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			89 lines
		
	
	
		
			3.6 KiB
		
	
	
	
		
			Groff
		
	
	
	
	
	
			
		
		
	
	
			89 lines
		
	
	
		
			3.6 KiB
		
	
	
	
		
			Groff
		
	
	
	
	
	
| .\" **************************************************************************
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| .\" *                                  _   _ ____  _
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| .\" *  Project                     ___| | | |  _ \| |
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| .\" *                             / __| | | | |_) | |
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| .\" *                            | (__| |_| |  _ <| |___
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| .\" *                             \___|\___/|_| \_\_____|
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| .\" *
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| .\" * Copyright (C) 1998 - 2017, Daniel Stenberg, <daniel@haxx.se>, et al.
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| .\" *
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| .\" * This software is licensed as described in the file COPYING, which
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| .\" * you should have received as part of this distribution. The terms
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| .\" * are also available at https://curl.haxx.se/docs/copyright.html.
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| .\" *
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| .\" * You may opt to use, copy, modify, merge, publish, distribute and/or sell
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| .\" * copies of the Software, and permit persons to whom the Software is
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| .\" * furnished to do so, under the terms of the COPYING file.
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| .\" *
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| .\" * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
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| .\" * KIND, either express or implied.
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| .\" *
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| .\" **************************************************************************
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| .\"
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| .TH CURLOPT_POSTFIELDS 3 "17 Jun 2014" "libcurl 7.37.0" "curl_easy_setopt options"
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| .SH NAME
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| CURLOPT_POSTFIELDS \- specify data to POST to server
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| .SH SYNOPSIS
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| #include <curl/curl.h>
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| 
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| CURLcode curl_easy_setopt(CURL *handle, CURLOPT_POSTFIELDS, char *postdata);
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| .SH DESCRIPTION
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| Pass a char * as parameter, pointing to the full data to send in a HTTP POST
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| operation. You must make sure that the data is formatted the way you want the
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| server to receive it. libcurl will not convert or encode it for you in any
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| way. For example, the web server may assume that this data is url-encoded.
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| 
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| The data pointed to is NOT copied by the library: as a consequence, it must be
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| preserved by the calling application until the associated transfer finishes.
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| This behaviour can be changed (so libcurl does copy the data) by setting the
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| \fICURLOPT_COPYPOSTFIELDS(3)\fP option.
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| 
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| This POST is a normal application/x-www-form-urlencoded kind (and libcurl will
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| set that Content-Type by default when this option is used), which is commonly
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| used by HTML forms. Change Content-Type with \fICURLOPT_HTTPHEADER(3)\fP.
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| 
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| You can use \fIcurl_easy_escape(3)\fP to url-encode your data, if necessary. It
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| returns a pointer to an encoded string that can be passed as \fIpostdata\fP.
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| 
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| Using \fICURLOPT_POSTFIELDS(3)\fP implies \fICURLOPT_POST(3)\fP.
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| 
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| If \fICURLOPT_POSTFIELDS(3)\fP is explicitly set to NULL then libcurl will get
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| the POST data from the read callback. If you want to send a zero-byte POST set
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| \fICURLOPT_POSTFIELDS(3)\fP to an empty string, or set \fICURLOPT_POST(3)\fP to
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| 1 and \fICURLOPT_POSTFIELDSIZE(3)\fP to 0.
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| 
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| Using POST with HTTP 1.1 implies the use of a "Expect: 100-continue" header,
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| and libcurl will add that header automatically if the POST is either known to
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| be larger than 1024 bytes or if the expected size is unknown. You can disable
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| this header with \fICURLOPT_HTTPHEADER(3)\fP as usual.
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| 
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| To make multipart/formdata posts (aka RFC2388-posts), check out the
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| \fICURLOPT_HTTPPOST(3)\fP option combined with \fIcurl_formadd(3)\fP.
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| .SH DEFAULT
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| NULL
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| .SH PROTOCOLS
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| HTTP
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| .SH EXAMPLE
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| .nf
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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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| 
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|   curl_easy_setopt(curl, CURLOPT_URL, "http://example.com");
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| 
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|   /* size of the POST data */
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|   curl_easy_setopt(curl, CURLOPT_POSTFIELDSIZE, 12L);
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| 
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|   /* pass in a pointer to the data - libcurl will not copy */
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|   curl_easy_setopt(curl, CURLOPT_POSTFIELDS, data);
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| 
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|   curl_easy_perform(curl);
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| }
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| .fi
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| .SH AVAILABILITY
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| Always
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| .SH RETURN VALUE
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| Returns CURLE_OK
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| .SH "SEE ALSO"
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| .BR CURLOPT_POSTFIELDSIZE "(3), " CURLOPT_READFUNCTION "(3), "
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