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/*
* CDDL HEADER START
*
* The contents of this file are subject to the terms of the
* Common Development and Distribution License (the "License").
* You may not use this file except in compliance with the License.
*
* You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
* or http://www.opensolaris.org/os/licensing.
* See the License for the specific language governing permissions
* and limitations under the License.
*
* When distributing Covered Code, include this CDDL HEADER in each
* file and include the License file at usr/src/OPENSOLARIS.LICENSE.
* If applicable, add the following below this CDDL HEADER, with the
* fields enclosed by brackets "[]" replaced with your own identifying
* information: Portions Copyright [yyyy] [name of copyright owner]
*
* CDDL HEADER END
*/
/*
* Copyright 2008 Sun Microsystems, Inc. All rights reserved.
* Use is subject to license terms.
*/
#pragma ident "%Z%%M% %I% %E% SMI"
/*
* catgets.c
*/
#pragma weak _catgets = catgets
#include "lint.h"
#include <sys/types.h>
#include <nl_types.h>
#include <errno.h>
#include "nlspath_checks.h"
char *
catgets(nl_catd catd_st, int set_id, int msg_id, const char *def_str)
{
int hi, lo, mid;
struct _cat_hdr *p;
struct _cat_set_hdr *q;
struct _cat_msg_hdr *r;
void *catd;
if ((catd_st == NULL) || (catd_st == (nl_catd)-1)) {
/* invalid message catalog descriptor */
errno = EBADF;
return ((char *)def_str);
}
if ((catd_st->__content == NULL) &&
(catd_st->__size == 0) && (catd_st->__trust == 1)) {
/* special message catalog descriptor for C locale */
return ((char *)def_str);
} else if ((catd_st->__content == NULL) || (catd_st->__size == 0)) {
/* invalid message catalog descriptor */
errno = EBADF;
return ((char *)def_str);
}
catd = catd_st->__content;
p = (struct _cat_hdr *)catd_st->__content;
hi = p->__nsets - 1;
lo = 0;
/*
* Two while loops will perform binary search.
* Outer loop searches the set and inner loop searches
* message id
*/
while (hi >= lo) {
mid = (hi + lo) / 2;
q = (struct _cat_set_hdr *)
((uintptr_t)catd
+ _CAT_HDR_SIZE
+ _CAT_SET_HDR_SIZE * mid);
if (q->__set_no == set_id) {
lo = q->__first_msg_hdr;
hi = lo + q->__nmsgs - 1;
while (hi >= lo) {
mid = (hi + lo) / 2;
r = (struct _cat_msg_hdr *)
((uintptr_t)catd
+ _CAT_HDR_SIZE
+ p->__msg_hdr_offset
+ _CAT_MSG_HDR_SIZE * mid);
if (r->__msg_no == msg_id) {
char *msg = (char *)catd
+ _CAT_HDR_SIZE
+ p->__msg_text_offset
+ r->__msg_offset;
if (!catd_st->__trust) {
int errno_save = errno;
char *cmsg = check_format(
def_str, msg, 0);
if (cmsg == def_str) {
/* security */
return ((char *)
def_str);
} else {
errno = errno_save;
return (msg);
}
} else {
return (msg);
}
} else if (r->__msg_no < msg_id)
lo = mid + 1;
else
hi = mid - 1;
} /* while */
/* In case set number not found */
errno = ENOMSG;
return ((char *)def_str);
} else if (q->__set_no < set_id)
lo = mid + 1;
else
hi = mid - 1;
} /* while */
/* In case msg_id not found. */
errno = ENOMSG;
return ((char *)def_str);
}
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