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Refactoring BIO: add wrappers around sockaddr et al
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1=pod
2
3=head1 NAME
4
5BIO_parse_hostserv - utility routines to parse a standard host and service
6string
7
8=head1 SYNOPSIS
9
10 #include <openssl/bio.h>
11
12 enum BIO_hostserv_priorities {
13 BIO_PARSE_PRIO_HOST, BIO_PARSE_PRIO_SERV
14 };
15 int BIO_parse_hostserv(const char *hostserv, char **host, char **service,
16 enum BIO_hostserv_priorities hostserv_prio);
17
18=head1 DESCRIPTION
19
20BIO_parse_hostserv() will parse the information given in B<hostserv>,
21create strings with the host name and service name and give those
22back via B<host> and B<service>. Those will need to be freed after
23they are used. B<hostserv_prio> helps determine if B<hostserv> shall
24be interpreted primarly as a host name or a service name in ambiguous
25cases.
26
27The syntax the BIO_parse_hostserv() recognises is:
28
29 host + ':' + service
30 host + ':' + '*'
31 host + ':'
32 ':' + service
33 '*' + ':' + service
34 host
35 service
36
37The host part can be a name or an IP address. If it's a IPv6
38address, it MUST be enclosed in brackets, such as '[::1]'.
39
40The service part can be a service name or its port number.
41
42The returned values will depend on the given B<hostserv> string
43and B<hostserv_prio>, as follows:
44
45 host + ':' + service => *host = "host", *service = "service"
46 host + ':' + '*' => *host = "host", *service = NULL
47 host + ':' => *host = "host", *service = NULL
48 ':' + service => *host = NULL, *service = "service"
49 '*' + ':' + service => *host = NULL, *service = "service"
50
51 in case no ':' is present in the string, the result depends on
52 hostserv_prio, as follows:
53
54 when hostserv_prio == BIO_PARSE_PRIO_HOST
55 host => *host = "host", *service untouched
56
57 when hostserv_prio == BIO_PARSE_PRIO_SERV
58 service => *host untouched, *service = "service"
59
60=head1 SEE ALSO
61
62L<BIO_ADDRINFO(3)>