From: Yuri Kanivetsky <yuri.kanivetsky@gmail.com>
To: musl@lists.openwall.com
Subject: [musl] getaddrinfo() fails for domains with no AAAA records (regression?)
Date: Mon, 19 Jul 2021 15:58:25 +0300 [thread overview]
Message-ID: <CAMhVC3bmXRW0WBnJNgVN66vHfLr-oz0PkWTOa9tiqTtJkMXbtQ@mail.gmail.com> (raw)
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Hi,
a.c:
#include <netdb.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <arpa/inet.h>
int
main(int argc, char *argv[])
{
struct addrinfo hints;
struct addrinfo *result, *rp;
int r;
char s[INET6_ADDRSTRLEN];
memset(&hints, 0, sizeof(hints));
if (argc > 2)
hints.ai_family = AF_INET;
hints.ai_socktype = SOCK_DGRAM;
r = getaddrinfo(argv[1], NULL, &hints, &result);
if (r != 0) {
fprintf(stderr, "getaddrinfo: %s\n", gai_strerror(r));
exit(EXIT_FAILURE);
}
for (rp = result; rp != NULL; rp = rp->ai_next) {
switch (rp->ai_family) {
case AF_INET:
inet_ntop(AF_INET, &((struct sockaddr_in
*)rp->ai_addr)->sin_addr, s, INET6_ADDRSTRLEN);
printf("AF_INET: %s\n", s);
break;
case AF_INET6:
inet_ntop(AF_INET6, &((struct sockaddr_in6
*)rp->ai_addr)->sin6_addr, s, INET6_ADDRSTRLEN);
printf("AF_INET6: %s\n", s);
break;
}
}
freeaddrinfo(result);
}
a.sh:
#!/bin/sh -eux
apk add build-base
cd app
gcc a.c
./a.out p2.x-yuri.site set_ai_family
./a.out p2.x-yuri.site
$ docker run --rm -itv $PWD:/app alpine:3.12 ./app/a.sh
...
+ ./a.out p2.x-yuri.site set_ai_family
AF_INET: 3.67.126.242
+ ./a.out p2.x-yuri.site
AF_INET: 3.67.126.242
$ docker run --rm -itv $PWD:/app alpine:3.13 ./app/a.sh
...
+ ./a.out p2.x-yuri.site set_ai_family
AF_INET: 3.67.126.242
+ ./a.out p2.x-yuri.site
getaddrinfo: Name does not resolve
$ docker run --rm -itv $PWD:/app alpine:3.14 ./app/a.sh
...
+ ./a.out p2.x-yuri.site set_ai_family
AF_INET: 3.67.126.242
+ ./a.out p2.x-yuri.site
getaddrinfo: Name does not resolve
Regards,
Yuri
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next reply other threads:[~2021-07-19 13:00 UTC|newest]
Thread overview: 13+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-07-19 12:58 Yuri Kanivetsky [this message]
2021-07-19 13:22 ` Florian Weimer
2021-07-19 18:51 ` Yuri Kanivetsky
2021-07-19 19:29 ` Shiz
2021-07-19 19:47 ` Érico Nogueira
2021-07-19 21:08 ` Rich Felker
2021-07-19 21:07 ` Olivier A.
2021-07-19 21:12 ` Rich Felker
2021-07-23 20:25 ` Yuri Kanivetsky
2021-07-23 20:33 ` Yuri Kanivetsky
2021-07-23 20:45 ` Laurent Bercot
2021-07-27 14:21 ` Yuri Kanivetsky
2021-07-27 14:41 ` Rich Felker
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