2 * Copyright (c) 1997 - 2001 Kungliga Tekniska Högskolan
3 * (Royal Institute of Technology, Stockholm, Sweden).
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34 #include "krb5_locl.h"
37 * Try to find out what's a reasonable default principal.
40 KRB5_LIB_FUNCTION krb5_error_code KRB5_LIB_CALL
41 _krb5_get_default_principal_local (krb5_context context
,
42 krb5_principal
*princ
)
44 const char *user
= NULL
;
45 const char *second_component
= NULL
;
51 * NOTE: We prefer getlogin_r() (via roken_get_loginname()) to using $USER,
52 * $LOGNAME, or getpwuid_r() (via roken_get_username()), in that
53 * order, otherwise we won't figure out to output
54 * <username>/root@DEFAULT_REALM.
58 user
= roken_get_loginname(userbuf
, sizeof(userbuf
));
61 user
= roken_get_username(userbuf
, sizeof(userbuf
));
63 krb5_set_error_message(context
, ENOTTY
,
64 N_("unable to figure out current principal",
66 return ENOTTY
; /* XXX */
70 if (!issuid() && getuid() == 0 && strcmp(user
, "root") != 0)
71 second_component
= "root"; /* We'll use <user>/root */
73 return krb5_make_principal(context
, princ
, NULL
, user
,
74 second_component
, NULL
);
77 KRB5_LIB_FUNCTION krb5_error_code KRB5_LIB_CALL
78 krb5_get_default_principal (krb5_context context
,
79 krb5_principal
*princ
)
86 ret
= krb5_cc_default (context
, &id
);
88 ret
= krb5_cc_get_principal (context
, id
, princ
);
89 krb5_cc_close (context
, id
);
94 return _krb5_get_default_principal_local(context
, princ
);