test harness for gethostbyname()/gethostbyaddr() and their internal bits.

XXX[1]: How can we avoid using hard-coded hosts for DNS
XXX[2]: How do we test NIS?
This commit is contained in:
christos 2013-08-16 15:29:45 +00:00
parent 02dd244775
commit 0f567347d0
4 changed files with 399 additions and 1 deletions

View File

@ -1,10 +1,11 @@
# $NetBSD: Makefile,v 1.7 2012/09/15 16:22:58 plunky Exp $
# $NetBSD: Makefile,v 1.8 2013/08/16 15:29:45 christos Exp $
.include <bsd.own.mk>
MKMAN= no
TESTS_SUBDIRS+= getaddrinfo
FILES+=hosts
TESTSDIR= ${TESTSBASE}/lib/libc/net
@ -19,12 +20,20 @@ aton_ether_subr.c: gen_ether_subr ${NETBSDSRCDIR}/sys/net/if_ethersubr.c
TESTS_SH+= t_nsdispatch
TESTS_SH+= t_protoent
TESTS_SH+= t_servent
TESTS_SH+= t_hostent
BINDIR= ${TESTSDIR}
PROGS+= h_nsd_recurse
PROGS+= h_protoent
PROGS+= h_servent
PROGS+= h_hostent
CPPFLAGS.h_hostent.c += -I${NETBSDSRCDIR}/lib/libc/net
# For easy debugging, without installing libc
#.PATH.c:${NETBSDSRCDIR}/lib/libc/net
#SRCS.h_hostent = h_hostent.c gethnamaddr.c
#DBG=-g3
LDADD.h_nsd_recurse+= -lpthread

View File

@ -0,0 +1,190 @@
/* $NetBSD: h_hostent.c,v 1.1 2013/08/16 15:29:45 christos Exp $ */
/*-
* Copyright (c) 2013 The NetBSD Foundation, Inc.
* All rights reserved.
*
* This code is derived from software contributed to The NetBSD Foundation
* by Christos Zoulas.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*/
#include <sys/cdefs.h>
__RCSID("$NetBSD: h_hostent.c,v 1.1 2013/08/16 15:29:45 christos Exp $");
#include <stdio.h>
#include <string.h>
#include <nsswitch.h>
#include <netdb.h>
#include <stdint.h>
#include <stdlib.h>
#include <unistd.h>
#include <err.h>
#include <netinet/in.h>
#include <sys/types.h>
#include <arpa/nameser.h>
#include <arpa/inet.h>
#include "hostent.h"
static void
phostent(const struct hostent *h)
{
size_t i;
char buf[1024];
const int af = h->h_length == NS_INADDRSZ ? AF_INET : AF_INET6;
printf("name=%s, length=%d, addrtype=%d, aliases=[",
h->h_name, h->h_length, h->h_addrtype);
for (i = 0; h->h_aliases[i]; i++)
printf("%s%s", i == 0 ? "" : " ", h->h_aliases[i]);
printf("] addr_list=[");
for (i = 0; h->h_addr_list[i]; i++)
printf("%s%s", i == 0 ? "" : " ", inet_ntop(af,
h->h_addr_list[i], buf, (socklen_t)sizeof(buf)));
printf("]\n");
}
static void
usage(void)
{
(void)fprintf(stderr, "Usage: %s [-f <hostsfile>] "
"[-t <any|dns|nis|files>] "
"[-46a] <name|address>\n", getprogname());
exit(EXIT_FAILURE);
}
static void
getby(int (*f)(void *, void *, va_list), struct getnamaddr *info, ...)
{
va_list ap;
int e;
va_start(ap, info);
e = (*f)(info, NULL, ap);
va_end(ap);
switch (e) {
case NS_SUCCESS:
phostent(info->hp);
break;
default:
printf("error %d\n", e);
break;
}
}
static void
geta(struct hostent *hp) {
if (hp == NULL)
printf("error %d\n", h_errno);
else
phostent(hp);
}
int
main(int argc, char *argv[])
{
int (*f)(void *, void *, va_list) = NULL;
const char *type = "any";
int c, af, e, byaddr, len;
struct hostent hent;
struct getnamaddr info;
char buf[4096];
af = AF_INET;
byaddr = 0;
len = 0;
info.hp = &hent;
info.buf = buf;
info.buflen = sizeof(buf);
info.he = &e;
while ((c = getopt(argc, argv, "46af:t:")) != -1) {
switch (c) {
case '4':
af = AF_INET;
break;
case '6':
af = AF_INET6;
break;
case 'a':
byaddr++;
break;
case 't':
type = optarg;
break;
case 'f':
_hf_sethostsfile(optarg);
break;
default:
usage();
}
}
argc -= optind;
argv += optind;
if (argc != 1)
usage();
switch (*type) {
case 'a':
break;
case 'd':
f = byaddr ? _dns_gethtbyaddr : _dns_gethtbyname;
break;
#ifdef YP
case 'n':
f = byaddr ? _yp_gethtbyaddr : _yp_gethtbyname;
break;
#endif
case 'f':
f = byaddr ? _hf_gethtbyaddr : _hf_gethtbyname;
break;
default:
errx(EXIT_FAILURE, "Unknown db type `%s'", type);
}
if (byaddr) {
struct in6_addr addr;
af = strchr(*argv, ':') ? AF_INET6 : AF_INET;
len = af == AF_INET ? NS_INADDRSZ : NS_IN6ADDRSZ;
if (inet_pton(af, *argv, &addr) == -1)
err(EXIT_FAILURE, "Can't parse `%s'", *argv);
if (*type == 'a')
geta(gethostbyaddr((const char *)&addr, len, af));
else
getby(f, &info, &addr, len, af);
} else {
if (*type == 'a')
geta(gethostbyname2(*argv, af));
else
getby(f, &info, *argv, len, af);
}
return 0;
}

