\u8fd4\u56de\u4e00\u4e2a\u8fde\u63a5\u5957\u63a5\u5b57，\u540e\u7eed\u7684\u6570\u636e\u901a\u4fe1\u4f7f\u7528\u8fd9\u4e2a\u8fde\u63a5\u5957\u63a5\u5b57
\n confd = accept(sockfd,(struct sockaddr *)&caddr,&len);
\n if(confd == -1)
\n error_exit("connect error");
\n \/\/\u4e0a\u7ebf\u63d0\u793a
\n printf("client:%s on line\\\\n",inet_ntoa(caddr.sin_addr));<\/p>\n

\/\/\u521b\u5efa\u7ebf\u7a0b\u8fdb\u884c\u5904\u7406
\n pthread_t tid;
\n int r = pthread_create(&tid,NULL,handle_connection,(void *)&confd);
\n if(r != 0)
\n error_exit("create pthread error");
\n }
\n}<\/p>\n

\/\/\u5904\u7406\u8fde\u63a5 \u5224\u5b9a\u547d\u4ee4
\nvoid *handle_connection(void * arg)
\n{
\n \/\/\u8bbe\u7f6e\u7ebf\u7a0b\u5206\u79bb\u5c5e\u6027
\n pthread_detach(pthread_self());<\/p>\n

int confd = *(int*)arg;<\/p>\n

\/\/\u63a5\u6536\u8bf7\u6c42\u6570\u636e\u5305
\n RequestPacket packet;<\/p>\n

\/\/\u5efa\u7acb\u8fde\u63a5 \u6301\u7eed\u8fd0\u884c
\n while (1)
\n {
\n int r = myread(confd,(char *)&packet,sizeof(packet));
\n if(r == 0)
\n {
\n \/\/\u4e0b\u7ebf\u63d0\u793a
\n struct sockaddr_in caddr;
\n bzero(&caddr,sizeof(caddr));
\n socklen_t len = sizeof(caddr);
\n getpeername(confd,(struct sockaddr *)&caddr,&len);
\n printf("client:%s off line\\\\n",inet_ntoa(caddr.sin_addr));
\n close(confd);
\n pthread_exit(NULL);
\n }
\n printf("r = %d\\\\n",r);
\n printf("cmd = %d\\\\n",packet.header.cmd);
\n printf("body %s\\\\n",packet.body);
\n printf("body size %d \\\\n",packet.header.body_size);<\/p>\n

switch (packet.header.cmd)
\n {
\n case LIST:
\n handle_LIST(packet);
\n break;
\n case GET:
\n handle_GET(packet);
\n break;
\n case PUSH:
\n handle_PUSH();
\n break;
\n case QUIT:
\n handle_QUIT(packet);
\n break;
\n default:
\n break;
\n }
\n bzero(&packet,sizeof(packet));
\n }
\n}<\/p>\n

void handle_LIST(RequestPacket packet)
\n{
\n char path[100] ={};
\n memcpy(path,packet.body,ntohs(packet.header.body_size));
\n \/\/ \u5904\u7406ls\u6307\u4ee4：\u6253\u5f00\u670d\u52a1\u76ee\u5f55，\u8bfb\u76ee\u5f55，\u628a\u8bfb\u5230\u7684\u6587\u4ef6\u540d\u53d1\u9001\u7ed9\u5ba2\u6237\u7aef
\n DIR *pdir = opendir((const char *)packet.body);
\n if (pdir == NULL)
\n error_exit("open service dir error");<\/p>\n

struct dirent *pent;
\n \/\/ \u6784\u5efa\u6d88\u606f\u5305
\n ResponsePacket res_packet;
\n res_packet.header.status = SUCCESS;
\n while (1)
\n {
\n errno = 0;
\n pent = readdir(pdir);
\n if (pent == NULL)
\n {
\n if (errno != 0)
\n perror("readdir");
\n break;
\n }
\n if (strcmp(pent->d_name, ".") == 0 || strcmp(pent->d_name, "..") == 0)
\n continue;<\/p>\n

res_packet.header.body_size = htons(strlen(pent->d_name));
\n strcpy(res_packet.body, pent->d_name);
\n write(confd, &res_packet, sizeof(res_packet.header) + ntohs(res_packet.header.body_size));
\n }
\n res_packet.header.body_size = 0;
\n write(confd, &res_packet, sizeof(res_packet.header) + res_packet.header.body_size);<\/p>\n

closedir(pdir);
\n}<\/p>\n

void handle_GET(RequestPacket packet)
\n{
\n char path[100] = {};
\n memcpy(path, packet.body, ntohs(packet.header.body_size));<\/p>\n

