port/locale/rune.c

4297a3b0d0a35d80f86fff155e288e885a100e6dGarrett D'Amore/*
2d08521bd15501c8370ba2153b9cca4f094979d0Garrett D'Amore * Copyright 2014 Garrett D'Amore <garrett@damore.org>
6b5e5868e7ebf1aff3a5abd7d0c4ef0e5fbf3648Garrett D'Amore * Copyright 2010 Nexenta Systems, Inc.  All rights reserved.
4297a3b0d0a35d80f86fff155e288e885a100e6dGarrett D'Amore * Copyright (c) 1993
4297a3b0d0a35d80f86fff155e288e885a100e6dGarrett D'Amore *  The Regents of the University of California.  All rights reserved.
4297a3b0d0a35d80f86fff155e288e885a100e6dGarrett D'Amore *
4297a3b0d0a35d80f86fff155e288e885a100e6dGarrett D'Amore * This code is derived from software contributed to Berkeley by
4297a3b0d0a35d80f86fff155e288e885a100e6dGarrett D'Amore * Paul Borman at Krystal Technologies.
4297a3b0d0a35d80f86fff155e288e885a100e6dGarrett D'Amore *
4297a3b0d0a35d80f86fff155e288e885a100e6dGarrett D'Amore * Redistribution and use in source and binary forms, with or without
4297a3b0d0a35d80f86fff155e288e885a100e6dGarrett D'Amore * modification, are permitted provided that the following conditions
4297a3b0d0a35d80f86fff155e288e885a100e6dGarrett D'Amore * are met:
4297a3b0d0a35d80f86fff155e288e885a100e6dGarrett D'Amore * 1. Redistributions of source code must retain the above copyright
4297a3b0d0a35d80f86fff155e288e885a100e6dGarrett D'Amore *    notice, this list of conditions and the following disclaimer.
4297a3b0d0a35d80f86fff155e288e885a100e6dGarrett D'Amore * 2. Redistributions in binary form must reproduce the above copyright
4297a3b0d0a35d80f86fff155e288e885a100e6dGarrett D'Amore *    notice, this list of conditions and the following disclaimer in the
4297a3b0d0a35d80f86fff155e288e885a100e6dGarrett D'Amore *    documentation and/or other materials provided with the distribution.
4297a3b0d0a35d80f86fff155e288e885a100e6dGarrett D'Amore * 4. Neither the name of the University nor the names of its contributors
4297a3b0d0a35d80f86fff155e288e885a100e6dGarrett D'Amore *    may be used to endorse or promote products derived from this software
4297a3b0d0a35d80f86fff155e288e885a100e6dGarrett D'Amore *    without specific prior written permission.
4297a3b0d0a35d80f86fff155e288e885a100e6dGarrett D'Amore *
4297a3b0d0a35d80f86fff155e288e885a100e6dGarrett D'Amore * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
4297a3b0d0a35d80f86fff155e288e885a100e6dGarrett D'Amore * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
4297a3b0d0a35d80f86fff155e288e885a100e6dGarrett D'Amore * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
4297a3b0d0a35d80f86fff155e288e885a100e6dGarrett D'Amore * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
4297a3b0d0a35d80f86fff155e288e885a100e6dGarrett D'Amore * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
4297a3b0d0a35d80f86fff155e288e885a100e6dGarrett D'Amore * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
4297a3b0d0a35d80f86fff155e288e885a100e6dGarrett D'Amore * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
4297a3b0d0a35d80f86fff155e288e885a100e6dGarrett D'Amore * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
4297a3b0d0a35d80f86fff155e288e885a100e6dGarrett D'Amore * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
4297a3b0d0a35d80f86fff155e288e885a100e6dGarrett D'Amore * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
4297a3b0d0a35d80f86fff155e288e885a100e6dGarrett D'Amore * SUCH DAMAGE.
