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                     23: .TH CURLOPT_TFTP_NO_OPTIONS 3 "April 06, 2016" "libcurl 7.70.0" "curl_easy_setopt options"
                     24: 
                     25: .SH NAME
                     26: CURLOPT_TFTP_NO_OPTIONS \- Do not send TFTP options requests.
                     27: .SH SYNOPSIS
                     28: #include <curl/curl.h>
                     29: 
                     30: CURLcode curl_easy_setopt(CURL *handle, CURLOPT_TFTP_NO_OPTIONS, long onoff);
                     31: .SH DESCRIPTION
                     32: Set \fIonoff\fP to 1L to exclude all TFTP options defined in RFC2347, RFC2348
                     33: and RFC2349 from read and write requests (RRQs/WRQs).
                     34: 
                     35: This option improves interop with some legacy servers that do not acknowledge
                     36: or properly implement TFTP options. When this option is used
                     37: \fICURLOPT_TFTP_BLKSIZE(3)\fP is ignored.
                     38: .SH DEFAULT
                     39: 0
                     40: .SH PROTOCOLS
                     41: TFTP
                     42: .SH EXAMPLE
                     43: .nf
                     44: size_t write_callback(char *ptr, size_t size, size_t nmemb, void *fp)
                     45: {
                     46:   return fwrite(ptr, size, nmemb, (FILE *)fp);
                     47: }
                     48: 
                     49: CURL *curl = curl_easy_init();
                     50: if(curl) {
                     51:   FILE *fp = fopen("foo.bin", "wb");
                     52:   if(fp) {
                     53:     curl_easy_setopt(curl, CURLOPT_WRITEDATA, (void *)fp);
                     54:     curl_easy_setopt(curl, CURLOPT_WRITEFUNCTION, write_callback);
                     55: 
                     56:     curl_easy_setopt(curl, CURLOPT_URL, "tftp://example.com/foo.bin");
                     57: 
                     58:     /* do not send TFTP options requests */
                     59:     curl_easy_setopt(curl, CURLOPT_TFTP_NO_OPTIONS, 1L);
                     60: 
                     61:     /* Perform the request */
                     62:     curl_easy_perform(curl);
                     63: 
                     64:     fclose(fp);
                     65:   }
                     66:   curl_easy_cleanup(curl);
                     67: }
                     68: .fi
                     69: .SH AVAILABILITY
                     70: Added in 7.48.0
                     71: .SH RETURN VALUE
                     72: Returns CURLE_OK if the option is supported, and CURLE_UNKNOWN_OPTION if not.