11
tests/lib/libc/net/hosts Normal file
View File

@ -0,0 +1,11 @@
# $NetBSD: hosts,v 1.1 2013/08/16 15:29:45 christos Exp $
#
# Host Database
# This file should contain the addresses and aliases
# for local hosts that share this file.
# It is used only for "ifconfig" and other operations
# before the nameserver is started.
#
#
::1 localhost localhost. localhost.localdomain.
127.0.0.1 localhost localhost. localhost.localdomain.

View File

@ -0,0 +1,188 @@
# $NetBSD: t_hostent.sh,v 1.1 2013/08/16 15:29:45 christos Exp $
#
# Copyright (c) 2008 The NetBSD Foundation, Inc.
# All rights reserved.
#
# Redistribution and use in source and binary forms, with or without
# modification, are permitted provided that the following conditions
# are met:
# 1. Redistributions of source code must retain the above copyright
# notice, this list of conditions and the following disclaimer.
# 2. Redistributions in binary form must reproduce the above copyright
# notice, this list of conditions and the following disclaimer in the
# documentation and/or other materials provided with the distribution.
#
# THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
# ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
# TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
# PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
# BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
# CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
# SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
# INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
# CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
# ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
# POSSIBILITY OF SUCH DAMAGE.
#
n6="sixthavenue.astron.com"
a6="2620:106:3000:100:2e0:81ff:fe2f:e5d6"
ans6="name=$n6, length=16, addrtype=24, aliases=[] addr_list=[$a6]\n"
n4="sixthavenue.astron.com"
a4="208.77.212.99"
ans4="name=$n4, length=4, addrtype=2, aliases=[] addr_list=[$a4]\n"
l6="localhost"
al6="::1"
loc6="name=$l6, length=16, addrtype=24, aliases=[localhost. localhost.localdomain.] addr_list=[$al6]\n"
l4="localhost"
al4="127.0.0.1"
loc4="name=$l4, length=4, addrtype=2, aliases=[localhost. localhost.localdomain.] addr_list=[$al4]\n"
atf_test_case gethostbyname4
gethostbyname4_head()
{
atf_set "descr" "Checks gethostbyname2(3) for AF_INET (auto, as determined by nsswitch.conf(5)"
}
gethostbyname4_body()
{
atf_check -o inline:"$ans4" -x "$(atf_get_srcdir)/h_hostent -t auto -4 $n4"
}
atf_test_case gethostbyname6
gethostbyname6_head()
{
atf_set "descr" "Checks gethostbyname2(3) for AF_INET6 (auto, as determined by nsswitch.conf(5)"
}
gethostbyname6_body()
{
atf_check -o inline:"$ans6" -x "$(atf_get_srcdir)/h_hostent -t auto -6 $n6"
}
atf_test_case gethostbyaddr4
gethostbyaddr4_head()
{
atf_set "descr" "Checks gethostbyaddr(3) for AF_INET (auto, as determined by nsswitch.conf(5)"