4297a3b0d0a35d80f86fff155e288e885a100e6dGarrett D'Amore */
4297a3b0d0a35d80f86fff155e288e885a100e6dGarrett D'Amore
4297a3b0d0a35d80f86fff155e288e885a100e6dGarrett D'Amore#include "lint.h"
4297a3b0d0a35d80f86fff155e288e885a100e6dGarrett D'Amore#include "file64.h"
4297a3b0d0a35d80f86fff155e288e885a100e6dGarrett D'Amore#include <errno.h>
4297a3b0d0a35d80f86fff155e288e885a100e6dGarrett D'Amore#include <stdio.h>
4297a3b0d0a35d80f86fff155e288e885a100e6dGarrett D'Amore#include <string.h>
4297a3b0d0a35d80f86fff155e288e885a100e6dGarrett D'Amore#include <stdlib.h>
4297a3b0d0a35d80f86fff155e288e885a100e6dGarrett D'Amore#include <sys/types.h>
4297a3b0d0a35d80f86fff155e288e885a100e6dGarrett D'Amore#include <sys/stat.h>
2d08521bd15501c8370ba2153b9cca4f094979d0Garrett D'Amore#include <sys/mman.h>
2d08521bd15501c8370ba2153b9cca4f094979d0Garrett D'Amore#include <fcntl.h>
2d08521bd15501c8370ba2153b9cca4f094979d0Garrett D'Amore#include <unistd.h>
4297a3b0d0a35d80f86fff155e288e885a100e6dGarrett D'Amore
2d08521bd15501c8370ba2153b9cca4f094979d0Garrett D'Amore#include "libc.h"
4297a3b0d0a35d80f86fff155e288e885a100e6dGarrett D'Amore#include "runetype.h"
4297a3b0d0a35d80f86fff155e288e885a100e6dGarrett D'Amore#include "runefile.h"
4297a3b0d0a35d80f86fff155e288e885a100e6dGarrett D'Amore
4297a3b0d0a35d80f86fff155e288e885a100e6dGarrett D'Amore_RuneLocale *
2d08521bd15501c8370ba2153b9cca4f094979d0Garrett D'Amore_Read_RuneMagi(const char *fname)
4297a3b0d0a35d80f86fff155e288e885a100e6dGarrett D'Amore{
4297a3b0d0a35d80f86fff155e288e885a100e6dGarrett D'Amore    char *fdata, *data;
4297a3b0d0a35d80f86fff155e288e885a100e6dGarrett D'Amore    void *lastp;
4297a3b0d0a35d80f86fff155e288e885a100e6dGarrett D'Amore    _FileRuneLocale *frl;
4297a3b0d0a35d80f86fff155e288e885a100e6dGarrett D'Amore    _RuneLocale *rl;
4297a3b0d0a35d80f86fff155e288e885a100e6dGarrett D'Amore    _FileRuneEntry *frr;
4297a3b0d0a35d80f86fff155e288e885a100e6dGarrett D'Amore    _RuneEntry *rr;
4297a3b0d0a35d80f86fff155e288e885a100e6dGarrett D'Amore    struct stat sb;
4297a3b0d0a35d80f86fff155e288e885a100e6dGarrett D'Amore    int x, saverr;
4297a3b0d0a35d80f86fff155e288e885a100e6dGarrett D'Amore    void *variable;
4297a3b0d0a35d80f86fff155e288e885a100e6dGarrett D'Amore    _FileRuneEntry *runetype_ext_ranges;
4297a3b0d0a35d80f86fff155e288e885a100e6dGarrett D'Amore    _FileRuneEntry *maplower_ext_ranges;
4297a3b0d0a35d80f86fff155e288e885a100e6dGarrett D'Amore    _FileRuneEntry *mapupper_ext_ranges;
4297a3b0d0a35d80f86fff155e288e885a100e6dGarrett D'Amore    int runetype_ext_len = 0;
2d08521bd15501c8370ba2153b9cca4f094979d0Garrett D'Amore    int fd;
4297a3b0d0a35d80f86fff155e288e885a100e6dGarrett D'Amore
2d08521bd15501c8370ba2153b9cca4f094979d0Garrett D'Amore    if ((fd = open(fname, O_RDONLY)) < 0) {
4297a3b0d0a35d80f86fff155e288e885a100e6dGarrett D'Amore        errno = EINVAL;
