how to find out the path for openssl trusted certificate?

Question

how can I find out, where my openssl installed is looking for installed certificates (trusted)? it is sometimes /etc/ssl/cert but I have here a new system and it is not work

Answer 1

This C snippet, compiled against OpenSSL, will tell you:

#include 
#include 
#include 

int main()
{
    const char *dir;

    dir = getenv(X509_get_default_cert_dir_env());

    if (!dir)
        dir = X509_get_default_cert_dir();

    puts(dir);

    return 0;
}