| 1 | =pod
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| 2 |
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| 3 | =head1 NAME
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| 4 |
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| 5 | BIO_hostserv_priorities,
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| 6 | BIO_parse_hostserv
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| 7 | - utility routines to parse a standard host and service string
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| 8 |
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| 9 | =head1 SYNOPSIS
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| 10 |
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| 11 | #include <openssl/bio.h>
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| 12 |
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| 13 | enum BIO_hostserv_priorities {
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| 14 | BIO_PARSE_PRIO_HOST, BIO_PARSE_PRIO_SERV
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| 15 | };
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| 16 | int BIO_parse_hostserv(const char *hostserv, char **host, char **service,
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| 17 | enum BIO_hostserv_priorities hostserv_prio);
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| 18 |
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| 19 | =head1 DESCRIPTION
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| 20 |
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| 21 | BIO_parse_hostserv() will parse the information given in B<hostserv>,
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| 22 | create strings with the hostname and service name and give those
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| 23 | back via B<host> and B<service>. Those will need to be freed after
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| 24 | they are used. B<hostserv_prio> helps determine if B<hostserv> shall
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| 25 | be interpreted primarily as a hostname or a service name in ambiguous
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| 26 | cases.
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| 27 |
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| 28 | The syntax the BIO_parse_hostserv() recognises is:
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| 29 |
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| 30 | host + ':' + service
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| 31 | host + ':' + '*'
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| 32 | host + ':'
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| 33 | ':' + service
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| 34 | '*' + ':' + service
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| 35 | host
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| 36 | service
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| 37 |
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| 38 | The host part can be a name or an IP address. If it's a IPv6
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| 39 | address, it MUST be enclosed in brackets, such as '[::1]'.
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| 40 |
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| 41 | The service part can be a service name or its port number.
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| 42 |
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| 43 | The returned values will depend on the given B<hostserv> string
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| 44 | and B<hostserv_prio>, as follows:
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| 45 |
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| 46 | host + ':' + service => *host = "host", *service = "service"
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| 47 | host + ':' + '*' => *host = "host", *service = NULL
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| 48 | host + ':' => *host = "host", *service = NULL
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| 49 | ':' + service => *host = NULL, *service = "service"
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| 50 | '*' + ':' + service => *host = NULL, *service = "service"
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| 51 |
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| 52 | in case no ':' is present in the string, the result depends on
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| 53 | hostserv_prio, as follows:
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| 54 |
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| 55 | when hostserv_prio == BIO_PARSE_PRIO_HOST
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| 56 | host => *host = "host", *service untouched
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| 57 |
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| 58 | when hostserv_prio == BIO_PARSE_PRIO_SERV
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| 59 | service => *host untouched, *service = "service"
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| 60 |
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| 61 | =head1 RETURN VALUES
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| 62 |
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| 63 | BIO_parse_hostserv() returns 1 on success or 0 on error.
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| 64 |
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| 65 | =head1 SEE ALSO
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| 66 |
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| 67 | L<BIO_ADDRINFO(3)>
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| 68 |
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| 69 | =head1 COPYRIGHT
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| 70 |
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| 71 | Copyright 2016-2020 The OpenSSL Project Authors. All Rights Reserved.
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| 72 |
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| 73 | Licensed under the OpenSSL license (the "License"). You may not use
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| 74 | this file except in compliance with the License. You can obtain a copy
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| 75 | in the file LICENSE in the source distribution or at
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| 76 | L<https://www.openssl.org/source/license.html>.
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| 77 |
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| 78 | =cut
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