4297a3b0d0a35d80f86fff155e288e885a100e6dGarrett D'Amore        return (NULL);
4297a3b0d0a35d80f86fff155e288e885a100e6dGarrett D'Amore    }
4297a3b0d0a35d80f86fff155e288e885a100e6dGarrett D'Amore
2d08521bd15501c8370ba2153b9cca4f094979d0Garrett D'Amore    if (fstat(fd, &sb) < 0) {
2d08521bd15501c8370ba2153b9cca4f094979d0Garrett D'Amore        (void) close(fd);
2d08521bd15501c8370ba2153b9cca4f094979d0Garrett D'Amore        errno = EINVAL;
4297a3b0d0a35d80f86fff155e288e885a100e6dGarrett D'Amore        return (NULL);
2d08521bd15501c8370ba2153b9cca4f094979d0Garrett D'Amore    }
4297a3b0d0a35d80f86fff155e288e885a100e6dGarrett D'Amore
2d08521bd15501c8370ba2153b9cca4f094979d0Garrett D'Amore    if ((size_t)sb.st_size < sizeof (_FileRuneLocale)) {
2d08521bd15501c8370ba2153b9cca4f094979d0Garrett D'Amore        (void) close(fd);
2d08521bd15501c8370ba2153b9cca4f094979d0Garrett D'Amore        errno = EINVAL;
4297a3b0d0a35d80f86fff155e288e885a100e6dGarrett D'Amore        return (NULL);
4297a3b0d0a35d80f86fff155e288e885a100e6dGarrett D'Amore    }
4297a3b0d0a35d80f86fff155e288e885a100e6dGarrett D'Amore
2d08521bd15501c8370ba2153b9cca4f094979d0Garrett D'Amore
2d08521bd15501c8370ba2153b9cca4f094979d0Garrett D'Amore    fdata = mmap(NULL, sb.st_size, PROT_READ, MAP_PRIVATE, fd, 0);
2d08521bd15501c8370ba2153b9cca4f094979d0Garrett D'Amore    (void) close(fd);
2d08521bd15501c8370ba2153b9cca4f094979d0Garrett D'Amore    if (fdata == NULL) {
2d08521bd15501c8370ba2153b9cca4f094979d0Garrett D'Amore        errno = EINVAL;
4297a3b0d0a35d80f86fff155e288e885a100e6dGarrett D'Amore        return (NULL);
4297a3b0d0a35d80f86fff155e288e885a100e6dGarrett D'Amore    }
4297a3b0d0a35d80f86fff155e288e885a100e6dGarrett D'Amore
4297a3b0d0a35d80f86fff155e288e885a100e6dGarrett D'Amore    frl = (_FileRuneLocale *)(void *)fdata;
4297a3b0d0a35d80f86fff155e288e885a100e6dGarrett D'Amore    lastp = fdata + sb.st_size;
4297a3b0d0a35d80f86fff155e288e885a100e6dGarrett D'Amore
4297a3b0d0a35d80f86fff155e288e885a100e6dGarrett D'Amore    variable = frl + 1;
4297a3b0d0a35d80f86fff155e288e885a100e6dGarrett D'Amore
4297a3b0d0a35d80f86fff155e288e885a100e6dGarrett D'Amore    if (memcmp(frl->magic, _FILE_RUNE_MAGIC_1, sizeof (frl->magic))) {
2d08521bd15501c8370ba2153b9cca4f094979d0Garrett D'Amore        goto invalid;
4297a3b0d0a35d80f86fff155e288e885a100e6dGarrett D'Amore    }
4297a3b0d0a35d80f86fff155e288e885a100e6dGarrett D'Amore
4297a3b0d0a35d80f86fff155e288e885a100e6dGarrett D'Amore    runetype_ext_ranges = (_FileRuneEntry *)variable;
4297a3b0d0a35d80f86fff155e288e885a100e6dGarrett D'Amore    variable = runetype_ext_ranges + frl->runetype_ext_nranges;
4297a3b0d0a35d80f86fff155e288e885a100e6dGarrett D'Amore    if (variable > lastp) {
2d08521bd15501c8370ba2153b9cca4f094979d0Garrett D'Amore        goto invalid;
