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54ded66618
- always assign the curl_easy_perform() return code (and declare the necessary 'result' variable for it) - always call curl_easy_cleanup() on the created easy handles Closes #21364
81 lines
1.7 KiB
Markdown
81 lines
1.7 KiB
Markdown
---
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c: Copyright (C) Daniel Stenberg, <daniel@haxx.se>, et al.
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SPDX-License-Identifier: curl
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Title: CURLOPT_TFTP_NO_OPTIONS
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Section: 3
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Source: libcurl
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See-also:
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- CURLOPT_TFTP_BLKSIZE (3)
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Protocol:
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- TFTP
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Added-in: 7.48.0
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---
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# NAME
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CURLOPT_TFTP_NO_OPTIONS - send no TFTP options requests
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# SYNOPSIS
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~~~c
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#include <curl/curl.h>
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CURLcode curl_easy_setopt(CURL *handle, CURLOPT_TFTP_NO_OPTIONS, long onoff);
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~~~
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# DESCRIPTION
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Set *onoff* to 1L to exclude all TFTP options defined in RFC 2347,
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RFC 2348 and RFC 2349 from read and write requests.
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This option improves interoperability with legacy servers that do not
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acknowledge or properly implement TFTP options. When this option is used
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CURLOPT_TFTP_BLKSIZE(3) is ignored.
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# DEFAULT
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0
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# %PROTOCOLS%
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# EXAMPLE
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~~~c
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size_t write_callback(char *ptr, size_t size, size_t nmemb, void *fp)
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{
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return fwrite(ptr, size, nmemb, (FILE *)fp);
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}
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int main(void)
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{
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CURL *curl = curl_easy_init();
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if(curl) {
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CURLcode result = CURLE_OK;
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FILE *fp = fopen("foo.bin", "wb");
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if(fp) {
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curl_easy_setopt(curl, CURLOPT_WRITEDATA, (void *)fp);
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curl_easy_setopt(curl, CURLOPT_WRITEFUNCTION, write_callback);
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curl_easy_setopt(curl, CURLOPT_URL, "tftp://example.com/foo.bin");
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/* do not send TFTP options requests */
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curl_easy_setopt(curl, CURLOPT_TFTP_NO_OPTIONS, 1L);
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/* Perform the request */
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result = curl_easy_perform(curl);
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fclose(fp);
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}
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curl_easy_cleanup(curl);
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}
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}
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~~~
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# %AVAILABILITY%
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# RETURN VALUE
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curl_easy_setopt(3) returns a CURLcode indicating success or error.
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CURLE_OK (0) means everything was OK, non-zero means an error occurred, see
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libcurl-errors(3).
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