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RL-TCPnet Webserver: Data Download to Client txt-File

Mathias M.

Hi,

I am using the RL-TCPnet Webserver based on the "http_demo" and would like to import and export data into a txt-File on the client pc.

Uploading the data from the client was no problem using the post method to submit the form and process it with the cgi function "cgi_process_data" (as seen in the "http_upload example").

My problem is to export the Data (~1kB) to the Client PC to save it in a txt-File (should be made from the browser).

I am using no file system on the webserver and dont want want to use a tftp server (out of ram and rom).

Shouldn't it be possible to send the Data via HTTP?

I wasn't able to find a library function, nor any examples about this.

Any help would be appreciated!

Thanks in advance,
Mathias

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  • 0

    create a "your_data_txt.cgi" file that looks like this:

    c %s

    Then in cgi_func output your formatted data. ex:

    
uint16_t cgi_func (uint8_t *env, uint8_t *buf, uint16_t buflen, uint32_t *pcgi)
{
    uint32_t len = 0;
    uint8_t id;
    char buffer[5];

    len = sprintf((char *)buf,(const char *)&env[0], "your text data");
    return ((uint16_t)len);
}

Reply
  • 0

    create a "your_data_txt.cgi" file that looks like this:

    c %s

    Then in cgi_func output your formatted data. ex:

    
uint16_t cgi_func (uint8_t *env, uint8_t *buf, uint16_t buflen, uint32_t *pcgi)
{
    uint32_t len = 0;
    uint8_t id;
    char buffer[5];

    len = sprintf((char *)buf,(const char *)&env[0], "your text data");
    return ((uint16_t)len);
}

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