rdata/generic/hinfo_13.c

	hinfo_13.c revision 85bdc128fcda11c89ec1d76ea4221f4fa8e4fc24
/*
 * Copyright (C) 1998-2001  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 INTERNET SOFTWARE CONSORTIUM
 * DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL
 * INTERNET SOFTWARE CONSORTIUM 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: hinfo_13.c,v 1.36 2001/06/21 04:00:32 marka Exp $ */

/*
 * Reviewed: Wed Mar 15 16:47:10 PST 2000 by halley.
 */

#ifndef RDATA_GENERIC_HINFO_13_C
#define RDATA_GENERIC_HINFO_13_C

#define RRTYPE_HINFO_ATTRIBUTES (0)

static inline isc_result_t
fromtext_hinfo(ARGS_FROMTEXT) {
    isc_token_t token;
    int i;

    UNUSED(type);
    UNUSED(rdclass);
    UNUSED(origin);
    UNUSED(downcase);

    REQUIRE(type == 13);

    for (i = 0; i < 2 ; i++) {
        RETERR(isc_lex_getmastertoken(lexer, &token,
                          isc_tokentype_qstring,
                          ISC_FALSE));
        RETTOK(txt_fromtext(&token.value.as_textregion, target));
    }
    return (ISC_R_SUCCESS);
}

static inline isc_result_t
totext_hinfo(ARGS_TOTEXT) {
    isc_region_t region;

    UNUSED(tctx);

    REQUIRE(rdata->type == 13);
    REQUIRE(rdata->length != 0);

    dns_rdata_toregion(rdata, &region);
    RETERR(txt_totext(&region, target));
    RETERR(str_totext(" ", target));
    return (txt_totext(&region, target));
}

static inline isc_result_t
fromwire_hinfo(ARGS_FROMWIRE) {

    REQUIRE(type == 13);

    UNUSED(type);
    UNUSED(dctx);
    UNUSED(rdclass);
    UNUSED(downcase);

    RETERR(txt_fromwire(source, target));
    return (txt_fromwire(source, target));
}

static inline isc_result_t
towire_hinfo(ARGS_TOWIRE) {

    UNUSED(cctx);

    REQUIRE(rdata->type == 13);
    REQUIRE(rdata->length != 0);

    return (mem_tobuffer(target, rdata->data, rdata->length));
}

static inline int
compare_hinfo(ARGS_COMPARE) {
    isc_region_t r1;
    isc_region_t r2;

    REQUIRE(rdata1->type == rdata2->type);
    REQUIRE(rdata1->rdclass == rdata2->rdclass);
    REQUIRE(rdata1->type == 13);
    REQUIRE(rdata1->length != 0);
    REQUIRE(rdata2->length != 0);

    dns_rdata_toregion(rdata1, &r1);
    dns_rdata_toregion(rdata2, &r2);
    return (compare_region(&r1, &r2));
}

static inline isc_result_t
fromstruct_hinfo(ARGS_FROMSTRUCT) {
    dns_rdata_hinfo_t *hinfo = source;

    REQUIRE(type == 13);
    REQUIRE(source != NULL);
    REQUIRE(hinfo->common.rdtype == type);
    REQUIRE(hinfo->common.rdclass == rdclass);

    UNUSED(type);
    UNUSED(rdclass);

    RETERR(uint8_tobuffer(hinfo->cpu_len, target));
    RETERR(mem_tobuffer(target, hinfo->cpu, hinfo->cpu_len));
    RETERR(uint8_tobuffer(hinfo->os_len, target));
    return (mem_tobuffer(target, hinfo->os, hinfo->os_len));
}

static inline isc_result_t
tostruct_hinfo(ARGS_TOSTRUCT) {
    dns_rdata_hinfo_t *hinfo = target;
    isc_region_t region;

    REQUIRE(rdata->type == 13);
    REQUIRE(target != NULL);
    REQUIRE(rdata->length != 0);

    hinfo->common.rdclass = rdata->rdclass;
    hinfo->common.rdtype = rdata->type;
    ISC_LINK_INIT(&hinfo->common, link);

    dns_rdata_toregion(rdata, &region);
    hinfo->cpu_len = uint8_fromregion(&region);
    isc_region_consume(&region, 1);
    hinfo->cpu = mem_maybedup(mctx, region.base, hinfo->cpu_len);
    if (hinfo->cpu == NULL)
        return (ISC_R_NOMEMORY);
    isc_region_consume(&region, hinfo->cpu_len);

    hinfo->os_len = uint8_fromregion(&region);
    isc_region_consume(&region, 1);
    hinfo->os = mem_maybedup(mctx, region.base, hinfo->os_len);
    if (hinfo->os == NULL)
        goto cleanup;

    hinfo->mctx = mctx;
    return (ISC_R_SUCCESS);

 cleanup:
    if (mctx != NULL && hinfo->cpu != NULL)
        isc_mem_free(mctx, hinfo->cpu);
    return (ISC_R_NOMEMORY);
}

static inline void
freestruct_hinfo(ARGS_FREESTRUCT) {
    dns_rdata_hinfo_t *hinfo = source;

    REQUIRE(source != NULL);

    if (hinfo->mctx == NULL)
        return;

    if (hinfo->cpu != NULL)
        isc_mem_free(hinfo->mctx, hinfo->cpu);
    if (hinfo->os != NULL)
        isc_mem_free(hinfo->mctx, hinfo->os);
    hinfo->mctx = NULL;
}

static inline isc_result_t
additionaldata_hinfo(ARGS_ADDLDATA) {
    REQUIRE(rdata->type == 13);

    UNUSED(add);
    UNUSED(arg);
    UNUSED(rdata);

    return (ISC_R_SUCCESS);
}

static inline isc_result_t
digest_hinfo(ARGS_DIGEST) {
    isc_region_t r;

    REQUIRE(rdata->type == 13);

    dns_rdata_toregion(rdata, &r);

    return ((digest)(arg, &r));
}

#endif  /* RDATA_GENERIC_HINFO_13_C */