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e3fe020089
Remove the PROTOCOLS section from the source files completely and instead generate them based on the header data in the curldown files. It also generates TLS backend information for options marked for TLS as protocol. Closes #13175
69 lines
1.4 KiB
Markdown
69 lines
1.4 KiB
Markdown
---
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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_POSTFIELDSIZE
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Section: 3
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Source: libcurl
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See-also:
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- CURLOPT_POSTFIELDS (3)
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- CURLOPT_POSTFIELDSIZE_LARGE (3)
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Protocol:
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- HTTP
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---
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# NAME
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CURLOPT_POSTFIELDSIZE - size of POST data pointed to
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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_POSTFIELDSIZE, long size);
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~~~
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# DESCRIPTION
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If you want to post static data to the server without having libcurl do a
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strlen() to measure the data size, this option must be used. When this option
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is used you can post fully binary data, which otherwise is likely to fail. If
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this size is set to -1, libcurl uses strlen() to get the size or relies on the
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CURLOPT_READFUNCTION(3) (if used) to signal the end of data.
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If you post more than 2GB, use CURLOPT_POSTFIELDSIZE_LARGE(3).
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# DEFAULT
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-1
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# EXAMPLE
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~~~c
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#include <string.h> /* for strlen */
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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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const char *data = "data to send";
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curl_easy_setopt(curl, CURLOPT_URL, "https://example.com");
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/* size of the POST data */
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curl_easy_setopt(curl, CURLOPT_POSTFIELDSIZE, (long) strlen(data));
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curl_easy_setopt(curl, CURLOPT_POSTFIELDS, data);
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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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Along with HTTP
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# RETURN VALUE
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Returns CURLE_OK if HTTP is supported, and CURLE_UNKNOWN_OPTION if not.
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