2

2026-05-28 08:48:01 +08:00
parent 1132d9e9a7
commit 43902c20e4
93 changed files with 84995 additions and 26 deletions
--- a/server-exp/ftps.c
+++ b/server-exp/ftps.c
@@ -0,0 +1,101 @@
+#include "common.h"
+
+typedef struct ftp_file
+{
+    char cmd[MAXLINE];  // FTP命令
+    char filename[MAXLINE]; // 文件名参数
+    char fileSize[MAXLINE]; // 文件大小参数
+} ftp_file_t;
+
+void toggle(int conn_sock,int hit)
+{
+    size_t n; int i,no=0;
+    char buf[MAXBUF];
+    ftp_file_t file;
+    char filePath[MAXLINE] = "./"; // 假设当前目录下有文件
+
+    printf("第%d个客户通信开始\n",hit);
+    while((n =recv(conn_sock, &file, sizeof(ftp_file_t),0))> 0) {
+        printf("toggle服务器收到第%d个客户第%d个消息,长度为%d字节\n", hit,++no,(int)n);
+        if (strcmp(file.cmd,"put")==0)
+        {
+            int fileSize = atoi(file.fileSize);
+            char *fileContent = malloc(fileSize);
+            recv(conn_sock, fileContent, fileSize, 0); // 接收文件内容
+            FILE *fp = fopen(file.filename, "w");
+            if (fp == NULL) {
+                perror("Error opening file for writing");
+            } else {
+                fwrite(fileContent, 1, fileSize, fp); // 将接收到的内容写入文件
+                fclose(fp);
+            }
+            free(fileContent);
+            strcpy(buf, "File received successfully\n");
+            send (conn_sock, buf, strlen(buf), 0);
+        }
+        else if (strcmp(file.cmd,"get")==0)
+        {
+            strcat(filePath, file.filename); // 构建完整文件路径
+            FILE *fp = fopen(filePath, "r");
+            if (fp == NULL) {
+                perror("Error opening file for reading");
+                strcpy(file.fileSize, "0");
+                send(conn_sock, &file, sizeof(ftp_file_t), 0); // 发送错误信息
+            } else {
+                fseek(fp, 0, SEEK_END);
+                long fileSize = ftell(fp);
+                fclose(fp);
+                snprintf(file.fileSize, MAXLINE, "%ld", fileSize); // 将文件大小转换为字符串并存储
+                send(conn_sock, &file, sizeof(ftp_file_t), 0); // 发送文件信息
+                fp = fopen(filePath, "r");
+                if (fp != NULL) {
+                    char *fileContent = malloc(fileSize);
+                    fread(fileContent, 1, fileSize, fp); // 从文件中读取内容到缓冲区
+                    fclose(fp);
+                    send(conn_sock, fileContent, fileSize, 0); // 发送文件内容
+                    free(fileContent);
+                    strcpy(buf, "File sent successfully\n");
+                    send (conn_sock, buf, strlen(buf), 0);
+                }
+            }
+        }
+
+    }
+    printf("第%d个客户通信结束\n",hit);
+}
+
+int main(int argc, char **argv) 
+{
+    int listen_sock, conn_sock, port, clientlen;
+    struct sockaddr_in clientaddr;
+    struct hostent *hp;
+    char *haddrp;
+    int hit;
+	
+    if (argc != 2) {
+	    fprintf(stderr, "usage: %s <port>\n", argv[0]);
+	    exit(1);
+    }
+    port = atoi(argv[1]);
+
+    listen_sock = open_listen_sock(port);    
+    if( listen_sock==-1) {
+    	printf("端口号%d繁忙\n",port);
+    	exit(1);
+    }
+    
+    for (hit=1; ; hit++) {
+	    clientlen = sizeof(clientaddr);
+	    conn_sock = accept(listen_sock, (SA *)&clientaddr, &clientlen);
+
+	    /* determine the domain name and IP address of the client */
+	    hp = gethostbyaddr((const char *)&clientaddr.sin_addr.s_addr, 
+			   sizeof(clientaddr.sin_addr.s_addr), AF_INET);
+	    haddrp = inet_ntoa(clientaddr.sin_addr);
+	    printf("server connected to %s (%s)\n", hp->h_name, haddrp);
+
+	    toggle(conn_sock,hit);
+	    close(conn_sock);
+    }
+    exit(0);
+}