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CURLOPT_TFTP_NO_OPTIONS(3) Library Functions Manual CURLOPT_TFTP_NO_OPTIONS(3) 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 RFC 2347, RFC 2348 and RFC 2349 from read and write requests. This option improves interoperability with 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 This functionality affects tftp only EXAMPLE size_t write_callback(char *ptr, size_t size, size_t nmemb, void *fp) { return fwrite(ptr, size, nmemb, (FILE *)fp); } int main(void) { 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 curl 7.48.0 RETURN VALUE curl_easy_setopt(3) returns a CURLcode indicating success or error. CURLE_OK (0) means everything was OK, non-zero means an error occurred, see libcurl-errors(3). SEE ALSO CURLOPT_TFTP_BLKSIZE(3) libcurl 2025-06-03 CURLOPT_TFTP_NO_OPTIONS(3)
NAME | SYNOPSIS | DESCRIPTION | DEFAULT | PROTOCOLS | EXAMPLE | AVAILABILITY | RETURN VALUE | SEE ALSO
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