64 lines
1.2 KiB
Markdown
64 lines
1.2 KiB
Markdown
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c: Copyright (C) Daniel Stenberg, <daniel.se>, et al.
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SPDX-License-Identifier: curl
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Title: CURLOPT_TFTP_BLKSIZE
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Section: 3
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Source: libcurl
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See-also:
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- CURLOPT_MAXFILESIZE (3)
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---
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# NAME
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CURLOPT_TFTP_BLKSIZE - TFTP block size
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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_BLKSIZE, long blocksize);
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~~~
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# DESCRIPTION
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Specify *blocksize* to use for TFTP data transmission. Valid range as per
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RFC 2348 is 8-65464 bytes. The default of 512 bytes is used if this option is
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not specified. The specified block size is only used if supported by the
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remote server. If the server does not return an option acknowledgment or
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returns an option acknowledgment with no block size, the default of 512 bytes
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is used.
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# DEFAULT
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512
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# PROTOCOLS
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TFTP
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# EXAMPLE
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~~~c
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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 res;
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curl_easy_setopt(curl, CURLOPT_URL, "tftp://example.com/bootimage");
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/* try using larger blocks */
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curl_easy_setopt(curl, CURLOPT_TFTP_BLKSIZE, 2048L);
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res = curl_easy_perform(curl);
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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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Added in 7.19.4
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# RETURN VALUE
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Returns CURLE_OK if the option is supported, and CURLE_UNKNOWN_OPTION if not.
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