86 lines
1.8 KiB
Markdown
86 lines
1.8 KiB
Markdown
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---
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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_INFILESIZE
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Section: 3
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Source: libcurl
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See-also:
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- CURLINFO_CONTENT_LENGTH_UPLOAD_T (3)
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- CURLOPT_INFILESIZE_LARGE (3)
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- CURLOPT_UPLOAD (3)
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---
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# NAME
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CURLOPT_INFILESIZE - size of the input file to send off
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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_INFILESIZE, long filesize);
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~~~
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# DESCRIPTION
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When uploading a file to a remote site, *filesize* should be used to tell
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libcurl what the expected size of the input file is. This value must be passed
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as a long. See also CURLOPT_INFILESIZE_LARGE(3) for sending files larger
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than 2GB.
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For uploading using SCP, this option or CURLOPT_INFILESIZE_LARGE(3) is
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mandatory.
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To unset this value again, set it to -1.
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Using CURLOPT_UPLOAD(3) to an HTTP/1.1 server and this value set to -1, makes
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libcurl do a chunked transfer-encoded upload.
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When sending emails using SMTP, this command can be used to specify the
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optional SIZE parameter for the MAIL FROM command.
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This option does not limit how much data libcurl actually sends, as that is
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controlled entirely by what the read callback returns, but telling one value
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and sending a different amount may lead to errors.
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# DEFAULT
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Unset
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# PROTOCOLS
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Many
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# EXAMPLE
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~~~c
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#define FILE_SIZE 12345L
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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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long uploadsize = FILE_SIZE;
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curl_easy_setopt(curl, CURLOPT_URL,
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"ftp://example.com/destination.tar.gz");
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curl_easy_setopt(curl, CURLOPT_UPLOAD, 1L);
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curl_easy_setopt(curl, CURLOPT_INFILESIZE, uploadsize);
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curl_easy_perform(curl);
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}
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}
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~~~
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# AVAILABILITY
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SMTP support added in 7.23.0
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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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