CURLOPT_POSTFIELDSIZE(3)

1CURLOPT_POSTFIELDSIZE(3)            libcurl           CURLOPT_POSTFIELDSIZE(3)
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NAME

6       CURLOPT_POSTFIELDSIZE - size of POST data pointed to
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SYNOPSIS

9       #include <curl/curl.h>
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11       CURLcode curl_easy_setopt(CURL *handle, CURLOPT_POSTFIELDSIZE, long size);
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DESCRIPTION

14       If you want to post static data to the server without having libcurl do
15       a strlen() to measure the data size, this option  must  be  used.  When
16       this  option is used you can post fully binary data, which otherwise is
17       likely to fail. If this size  is  set  to  -1,  the  library  will  use
18       strlen()  to get the size or rely on the CURLOPT_READFUNCTION (if used)
19       to signal the end of data.
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21       If you post more than 2GB, use CURLOPT_POSTFIELDSIZE_LARGE(3).
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DEFAULT

24       -1
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PROTOCOLS

27       HTTP
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EXAMPLE

30       CURL *curl = curl_easy_init();
31       if(curl) {
32         const char *data = "data to send";
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34         curl_easy_setopt(curl, CURLOPT_URL, "https://example.com");
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36         /* size of the POST data */
37         curl_easy_setopt(curl, CURLOPT_POSTFIELDSIZE, (long) strlen(data));
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39         curl_easy_setopt(curl, CURLOPT_POSTFIELDS, data);
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41         curl_easy_perform(curl);
42       }
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AVAILABILITY

45       Along with HTTP
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RETURN VALUE

48       Returns CURLE_OK if HTTP is supported, and CURLE_UNKNOWN_OPTION if not.
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