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resolved: slight modernizations of resolved-dns-answer.c functions

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Let's follow our own coding style an initialized return values on all
cases of "success".
This commit is contained in:
Lennart Poettering 2020-10-30 17:53:34 +01:00
parent 7d44b1986b
commit b17b6a7401
2 changed files with 34 additions and 12 deletions
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42
src/resolve/resolved-dns-answer.c
View File

@ -249,10 +249,9 @@ int dns_answer_match_key(DnsAnswer *a, const DnsResourceKey *key, DnsAnswerFlags
int dns_answer_contains_nsec_or_nsec3(DnsAnswer *a) {
DnsResourceRecord *i;
DNS_ANSWER_FOREACH(i, a) {
DNS_ANSWER_FOREACH(i, a)
if (IN_SET(i->key->type, DNS_TYPE_NSEC, DNS_TYPE_NSEC3))
return true;
}
return false;
}
@ -294,7 +293,12 @@ int dns_answer_contains(DnsAnswer *answer, DnsResourceRecord *rr) {
return false;
}
int dns_answer_find_soa(DnsAnswer *a, const DnsResourceKey *key, DnsResourceRecord **ret, DnsAnswerFlags *flags) {
int dns_answer_find_soa(
DnsAnswer *a,
const DnsResourceKey *key,
DnsResourceRecord **ret,
DnsAnswerFlags *ret_flags) {
DnsResourceRecord *rr, *soa = NULL;
DnsAnswerFlags rr_flags, soa_flags = 0;
int r;
@ -303,7 +307,7 @@ int dns_answer_find_soa(DnsAnswer *a, const DnsResourceKey *key, DnsResourceReco
/* For a SOA record we can never find a matching SOA record */
if (key->type == DNS_TYPE_SOA)
return 0;
goto not_found;
DNS_ANSWER_FOREACH_FLAGS(rr, rr_flags, a) {
r = dns_resource_key_match_soa(key, rr->key);
@ -325,17 +329,30 @@ int dns_answer_find_soa(DnsAnswer *a, const DnsResourceKey *key, DnsResourceReco
}
if (!soa)
return 0;
goto not_found;
if (ret)
*ret = soa;
if (flags)
*flags = soa_flags;
if (ret_flags)
*ret_flags = soa_flags;
return 1;
not_found:
if (ret)
*ret = NULL;
if (ret_flags)
*ret_flags = 0;
return 0;
}
int dns_answer_find_cname_or_dname(DnsAnswer *a, const DnsResourceKey *key, DnsResourceRecord **ret, DnsAnswerFlags *flags) {
int dns_answer_find_cname_or_dname(
DnsAnswer *a,
const DnsResourceKey *key,
DnsResourceRecord **ret,
DnsAnswerFlags *ret_flags) {
DnsResourceRecord *rr;
DnsAnswerFlags rr_flags;
int r;
@ -353,12 +370,17 @@ int dns_answer_find_cname_or_dname(DnsAnswer *a, const DnsResourceKey *key, DnsR
if (r > 0) {
if (ret)
*ret = rr;
if (flags)
*flags = rr_flags;
if (ret_flags)
*ret_flags = rr_flags;
return 1;
}
}
if (ret)
*ret = NULL;
if (ret_flags)
*ret_flags = 0;
return 0;
}

4
src/resolve/resolved-dns-answer.h
View File

@ -49,8 +49,8 @@ int dns_answer_contains_nsec_or_nsec3(DnsAnswer *a);
int dns_answer_contains_zone_nsec3(DnsAnswer *answer, const char *zone);
int dns_answer_contains(DnsAnswer *answer, DnsResourceRecord *rr);
int dns_answer_find_soa(DnsAnswer *a, const DnsResourceKey *key, DnsResourceRecord **ret, DnsAnswerFlags *flags);
int dns_answer_find_cname_or_dname(DnsAnswer *a, const DnsResourceKey *key, DnsResourceRecord **ret, DnsAnswerFlags *flags);
int dns_answer_find_soa(DnsAnswer *a, const DnsResourceKey *key, DnsResourceRecord **ret, DnsAnswerFlags *ret_flags);
int dns_answer_find_cname_or_dname(DnsAnswer *a, const DnsResourceKey *key, DnsResourceRecord **ret, DnsAnswerFlags *ret_flags);
int dns_answer_merge(DnsAnswer *a, DnsAnswer *b, DnsAnswer **ret);
int dns_answer_extend(DnsAnswer **a, DnsAnswer *b);