.\" generated by cd2nroff 0.1 from CURLOPT_RANDOM_FILE.md .TH CURLOPT_RANDOM_FILE 3 "2024-04-19" libcurl .SH NAME CURLOPT_RANDOM_FILE \- file to read random data from .SH SYNOPSIS .nf #include CURLcode curl_easy_setopt(CURL *handle, CURLOPT_RANDOM_FILE, char *path); .fi .SH 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. .SH DEFAULT NULL, not used .SH PROTOCOLS All TLS based protocols: HTTPS, FTPS, IMAPS, POP3S, SMTPS etc. This option works only with the following TLS backends: OpenSSL .SH EXAMPLE .nf 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); } } .fi .SH AVAILABILITY Only with OpenSSL versions before 1.1.0. This option was deprecated in 7.84.0. .SH RETURN VALUE Returns CURLE_OK on success or CURLE_OUT_OF_MEMORY if there was insufficient heap space. .SH SEE ALSO .BR CURLOPT_EGDSOCKET (3)