\/\/ \u6253\u5f00\u6587\u4ef6
\n int fd = open(path, O_RDONLY);
\n if (fd == -1) {
\n error_exit("server open file error");
\n \/\/ \u53d1\u9001\u9519\u8bef\u54cd\u5e94\u7ed9\u5ba2\u6237\u7aef
\n ResponsePacket error_packet;
\n error_packet.header.status = ERROR;
\n error_packet.header.body_size = htons(0);
\n write(confd, &error_packet, sizeof(error_packet.header));
\n return;
\n }<\/p>\n

while (1)
\n {
\n ResponsePacket res_packet;
\n memset(&res_packet, 0, sizeof(res_packet));
\n int r = read(fd, res_packet.body, sizeof(res_packet.body));
\n if (r == -1) {
\n error_exit("server read file error");
\n break;
\n }
\n if (r == 0)
\n break;<\/p>\n

res_packet.header.body_size = htons(r);
\n res_packet.header.status = SUCCESS;<\/p>\n

\/\/ \u53d1\u9001\u6570\u636e\u5305
\n int bytes_sent = write(confd, &res_packet, sizeof(res_packet.header) + r); \/\/\u5934\u90e8+\u8bfb\u5230\u7684\u6587\u4ef6\u957f\u5ea6
\n if (bytes_sent == -1) {
\n error_exit("write error");
\n break;
\n }
\n }<\/p>\n

\/\/ \u53d1\u9001\u7ed3\u675f\u6807\u5fd7（\u7a7a\u5305）
\n ResponsePacket end_packet;
\n end_packet.header.status = SUCCESS;
\n end_packet.header.body_size = htons(0);
\n write(confd, &end_packet, sizeof(end_packet.header));<\/p>\n

close(fd);
\n printf("server send file success\\\\n");
\n}<\/p>\n

void handle_PUSH()
\n{
\n \/\/ \u63a5\u6536\u5ba2\u6237\u7aef\u4fdd\u5b58\u7684\u6587\u4ef6\u540d
\n RequestPacket filename;
\n int r = myread(confd, (char *)&filename, sizeof(filename));
\n if (r <= 0) {
\n error_exit("Failed to receive filename");
\n return;
\n }<\/p>\n

\/\/ \u6e05\u9664\u6362\u884c\u7b26
\n filename.body[strcspn(filename.body, "\\\\n")] = 0;<\/p>\n

\/\/ \u6253\u5f00\u6587\u4ef6
\n int fd = open((const char *)filename.body, O_WRONLY | O_CREAT | O_TRUNC, 0644);
\n if (fd == -1) {
\n error_exit("server open file error");
\n return;
\n }<\/p>\n

while (1)
\n {
\n ResponsePacket revc_packet;
\n memset(&revc_packet, 0, sizeof(revc_packet));<\/p>\n

\/\/ \u5148\u8bfb\u53d6\u5934\u90e8
\n r = myread(confd, (char *)&revc_packet.header, sizeof(revc_packet.header));
\n if (r <= 0)
\n break;<\/p>\n

uint16_t body_size = ntohs(revc_packet.header.body_size);<\/p>\n

\/\/ \u68c0\u67e5\u662f\u5426\u4e3a\u7ed3\u675f\u6807\u5fd7
\n if (body_size == 0) {
\n printf("Received end of file marker\\\\n");
\n break;
\n }<\/p>\n

\/\/ \u8bfb\u53d6\u5305\u4f53
\n r = myread(confd, revc_packet.body, body_size);
\n if (r != body_size) {
\n error_exit("Error receiving file data");
\n break;
\n }<\/p>\n

