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bind9/lib/dns/rdata/generic/minfo_14.c
Ondřej Surý 66af8713d8 lib/dns/rdata/*/*.c: Silence false positive nullPointerRedundantCheck warning from Cppcheck 
Cppcheck gets confused by:

void bar(void *arg) {
    foo *data = arg;
    REQUIRE(source != NULL);
    REQUIRE(data->member != NULL);
}

and for consistency the DbC check needs to be changed to

void bar(void *arg) {
    foo *data = arg;
    REQUIRE(data != NULL);
    REQUIRE(data->member != NULL);
}
2019-10-03 09:04:26 +02:00

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/*
* Copyright (C) Internet Systems Consortium, Inc. ("ISC")
*
* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/.
*
* See the COPYRIGHT file distributed with this work for additional
* information regarding copyright ownership.
*/
#ifndef RDATA_GENERIC_MINFO_14_C
#define RDATA_GENERIC_MINFO_14_C
#define RRTYPE_MINFO_ATTRIBUTES (0)
static inline isc_result_t
fromtext_minfo(ARGS_FROMTEXT) {
isc_token_t token;
dns_name_t name;
isc_buffer_t buffer;
int i;
bool ok;
REQUIRE(type == dns_rdatatype_minfo);
UNUSED(type);
UNUSED(rdclass);
UNUSED(callbacks);
if (origin == NULL)
origin = dns_rootname;
for (i = 0; i < 2; i++) {
RETERR(isc_lex_getmastertoken(lexer, &token,
isc_tokentype_string,
false));
dns_name_init(&name, NULL);
buffer_fromregion(&buffer, &token.value.as_region);
RETTOK(dns_name_fromtext(&name, &buffer, origin,
options, target));
ok = true;
if ((options & DNS_RDATA_CHECKNAMES) != 0)
ok = dns_name_ismailbox(&name);
if (!ok && (options & DNS_RDATA_CHECKNAMESFAIL) != 0)
RETTOK(DNS_R_BADNAME);
if (!ok && callbacks != NULL)
warn_badname(&name, lexer, callbacks);
}
return (ISC_R_SUCCESS);
}
static inline isc_result_t
totext_minfo(ARGS_TOTEXT) {
isc_region_t region;
dns_name_t rmail;
dns_name_t email;
dns_name_t prefix;
bool sub;
REQUIRE(rdata->type == dns_rdatatype_minfo);
REQUIRE(rdata->length != 0);
dns_name_init(&rmail, NULL);
dns_name_init(&email, NULL);
dns_name_init(&prefix, NULL);
dns_rdata_toregion(rdata, &region);
dns_name_fromregion(&rmail, &region);
isc_region_consume(&region, rmail.length);
dns_name_fromregion(&email, &region);
isc_region_consume(&region, email.length);
sub = name_prefix(&rmail, tctx->origin, &prefix);
RETERR(dns_name_totext(&prefix, sub, target));
RETERR(str_totext(" ", target));
sub = name_prefix(&email, tctx->origin, &prefix);
return (dns_name_totext(&prefix, sub, target));
}
static inline isc_result_t
fromwire_minfo(ARGS_FROMWIRE) {
dns_name_t rmail;
dns_name_t email;
REQUIRE(type == dns_rdatatype_minfo);
UNUSED(type);
UNUSED(rdclass);
dns_decompress_setmethods(dctx, DNS_COMPRESS_GLOBAL14);
dns_name_init(&rmail, NULL);
dns_name_init(&email, NULL);
RETERR(dns_name_fromwire(&rmail, source, dctx, options, target));
return (dns_name_fromwire(&email, source, dctx, options, target));
}
static inline isc_result_t
towire_minfo(ARGS_TOWIRE) {
isc_region_t region;
dns_name_t rmail;
dns_name_t email;
dns_offsets_t roffsets;
dns_offsets_t eoffsets;
REQUIRE(rdata->type == dns_rdatatype_minfo);
REQUIRE(rdata->length != 0);
dns_compress_setmethods(cctx, DNS_COMPRESS_GLOBAL14);
dns_name_init(&rmail, roffsets);
dns_name_init(&email, eoffsets);
dns_rdata_toregion(rdata, &region);
dns_name_fromregion(&rmail, &region);
isc_region_consume(&region, name_length(&rmail));
RETERR(dns_name_towire(&rmail, cctx, target));
dns_name_fromregion(&rmail, &region);
isc_region_consume(&region, rmail.length);
return (dns_name_towire(&rmail, cctx, target));
}
static inline int
compare_minfo(ARGS_COMPARE) {
isc_region_t region1;
isc_region_t region2;
dns_name_t name1;
dns_name_t name2;
int order;
REQUIRE(rdata1->type == rdata2->type);
REQUIRE(rdata1->rdclass == rdata2->rdclass);
REQUIRE(rdata1->type == dns_rdatatype_minfo);
REQUIRE(rdata1->length != 0);
REQUIRE(rdata2->length != 0);
dns_name_init(&name1, NULL);
