BIO_parse_hostserv.pod
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=pod
=head1 NAME
BIO_hostserv_priorities,
BIO_parse_hostserv
- utility routines to parse a standard host and service string
=head1 SYNOPSIS
#include <openssl/bio.h>
enum BIO_hostserv_priorities {
BIO_PARSE_PRIO_HOST, BIO_PARSE_PRIO_SERV
};
int BIO_parse_hostserv(const char *hostserv, char **host, char **service,
enum BIO_hostserv_priorities hostserv_prio);
=head1 DESCRIPTION
BIO_parse_hostserv() will parse the information given in B<hostserv>,
create strings with the host name and service name and give those
back via B<host> and B<service>. Those will need to be freed after
they are used. B<hostserv_prio> helps determine if B<hostserv> shall
be interpreted primarily as a host name or a service name in ambiguous
cases.
The syntax the BIO_parse_hostserv() recognises is:
host + ':' + service
host + ':' + '*'
host + ':'
':' + service
'*' + ':' + service
host
service
The host part can be a name or an IP address. If it's a IPv6
address, it MUST be enclosed in brackets, such as '[::1]'.
The service part can be a service name or its port number.
The returned values will depend on the given B<hostserv> string
and B<hostserv_prio>, as follows:
host + ':' + service => *host = "host", *service = "service"
host + ':' + '*' => *host = "host", *service = NULL
host + ':' => *host = "host", *service = NULL
':' + service => *host = NULL, *service = "service"
'*' + ':' + service => *host = NULL, *service = "service"
in case no ':' is present in the string, the result depends on
hostserv_prio, as follows:
when hostserv_prio == BIO_PARSE_PRIO_HOST
host => *host = "host", *service untouched
when hostserv_prio == BIO_PARSE_PRIO_SERV
service => *host untouched, *service = "service"
=head1 RETURN VALUES
BIO_parse_hostserv() returns 1 on success or 0 on error.
=head1 SEE ALSO
L<BIO_ADDRINFO(3)>
=head1 COPYRIGHT
Copyright 2016-2018 The OpenSSL Project Authors. All Rights Reserved.
Licensed under the OpenSSL license (the "License"). You may not use
this file except in compliance with the License. You can obtain a copy
in the file LICENSE in the source distribution or at
L<https://www.openssl.org/source/license.html>.
=cut