4297a3b0d0a35d80f86fff155e288e885a100e6dGarrett D'Amore    }
4297a3b0d0a35d80f86fff155e288e885a100e6dGarrett D'Amore
4297a3b0d0a35d80f86fff155e288e885a100e6dGarrett D'Amore    maplower_ext_ranges = (_FileRuneEntry *)variable;
4297a3b0d0a35d80f86fff155e288e885a100e6dGarrett D'Amore    variable = maplower_ext_ranges + frl->maplower_ext_nranges;
4297a3b0d0a35d80f86fff155e288e885a100e6dGarrett D'Amore    if (variable > lastp) {
2d08521bd15501c8370ba2153b9cca4f094979d0Garrett D'Amore        goto invalid;
4297a3b0d0a35d80f86fff155e288e885a100e6dGarrett D'Amore    }
4297a3b0d0a35d80f86fff155e288e885a100e6dGarrett D'Amore
4297a3b0d0a35d80f86fff155e288e885a100e6dGarrett D'Amore    mapupper_ext_ranges = (_FileRuneEntry *)variable;
4297a3b0d0a35d80f86fff155e288e885a100e6dGarrett D'Amore    variable = mapupper_ext_ranges + frl->mapupper_ext_nranges;
4297a3b0d0a35d80f86fff155e288e885a100e6dGarrett D'Amore    if (variable > lastp) {
2d08521bd15501c8370ba2153b9cca4f094979d0Garrett D'Amore        goto invalid;
4297a3b0d0a35d80f86fff155e288e885a100e6dGarrett D'Amore    }
4297a3b0d0a35d80f86fff155e288e885a100e6dGarrett D'Amore
4297a3b0d0a35d80f86fff155e288e885a100e6dGarrett D'Amore    frr = runetype_ext_ranges;
4297a3b0d0a35d80f86fff155e288e885a100e6dGarrett D'Amore    for (x = 0; x < frl->runetype_ext_nranges; ++x) {
4297a3b0d0a35d80f86fff155e288e885a100e6dGarrett D'Amore        uint32_t *types;
4297a3b0d0a35d80f86fff155e288e885a100e6dGarrett D'Amore
4297a3b0d0a35d80f86fff155e288e885a100e6dGarrett D'Amore        if (frr[x].map == 0) {
4297a3b0d0a35d80f86fff155e288e885a100e6dGarrett D'Amore            int len = frr[x].max - frr[x].min + 1;
4297a3b0d0a35d80f86fff155e288e885a100e6dGarrett D'Amore            types = variable;
4297a3b0d0a35d80f86fff155e288e885a100e6dGarrett D'Amore            variable = types + len;
4297a3b0d0a35d80f86fff155e288e885a100e6dGarrett D'Amore            runetype_ext_len += len;
4297a3b0d0a35d80f86fff155e288e885a100e6dGarrett D'Amore            if (variable > lastp) {
2d08521bd15501c8370ba2153b9cca4f094979d0Garrett D'Amore                goto invalid;
4297a3b0d0a35d80f86fff155e288e885a100e6dGarrett D'Amore            }
4297a3b0d0a35d80f86fff155e288e885a100e6dGarrett D'Amore        }
4297a3b0d0a35d80f86fff155e288e885a100e6dGarrett D'Amore    }
4297a3b0d0a35d80f86fff155e288e885a100e6dGarrett D'Amore
4297a3b0d0a35d80f86fff155e288e885a100e6dGarrett D'Amore    if ((char *)variable + frl->variable_len > (char *)lastp) {
2d08521bd15501c8370ba2153b9cca4f094979d0Garrett D'Amore        goto invalid;
4297a3b0d0a35d80f86fff155e288e885a100e6dGarrett D'Amore    }
4297a3b0d0a35d80f86fff155e288e885a100e6dGarrett D'Amore
4297a3b0d0a35d80f86fff155e288e885a100e6dGarrett D'Amore    /*
4297a3b0d0a35d80f86fff155e288e885a100e6dGarrett D'Amore     * Convert from disk format to host format.
