如何通过 ssl 和套接字发送目标文件 .o

发布于 2024-12-12 01:45:14 字数 1214 浏览 0 评论 0原文

我需要将目标文件从客户端发送到服务器程序。我尝试读取该文件，将其存储到缓冲区中，通过 ssl 发送缓冲区并写入服务器程序中的文件。这不适用于 .o 文件。这就是 ELF 的输出。

这是我的一些代码

读取文件

void readFile(char filename[])  
{
    FILE        *input_file;
    char        line[BUFSIZ];

    input_file = fopen(filename, "r");

    if(input_file == NULL){
        printf("cannot open input_file '%s'\n", filename );
        exit(EXIT_FAILURE);
    }

while (fgets(line,sizeof line, input_file) != NULL) {

    for(int i = 0; i<strlen(line); i++){
        current_file[i] = line[i];
    }   
}}

客户端发送文件

    readFile(filename);
    ctx = InitCTX();  
    server = OpenConnection(hostname, atoi(portnum));  
    ssl = SSL_new(ctx);      /* create new SSL connection state */  
    SSL_set_fd(ssl, server);    /* attach the socket descriptor */  
    if ( SSL_connect(ssl) == FAIL )   /* perform the connection */  
        ERR_print_errors_fp(stderr);  
    else  
    {   

        printf("Connected with %s encryption\n", SSL_get_cipher(ssl));  
        ShowCerts(ssl);        /* get any certs */  
        SSL_write(ssl, current_file, strlen(current_file));

是否可以读取目标文件，然后将其存储在缓冲区中？

还有其他方法可以发送这些文件吗？

原文

I need to send an object file from my client to the server program.
I tried reading the file, storing it into a buffer, sent the buffer over the ssl and wrote to a file in the server program.
This did not work for .o files. This was the out put ELF.

This is some of my code

Read file

void readFile(char filename[])  
{
    FILE        *input_file;
    char        line[BUFSIZ];

    input_file = fopen(filename, "r");

    if(input_file == NULL){
        printf("cannot open input_file '%s'\n", filename );
        exit(EXIT_FAILURE);
    }

while (fgets(line,sizeof line, input_file) != NULL) {

    for(int i = 0; i<strlen(line); i++){
        current_file[i] = line[i];
    }   
}}

Client sends the file

    readFile(filename);
    ctx = InitCTX();  
    server = OpenConnection(hostname, atoi(portnum));  
    ssl = SSL_new(ctx);      /* create new SSL connection state */  
    SSL_set_fd(ssl, server);    /* attach the socket descriptor */  
    if ( SSL_connect(ssl) == FAIL )   /* perform the connection */  
        ERR_print_errors_fp(stderr);  
    else  
    {   

        printf("Connected with %s encryption\n", SSL_get_cipher(ssl));  
        ShowCerts(ssl);        /* get any certs */  
        SSL_write(ssl, current_file, strlen(current_file));

Is it possible to read object file, and then store it in a buffer?

Is there other methods to send these file?

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来日方长 2024-12-19 01:45:15

这是用于缓冲二进制文件（如“对象”文件）的示例代码。为了简洁起见，不进行检查和指针维护。

 FILE *file;
 char *buffer;
 unsigned long len;
 unsigned char buffer*;
 //open in binary mode
 file = fopen(name, "rb");
 //check file size
 fseek(file, 0, SEEK_END);
 len = ftell(file);
 fseek(file, 0, SEEK_SET);
 //allocate buffer accordingly
 buffer = (unsigned char *) calloc (1, fileLen + 1); //1 byte for the terminator
 //Store into buffer
 fread(buffer, len, 1, file);

This is a sample code for buffering binary files like the "object" ones. Checks and pointers maintenance are not there for brevity sake.

 FILE *file;
 char *buffer;
 unsigned long len;
 unsigned char buffer*;
 //open in binary mode
 file = fopen(name, "rb");
 //check file size
 fseek(file, 0, SEEK_END);
 len = ftell(file);
 fseek(file, 0, SEEK_SET);
 //allocate buffer accordingly
 buffer = (unsigned char *) calloc (1, fileLen + 1); //1 byte for the terminator
 //Store into buffer
 fread(buffer, len, 1, file);

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