CURLOPT_POSTFIELDSIZE_LARGE(3) Library Functions Manual
NAME
CURLOPT_POSTFIELDSIZE_LARGE - size of POST data pointed to
SYNOPSIS
#include <curl/curl.h>
CURLcode curl_easy_setopt(CURL *handle, CURLOPT_POSTFIELDSIZE_LARGE,
curl_off_t size);
DESCRIPTION
If you want to post static data to the server without having libcurl do
a strlen() to measure the data size, this option must be used. When
this option is used you can post fully binary data, which otherwise is
likely to fail. If this size is set to -1, libcurl uses strlen() to get
the size or relies on the CURLOPT_READFUNCTION(3) (if used) to signal
the end of data.
DEFAULT
-1
PROTOCOLS
This functionality affects http only
EXAMPLE
extern char *large_chunk; /* pointer to somewhere */
int main(void)
{
CURL *curl = curl_easy_init();
if(curl) {
const char *data = large_chunk;
curl_off_t length_of_data; /* set somehow */
curl_easy_setopt(curl, CURLOPT_URL, "https://example.com");
/* size of the POST data */
curl_easy_setopt(curl, CURLOPT_POSTFIELDSIZE_LARGE, length_of_data);
curl_easy_setopt(curl, CURLOPT_POSTFIELDS, data);
curl_easy_perform(curl);
}
}
AVAILABILITY
Added in curl 7.11.1
RETURN VALUE
curl_easy_setopt(3) returns a CURLcode indicating success or error.
CURLE_OK (0) means everything was OK, non-zero means an error occurred,
see libcurl-errors(3).
SEE ALSO
CURLOPT_COPYPOSTFIELDS(3), CURLOPT_POSTFIELDS(3),
CURLOPT_POSTFIELDSIZE(3)
libcurl 2025-02-08 CURLOPT_POSTFIELDSIZE_LARGE(3)
curl 8.12.0 - Generated Mon Feb 17 18:14:53 CST 2025