Daniel Stenberg e694c8284a

docs/libcurl/opts: clarify the return values

Expand a little.

- mention the type name of the return code
- avoid stating which exact return codes that might be returned, as that
  varies over time, builds and conditions
- avoid stating some always return OK
- refer to the manpage documenting all the return codes

Closes #15900

2025-01-02 17:13:33 +01:00

1.3 KiB

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SPDX-License-Identifier

Title

Section

Source

See-also

Protocol

Added-in

curl

CURLINFO_REQUEST_SIZE

libcurl

CURLINFO_HEADER_SIZE (3)

CURLINFO_SIZE_DOWNLOAD_T (3)

curl_easy_getinfo (3)

curl_easy_setopt (3)

All

7.4.1

NAME

CURLINFO_REQUEST_SIZE - get size of sent request

SYNOPSIS

#include <curl/curl.h>

CURLcode curl_easy_getinfo(CURL *handle, CURLINFO_REQUEST_SIZE, long *sizep);

DESCRIPTION

Pass a pointer to a long to receive the total size of the issued requests. This is so far only for HTTP requests. Note that this may be more than one request if CURLOPT_FOLLOWLOCATION(3) is enabled.

%PROTOCOLS%

EXAMPLE

int main(void)
{
  CURL *curl = curl_easy_init();
  if(curl) {
    CURLcode res;
    curl_easy_setopt(curl, CURLOPT_URL, "https://example.com");
    res = curl_easy_perform(curl);
    if(res == CURLE_OK) {
      long req;
      res = curl_easy_getinfo(curl, CURLINFO_REQUEST_SIZE, &req);
      if(!res)
        printf("Request size: %ld bytes\n", req);
    }
    curl_easy_cleanup(curl);
  }
}

%AVAILABILITY%

RETURN VALUE

curl_easy_getinfo(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).

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