4297a3b0d0a35d80f86fff155e288e885a100e6dGarrett D'Amore     */
2d08521bd15501c8370ba2153b9cca4f094979d0Garrett D'Amore    data = libc_malloc(sizeof (_RuneLocale) +
4297a3b0d0a35d80f86fff155e288e885a100e6dGarrett D'Amore        (frl->runetype_ext_nranges + frl->maplower_ext_nranges +
4297a3b0d0a35d80f86fff155e288e885a100e6dGarrett D'Amore        frl->mapupper_ext_nranges) * sizeof (_RuneEntry) +
4297a3b0d0a35d80f86fff155e288e885a100e6dGarrett D'Amore        runetype_ext_len * sizeof (*rr->__types) +
4297a3b0d0a35d80f86fff155e288e885a100e6dGarrett D'Amore        frl->variable_len);
4297a3b0d0a35d80f86fff155e288e885a100e6dGarrett D'Amore    if (data == NULL) {
4297a3b0d0a35d80f86fff155e288e885a100e6dGarrett D'Amore        saverr = errno;
2d08521bd15501c8370ba2153b9cca4f094979d0Garrett D'Amore        (void) munmap(fdata, sb.st_size);
4297a3b0d0a35d80f86fff155e288e885a100e6dGarrett D'Amore        errno = saverr;
4297a3b0d0a35d80f86fff155e288e885a100e6dGarrett D'Amore        return (NULL);
4297a3b0d0a35d80f86fff155e288e885a100e6dGarrett D'Amore    }
4297a3b0d0a35d80f86fff155e288e885a100e6dGarrett D'Amore
4297a3b0d0a35d80f86fff155e288e885a100e6dGarrett D'Amore    rl = (_RuneLocale *)(void *)data;
4297a3b0d0a35d80f86fff155e288e885a100e6dGarrett D'Amore    rl->__variable = rl + 1;
4297a3b0d0a35d80f86fff155e288e885a100e6dGarrett D'Amore
4297a3b0d0a35d80f86fff155e288e885a100e6dGarrett D'Amore    (void) memcpy(rl->__magic, _RUNE_MAGIC_1, sizeof (rl->__magic));
4297a3b0d0a35d80f86fff155e288e885a100e6dGarrett D'Amore    (void) memcpy(rl->__encoding, frl->encoding, sizeof (rl->__encoding));
4297a3b0d0a35d80f86fff155e288e885a100e6dGarrett D'Amore
4297a3b0d0a35d80f86fff155e288e885a100e6dGarrett D'Amore    rl->__variable_len = frl->variable_len;
4297a3b0d0a35d80f86fff155e288e885a100e6dGarrett D'Amore    rl->__runetype_ext.__nranges = frl->runetype_ext_nranges;
4297a3b0d0a35d80f86fff155e288e885a100e6dGarrett D'Amore    rl->__maplower_ext.__nranges = frl->maplower_ext_nranges;
4297a3b0d0a35d80f86fff155e288e885a100e6dGarrett D'Amore    rl->__mapupper_ext.__nranges = frl->mapupper_ext_nranges;
4297a3b0d0a35d80f86fff155e288e885a100e6dGarrett D'Amore
4297a3b0d0a35d80f86fff155e288e885a100e6dGarrett D'Amore    for (x = 0; x < _CACHED_RUNES; ++x) {
4297a3b0d0a35d80f86fff155e288e885a100e6dGarrett D'Amore        rl->__runetype[x] = frl->runetype[x];
4297a3b0d0a35d80f86fff155e288e885a100e6dGarrett D'Amore        rl->__maplower[x] = frl->maplower[x];
4297a3b0d0a35d80f86fff155e288e885a100e6dGarrett D'Amore        rl->__mapupper[x] = frl->mapupper[x];
4297a3b0d0a35d80f86fff155e288e885a100e6dGarrett D'Amore    }
4297a3b0d0a35d80f86fff155e288e885a100e6dGarrett D'Amore
4297a3b0d0a35d80f86fff155e288e885a100e6dGarrett D'Amore    rl->__runetype_ext.__ranges = (_RuneEntry *)rl->__variable;
4297a3b0d0a35d80f86fff155e288e885a100e6dGarrett D'Amore    rl->__variable = rl->__runetype_ext.__ranges +
4297a3b0d0a35d80f86fff155e288e885a100e6dGarrett D'Amore        rl->__runetype_ext.__nranges;
