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/*
* Copyright (C) 2000-2002 Red Hat, Inc.
*
* This is free software; you can redistribute it and/or modify it under
* the terms of the GNU Library General Public License as published by
* the Free Software Foundation; either version 2 of the License, 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
* 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.
*/
#ifndef libuser_error_h
#define libuser_error_h
#include <sys/types.h>
#include <errno.h>
#include <glib.h>
G_BEGIN_DECLS
typedef enum lu_status {
/* Non-fatal. */
lu_success = 0,
lu_warning_config_disabled,
/* Fatal. */
lu_error_generic,
lu_error_privilege,
lu_error_access_denied,
/* Data validation errors. */
lu_error_name_bad,
lu_error_id_bad,
lu_error_name_used,
lu_error_id_used,
/* Terminal manipulation errors. */
lu_error_terminal,
/* File I/O errors. */
lu_error_open,
lu_error_lock,
lu_error_stat,
lu_error_read,
lu_error_write,
lu_error_search,
/* Initialization or module-loading errors. */
lu_error_init,
lu_error_module_load,
lu_error_module_sym,
lu_error_module_version,
/* Since 0.53 */
lu_error_unlock_empty,
} lu_status_t;
typedef struct lu_error {
enum lu_status code;
char *string;
} lu_error_t;
/* Checks that a passed-in error pointer is not already populated, and calls
abort() if it is. */
#define LU_ERROR_CHECK(err_p_p) \
do { \
struct lu_error **__err = (err_p_p); \
if ((__err == NULL) || (*__err != NULL)) { \
if(__err == NULL) { \
fprintf(stderr, "libuser fatal error: %s() called with NULL " #err_p_p "\n", __FUNCTION__); \
} else \
if(*__err != NULL) { \
fprintf(stderr, "libuser fatal error: %s() called with non-NULL *" #err_p_p "\n", __FUNCTION__); \
} \
abort(); \
} \
} while(0)
/* Functions for allocating and freeing error objects. */
void lu_error_new(lu_error_t **error, lu_status_t code,
const char *fmt, ...);
const char *lu_strerror(lu_error_t *error);
gboolean lu_error_is_success(lu_status_t status);
gboolean lu_error_is_warning(lu_status_t status);
gboolean lu_error_is_error(lu_status_t status);
void lu_error_free(lu_error_t **error);
G_END_DECLS
#endif
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