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resolved: add a call that dumps the contents of a DnsAnswer structure 

This is not used anywhere, but it's extremely useful when debugging.
This commit is contained in:
Lennart Poettering 2015-12-18 19:42:02 +01:00
parent d2579eec5e
commit 2615691003
2 changed files with 39 additions and 0 deletions
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37
src/resolve/resolved-dns-answer.c
View File

@ -639,3 +639,40 @@ int dns_answer_reserve_or_clone(DnsAnswer **a, unsigned n_free) {
return 0;
}
void dns_answer_dump(DnsAnswer *answer, FILE *f) {
DnsResourceRecord *rr;
DnsAnswerFlags flags;
int ifindex, r;
if (!f)
f = stdout;
DNS_ANSWER_FOREACH_FULL(rr, ifindex, flags, answer) {
_cleanup_free_ char *t = NULL;
fputc('\t', f);
r = dns_resource_record_to_string(rr, &t);
if (r < 0) {
log_oom();
continue;
}
fputs(t, f);
if (ifindex != 0 || flags & (DNS_ANSWER_AUTHENTICATED|DNS_ANSWER_CACHEABLE|DNS_ANSWER_SHARED_OWNER))
fputs("\t;", f);
if (ifindex != 0)
printf(" ifindex=%i", ifindex);
if (flags & DNS_ANSWER_AUTHENTICATED)
fputs(" authenticated", f);
if (flags & DNS_ANSWER_CACHEABLE)
fputs(" cachable", f);
if (flags & DNS_ANSWER_SHARED_OWNER)
fputs(" shared-owner", f);
fputc('\n', f);
}
}

2
src/resolve/resolved-dns-answer.h
View File

@ -84,6 +84,8 @@ static inline unsigned dns_answer_size(DnsAnswer *a) {
return a ? a->n_rrs : 0;
}
void dns_answer_dump(DnsAnswer *answer, FILE *f);
DEFINE_TRIVIAL_CLEANUP_FUNC(DnsAnswer*, dns_answer_unref);
#define _DNS_ANSWER_FOREACH(q, kk, a) \