mirror of
https://sourceware.org/git/glibc.git
synced 2024-11-21 20:40:05 +00:00
ec119972cb
Previous GCC versions do not support the C23 change that allows labels on declarations. Reviewed-by: Adhemerval Zanella <adhemerval.zanella@linaro.org>
127 lines
3.7 KiB
C
127 lines
3.7 KiB
C
/* Test for spurious timeouts with short 12-byte responses (bug 31890).
|
|
Copyright (C) 2024 Free Software Foundation, Inc.
|
|
This file is part of the GNU C Library.
|
|
|
|
The GNU C Library is free software; you can redistribute it and/or
|
|
modify it under the terms of the GNU Lesser General Public
|
|
License as published by the Free Software Foundation; either
|
|
version 2.1 of the License, or (at your option) any later version.
|
|
|
|
The GNU C Library is distributed in the hope that it will be useful,
|
|
but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
|
Lesser General Public License for more details.
|
|
|
|
You should have received a copy of the GNU Lesser General Public
|
|
License along with the GNU C Library; if not, see
|
|
<https://www.gnu.org/licenses/>. */
|
|
|
|
#include <resolv.h>
|
|
#include <support/check.h>
|
|
#include <support/resolv_test.h>
|
|
#include <support/check_nss.h>
|
|
|
|
/* The rcode in the initial response. */
|
|
static volatile int rcode;
|
|
|
|
static void
|
|
response (const struct resolv_response_context *ctx,
|
|
struct resolv_response_builder *b,
|
|
const char *qname, uint16_t qclass, uint16_t qtype)
|
|
{
|
|
switch (ctx->server_index)
|
|
{
|
|
case 0:
|
|
/* First server times out. */
|
|
{
|
|
struct resolv_response_flags flags = {.rcode = rcode};
|
|
resolv_response_init (b, flags);
|
|
}
|
|
break;
|
|
case 1:
|
|
/* Second server sends reply. */
|
|
resolv_response_init (b, (struct resolv_response_flags) {});
|
|
resolv_response_add_question (b, qname, qclass, qtype);
|
|
resolv_response_section (b, ns_s_an);
|
|
resolv_response_open_record (b, qname, qclass, qtype, 0);
|
|
switch (qtype)
|
|
{
|
|
case T_A:
|
|
{
|
|
char ipv4[4] = {192, 0, 2, 17};
|
|
resolv_response_add_data (b, &ipv4, sizeof (ipv4));
|
|
}
|
|
break;
|
|
case T_AAAA:
|
|
{
|
|
char ipv6[16]
|
|
= {0x20, 0x01, 0xd, 0xb8, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1};
|
|
resolv_response_add_data (b, &ipv6, sizeof (ipv6));
|
|
}
|
|
break;
|
|
default:
|
|
FAIL_EXIT1 ("unexpected TYPE%d query", qtype);
|
|
}
|
|
resolv_response_close_record (b);
|
|
break;
|
|
default:
|
|
FAIL_EXIT1 ("unexpected query to server %d", ctx->server_index);
|
|
}
|
|
}
|
|
|
|
static void
|
|
check_one (void)
|
|
{
|
|
|
|
/* The buggy 1-second query timeout results in 30 seconds of delay,
|
|
which triggers a test timeout failure. */
|
|
for (int i = 0; i < 10; ++i)
|
|
{
|
|
check_hostent ("www.example", gethostbyname ("www.example"),
|
|
"name: www.example\n"
|
|
"address: 192.0.2.17\n");
|
|
check_hostent ("www.example", gethostbyname2 ("www.example", AF_INET6),
|
|
"name: www.example\n"
|
|
"address: 2001:db8::1\n");
|
|
static const struct addrinfo hints =
|
|
{
|
|
.ai_family = AF_UNSPEC,
|
|
.ai_socktype = SOCK_STREAM,
|
|
};
|
|
struct addrinfo *ai;
|
|
int ret = getaddrinfo ("www.example", "80", &hints, &ai);
|
|
check_addrinfo ("www.example", ai, ret,
|
|
"address: STREAM/TCP 192.0.2.17 80\n"
|
|
"address: STREAM/TCP 2001:db8::1 80\n");
|
|
if (ret == 0)
|
|
freeaddrinfo (ai);
|
|
}
|
|
}
|
|
|
|
static int
|
|
do_test (void)
|
|
{
|
|
struct resolv_test *aux = resolv_test_start
|
|
((struct resolv_redirect_config)
|
|
{
|
|
.response_callback = response,
|
|
});
|
|
|
|
_res.options |= RES_SNGLKUP;
|
|
|
|
rcode = 2; /* SERVFAIL. */
|
|
check_one ();
|
|
|
|
rcode = 4; /* NOTIMP. */
|
|
check_one ();
|
|
|
|
rcode = 5; /* REFUSED. */
|
|
check_one ();
|
|
|
|
resolv_test_end (aux);
|
|
|
|
return 0;
|
|
}
|
|
|
|
#include <support/test-driver.c>
|