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.
43 const char *user = getenv("USER");
45 user = getenv("LOGNAME");
47 user = getenv("USERNAME");
54 * Will only use operating-system dependant operation to get the
55 * default principal, for use of functions that in ccache layer to
56 * avoid recursive calls.
60 _krb5_get_default_principal_local (krb5_context context,
61 krb5_principal *princ)
73 user = get_env_user();
74 if(user != NULL && strcmp(user, "root") != 0)
75 ret = krb5_make_principal(context, princ, NULL, user, "root", NULL);
77 ret = krb5_make_principal(context, princ, NULL, "root", NULL);
79 struct passwd *pw = getpwuid(uid);
83 user = get_env_user();
88 krb5_set_error_message(context, ENOTTY,
89 N_("unable to figure out current "
91 return ENOTTY; /* XXX */
93 ret = krb5_make_principal(context, princ, NULL, user, NULL);
100 #define SECURITY_WIN32
101 #include <security.h>
104 _krb5_get_default_principal_local(krb5_context context,
105 krb5_principal *princ)
107 /* See if we can get the principal first. We only expect this to
108 work if logged into a domain. */
111 ULONG sz = sizeof(username);
113 if (GetUserNameEx(NameUserPrincipal, username, &sz)) {
114 return krb5_parse_name_flags(context, username,
115 KRB5_PRINCIPAL_PARSE_ENTERPRISE,
120 /* Just get the Windows username. This should pretty much always
124 DWORD dsz = sizeof(username);
126 if (GetUserName(username, &dsz)) {
127 return krb5_make_principal(context, princ, NULL, username, NULL);
131 /* Failing that, we look at the environment */
133 const char * username = get_env_user();
135 if (username == NULL) {
136 krb5_set_error_string(context,
137 "unable to figure out current principal");
138 return ENOTTY; /* Really? */
141 return krb5_make_principal(context, princ, NULL, username, NULL);
147 KRB5_LIB_FUNCTION krb5_error_code KRB5_LIB_CALL
148 krb5_get_default_principal (krb5_context context,
149 krb5_principal *princ)
156 ret = krb5_cc_default (context, &id);
158 ret = krb5_cc_get_principal (context, id, princ);
159 krb5_cc_close (context, id);
164 return _krb5_get_default_principal_local(context, princ);