\/\/ \u5199\u5165\u6587\u4ef6
\n r = write(fd, revc_packet.body, body_size);
\n if (r == -1) {
\n error_exit("Error writing to file");
\n break;
\n }
\n }<\/p>\n

close(fd);
\n printf("File upload success\\\\n");<\/p>\n

\/\/ \u53d1\u9001\u4e0a\u4f20\u6210\u529f\u54cd\u5e94
\n ResponsePacket success_packet;
\n success_packet.header.status = SUCCESS;
\n success_packet.header.body_size = htons(0);
\n write(confd, &success_packet, sizeof(success_packet.header));
\n}<\/p>\n

void handle_QUIT(RequestPacket packet)
\n{
\n \/\/\u4e0b\u7ebf\u63d0\u793a
\n struct sockaddr_in caddr;
\n bzero(&caddr,sizeof(caddr));
\n socklen_t len = sizeof(caddr);
\n getpeername(confd,(struct sockaddr *)&caddr,&len);
\n printf("client:%s off line\\\\n",inet_ntoa(caddr.sin_addr));
\n close(confd);
\n pthread_exit(NULL);
\n}<\/p>\n

myftp_server.h<\/p>\n

#ifndef _MYFTP_SERVER_H
\n#define _MYFTP_SERVER_H<\/p>\n

#include "mydatabase.h"
\n#include "stdio.h"
\n#include "stdlib.h"
\n#include <sys\/types.h>
\n#include <sys\/socket.h>
\n#include "netinet\/in.h"
\n#include "arpa\/inet.h"
\n#include "strings.h"
\n#include "string.h"
\n#include "unistd.h"
\n#include "fcntl.h"
\n#include "pthread.h"
\n#include <dirent.h>
\n#include "errno.h"<\/p>\n

void init_server(uint16 port);
\nvoid server_run(void);
\nvoid *handle_connection(void * arg);
\nvoid handle_LIST(RequestPacket packet);
\nvoid handle_GET(RequestPacket packet);
\nvoid handle_PUSH();
\nvoid handle_QUIT(RequestPacket packet);<\/p>\n

#endif<\/p>\n

\u5ba2\u6237\u7aef<\/h3>\n<\/p>\n

myftp_client.c<\/p>\n

#include "myftp_client.h"<\/p>\n

static int confd = -1;<\/p>\n

int main(int argc, char const *argv[])
\n{
\n \/\/\u8f93\u5165\u53c2\u6570\u63d0\u793a
\n if (argc != 3)
\n {
\n fprintf(stderr, "%s <server-ip> <server-port> \\\\n", argv[0]);
\n return 1;
\n }
\n \/\/\u521d\u59cb\u5316
\n init_client(argv[1],atoi(argv[2]));
\n \/\/\u8fd0\u884c
\n client_run();
\n \/\/\u5173\u95ed\u8fde\u63a5
\n client_close();<\/p>\n

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

void init_client(const char * ip,uint16 port)
\n{
\n \/\/\u521b\u5efa\u5957\u63a5\u5b57
\n confd = socket(AF_INET,SOCK_STREAM,0);
\n if(confd == -1)
\n error_exit("socket error");<\/p>\n

\/\/\u8fde\u63a5\u670d\u52a1\u5668
\n \/\/\u5148\u51c6\u5907\u670d\u52a1\u5668\u7aef\u7684\u901a\u4fe1\u5730\u5740
\n struct sockaddr_in addr;
\n bzero(&addr,sizeof(addr)); \/\/\u628a\u7ed3\u6784\u6e05\u96f6
\n addr.sin_family = AF_INET; \/\/\u8868\u793a\u4f7f\u7528IPV4
\n addr.sin_port = htons(port); \/\/\u8bbe\u7f6e\u7aef\u53e3\u53f7，\u7f51\u7edc\u5b57\u8282\u5e8f
\n addr.sin_addr.s_addr = inet_addr(ip);
\n \/\/\u518d\u8fde\u63a5
\n int r = connect(confd,(struct sockaddr*)&addr,sizeof(addr));
\n if(r == -1)
\n error_exit("client connect error");
\n}<\/p>\n

void client_run(void)
\n{
\n while(1)
\n {
\n char buf[256] = {0};
\n fgets(buf,sizeof(buf),stdin);
\n \/\/\u622a\u53d6\u547d\u4ee4 \u548c \u53c2\u6570
\n char cmd[10] = {0};
\n char path[256] = {0};
\n sscanf(buf,"%s%s",cmd,path);<\/p>\n

