cosmopolitan/test/libc/dns/parsehoststxt_test.c

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2020-06-15 14:18:57 +00:00
/*-*- mode:c;indent-tabs-mode:nil;c-basic-offset:2;tab-width:8;coding:utf-8 -*-│
vi: set net ft=c ts=2 sts=2 sw=2 fenc=utf-8 :vi
Copyright 2020 Justine Alexandra Roberts Tunney
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; version 2 of the License.
This program 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
General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
02110-1301 USA
*/
#include "libc/dns/hoststxt.h"
#include "libc/mem/mem.h"
#include "libc/sock/sock.h"
#include "libc/stdio/stdio.h"
#include "libc/str/str.h"
#include "libc/sysv/consts/af.h"
#include "libc/testlib/testlib.h"
static const char *ParseIp(unsigned char ip[4]) {
static char g_ipbuf[16];
return inet_ntop(AF_INET, ip, g_ipbuf, sizeof(g_ipbuf));
}
TEST(parsehoststxt, testEmpty) {
struct HostsTxt *ht = calloc(1, sizeof(struct HostsTxt));
FILE *f = fmemopen(NULL, BUFSIZ, "r+");
ASSERT_EQ(0, parsehoststxt(ht, f));
ASSERT_EQ(0, ht->entries.i);
freehoststxt(&ht);
fclose(f);
}
TEST(parsehoststxt, testCorrectlyTokenizesAndSorts) {
const char kInput[] =
"# this is a comment\n"
"# IP HOST1 HOST2\n"
"203.0.113.1 lol.example. lol\n"
"203.0.113.2 cat.example. cat\n";
struct HostsTxt *ht = calloc(1, sizeof(struct HostsTxt));
FILE *f = fmemopen(NULL, BUFSIZ, "r+");
ASSERT_EQ(strlen(kInput), fwrite(kInput, 1, strlen(kInput), f));
ASSERT_EQ(0, parsehoststxt(ht, f));
sorthoststxt(ht);
ASSERT_EQ(4, ht->entries.i);
EXPECT_STREQ("cat.example.", &ht->strings.p[ht->entries.p[0].name]);
EXPECT_STREQ("cat.example.", &ht->strings.p[ht->entries.p[0].canon]);
EXPECT_STREQ("203.0.113.2", ParseIp(ht->entries.p[0].ip));
EXPECT_STREQ("lol.example.", &ht->strings.p[ht->entries.p[1].name]);
EXPECT_STREQ("lol.example.", &ht->strings.p[ht->entries.p[1].canon]);
EXPECT_STREQ("203.0.113.1", ParseIp(ht->entries.p[1].ip));
EXPECT_STREQ("cat", &ht->strings.p[ht->entries.p[2].name]);
EXPECT_STREQ("cat.example.", &ht->strings.p[ht->entries.p[2].canon]);
EXPECT_STREQ("203.0.113.2", ParseIp(ht->entries.p[2].ip));
EXPECT_STREQ("lol", &ht->strings.p[ht->entries.p[3].name]);
EXPECT_STREQ("lol.example.", &ht->strings.p[ht->entries.p[3].canon]);
EXPECT_STREQ("203.0.113.1", ParseIp(ht->entries.p[3].ip));
freehoststxt(&ht);
fclose(f);
}
TEST(parsehoststxt, testIpv6_isIgnored) {
const char kInput[] =
"::1 boop\n"
"203.0.113.2 cat # ignore me\n";
struct HostsTxt *ht = calloc(1, sizeof(struct HostsTxt));
FILE *f = fmemopen(NULL, BUFSIZ, "r+");
ASSERT_EQ(strlen(kInput), fwrite(kInput, 1, strlen(kInput), f));
ASSERT_EQ(0, parsehoststxt(ht, f));
ASSERT_EQ(1, ht->entries.i);
EXPECT_STREQ("cat", &ht->strings.p[ht->entries.p[0].name]);
EXPECT_STREQ("cat", &ht->strings.p[ht->entries.p[0].canon]);
EXPECT_STREQ("203.0.113.2", ParseIp(ht->entries.p[0].ip));
freehoststxt(&ht);
fclose(f);
}