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37 .Dt KRB5_SET_DEFAULT_REALM 3
40 .Nm krb5_copy_host_realm ,
41 .Nm krb5_free_host_realm ,
42 .Nm krb5_get_default_realm ,
43 .Nm krb5_get_default_realms ,
44 .Nm krb5_get_host_realm ,
45 .Nm krb5_set_default_realm
46 .Nd default and host realm read and manipulation routines
48 Kerberos 5 Library (libkrb5, -lkrb5)
52 .Fo krb5_copy_host_realm
53 .Fa "krb5_context context"
54 .Fa "const krb5_realm *from"
58 .Fo krb5_free_host_realm
59 .Fa "krb5_context context"
60 .Fa "krb5_realm *realmlist"
63 .Fo krb5_get_default_realm
64 .Fa "krb5_context context"
65 .Fa "krb5_realm *realm"
68 .Fo krb5_get_default_realms
69 .Fa "krb5_context context"
70 .Fa "krb5_realm **realm"
73 .Fo krb5_get_host_realm
74 .Fa "krb5_context context"
75 .Fa "const char *host"
76 .Fa "krb5_realm **realms"
79 .Fo krb5_set_default_realm
80 .Fa "krb5_context context"
81 .Fa "const char *realm"
84 .Fn krb5_copy_host_realm
85 copies the list of realms from
90 should be freed by the caller using
91 .Fa krb5_free_host_realm .
93 .Fn krb5_free_host_realm
94 frees all memory allocated by
97 .Fn krb5_get_default_realm
98 returns the first default realm for this host.
99 The realm returned should be freed with
102 .Fn krb5_get_default_realms
105 terminated list of default realms for this context.
107 .Fn krb5_get_default_realms
109 .Fn krb5_free_host_realm .
111 .Fn krb5_get_host_realm
114 terminated list of realms for
116 by looking up the information in the
124 results in the string
126 DNS is used to lookup the realm.
130 to a resolve the domain for the host a.b.c,
131 .Fn krb5_get_host_realm
134 resource record named
135 .Li _kerberos.a.b.c ,
136 and if not found, it strips off the first component and tries a again
137 (_kerberos.b.c) until it reaches the root.
139 If there is no configuration or DNS information found,
140 .Fn krb5_get_host_realm
141 assumes it can use the domain part of the
147 .Fn krb5_free_host_realm .
149 .Fn krb5_set_default_realm
150 sets the default realm for the
157 .Li [libdefaults]default_realm
161 If there is no such stanza in the configuration file, the
162 .Fn krb5_get_host_realm
163 function is used to form a default realm.