dns_name_init(&name2, NULL);
dns_rdata_toregion(rdata1, &region1);
dns_rdata_toregion(rdata2, &region2);
dns_name_fromregion(&name1, &region1);
dns_name_fromregion(&name2, &region2);
order = dns_name_rdatacompare(&name1, &name2);
if (order != 0)
return (order);
isc_region_consume(&region1, name_length(&name1));
isc_region_consume(&region2, name_length(&name2));
dns_name_init(&name1, NULL);
dns_name_init(&name2, NULL);
dns_name_fromregion(&name1, &region1);
dns_name_fromregion(&name2, &region2);
order = dns_name_rdatacompare(&name1, &name2);
return (order);
}
static inline isc_result_t
fromstruct_minfo(ARGS_FROMSTRUCT) {
dns_rdata_minfo_t *minfo = source;
isc_region_t region;
REQUIRE(type == dns_rdatatype_minfo);
REQUIRE(minfo != NULL);
REQUIRE(minfo->common.rdtype == type);
REQUIRE(minfo->common.rdclass == rdclass);
UNUSED(type);
UNUSED(rdclass);
dns_name_toregion(&minfo->rmailbox, &region);
RETERR(isc_buffer_copyregion(target, &region));
dns_name_toregion(&minfo->emailbox, &region);
return (isc_buffer_copyregion(target, &region));
}
static inline isc_result_t
tostruct_minfo(ARGS_TOSTRUCT) {
dns_rdata_minfo_t *minfo = target;
isc_region_t region;
dns_name_t name;
isc_result_t result;
REQUIRE(rdata->type == dns_rdatatype_minfo);
REQUIRE(minfo != NULL);
REQUIRE(rdata->length != 0);
minfo->common.rdclass = rdata->rdclass;
minfo->common.rdtype = rdata->type;
ISC_LINK_INIT(&minfo->common, link);
dns_name_init(&name, NULL);
dns_rdata_toregion(rdata, &region);
dns_name_fromregion(&name, &region);
dns_name_init(&minfo->rmailbox, NULL);
RETERR(name_duporclone(&name, mctx, &minfo->rmailbox));
isc_region_consume(&region, name_length(&name));
dns_name_fromregion(&name, &region);
dns_name_init(&minfo->emailbox, NULL);
result = name_duporclone(&name, mctx, &minfo->emailbox);
if (result != ISC_R_SUCCESS)
goto cleanup;
minfo->mctx = mctx;
return (ISC_R_SUCCESS);
cleanup:
if (mctx != NULL)
dns_name_free(&minfo->rmailbox, mctx);
return (ISC_R_NOMEMORY);
}
static inline void
freestruct_minfo(ARGS_FREESTRUCT) {
dns_rdata_minfo_t *minfo = source;
REQUIRE(minfo != NULL);
REQUIRE(minfo->common.rdtype == dns_rdatatype_minfo);
if (minfo->mctx == NULL)
return;
dns_name_free(&minfo->rmailbox, minfo->mctx);
dns_name_free(&minfo->emailbox, minfo->mctx);
minfo->mctx = NULL;
}
static inline isc_result_t
additionaldata_minfo(ARGS_ADDLDATA) {
REQUIRE(rdata->type == dns_rdatatype_minfo);
UNUSED(rdata);
UNUSED(add);
UNUSED(arg);
return (ISC_R_SUCCESS);
}
static inline isc_result_t
digest_minfo(ARGS_DIGEST) {
isc_region_t r;
dns_name_t name;
isc_result_t result;
REQUIRE(rdata->type == dns_rdatatype_minfo);
dns_rdata_toregion(rdata, &r);
dns_name_init(&name, NULL);
dns_name_fromregion(&name, &r);
result = dns_name_digest(&name, digest, arg);
if (result != ISC_R_SUCCESS)
return (result);
isc_region_consume(&r, name_length(&name));
dns_name_init(&name, NULL);
dns_name_fromregion(&name, &r);
return (dns_name_digest(&name, digest, arg));
}
static inline bool
checkowner_minfo(ARGS_CHECKOWNER) {
REQUIRE(type == dns_rdatatype_minfo);
UNUSED(name);
UNUSED(type);
UNUSED(rdclass);
UNUSED(wildcard);
return (true);
}
static inline bool
checknames_minfo(ARGS_CHECKNAMES) {
isc_region_t region;
dns_name_t name;
REQUIRE(rdata->type == dns_rdatatype_minfo);
UNUSED(owner);
dns_rdata_toregion(rdata, &region);
dns_name_init(&name, NULL);
dns_name_fromregion(&name, &region);
if (!dns_name_ismailbox(&name)) {
if (bad != NULL)
dns_name_clone(&name, bad);
return (false);
}
isc_region_consume(&region, name_length(&name));
dns_name_fromregion(&name, &region);
if (!dns_name_ismailbox(&name)) {
if (bad != NULL)
dns_name_clone(&name, bad);
return (false);
}
return (true);
}
static inline int
casecompare_minfo(ARGS_COMPARE) {
return (compare_minfo(rdata1, rdata2));
}
#endif /* RDATA_GENERIC_MINFO_14_C */
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