curl/docs/libcurl/opts/CURLOPT_RANDOM_FILE.md

---

c: Copyright (C) Daniel Stenberg, daniel@haxx.se, et al. SPDX-License-Identifier: curl Title: CURLOPT_RANDOM_FILE Section: 3 Source: libcurl See-also:

• CURLOPT_EGDSOCKET (3) Protocol:
• TLS TLS-backend:
• OpenSSL ---

NAME

CURLOPT_RANDOM_FILE - file to read random data from

SYNOPSIS

#include <curl/curl.h>

CURLcode curl_easy_setopt(CURL *handle, CURLOPT_RANDOM_FILE, char *path);

DESCRIPTION

Deprecated option. It serves no purpose anymore.

Pass a char pointer to a null-terminated filename. The file might be used to read from to seed the random engine for SSL and more.

The application does not have to keep the string around after setting this option.

DEFAULT

NULL, not used

EXAMPLE

int main(void)
{
  CURL *curl = curl_easy_init();
  if(curl) {
    CURLcode res;
    curl_easy_setopt(curl, CURLOPT_URL, "https://example.com/");
    curl_easy_setopt(curl, CURLOPT_RANDOM_FILE, "junk.txt");
    res = curl_easy_perform(curl);
    curl_easy_cleanup(curl);
  }
}

AVAILABILITY

Only with OpenSSL versions before 1.1.0.

This option was deprecated in 7.84.0.

RETURN VALUE

Returns CURLE_OK on success or CURLE_OUT_OF_MEMORY if there was insufficient heap space.