06-28-2013
I just did a test (on HPUX) and "wc -c" does read the whole file. Shame.
I'll keep using Robins syntax :
ls -l | read _ _ _ _ filesize _
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LEARN ABOUT MOJAVE
curlopt_infilesize
CURLOPT_INFILESIZE(3) curl_easy_setopt options CURLOPT_INFILESIZE(3)
NAME
CURLOPT_INFILESIZE - set size of the input file to send off
SYNOPSIS
#include <curl/curl.h>
CURLcode curl_easy_setopt(CURL *handle, CURLOPT_INFILESIZE, long filesize);
DESCRIPTION
When uploading a file to a remote site, filesize should be used to tell libcurl what the expected size of the input file is. This value
must be passed as a long. See also CURLOPT_INFILESIZE_LARGE(3) for sending files larger than 2GB.
For uploading using SCP, this option or CURLOPT_INFILESIZE_LARGE(3) is mandatory.
To unset this value again, set it to -1.
When sending emails using SMTP, this command can be used to specify the optional SIZE parameter for the MAIL FROM command.
This option does not limit how much data libcurl will actually send, as that is controlled entirely by what the read callback returns, but
telling one value and sending a different amount may lead to errors.
DEFAULT
Unset
PROTOCOLS
Many
EXAMPLE
CURL *curl = curl_easy_init();
if(curl) {
long uploadsize = FILE_SIZE;
curl_easy_setopt(curl, CURLOPT_URL, "ftp://example.com/destination.tar.gz");
curl_easy_setopt(curl, CURLOPT_UPLOAD, 1L);
curl_easy_setopt(curl, CURLOPT_INFILESIZE, uploadsize);
curl_easy_perform(curl);
}
AVAILABILITY
SMTP support added in 7.23.0
RETURN VALUE
Returns CURLE_OK if the option is supported, and CURLE_UNKNOWN_OPTION if not.
SEE ALSO
CURLOPT_INFILESIZE_LARGE(3), CURLOPT_UPLOAD(3),
libcurl 7.54.0 February 03, 2016 CURLOPT_INFILESIZE(3)