auth.c
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/* GNU mailutils - a suite of utilities for electronic mail
Copyright (C) 1999, 2000 Free Software Foundation, Inc.
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Library Public License as published by
the Free Software Foundation; either version 2, or (at your option)
any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU Library General Public License for more details.
You should have received a copy of the GNU Library General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */
#include <auth.h>
#include <cpystr.h>
#include <errno.h>
#include <sys/types.h>
#include <string.h>
#include <stdlib.h>
struct _auth
{
void *owner;
int (*_prologue) (auth_t);
int (*_authenticate) (auth_t);
int (*_epilogue) (auth_t);
};
int
auth_init (auth_t *pauth, void *owner)
{
auth_t auth;
if (pauth == NULL)
return EINVAL;
auth = calloc (1, sizeof (*auth));
if (auth == NULL)
return ENOMEM;
auth->owner = owner;
*pauth = auth;
return 0;
}
void
auth_destroy (auth_t *pauth, void *owner)
{
if (pauth && *pauth)
{
auth_t auth = *pauth;
if (auth->owner == owner)
free (auth);
*pauth = NULL;
}
}
int
auth_set_authenticate (auth_t auth, int (*_authenticate)(auth_t),
void *owner)
{
if (auth == NULL)
return EINVAL;
if (auth->owner != owner)
return EPERM;
auth->_authenticate = _authenticate;
return 0;
}
int
auth_authenticate (auth_t auth)
{
if (auth == NULL || auth->_authenticate == NULL)
return EINVAL;
return auth->_authenticate (auth);
}
int
auth_set_epilogue (auth_t auth, int (*_epilogue)(auth_t), void *owner)
{
if (auth == NULL)
return EINVAL;
if (auth->owner != owner)
return EPERM;
auth->_epilogue = _epilogue;
return 0;
}
int
auth_epilogue (auth_t auth)
{
if (auth == NULL && auth->_epilogue == NULL)
return EINVAL;
return auth->_epilogue (auth);
}
int
auth_set_prologue (auth_t auth, int (*_prologue)(auth_t), void *owner)
{
if (auth == NULL)
return EINVAL;
if (auth->owner != owner)
return EPERM;
auth->_prologue = _prologue;
return 0;
}
int
auth_prologue (auth_t auth)
{
if (auth == NULL && auth->_prologue == NULL)
return EINVAL;
return auth->_prologue (auth);
}