cosmopolitan/net/http/isripeip.c
Jōshin 394d998315
Fix vi modelines (#989)
At least in neovim, `│vi:` is not recognized as a modeline because it
has no preceding whitespace. After fixing this, opening a file yields
an error because `net` is not an option. (`noet`, however, is.)
2023-12-05 14:37:54 -08:00

34 lines
2.5 KiB
C

/*-*- mode:c;indent-tabs-mode:nil;c-basic-offset:2;tab-width:8;coding:utf-8 -*-│
│ vi: set noet 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 "net/http/ip.h"
/**
* Returns true if IPv4 address is managed by RIPE NCC.
*/
bool IsRipeIp(uint32_t x) {
int a = (x & 0xff000000) >> 24;
return a == 2 || a == 5 || a == 25 || a == 31 || a == 37 || a == 46 ||
a == 51 || a == 53 || a == 57 || a == 62 || a == 77 || a == 78 ||
a == 79 || a == 80 || a == 81 || a == 82 || a == 83 || a == 84 ||
a == 85 || a == 86 || a == 87 || a == 88 || a == 89 || a == 90 ||
a == 91 || a == 92 || a == 93 || a == 94 || a == 95 || a == 109 ||
a == 141 || a == 145 || a == 151 || a == 176 || a == 178 || a == 185 ||
a == 188 || a == 193 || a == 194 || a == 195 || a == 212 || a == 213 ||
a == 217;
}