cmd/msgfmt/gnu_msgs.c

/*
 * CDDL HEADER START
 *
 * The contents of this file are subject to the terms of the
 * Common Development and Distribution License, Version 1.0 only
 * (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 2001, 2002 Sun Microsystems, Inc.  All rights reserved.
 * Use is subject to license terms.
 */

#pragma ident   "%Z%%M% %I% %E% SMI"

#include "gnu_msgfmt.h"
#include "../../lib/libc/inc/msgfmt.h"

struct messages *
search_msg(struct catalog *p, const char *id, unsigned int hash_val)
{
    unsigned int    i, idx, inc;
    struct messages *m;

    idx = hash_val % p->thash_size;
    inc = 1 + (hash_val % (p->thash_size - 2));
    if (!p->thash[idx])
        return (NULL);

    m = p->msg;
    for (m = p->msg; (i = p->thash[idx]) != 0;
        idx = (idx + inc) % p->thash_size) {
        if (strcmp(m[i - 1].id, id) == 0) {
            /* found */
            return (&m[i - 1]);
        }
    }
    return (NULL);
}

static int
msg_cmp(struct messages *m1, struct messages *m2)
{
    return (strcmp(m1->id, m2->id));
}

void
output_all_gnu_mo_files(void)
{
    struct catalog  *p, *op;
    struct messages *m;
    size_t  id_len, str_len, id_off, str_off, ids_top, strs_top;
    unsigned int    *hash_tbl;
    unsigned int    hash_size;
    unsigned int    num = 0, fnum = 0, unum = 0;
    unsigned int    i, idx;
    char    *ids, *strs;
    struct msgtbl   *id_tbl, *str_tbl;
    struct gnu_msg_info header;
    FILE    *out;

    p = catalog_head;

    while (p) {
        num += p->nmsg;
        fnum += p->fnum;
        unum += p->unum;


        free(p->thash);
        if (p->nmsg == 0) {
            /*
             * no message in this file
             * skip generating a mo
             */
            goto skip;
        }

        if (p->header)
            num--;

        p->msg = (struct messages *)Xrealloc(p->msg,
            sizeof (struct messages) * p->nmsg);

        /*
         * Sort the message array
         */
        qsort(p->msg, p->nmsg, sizeof (struct messages),
            (int (*)(const void *, const void *))msg_cmp);


        hash_size = find_prime(p->nmsg);
        hash_tbl = (unsigned int *)Xcalloc(hash_size,
            sizeof (unsigned int));


        /* Setting Header info */
        header.magic = GNU_MAGIC;
        header.revision = GNU_REVISION;
        header.num_of_str = p->nmsg;
        header.off_msgid_tbl = sizeof (struct gnu_msg_info);
        header.off_msgstr_tbl = sizeof (struct gnu_msg_info) +
            p->nmsg * sizeof (struct msgtbl);
        header.sz_hashtbl = hash_size;
        header.off_hashtbl = header.off_msgstr_tbl +
            p->nmsg * sizeof (struct msgtbl);

        m = p->msg;

        id_len = 0;
        str_len = 0;
        for (i = 0; i < p->nmsg; i++) {
            id_len += m[i].id_len;
            str_len += m[i].str_len;
        }
        ids = (char *)Xmalloc(id_len);
        strs = (char *)Xmalloc(str_len);
        id_tbl = (struct msgtbl *)Xmalloc(sizeof (struct msgtbl) *
            p->nmsg);
        str_tbl = (struct msgtbl *)Xmalloc(sizeof (struct msgtbl) *
            p->nmsg);
        id_off = 0;
        str_off = 0;
        ids_top = header.off_hashtbl +
            sizeof (unsigned int) * hash_size;
        strs_top = ids_top + id_len;
        for (i = 0; i < p->nmsg; i++) {
            /*
             * Set the hash table
             */
            idx = get_hash_index(hash_tbl, m[i].hash, hash_size);
            hash_tbl[idx] = i + 1;

            /*
             * rearrange msgid and msgstr
             */
            id_tbl[i].len = m[i].id_len - 1;
            str_tbl[i].len = m[i].str_len - 1;
            id_tbl[i].offset = id_off + ids_top;
            str_tbl[i].offset = str_off + strs_top;
            (void) memcpy(ids + id_off, m[i].id, m[i].id_len);
            (void) memcpy(strs + str_off, m[i].str, m[i].str_len);
            id_off += m[i].id_len;
            str_off += m[i].str_len;
            free(m[i].id);
            free(m[i].str);
        }

        if ((out = fopen(p->fname, "w")) == NULL) {
            error(gettext(ERR_OPEN_FAILED), p->fname);
            /* NOTREACHED */
        }

        /* writing header */
        (void) fwrite(&header, sizeof (struct gnu_msg_info),
            1, out);

        /* writing msgid offset table */
        (void) fwrite(id_tbl, sizeof (struct msgtbl),
            p->nmsg, out);
        /* writing msgstr offset table */
        (void) fwrite(str_tbl, sizeof (struct msgtbl),
            p->nmsg, out);
        /* writing hash table */
        (void) fwrite(hash_tbl, sizeof (unsigned int),
            hash_size, out);
        /* writing msgid table */
        (void) fwrite(ids, id_len, 1, out);
        /* writing msgstr table */
        (void) fwrite(strs, str_len, 1, out);

        (void) fclose(out);
        free(id_tbl);
        free(str_tbl);
        free(hash_tbl);
        free(ids);
        free(strs);
skip:
        free(p->fname);
        free(p->msg);
        op = p->next;
        free(p);
        p = op;
    }
    if (verbose_flag) {
        diag(gettext(DIAG_RESULTS), num, fnum, unum);
    }
}