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/*
* Copyright (C) 2004, 2005 Internet Systems Consortium, Inc. ("ISC")
* Copyright (C) 1999-2001 Internet Software Consortium.
*
* Permission to use, copy, modify, and distribute this software for any
* purpose with or without fee is hereby granted, provided that the above
* copyright notice and this permission notice appear in all copies.
*
* THE SOFTWARE IS PROVIDED "AS IS" AND ISC DISCLAIMS ALL WARRANTIES WITH
* REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY
* AND FITNESS. IN NO EVENT SHALL ISC BE LIABLE FOR ANY SPECIAL, DIRECT,
* INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM
* LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE
* OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
* PERFORMANCE OF THIS SOFTWARE.
*/
/* $Id: msgcat.c,v 1.13.18.3 2005/06/08 02:07:57 marka Exp $ */
/*! \file msgcat.c
*
* \author Principal Author: Bob Halley
*/
#include <config.h>
#include <stddef.h>
#include <stdlib.h>
#include <isc/magic.h>
#include <isc/msgcat.h>
#include <isc/util.h>
#ifdef HAVE_CATGETS
#include <nl_types.h> /* Required for nl_catd. */
#endif
/*
* Implementation Notes:
*
* We use malloc() and free() instead of isc_mem_get() and isc_mem_put()
* because we don't want to require a memory context to be specified
* in order to use a message catalog.
*/
struct isc_msgcat {
unsigned int magic;
#ifdef HAVE_CATGETS
nl_catd catalog;
#endif
};
#define MSGCAT_MAGIC ISC_MAGIC('M', 'C', 'a', 't')
#define VALID_MSGCAT(m) ISC_MAGIC_VALID(m, MSGCAT_MAGIC)
void
isc_msgcat_open(const char *name, isc_msgcat_t **msgcatp) {
isc_msgcat_t *msgcat;
/*
* Open a message catalog.
*/
REQUIRE(name != NULL);
REQUIRE(msgcatp != NULL && *msgcatp == NULL);
msgcat = malloc(sizeof(*msgcat));
if (msgcat == NULL) {
*msgcatp = NULL;
return;
}
#ifdef HAVE_CATGETS
/*
* We don't check if catopen() fails because we don't care.
* If it does fail, then when we call catgets(), it will use
* the default string.
*/
msgcat->catalog = catopen(name, 0);
#endif
msgcat->magic = MSGCAT_MAGIC;
*msgcatp = msgcat;
}
void
isc_msgcat_close(isc_msgcat_t **msgcatp) {
isc_msgcat_t *msgcat;
/*
* Close a message catalog.
*/
REQUIRE(msgcatp != NULL);
msgcat = *msgcatp;
REQUIRE(VALID_MSGCAT(msgcat) || msgcat == NULL);
if (msgcat != NULL) {
#ifdef HAVE_CATGETS
if (msgcat->catalog != (nl_catd)(-1))
(void)catclose(msgcat->catalog);
#endif
msgcat->magic = 0;
free(msgcat);
}
*msgcatp = NULL;
}
const char *
isc_msgcat_get(isc_msgcat_t *msgcat, int set, int message,
const char *default_text)
{
/*
* Get message 'message' from message set 'set' in 'msgcat'. If it
* is not available, use 'default'.
*/
REQUIRE(VALID_MSGCAT(msgcat) || msgcat == NULL);
REQUIRE(set > 0);
REQUIRE(message > 0);
REQUIRE(default_text != NULL);
#ifdef HAVE_CATGETS
if (msgcat == NULL)
return (default_text);
return (catgets(msgcat->catalog, set, message, default_text));
#else
return (default_text);
#endif
}
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