79 lines
1.9 KiB
Markdown
79 lines
1.9 KiB
Markdown
---
|
|
c: Copyright (C) Daniel Stenberg, <daniel.se>, et al.
|
|
SPDX-License-Identifier: curl
|
|
Title: CURLOPT_COPYPOSTFIELDS
|
|
Section: 3
|
|
Source: libcurl
|
|
See-also:
|
|
- CURLOPT_MIMEPOST (3)
|
|
- CURLOPT_POSTFIELDS (3)
|
|
- CURLOPT_POSTFIELDSIZE (3)
|
|
- CURLOPT_UPLOAD (3)
|
|
---
|
|
|
|
# NAME
|
|
|
|
CURLOPT_COPYPOSTFIELDS - have libcurl copy data to POST
|
|
|
|
# SYNOPSIS
|
|
|
|
~~~c
|
|
#include <curl/curl.h>
|
|
|
|
CURLcode curl_easy_setopt(CURL *handle, CURLOPT_COPYPOSTFIELDS, char *data);
|
|
~~~
|
|
|
|
# DESCRIPTION
|
|
|
|
Pass a char pointer 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_POSTFIELDSIZE_LARGE(3): If the size has not been set prior to
|
|
CURLOPT_COPYPOSTFIELDS(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
|
|
|
|
~~~c
|
|
int main(void)
|
|
{
|
|
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.
|