curl/docs/libcurl/opts/CURLOPT_TFTP_NO_OPTIONS.3
Jay Satiro 186546f1c5 TFTP: add option to suppress TFTP option requests (Part 2)
- Add tests.

- Add an example to CURLOPT_TFTP_NO_OPTIONS.3.

- Add --tftp-no-options to expose CURLOPT_TFTP_NO_OPTIONS.

Bug: https://github.com/curl/curl/issues/481
2016-02-23 03:01:07 -05:00

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2.4 KiB
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.TH CURLOPT_TFTP_NO_OPTIONS 3 "23 Feb 2016" "libcurl 7.48.0" "curl_easy_setopt options"
.SH NAME
CURLOPT_TFTP_NO_OPTIONS \- Do not send TFTP options requests.
.SH SYNOPSIS
#include <curl/curl.h>
CURLcode curl_easy_setopt(CURL *handle, CURLOPT_TFTP_NO_OPTIONS, long onoff);
.SH DESCRIPTION
Set \fIonoff\fP 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
\fICURLOPT_TFTP_BLKSIZE(3)\fP is ignored.
.SH DEFAULT
0
.SH PROTOCOLS
TFTP
.SH EXAMPLE
.nf
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);
}
.fi
.SH AVAILABILITY
Added in 7.48.0
.SH RETURN VALUE
Returns CURLE_OK if the option is supported, and CURLE_UNKNOWN_OPTION if not.