4297a3b0d0a35d80f86fff155e288e885a100e6dGarrett D'Amore
4297a3b0d0a35d80f86fff155e288e885a100e6dGarrett D'Amore    rl->__maplower_ext.__ranges = (_RuneEntry *)rl->__variable;
4297a3b0d0a35d80f86fff155e288e885a100e6dGarrett D'Amore    rl->__variable = rl->__maplower_ext.__ranges +
4297a3b0d0a35d80f86fff155e288e885a100e6dGarrett D'Amore        rl->__maplower_ext.__nranges;
4297a3b0d0a35d80f86fff155e288e885a100e6dGarrett D'Amore
4297a3b0d0a35d80f86fff155e288e885a100e6dGarrett D'Amore    rl->__mapupper_ext.__ranges = (_RuneEntry *)rl->__variable;
4297a3b0d0a35d80f86fff155e288e885a100e6dGarrett D'Amore    rl->__variable = rl->__mapupper_ext.__ranges +
4297a3b0d0a35d80f86fff155e288e885a100e6dGarrett D'Amore        rl->__mapupper_ext.__nranges;
4297a3b0d0a35d80f86fff155e288e885a100e6dGarrett D'Amore
4297a3b0d0a35d80f86fff155e288e885a100e6dGarrett D'Amore    variable = mapupper_ext_ranges + frl->mapupper_ext_nranges;
4297a3b0d0a35d80f86fff155e288e885a100e6dGarrett D'Amore    frr = runetype_ext_ranges;
4297a3b0d0a35d80f86fff155e288e885a100e6dGarrett D'Amore    rr = rl->__runetype_ext.__ranges;
4297a3b0d0a35d80f86fff155e288e885a100e6dGarrett D'Amore    for (x = 0; x < rl->__runetype_ext.__nranges; ++x) {
4297a3b0d0a35d80f86fff155e288e885a100e6dGarrett D'Amore        uint32_t *types;
4297a3b0d0a35d80f86fff155e288e885a100e6dGarrett D'Amore
4297a3b0d0a35d80f86fff155e288e885a100e6dGarrett D'Amore        rr[x].__min = frr[x].min;
4297a3b0d0a35d80f86fff155e288e885a100e6dGarrett D'Amore        rr[x].__max = frr[x].max;
4297a3b0d0a35d80f86fff155e288e885a100e6dGarrett D'Amore        rr[x].__map = frr[x].map;
4297a3b0d0a35d80f86fff155e288e885a100e6dGarrett D'Amore        if (rr[x].__map == 0) {
4297a3b0d0a35d80f86fff155e288e885a100e6dGarrett D'Amore            int len = rr[x].__max - rr[x].__min + 1;
4297a3b0d0a35d80f86fff155e288e885a100e6dGarrett D'Amore            types = variable;
4297a3b0d0a35d80f86fff155e288e885a100e6dGarrett D'Amore            variable = types + len;
4297a3b0d0a35d80f86fff155e288e885a100e6dGarrett D'Amore            rr[x].__types = rl->__variable;
4297a3b0d0a35d80f86fff155e288e885a100e6dGarrett D'Amore            rl->__variable = rr[x].__types + len;
4297a3b0d0a35d80f86fff155e288e885a100e6dGarrett D'Amore            while (len-- > 0)
4297a3b0d0a35d80f86fff155e288e885a100e6dGarrett D'Amore                rr[x].__types[len] = types[len];
4297a3b0d0a35d80f86fff155e288e885a100e6dGarrett D'Amore        } else
4297a3b0d0a35d80f86fff155e288e885a100e6dGarrett D'Amore            rr[x].__types = NULL;
4297a3b0d0a35d80f86fff155e288e885a100e6dGarrett D'Amore    }
4297a3b0d0a35d80f86fff155e288e885a100e6dGarrett D'Amore
4297a3b0d0a35d80f86fff155e288e885a100e6dGarrett D'Amore    frr = maplower_ext_ranges;
4297a3b0d0a35d80f86fff155e288e885a100e6dGarrett D'Amore    rr = rl->__maplower_ext.__ranges;
4297a3b0d0a35d80f86fff155e288e885a100e6dGarrett D'Amore    for (x = 0; x < rl->__maplower_ext.__nranges; ++x) {