RequestPacket packet;<\/p>\n

memset(&packet,0,sizeof(packet));
\n memcpy(packet.body,path,strlen(path));
\n packet.header.body_size = htons(strlen(path));<\/p>\n

if (strcmp(cmd, "list") == 0)
\n {
\n packet.header.cmd = LIST;<\/p>\n

int r = write(confd, &packet, sizeof(packet));<\/p>\n

handle_list();
\n }
\n else if (strcmp(cmd, "get") == 0)
\n {
\n packet.header.cmd = GET;<\/p>\n

int r = write(confd, &packet, sizeof(packet));<\/p>\n

handle_get();
\n }
\n else if (strcmp(cmd, "push") == 0)
\n {
\n packet.header.cmd = PUSH;<\/p>\n

int r = write(confd, &packet, sizeof(packet));<\/p>\n

handle_push(packet);
\n }
\n else if (strcmp(cmd, "quit") == 0)
\n {
\n handle_quit();
\n }
\n else if (strcmp(cmd, "cls") == 0)
\n {
\n system("clear");
\n }
\n }
\n}<\/p>\n

void client_close(void)
\n{
\n close(confd);
\n}<\/p>\n

void handle_list(void)
\n{
\n printf("PRINT LIST\\\\n");
\n printf("———————————-\\\\n");
\n while(1)
\n {
\n ResponsePacket revc_packet;
\n memset(&revc_packet,0,sizeof(revc_packet));
\n myread(confd,(char *)&revc_packet.header,sizeof(revc_packet.header));
\n revc_packet.header.body_size = ntohs(revc_packet.header.body_size);
\n if(revc_packet.header.body_size == 0) \/\/\u5982\u679c\u5305\u5934\u7684\u6570\u636e\u957f\u5ea6\u4e3a0\u5219\u9000\u51fa
\n break;
\n myread(confd,(char *)&revc_packet.body,revc_packet.header.body_size);
\n printf("%s\\\\n", revc_packet.body);
\n }
\n printf("———————————-\\\\n");
\n}<\/p>\n

void handle_get()
\n{
\n printf("Start get file\\\\n");
\n printf("———————————-\\\\n");<\/p>\n

printf("save file as\\\\n");
\n char filename[20] = {0};
\n fgets(filename, sizeof(filename), stdin);
\n filename[strcspn(filename, "\\\\n")] = 0; \/\/ \u6e05\u9664\u6362\u884c\u7b26<\/p>\n

int fd = open((const char *)filename, O_WRONLY | O_CREAT | O_TRUNC, 0644);
\n if (fd == -1) {
\n error_exit("client open file error");
\n return;
\n }<\/p>\n

while (1)
\n {
\n ResponsePacket revc_packet;
\n memset(&revc_packet, 0, sizeof(revc_packet));<\/p>\n

\/\/ \u5148\u8bfb\u53d6\u5934\u90e8
\n int r = myread(confd, (char *)&revc_packet.header, sizeof(revc_packet.header));
\n if (r <= 0)
\n break;<\/p>\n

uint16_t body_size = ntohs(revc_packet.header.body_size);<\/p>\n

\/\/ \u5982\u679c\u662f\u7ed3\u675f\u6807\u5fd7（\u7a7a\u5305），\u5219\u9000\u51fa\u5faa\u73af
\n if (body_size == 0) {
\n printf("Received end of file marker\\\\n");
\n break;
\n }<\/p>\n

\/\/ \u518d\u8bfb\u5305\u4f53
\n r = myread(confd, revc_packet.body, body_size);
\n if (r != body_size) {
\n error_exit("client read error");
\n break;
\n }<\/p>\n

\/\/ \u5199\u5165\u6587\u4ef6
\n int bytes_written = write(fd, revc_packet.body, body_size);
\n if (bytes_written == -1) {
\n error_exit("client write error");
\n break;
\n }
\n }<\/p>\n

close(fd);
\n printf("———————————-\\\\n");
\n printf("Get file Success\\\\n");
\n}<\/p>\n

void handle_push(RequestPacket packet)
\n{
\n printf("Start Push\\\\n");
\n printf("———————————-\\\\n");
\n char path[100] = {0};
\n memcpy(path, packet.body, ntohs(packet.header.body_size));<\/p>\n

printf("Save file as\\\\n");<\/p>\n

\/\/ \u53d1\u9001\u4fdd\u5b58\u6587\u4ef6\u540d
\n RequestPacket filenamepacket;
\n memset(&filenamepacket, 0, sizeof(filenamepacket));
\n filenamepacket.header.cmd = PUSH;
\n fgets(filenamepacket.body, sizeof(filenamepacket.body), stdin);
\n filenamepacket.header.body_size = htons(strlen(filenamepacket.body));<\/p>\n

int r = write(confd, &filenamepacket, sizeof(filenamepacket));
\n if (r == -1) {
\n error_exit("Failed to send filename");
\n return;
\n }<\/p>\n

