cosmopolitan/test/libc/dns/resolvehostsreverse_test.c
Jōshin e16a7d8f3b
flip et / noet in modelines
`et` means `expandtab`.

```sh
rg 'vi: .* :vi' -l -0 | \
  xargs -0 sed -i '' 's/vi: \(.*\) et\(.*\)  :vi/vi: \1 xoet\2:vi/'
rg 'vi: .*  :vi' -l -0 | \
  xargs -0 sed -i '' 's/vi: \(.*\)noet\(.*\):vi/vi: \1et\2  :vi/'
rg 'vi: .*  :vi' -l -0 | \
  xargs -0 sed -i '' 's/vi: \(.*\)xoet\(.*\):vi/vi: \1noet\2:vi/'
```
2023-12-07 22:17:11 -05:00

80 lines
4 KiB
C

/*-*- mode:c;indent-tabs-mode:nil;c-basic-offset:2;tab-width:8;coding:utf-8 -*-│
│ vi: set et ft=c ts=2 sts=2 sw=2 fenc=utf-8 :vi │
╞══════════════════════════════════════════════════════════════════════════════╡
│ Copyright 2021 Justine Alexandra Roberts Tunney │
│ │
│ Permission to use, copy, modify, and/or distribute this software for │
│ any purpose with or without fee is hereby granted, provided that the │
│ above copyright notice and this permission notice appear in all copies. │
│ │
│ THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL │
│ WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED │
│ WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE │
│ AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL │
│ DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR │
│ PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER │
│ TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR │
│ PERFORMANCE OF THIS SOFTWARE. │
╚─────────────────────────────────────────────────────────────────────────────*/
#include "libc/dns/hoststxt.h"
#include "libc/mem/mem.h"
#include "libc/str/str.h"
#include "libc/sysv/consts/af.h"
#include "libc/testlib/testlib.h"
TEST(ParseHostsTxt, testNotFound) {
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";
char name[256];
uint8_t ip[4] = {127, 0, 113, 1};
struct HostsTxt *ht = calloc(1, sizeof(struct HostsTxt));
FILE *f = fmemopen(NULL, BUFSIZ, "r+");
ASSERT_EQ(1, fwrite(kInput, strlen(kInput), 1, f));
rewind(f);
ASSERT_EQ(0, ParseHostsTxt(ht, f));
ASSERT_EQ(4, ht->entries.i);
ASSERT_EQ(0, ResolveHostsReverse(ht, AF_INET, ip, name, sizeof(name)));
FreeHostsTxt(&ht);
fclose(f);
}
TEST(ParseHostsTxt, testFirstLookup) {
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";
char name[256];
uint8_t ip[4] = {203, 0, 113, 1};
struct HostsTxt *ht = calloc(1, sizeof(struct HostsTxt));
FILE *f = fmemopen(NULL, BUFSIZ, "r+");
ASSERT_EQ(1, fwrite(kInput, strlen(kInput), 1, f));
rewind(f);
ASSERT_EQ(0, ParseHostsTxt(ht, f));
ASSERT_EQ(4, ht->entries.i);
ASSERT_EQ(1, ResolveHostsReverse(ht, AF_INET, ip, name, sizeof(name)));
EXPECT_STREQ("lol.example", name);
FreeHostsTxt(&ht);
fclose(f);
}
TEST(ParseHostsTxt, testSecondLookup) {
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";
char name[256];
uint8_t ip[4] = {203, 0, 113, 2};
struct HostsTxt *ht = calloc(1, sizeof(struct HostsTxt));
FILE *f = fmemopen(NULL, BUFSIZ, "r+");
ASSERT_EQ(1, fwrite(kInput, strlen(kInput), 1, f));
rewind(f);
ASSERT_EQ(0, ParseHostsTxt(ht, f));
ASSERT_EQ(4, ht->entries.i);
ASSERT_EQ(1, ResolveHostsReverse(ht, AF_INET, ip, name, sizeof(name)));
EXPECT_STREQ("cat.example", name);
FreeHostsTxt(&ht);
fclose(f);
}