NAME¶

CURLOPT_TFTP_NO_OPTIONS - send no TFTP options requests

SYNOPSIS¶

#include <curl/curl.h>
CURLcode curl_easy_setopt(CURL *handle, CURLOPT_TFTP_NO_OPTIONS, long onoff);

DESCRIPTION¶

Set onoff to 1L to exclude all TFTP options defined in RFC2347, RFC2348 and RFC2349 from read and write requests (RRQs/WRQs).

This option improves interop with some legacy servers that do not acknowledge or properly implement TFTP options. When this option is used CURLOPT_TFTP_BLKSIZE(3) is ignored.

DEFAULT¶

0

PROTOCOLS¶

TFTP

EXAMPLE¶

size_t write_callback(char *ptr, size_t size, size_t nmemb, void *fp)
{


  return fwrite(ptr, size, nmemb, (FILE *)fp);
}
CURL *curl = curl_easy_init();
if(curl) {


  FILE *fp = fopen("foo.bin", "wb");


  if(fp) {


    curl_easy_setopt(curl, CURLOPT_WRITEDATA, (void *)fp);


    curl_easy_setopt(curl, CURLOPT_WRITEFUNCTION, write_callback);


    curl_easy_setopt(curl, CURLOPT_URL, "tftp://example.com/foo.bin");


    /* do not send TFTP options requests */


    curl_easy_setopt(curl, CURLOPT_TFTP_NO_OPTIONS, 1L);


    /* Perform the request */


    curl_easy_perform(curl);


    fclose(fp);


  }


  curl_easy_cleanup(curl);
}

AVAILABILITY¶

Added in 7.48.0

RETURN VALUE¶

Returns CURLE_OK if the option is supported, and CURLE_UNKNOWN_OPTION if not.

SEE ALSO¶

CURLOPT_TFTP_BLKSIZE(3),