\/\/ \u6253\u5f00\u6587\u4ef6
\n int fd = open(path, O_RDONLY);
\n if (fd == -1) {
\n error_exit("client open file error");
\n return;
\n }<\/p>\n

\/\/ \u5206\u5757\u53d1\u9001\u6587\u4ef6\u5185\u5bb9
\n while (1)
\n {
\n ResponsePacket res_packet;
\n memset(&res_packet, 0, sizeof(res_packet));<\/p>\n

int r = read(fd, res_packet.body, sizeof(res_packet.body));
\n if (r == -1) {
\n error_exit("client read file error");
\n break;
\n }<\/p>\n

\/\/ \u53d1\u9001\u6587\u4ef6\u5185\u5bb9\u5757
\n res_packet.header.body_size = htons(r);
\n res_packet.header.status = SUCCESS;<\/p>\n

if (r > 0) {
\n r = write(confd, &res_packet, sizeof(res_packet.header) + r);
\n if (r == -1) {
\n error_exit("client write error");
\n break;
\n }
\n } else {
\n \/\/ \u6587\u4ef6\u8bfb\u53d6\u5b8c\u6bd5，\u53d1\u9001\u7ed3\u675f\u6807\u5fd7
\n res_packet.header.body_size = htons(0);
\n write(confd, &res_packet, sizeof(res_packet.header));
\n break;
\n }
\n }<\/p>\n

close(fd);<\/p>\n

\/\/ \u7b49\u5f85\u670d\u52a1\u5668\u786e\u8ba4
\n ResponsePacket confirm_packet;
\n memset(&confirm_packet, 0, sizeof(confirm_packet));
\n r = myread(confd, (char *)&confirm_packet.header, sizeof(confirm_packet.header));
\n if (r > 0 && ntohs(confirm_packet.header.body_size) == 0) {
\n printf("———————————-\\\\n");
\n printf("Push file Success\\\\n");
\n } else {
\n printf("Push file failed\\\\n");
\n }
\n}<\/p>\n

void handle_quit(void)
\n{
\n printf("Bye Bye~\\\\n");
\n exit(0);
\n}<\/p>\n

myftp_client.h<\/p>\n

#ifndef __MYFTP_CLIENT_H
\n#define __MYFTP_CLIENT_H<\/p>\n

#include "mydatabase.h"
\n#include "stdio.h"
\n#include "stdlib.h"
\n#include <sys\/types.h>
\n#include <sys\/socket.h>
\n#include "netinet\/in.h"
\n#include "arpa\/inet.h"
\n#include "strings.h"
\n#include "string.h"
\n#include "unistd.h"
\n#include "fcntl.h"
\n#include "signal.h"<\/p>\n

void init_client(const char * ip,uint16 port);
\nvoid client_run(void);
\nvoid client_close(void);<\/p>\n

void handle_list(void);
\nvoid handle_get();
\nvoid handle_push(RequestPacket packet);
\nvoid handle_quit(void);<\/p>\n

#endif<\/p>\n

\u6570\u636e\u5305\u5b9a\u4e49<\/h3>\n

\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u5b9a\u4e49\u4e86\u8bf7\u6c42\u6570\u636e\u5305\u3001\u54cd\u5e94\u6570\u636e\u5305\u3001\u547d\u4ee4\u679a\u4e3e\u3001\u548c\u72b6\u6001\u679a\u4e3e<\/p>\n

mydatabase.h<\/p>\n

#ifndef __MYDATABESE_H
\n#define __MYDATABESE_H<\/p>\n

#include "stdio.h"
\n#include "stdlib.h"
\n#include "unistd.h"
\n#include "string.h"
\n#include "arpa\/inet.h"
\n#include "sys\/socket.h"
\n#include "pthread.h"
\n#include "malloc.h"<\/p>\n

