CURLOPT_COPYPOSTFIELDS - have libcurl copy data to POST
#include <curl/curl.h> CURLcode curl_easy_setopt(CURL *handle, CURLOPT_COPYPOSTFIELDS, char *data);
CURLOPT_COPYPOSTFIELDS(3) curl_easy_setopt options CURLOPT_COPYPOSTFIELDS(3)
NAME
CURLOPT_COPYPOSTFIELDS - have libcurl copy data to POST
SYNOPSIS
#include <curl/curl.h>
CURLcode curl_easy_setopt(CURL *handle, CURLOPT_COPYPOSTFIELDS, char *data);
DESCRIPTION
Pass a char * as parameter, which should be the full data to post in a
HTTP POST operation. It behaves as the CURLOPT_POSTFIELDS(3) option,
but the original data is instead copied by the library, allowing the
application to overwrite the original data after setting this option.
Because data are copied, care must be taken when using this option in
conjunction with CURLOPT_POSTFIELDSIZE(3) or CURLOPT_POSTFIELD-
SIZE_LARGE(3): If the size has not been set prior to CURLOPT_COPYPOST-
FIELDS(3), the data is assumed to be a null-terminated string; else the
stored size informs the library about the byte count to copy. In any
case, the size must not be changed after CURLOPT_COPYPOSTFIELDS(3),
unless another CURLOPT_POSTFIELDS(3) or CURLOPT_COPYPOSTFIELDS(3)
option is issued.
DEFAULT
NULL
PROTOCOLS
HTTP(S)
EXAMPLE
CURL *curl = curl_easy_init();
if(curl) {
char local_buffer[1024]="data to send";
curl_easy_setopt(curl, CURLOPT_URL, "https://example.com");
/* size of the data to copy from the buffer and send in the request */
curl_easy_setopt(curl, CURLOPT_POSTFIELDSIZE, 12L);
/* send data from the local stack */
curl_easy_setopt(curl, CURLOPT_COPYPOSTFIELDS, local_buffer);
curl_easy_perform(curl);
}
AVAILABILITY
Added in 7.17.1
RETURN VALUE
Returns CURLE_OK if the option is supported, CURLE_UNKNOWN_OPTION if
not, or CURLE_OUT_OF_MEMORY if there was insufficient heap space.
ATTRIBUTES
See attributes(7) for descriptions of the following attributes:
+---------------+------------------+
|ATTRIBUTE TYPE | ATTRIBUTE VALUE |
+---------------+------------------+
|Availability | web/curl |
+---------------+------------------+
|Stability | Uncommitted |
+---------------+------------------+
SEE ALSO
CURLOPT_POSTFIELDS(3), CURLOPT_POSTFIELDSIZE(3),
NOTES
Source code for open source software components in Oracle Solaris can
be found at https://www.oracle.com/downloads/opensource/solaris-source-
code-downloads.html.
This software was built from source available at
https://github.com/oracle/solaris-userland. The original community
source was downloaded from https://curl.se/down-
load/curl-7.83.1.tar.bz2.
Further information about this software can be found on the open source
community website at http://curl.haxx.se/.
libcurl 7.83.1 November 26, 2021 CURLOPT_COPYPOSTFIELDS(3)