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other versions
- bullseye-backports 7.88.1-7~bpo11+2
- testing 7.88.1-9
- unstable 7.88.1-10
- experimental 8.0.1-1~exp1
CURLOPT_PREREQDATA(3) | curl_easy_setopt options | CURLOPT_PREREQDATA(3) |
NAME¶
CURLOPT_PREREQDATA - pointer passed to the pre-request callback
SYNOPSIS¶
#include <curl/curl.h> CURLcode curl_easy_setopt(CURL *handle, CURLOPT_PREREQDATA, void *pointer);
DESCRIPTION¶
Pass a pointer that will be untouched by libcurl and passed as the first argument in the pre-request callback set with CURLOPT_PREREQFUNCTION(3).
DEFAULT¶
NULL
PROTOCOLS¶
All
EXAMPLE¶
static int prereq_callback(void *clientp,
char *conn_primary_ip,
char *conn_local_ip,
int conn_primary_port,
int conn_local_port) {
printf("Connection made to %s:%s\n", conn_primary_ip, conn_primary_port);
return CURL_PREREQFUNC_OK; } {
struct data prereq_data;
curl_easy_setopt(CURL *handle, CURLOPT_PREREQFUNCTION, prereq_callback);
curl_easy_setopt(CURL *handle, CURLOPT_PREREQDATA, &prereq_data); }
AVAILABILITY¶
Added in 7.80.0
RETURN VALUE¶
Returns CURLE_OK if the option is supported, and CURLE_UNKNOWN_OPTION if not.
SEE ALSO¶
May 17, 2022 | libcurl 7.87.0 |