2024-03-15 20:55:33 -06:00
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.\" generated by cd2nroff 0.1 from CURLOPT_COPYPOSTFIELDS.md
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2024-06-01 14:49:19 -06:00
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.TH CURLOPT_COPYPOSTFIELDS 3 "2024-06-01" libcurl
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2024-03-15 20:55:33 -06:00
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.SH NAME
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CURLOPT_COPYPOSTFIELDS \- have libcurl copy data to POST
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.SH SYNOPSIS
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.nf
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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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.fi
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.SH DESCRIPTION
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Pass a char pointer as parameter, which should be the full \fIdata\fP to post in a
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HTTP POST operation. It behaves as the \fICURLOPT_POSTFIELDS(3)\fP 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 \fICURLOPT_POSTFIELDSIZE(3)\fP or
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\fICURLOPT_POSTFIELDSIZE_LARGE(3)\fP: If the size has not been set prior to
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\fICURLOPT_COPYPOSTFIELDS(3)\fP, 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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\fICURLOPT_COPYPOSTFIELDS(3)\fP, unless another \fICURLOPT_POSTFIELDS(3)\fP or
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\fICURLOPT_COPYPOSTFIELDS(3)\fP option is issued.
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.SH DEFAULT
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NULL
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.SH PROTOCOLS
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2024-03-30 12:28:04 -06:00
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HTTP
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2024-03-15 20:55:33 -06:00
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.SH EXAMPLE
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.nf
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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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.fi
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.SH AVAILABILITY
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Added in 7.17.1
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.SH 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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.SH SEE ALSO
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.BR CURLOPT_MIMEPOST (3),
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.BR CURLOPT_POSTFIELDS (3),
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.BR CURLOPT_POSTFIELDSIZE (3),
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.BR CURLOPT_UPLOAD (3)
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