\/\/\u81ea\u5b9a\u4e49\u6570\u636e\u6700\u5927\u957f\u5ea6
\n#define MSG_SIZE 1024<\/p>\n

typedef unsigned int uint32;
\ntypedef unsigned short uint16;<\/p>\n

\/\/\u5b9a\u4e49\u547d\u4ee4\u679a\u4e3e
\ntypedef enum Command
\n{
\n LIST, \/\/\u5217\u51fa\u5f53\u524d\u6587\u4ef6
\n GET, \/\/\u4e0b\u8f7d\u6587\u4ef6
\n PUSH, \/\/\u4e0a\u4f20\u6587\u4ef6
\n QUIT \/\/\u9000\u51fa\u6307\u4ee4
\n} Command;<\/p>\n

\/\/\u5b9a\u4e49\u54cd\u5e94\u72b6\u6001
\ntypedef enum Status{
\n SUCCESS, \/\/\u64cd\u4f5c\u6210\u529f
\n ERROR \/\/\u64cd\u4f5c\u5931\u8d25
\n} Status;<\/p>\n

\/\/ \u544a\u8bc9\u7f16\u8bd1\u5668\u63091\u5b57\u8282\u5bf9\u9f50\u7ed3\u6784\u4f53，\u907f\u514d\u5b57\u8282\u5bf9\u9f50\u5e26\u6765\u7684\u5185\u5b58\u586b\u5145\u95ee\u9898，\u786e\u4fdd\u7ed3\u6784\u4f53\u5728\u4e0d\u540c\u5e73\u53f0\u4e0a\u7684\u5185\u5b58\u5e03\u5c40\u4e00\u81f4
\n#pragma pack(1)<\/p>\n

\/\/ \u8bf7\u6c42\u5305\u5934\u7ed3\u6784\u4f53，\u5305\u542b\u8bf7\u6c42\u7684\u6307\u4ee4\u548c\u5305\u4f53\u5927\u5c0f
\ntypedef struct RequestHeader
\n{
\n Command cmd; \/\/ \u8bf7\u6c42\u6307\u4ee4，\u4f7f\u7528\u524d\u9762\u5b9a\u4e49\u7684Command\u679a\u4e3e\u7c7b\u578b
\n uint16 body_size; \/\/ \u8bf7\u6c42\u5305\u4f53\u5927\u5c0f，\u4f7f\u7528\u65e0\u7b26\u53f7\u77ed\u6574\u578b
\n} RequestHeader;<\/p>\n

\/\/ \u54cd\u5e94\u5305\u5934\u7ed3\u6784\u4f53，\u5305\u542b\u54cd\u5e94\u7684\u72b6\u6001\u548c\u5305\u4f53\u5927\u5c0f
\ntypedef struct ResponseHeader
\n{
\n Status status; \/\/ \u54cd\u5e94\u72b6\u6001，\u4f7f\u7528\u524d\u9762\u5b9a\u4e49\u7684Status\u679a\u4e3e\u7c7b\u578b
\n uint16 body_size; \/\/ \u54cd\u5e94\u5305\u4f53\u5927\u5c0f，\u4f7f\u7528\u65e0\u7b26\u53f7\u77ed\u6574\u578b
\n} ResponseHeader;<\/p>\n

\/\/ \u8bf7\u6c42\u6570\u636e\u5305\u7ed3\u6784\u4f53，\u5305\u542b\u8bf7\u6c42\u5305\u5934\u548c\u8bf7\u6c42\u5305\u4f53
\ntypedef struct RequestPacket
\n{
\n RequestHeader header; \/\/ \u8bf7\u6c42\u5305\u5934
\n char body[MSG_SIZE]; \/\/ \u8bf7\u6c42\u5305\u4f53，\u6700\u5927\u957f\u5ea6\u4e3aMSG_SIZE
\n} RequestPacket;<\/p>\n

\/\/ \u54cd\u5e94\u6570\u636e\u5305\u7ed3\u6784\u4f53，\u5305\u542b\u54cd\u5e94\u5305\u5934\u548c\u54cd\u5e94\u5305\u4f53
\ntypedef struct ResponsePacket
\n{
\n ResponseHeader header; \/\/ \u54cd\u5e94\u5305\u5934
\n char body[MSG_SIZE]; \/\/ \u54cd\u5e94\u5305\u4f53，\u6700\u5927\u957f\u5ea6\u4e3aMSG_SIZE
\n} ResponsePacket;<\/p>\n

