5 BIO_parse_hostserv - utility routines to parse a standard host and service
10 #include <openssl/bio.h>
12 enum BIO_hostserv_priorities {
13 BIO_PARSE_PRIO_HOST, BIO_PARSE_PRIO_SERV
15 int BIO_parse_hostserv(const char *hostserv, char **host, char **service,
16 enum BIO_hostserv_priorities hostserv_prio);
20 BIO_parse_hostserv() will parse the information given in B<hostserv>,
21 create strings with the host name and service name and give those
22 back via B<host> and B<service>. Those will need to be freed after
23 they are used. B<hostserv_prio> helps determine if B<hostserv> shall
24 be interpreted primarly as a host name or a service name in ambiguous
27 The syntax the BIO_parse_hostserv() recognises is:
37 The host part can be a name or an IP address. If it's a IPv6
38 address, it MUST be enclosed in brackets, such as '[::1]'.
40 The service part can be a service name or its port number.
42 The returned values will depend on the given B<hostserv> string
43 and B<hostserv_prio>, as follows:
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"
51 in case no ':' is present in the string, the result depends on
52 hostserv_prio, as follows:
54 when hostserv_prio == BIO_PARSE_PRIO_HOST
55 host => *host = "host", *service untouched
57 when hostserv_prio == BIO_PARSE_PRIO_SERV
58 service => *host untouched, *service = "service"