From 6e16c5d504d8931e24df2bf0f3f3d0df9bfa8b1f Mon Sep 17 00:00:00 2001 From: ambrumf <421653227@qq.com> Date: Thu, 12 Oct 2023 02:37:35 +0800 Subject: [PATCH] update ftpserver --- .../app_test/test_ftpclient_final/ftpserver.c | 194 ++++++++++++++++++ .../test_ftpclient_final/test_ftpclient.c | 8 + 2 files changed, 202 insertions(+) create mode 100644 APP_Framework/Applications/app_test/test_ftpclient_final/ftpserver.c diff --git a/APP_Framework/Applications/app_test/test_ftpclient_final/ftpserver.c b/APP_Framework/Applications/app_test/test_ftpclient_final/ftpserver.c new file mode 100644 index 000000000..a88b9a851 --- /dev/null +++ b/APP_Framework/Applications/app_test/test_ftpclient_final/ftpserver.c @@ -0,0 +1,194 @@ +/* + * Copyright (c) 2020 AIIT Ubiquitous Team + * XiUOS is licensed under Mulan PSL v2. + * You can use this software according to the terms and conditions of the Mulan PSL v2. + * You may obtain a copy of Mulan PSL v2 at: + * http://license.coscl.org.cn/MulanPSL2 + * THIS SOFTWARE IS PROVIDED ON AN "AS IS" BASIS, WITHOUT WARRANTIES OF ANY KIND, + * EITHER EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO NON-INFRINGEMENT, + * MERCHANTABILITY OR FIT FOR A PARTICULAR PURPOSE. + * See the Mulan PSL v2 for more details. + */ + +/** + * @file: ftpserver.c + * @brief: an application of an FTP server running on Linux + * @version: 1.0 + * @author: Ambrumf + * @date: 2023/10/11 + */ + +#include +#include +#include +#include +#include +#include + +#define CMD_PORT 9970 +#define BACKLOG_LEN 128 +#define MAX_USERS 100 +#define MAX_CONNECTION 100 +#define UNLOGED_IN 0 +#define LOGED_IN 1 +struct User { + char username[50]; + char password[50]; +}; + +struct LoginStatus { + char *addr; + char username[50]; + char password[50]; + int login_status;//登录状态，0代表未登录 1代表已登录 +}; + +struct User users[MAX_USERS]; +struct LoginStatus login_list[MAX_CONNECTION]; + +int CheckPassword(int it){ + for(int i=0;iusers[i]->username) == 0 && strcmp(login_list[it]->users[i]->password) == 0)return 1; + } + return 0; +} + +char *GetAddress(struct sockaddr_in addr) { + char *address_string = (char *)malloc(INET_ADDRSTRLEN + 10); + + if (address_string == NULL) { + return NULL; + } + + char ipStr[INET_ADDRSTRLEN]; + inet_ntop(AF_INET, &(addr.sin_addr), ipStr, sizeof(ipStr)); + + sprintf(address_string, "%s:%d", ipStr, ntohs(addr.sin_port)); + return address_string; +} + +char *GetRespond(char *buf,int it) { + char * cmd-malloc(100); + char * data=malloc(100); + char * respond=malloc(100); + sscanf(buf,"%s %s",cmd,data); + if(strcmp(cmd,"USER")==0){ + login_list[it]->login_status=LOGGED_IN; + strcpy(login_list[it]->username,data); + sprintf(respond,"331 %d login ok, send your password\n",data); + } + else if(strcmp(cmd,"PASS")==0){ + login_list[it]->login_status=LOGGED_IN; + if(CheckPassword(it)){ + sprintf(respond,"230 access granted, restrictions apply\n"); + } + else{ + sprintf(respond,"530 password incorrect\n"); + } + } + else if(strcmp(cmd,"SIZE")==0){ + + } + else if(strcmp(cmd,"PASV")==0){ + + } + else if(strcmp(cmd,"RETR")==0){ + + } + else if(strcmp(cmd,"STOR")==0){ + + } + else { + respond = "500 syntax error\n"; + } + return respond; +} + +int Init() { + memset(login_status,0,sizeof(login_status)); + memset(users,0,sizeof(users)); + + int fd = socket(AF_INET, SOCK_STREAM, 0); + if (fd < 0) { + printf("Failed to create socket\n"); + return 0; + } + + struct sockaddr_in server_addr; + server_addr.sin_family = AF_INET; + server_addr.sin_port = htons(CMD_PORT); + server_addr.sin_addr.s_addr = INADDR_ANY; + int ret = bind(fd, (struct sockaddr *)&server_addr, sizeof(server_addr)); + if (ret < 0) { + printf("%d\n", ret); + printf("Failed to bind socket\n"); + return 0; + } + + listen(fd, BACKLOG_LEN); + printf("Socket created, binding to port 9970\n"); + + while (1) { + struct sockaddr_in client_addr; + socklen_t len = sizeof(client_addr); + int cmd_fd = accept(fd, (struct sockaddr *)&client_addr, &len); + + char *client_ip; + int client_port; + inet_ntop(AF_INET, &(client_addr.sin_addr), client_ip, sizeof(client_ip)); + client_port = ntohs(client_addr.sin_port); + printf("Client %s:%d connected.\n", client_ip, client_port); + + int it=-1; + for(int i=0;iaddr)){ + it=i; + break; + } + } + if (it==-1){ + for(int i=0;ilogin_status==0){ + it=i; + break; + } + } + if(it==-1){ + const char limit_exceeded = "530 connection limit exceeded."; + write(cmd_fd, limit_exceeded, strlen(limit_exceeded)); + continue; + } + } + if(login_list[it]->login_status == UNLOGED_IN){ + const char welcome = "220 welcome."; + write(cmd_fd, welcome, strlen(welcome)); + } + + char buf[1024]; + int len; + len = read(cmd_fd, buf, sizeof(buf)); + + if (len < 0) { + printf("Failed to read or client closed\n"); + } + + char *respond = GetRespond(buf, it); + write(cmd_fd, respond, strlen(respond)); + } +} + +void InsertUser(char * username,char * password) +{ + for(int i=0;iusername)==0){ + strcpy(users[i]->username,username); + strcpy(users[i]->password,password); + return; + } + } +} +int main() { + InsertUser("frank","114514"); + Init(); + return 0; +} \ No newline at end of file diff --git a/APP_Framework/Applications/app_test/test_ftpclient_final/test_ftpclient.c b/APP_Framework/Applications/app_test/test_ftpclient_final/test_ftpclient.c index b81177641..acb07fe0b 100644 --- a/APP_Framework/Applications/app_test/test_ftpclient_final/test_ftpclient.c +++ b/APP_Framework/Applications/app_test/test_ftpclient_final/test_ftpclient.c @@ -12,6 +12,14 @@ http://license.coscl.org.cn/MulanPSL2 * See the Mulan PSL v2 for more details. */ +/** +* @file: test_ftpclinet.c +* @brief: a application of test ftpclient +* @version: 1.0 +* @author: Ambrumf +* @date: 2023/10/11 +*/ + #include #include #include