\/\/ \u6062\u590d\u9ed8\u8ba4\u7684\u5b57\u8282\u5bf9\u9f50\u65b9\u5f0f
\n#pragma pack()<\/p>\n

\/\/ \u9519\u8bef\u5904\u7406\u51fd\u6570，\u7528\u4e8e\u8f93\u51fa\u9519\u8bef\u4fe1\u606f\u5e76\u7ec8\u6b62\u7a0b\u5e8f
\nstatic void error_exit(const char *msg)
\n{
\n perror(msg); \/\/ \u8f93\u51fa\u9519\u8bef\u4fe1\u606f
\n exit(1); \/\/ \u7ec8\u6b62\u7a0b\u5e8f，\u8fd4\u56de\u9519\u8bef\u78011
\n}<\/p>\n

\/\/ \u4ece\u6587\u4ef6\u63cf\u8ff0\u7b26\u4e2d\u8bfb\u53d6\u6307\u5b9a\u5927\u5c0f\u7684\u6570\u636e\u7684\u51fd\u6570，\u786e\u4fdd\u8bfb\u53d6\u5230\u8db3\u591f\u7684\u6570\u636e
\nstatic int myread(int fd, char *buf, int size)
\n{
\n int readed_bytes = 0; \/\/ \u5df2\u8bfb\u53d6\u7684\u5b57\u8282\u6570
\n int ret; \/\/ \u6bcf\u6b21read\u51fd\u6570\u7684\u8fd4\u56de\u503c
\n while (1)
\n {
\n \/\/ \u4ece\u6587\u4ef6\u63cf\u8ff0\u7b26fd\u4e2d\u8bfb\u53d6\u6570\u636e\u5230buf + readed_bytes\u4f4d\u7f6e，\u6700\u591a\u8bfb\u53d6size – readed_bytes\u5b57\u8282
\n ret = read(fd, buf + readed_bytes, size – readed_bytes);
\n if (ret == -1)
\n exit(1); \/\/ \u8bfb\u53d6\u51fa\u9519，\u7ec8\u6b62\u7a0b\u5e8f
\n if (ret == 0)
\n break; \/\/ \u8bfb\u53d6\u5230\u6587\u4ef6\u672b\u5c3e，\u9000\u51fa\u5faa\u73af<\/p>\n

readed_bytes += ret; \/\/ \u66f4\u65b0\u5df2\u8bfb\u53d6\u7684\u5b57\u8282\u6570
\n if (readed_bytes == size)
\n break; \/\/ \u5df2\u8bfb\u53d6\u5230\u6307\u5b9a\u5927\u5c0f\u7684\u6570\u636e，\u9000\u51fa\u5faa\u73af
\n }
\n return readed_bytes; \/\/ \u8fd4\u56de\u5b9e\u9645\u8bfb\u53d6\u7684\u5b57\u8282\u6570
\n}<\/p>\n

#endif<\/p>\n

\u4e94\u3001\u7f16\u8bd1\u4e0e\u8fd0\u884c<\/h2>\n

\u7f16\u8bd1\u9879\u76ee<\/h4>\n

\u5728\u9879\u76ee\u6839\u76ee\u5f55\u4e0b，\u4f7f\u7528 Makefile \u8fdb\u884c\u7f16\u8bd1：<\/p>\n

make server
\nmake client<\/p>\n

\u6b64\u547d\u4ee4\u5c06\u751f\u6210 server \u548c client \u53ef\u6267\u884c\u6587\u4ef6\u3002<\/p>\n

\u8fd0\u884c\u670d\u52a1\u5668<\/h4>\n

.\/server <server-port><\/p>\n

    \n
  • \n

    server-port \u662f\u670d\u52a1\u5668\u76d1\u542c\u7684\u7aef\u53e3\u53f7，\u4f8b\u5982 8888\u3002<\/p>\n<\/li>\n<\/ul>\n