4297a3b0d0a35d80f86fff155e288e885a100e6dGarrett D'Amore        rr[x].__min = frr[x].min;
4297a3b0d0a35d80f86fff155e288e885a100e6dGarrett D'Amore        rr[x].__max = frr[x].max;
4297a3b0d0a35d80f86fff155e288e885a100e6dGarrett D'Amore        rr[x].__map = frr[x].map;
4297a3b0d0a35d80f86fff155e288e885a100e6dGarrett D'Amore    }
4297a3b0d0a35d80f86fff155e288e885a100e6dGarrett D'Amore
4297a3b0d0a35d80f86fff155e288e885a100e6dGarrett D'Amore    frr = mapupper_ext_ranges;
4297a3b0d0a35d80f86fff155e288e885a100e6dGarrett D'Amore    rr = rl->__mapupper_ext.__ranges;
4297a3b0d0a35d80f86fff155e288e885a100e6dGarrett D'Amore    for (x = 0; x < rl->__mapupper_ext.__nranges; ++x) {
4297a3b0d0a35d80f86fff155e288e885a100e6dGarrett D'Amore        rr[x].__min = frr[x].min;
4297a3b0d0a35d80f86fff155e288e885a100e6dGarrett D'Amore        rr[x].__max = frr[x].max;
4297a3b0d0a35d80f86fff155e288e885a100e6dGarrett D'Amore        rr[x].__map = frr[x].map;
4297a3b0d0a35d80f86fff155e288e885a100e6dGarrett D'Amore    }
4297a3b0d0a35d80f86fff155e288e885a100e6dGarrett D'Amore
4297a3b0d0a35d80f86fff155e288e885a100e6dGarrett D'Amore    (void) memcpy(rl->__variable, variable, rl->__variable_len);
2d08521bd15501c8370ba2153b9cca4f094979d0Garrett D'Amore    (void) munmap(fdata, sb.st_size);
4297a3b0d0a35d80f86fff155e288e885a100e6dGarrett D'Amore
4297a3b0d0a35d80f86fff155e288e885a100e6dGarrett D'Amore    /*
4297a3b0d0a35d80f86fff155e288e885a100e6dGarrett D'Amore     * Go out and zero pointers that should be zero.
4297a3b0d0a35d80f86fff155e288e885a100e6dGarrett D'Amore     */
4297a3b0d0a35d80f86fff155e288e885a100e6dGarrett D'Amore    if (!rl->__variable_len)
4297a3b0d0a35d80f86fff155e288e885a100e6dGarrett D'Amore        rl->__variable = NULL;
4297a3b0d0a35d80f86fff155e288e885a100e6dGarrett D'Amore
4297a3b0d0a35d80f86fff155e288e885a100e6dGarrett D'Amore    if (!rl->__runetype_ext.__nranges)
4297a3b0d0a35d80f86fff155e288e885a100e6dGarrett D'Amore        rl->__runetype_ext.__ranges = NULL;
4297a3b0d0a35d80f86fff155e288e885a100e6dGarrett D'Amore
4297a3b0d0a35d80f86fff155e288e885a100e6dGarrett D'Amore    if (!rl->__maplower_ext.__nranges)
4297a3b0d0a35d80f86fff155e288e885a100e6dGarrett D'Amore        rl->__maplower_ext.__ranges = NULL;
4297a3b0d0a35d80f86fff155e288e885a100e6dGarrett D'Amore
4297a3b0d0a35d80f86fff155e288e885a100e6dGarrett D'Amore    if (!rl->__mapupper_ext.__nranges)
4297a3b0d0a35d80f86fff155e288e885a100e6dGarrett D'Amore        rl->__mapupper_ext.__ranges = NULL;
4297a3b0d0a35d80f86fff155e288e885a100e6dGarrett D'Amore
4297a3b0d0a35d80f86fff155e288e885a100e6dGarrett D'Amore    return (rl);
2d08521bd15501c8370ba2153b9cca4f094979d0Garrett D'Amore
2d08521bd15501c8370ba2153b9cca4f094979d0Garrett D'Amoreinvalid:
2d08521bd15501c8370ba2153b9cca4f094979d0Garrett D'Amore    (void) munmap(fdata, sb.st_size);
2d08521bd15501c8370ba2153b9cca4f094979d0Garrett D'Amore    errno = EINVAL;
2d08521bd15501c8370ba2153b9cca4f094979d0Garrett D'Amore    return (NULL);
4297a3b0d0a35d80f86fff155e288e885a100e6dGarrett D'Amore}