1=pod 2 3=head1 NAME 4 5X509_load_http, 6X509_http_nbio, 7X509_CRL_load_http, 8X509_CRL_http_nbio 9- certificate and CRL loading functions 10 11=head1 SYNOPSIS 12 13 #include <openssl/x509.h> 14 15 X509 *X509_load_http(const char *url, BIO *bio, BIO *rbio, int timeout); 16 X509_CRL *X509_CRL_load_http(const char *url, BIO *bio, BIO *rbio, int timeout); 17 18The following macros have been deprecated since OpenSSL 3.0, and can be 19hidden entirely by defining B<OPENSSL_API_COMPAT> with a suitable version value, 20see L<openssl_user_macros(7)>: 21 22 #define X509_http_nbio(rctx, pcert) 23 #define X509_CRL_http_nbio(rctx, pcrl) 24 25=head1 DESCRIPTION 26 27X509_load_http() and X509_CRL_load_http() loads a certificate or a CRL, 28respectively, in ASN.1 format using HTTP from the given B<url>. 29 30If B<bio> is given and B<rbio> is NULL then this BIO is used instead of an 31internal one for connecting, writing the request, and reading the response. 32If both B<bio> and B<rbio> are given (which may be memory BIOs, for instance) 33then no explicit connection is attempted, 34B<bio> is used for writing the request, and B<rbio> for reading the response. 35 36If the B<timeout> parameter is > 0 this indicates the maximum number of seconds 37to wait until the transfer is complete. 38A value of 0 enables waiting indefinitely, 39while a value < 0 immediately leads to a timeout condition. 40 41X509_http_nbio() and X509_CRL_http_nbio() are macros for backward compatibility 42that have the same effect as the functions above but with infinite timeout 43and without the possibility to specify custom BIOs. 44 45=head1 RETURN VALUES 46 47On success the function yield the loaded value, else NULL. 48Error conditions include connection/transfer timeout, parse errors, etc. 49 50=head1 SEE ALSO 51 52L<OSSL_HTTP_get(3)> 53 54=head1 HISTORY 55 56X509_load_http() and X509_CRL_load_http() were added in OpenSSL 3.0. 57X509_http_nbio() and X509_CRL_http_nbio() were deprecated in OpenSSL 3.0. 58 59=head1 COPYRIGHT 60 61Copyright 2019-2021 The OpenSSL Project Authors. All Rights Reserved. 62 63Licensed under the Apache License 2.0 (the "License"). You may not use 64this file except in compliance with the License. You can obtain a copy 65in the file LICENSE in the source distribution or at 66L<https://www.openssl.org/source/license.html>. 67 68=cut 69