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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
77 lines
1.9 KiB
Markdown
77 lines
1.9 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_COPYPOSTFIELDS
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Section: 3
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Source: libcurl
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See-also:
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- CURLOPT_MIMEPOST (3)
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- CURLOPT_POSTFIELDS (3)
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- CURLOPT_POSTFIELDSIZE (3)
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- CURLOPT_UPLOAD (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_COPYPOSTFIELDS - have libcurl copy data to POST
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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_COPYPOSTFIELDS, char *data);
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~~~
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# DESCRIPTION
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Pass a char pointer as parameter, which should be the full *data* to post in a
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HTTP POST operation. It behaves as the CURLOPT_POSTFIELDS(3) option, but the
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original data is instead copied by the library, allowing the application to
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overwrite the original data after setting this option.
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Because data are copied, care must be taken when using this option in
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conjunction with CURLOPT_POSTFIELDSIZE(3) or
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CURLOPT_POSTFIELDSIZE_LARGE(3): If the size has not been set prior to
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CURLOPT_COPYPOSTFIELDS(3), the data is assumed to be a null-terminated
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string; else the stored size informs the library about the byte count to
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copy. In any case, the size must not be changed after
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CURLOPT_COPYPOSTFIELDS(3), unless another CURLOPT_POSTFIELDS(3) or
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CURLOPT_COPYPOSTFIELDS(3) option is issued.
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# DEFAULT
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NULL
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# EXAMPLE
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~~~c
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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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char local_buffer[1024]="data to send";
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curl_easy_setopt(curl, CURLOPT_URL, "https://example.com");
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/* size of the data to copy from the buffer and send in the request */
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curl_easy_setopt(curl, CURLOPT_POSTFIELDSIZE, 12L);
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/* send data from the local stack */
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curl_easy_setopt(curl, CURLOPT_COPYPOSTFIELDS, local_buffer);
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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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Added in 7.17.1
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# RETURN VALUE
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Returns CURLE_OK if the option is supported, CURLE_UNKNOWN_OPTION if not, or
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CURLE_OUT_OF_MEMORY if there was insufficient heap space.
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