51 lines
1.6 KiB
Groff
51 lines
1.6 KiB
Groff
.\" Copyright (c) 2001 Kungliga Tekniska Högskolan
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.\" $Id: krb5_principal_get_realm.3,v 1.4 2002/08/28 15:30:56 joda Exp $
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.Dd June 20, 2001
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.Dt KRB5_PRINCIPAL_GET_REALM 3
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.Os HEIMDAL
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.Sh NAME
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.Nm krb5_principal_get_realm ,
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.Nm krb5_principal_get_comp_string
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.Nd decompose a principal
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.Sh LIBRARY
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Kerberos 5 Library (libkrb5, -lkrb5)
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.Sh SYNOPSIS
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.Fd #include <krb5.h>
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.Ft "const char *"
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.Fn krb5_principal_get_realm "krb5_context context" "krb5_principal principal"
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.Ft "const char *"
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.Fn krb5_principal_get_comp_string "krb5_context context" "krb5_principal principal" "unsigned int component"
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.Sh DESCRIPTION
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These functions return parts of the
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.Fa principal ,
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either the realm or a specific component. The returned string points
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to data inside the principal, so they are valid only as long as the
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principal exists.
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.Pp
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The
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.Fa component
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argument to
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.Fn krb5_principal_get_comp_string
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is the component number to return, from zero to the total number of
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components minus one. If a the requested component number is out of range,
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.Dv NULL
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is returned.
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.Pp
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These functions can be seen as a replacement for the
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.Fn krb5_princ_realm ,
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.Fn krb5_princ_component
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and related macros, described as intermal in the MIT API
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specification. A difference is that these functions return strings,
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not
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.Dv krb5_data .
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A reason to return
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.Dv krb5_data
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was that it was believed that principal components could contain
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binary data, but this belief was unfounded, and it has been decided
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that principal components are infact UTF8, so it's safe to use zero
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terminated strings.
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.Pp
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It's generally not necessary to look at the components of a principal.
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.Sh SEE ALSO
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.Xr krb5_unparse_name 3
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