}
gethostbyaddr4_body()
{
atf_check -o inline:"$ans4" -x "$(atf_get_srcdir)/h_hostent -t auto -a $a4"
}
atf_test_case gethostbyaddr6
gethostbyaddr6_head()
{
atf_set "descr" "Checks gethostbyaddr(3) for AF_INET6 (auto, as determined by nsswitch.conf(5)"
}
gethostbyaddr6_body()
{
atf_check -o inline:"$ans6" -x "$(atf_get_srcdir)/h_hostent -t auto -a $a6"
}
atf_test_case hostsbynamelookup4
hostsbynamelookup4_head()
{
atf_set "descr" "Checks /etc/hosts name lookup for AF_INET"
}
hostsbynamelookup4_body()
{
local dir=$(atf_get_srcdir)
atf_check -o inline:"$loc4" -x "$dir/h_hostent -f $dir/hosts -t file -4 $l4"
}
atf_test_case hostsbynamelookup6
hostsbynamelookup6_head()
{
atf_set "descr" "Checks /etc/hosts name lookup for AF_INET6"
}
hostsbynamelookup6_body()
{
local dir=$(atf_get_srcdir)
atf_check -o inline:"$loc6" -x "$dir/h_hostent -f $dir/hosts -t file -6 $l6"
}
atf_test_case hostsbyaddrlookup4
hostsbyaddrlookup4_head()
{
atf_set "descr" "Checks /etc/hosts address lookup for AF_INET"
}
hostsbyaddrlookup4_body()
{
local dir=$(atf_get_srcdir)
atf_check -o inline:"$loc4" -x "$dir/h_hostent -f $dir/hosts -t file -4 -a $al4"
}
atf_test_case hostsbyaddrlookup6
hostsbyaddrlookup6_head()
{
atf_set "descr" "Checks /etc/hosts address lookup for AF_INET6"
}
hostsbyaddrlookup6_body()
{
local dir=$(atf_get_srcdir)
atf_check -o inline:"$loc6" -x "$dir/h_hostent -f $dir/hosts -t file -6 -a $al6"
}
atf_test_case dnsbynamelookup4
dnsbynamelookup4_head()
{
atf_set "descr" "Checks DNS name lookup for AF_INET"
}
dnsbynamelookup4_body()
{
local dir=$(atf_get_srcdir)
atf_check -o inline:"$ans4" -x "$dir/h_hostent -t dns -4 $n4"
}
atf_test_case dnsbynamelookup6
dnsbynamelookup6_head()
{
atf_set "descr" "Checks DNS name lookup for AF_INET6"
}
dnsbynamelookup6_body()
{
local dir=$(atf_get_srcdir)
atf_check -o inline:"$ans6" -x "$dir/h_hostent -t dns -6 $n6"
}
atf_test_case dnsbyaddrlookup4
dnsbyaddrlookup4_head()
{
atf_set "descr" "Checks DNS address lookup for AF_INET"
}
dnsbyaddrlookup4_body()
{
local dir=$(atf_get_srcdir)
atf_check -o inline:"$ans4" -x "$dir/h_hostent -t dns -4 -a $a4"
}
atf_test_case dnsbyaddrlookup6
dnsbyaddrlookup6_head()
{
atf_set "descr" "Checks dns address lookup for AF_INET6"
}
dnsbyaddrlookup6_body()
{
local dir=$(atf_get_srcdir)
atf_check -o inline:"$ans6" -x "$dir/h_hostent -t dns -6 -a $a6"
}
atf_init_test_cases()
{
atf_add_test_case gethostbyname4
atf_add_test_case gethostbyname6
atf_add_test_case gethostbyaddr4
atf_add_test_case gethostbyaddr6
atf_add_test_case hostsbynamelookup4
atf_add_test_case hostsbynamelookup6
atf_add_test_case hostsbyaddrlookup4
atf_add_test_case hostsbyaddrlookup6
atf_add_test_case dnsbynamelookup4
atf_add_test_case dnsbynamelookup6
atf_add_test_case dnsbyaddrlookup4
atf_add_test_case dnsbyaddrlookup6
}