blob: fffa78113ee39274fd89b78375c16a245aa8e850 [file] [log] [blame]
// Copyright 2019 The Fuchsia Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include <stddef.h>
#include <stdint.h>
#include <zircon/compiler.h>
struct address {
int family;
unsigned scopeid;
uint8_t addr[16];
int sortkey;
/* The limit of 48 results is a non-sharp bound on the number of addresses
* that can fit in one 512-byte DNS packet full of v4 results and a second
* packet full of v6 results. Due to headers, the actual limit is lower. */
#define MAXADDRS 48
// This function is used by musl to perform an actual DNS lookup - it takes
// a name and address family, sends a DNS query, and fills out the addresses
// and canonical name with the response.
int _getaddrinfo_from_dns(struct address buf[MAXADDRS], char canon[256], const char* name,
int family);