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3 * (Royal Institute of Technology, Stockholm, Sweden).
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34 #include "krb5_locl.h"
38 static krb5_error_code
39 copy_hostname(krb5_context context
,
40 const char *orig_hostname
,
43 *new_hostname
= strdup (orig_hostname
);
44 if (*new_hostname
== NULL
)
46 strlwr (*new_hostname
);
51 * Try to make `orig_hostname' into a more canonical one in the newly
52 * allocated space returned in `new_hostname'.
56 krb5_expand_hostname (krb5_context context
,
57 const char *orig_hostname
,
60 struct addrinfo
*ai
, *a
, hints
;
63 memset (&hints
, 0, sizeof(hints
));
64 hints
.ai_flags
= AI_CANONNAME
;
66 error
= getaddrinfo (orig_hostname
, NULL
, &hints
, &ai
);
68 return copy_hostname (context
, orig_hostname
, new_hostname
);
69 for (a
= ai
; a
!= NULL
; a
= a
->ai_next
) {
70 if (a
->ai_canonname
!= NULL
) {
71 *new_hostname
= strdup (a
->ai_canonname
);
73 if (*new_hostname
== NULL
)
80 return copy_hostname (context
, orig_hostname
, new_hostname
);
84 * expand `hostname' to a name we believe to be a hostname in newly
85 * allocated space in `host' and return realms in `realms'.
89 krb5_expand_hostname_realms (krb5_context context
,
90 const char *orig_hostname
,
94 struct addrinfo
*ai
, *a
, hints
;
96 krb5_error_code ret
= 0;
98 memset (&hints
, 0, sizeof(hints
));
99 hints
.ai_flags
= AI_CANONNAME
;
101 error
= getaddrinfo (orig_hostname
, NULL
, &hints
, &ai
);
103 return copy_hostname (context
, orig_hostname
, new_hostname
);
104 for (a
= ai
; a
!= NULL
; a
= a
->ai_next
) {
105 if (a
->ai_canonname
!= NULL
) {
106 ret
= copy_hostname (context
, orig_hostname
, new_hostname
);
109 strlwr (*new_hostname
);
110 ret
= krb5_get_host_realm (context
, *new_hostname
, realms
);
113 free (*new_hostname
);
116 ret
= copy_hostname (context
, orig_hostname
, new_hostname
);