    \u8fd0\u884c\u5ba2\u6237\u7aef<\/h4>\n

    .\/client <server-ip> <server-port><\/p>\n

      \n
    • \n

      server-ip \u662f\u670d\u52a1\u5668\u7684 IP \u5730\u5740\u3002<\/p>\n<\/li>\n

    • \n

      server-port \u662f\u670d\u52a1\u5668\u76d1\u542c\u7684\u7aef\u53e3\u53f7，\u9700\u4e0e\u542f\u52a8\u670d\u52a1\u5668\u65f6\u6307\u5b9a\u7684\u7aef\u53e3\u53f7\u4e00\u81f4\u3002<\/p>\n<\/li>\n<\/ul>\n

      Makefile<\/p>\n

      server: myftp_server.o
      \ngcc $^ -o $@ -pthread<\/p>\n

      client: myftp_client.o
      \ngcc $^ -o $@ -pthread<\/p>\n

      clean:
      \nrm *.o -rf
      \nrm server client -rf <\/p>\n

      \u516d\u3001\u8fd0\u884c\u793a\u4f8b<\/h2>\n

      list\u6307\u4ee4<\/h3>\n

      \u7ed3\u679c\u5982\u56fe<\/p>\n

      \"\"<\/h3>\n

      get\u6307\u4ee4<\/h3>\n

      \u8f93\u5165 \u8981\u83b7\u53d6\u7684\u6587\u4ef6.\/example.bmp（\u8def\u5f84+\u6587\u4ef6\u540d）<\/p>\n

      \u518d\u6b21\u8f93\u5165\u5c06\u6b64\u6587\u4ef6\u91cd\u547d\u540d\u4fe1\u606f\u00a0 .\/new.bmp (\u8def\u5f84+\u6587\u4ef6\u540d)<\/p>\n

      \"\"<\/p>\n

      push\u6307\u4ee4<\/h3>\n

      \u8f93\u5165 \u8981\u53d1\u9001\u7684\u6587\u4ef6.\/example.bmp（\u8def\u5f84+\u6587\u4ef6\u540d）<\/p>\n

      \u518d\u6b21\u8f93\u5165\u5c06\u6b64\u6587\u4ef6\u5728\u5ba2\u6237\u7aef\u91cd\u547d\u540d\u4fe1\u606f\u00a0 .\/new1.bmp (\u8def\u5f84+\u6587\u4ef6\u540d)<\/p>\n

      \"\"<\/p>\n

      quit\u6307\u4ee4<\/h3>\n

      \u5ba2\u6237\u7aef\u9000\u51fa\u63d0\u793a<\/p>\n

      \"\"<\/p>\n

      \u670d\u52a1\u7aef\u63d0\u793a\u4e0b\u7ebf<\/p>\n

      \"\"<\/p>\n

      \u4e03\u3001\u6ce8\u610f\u4e8b\u9879<\/h2>\n

      1.\u4ee3\u7801\u4e2d\u4f7f\u7528\u4e86 pthread \u5e93\u8fdb\u884c\u591a\u7ebf\u7a0b\u7f16\u7a0b，\u7f16\u8bd1\u65f6\u9700\u94fe\u63a5\u8be5\u5e93\u3002<\/p>\n

      2.\u8bf7\u786e\u4fdd\u670d\u52a1\u5668\u548c\u5ba2\u6237\u7aef\u5728\u540c\u4e00\u7f51\u7edc\u73af\u5883\u4e2d，\u4e14\u9632\u706b\u5899\u5141\u8bb8\u76f8\u5e94\u7aef\u53e3\u7684\u901a\u4fe1\u3002<\/p>\n

      3.\u5728\u4f20\u8f93\u5927\u6587\u4ef6\u7684\u65f6\u5019，\u5982\u679c\u89c9\u5f97\u4f20\u8f93\u7684\u901f\u5ea6\u8f83\u6162，\u53ef\u4ee5\u5c06\u5b8f\u5b9a\u4e49\u7684MSG_SIZE<\/span>\u8c03\u5927<\/span><\/p>\n

      \u7ed3\u5c3e<\/span><\/h2>\n

      \u5982\u679c\u4f60\u53d1\u73b0\u9879\u76ee\u5b58\u5728\u95ee\u9898\u6216\u6709\u6539\u8fdb\u5efa\u8bae，\u6b22\u8fce\u7559\u8a00<\/p>\n","protected":false},"excerpt":{"rendered":"

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