mirrors/cosmopolitan
1
0
Fork 0
mirror of https://github.com/jart/cosmopolitan.git synced 2025-07-05 10:48:29 +00:00
Code Issues Projects Releases Packages Wiki Activity Actions

Get Cosmopolitan into releasable state

Browse source 
A new rollup tool now exists for flattening out the headers in a way
that works better for our purposes than cpp. A lot of the API clutter
has been removed. APIs that aren't a sure thing in terms of general
recommendation are now marked internal.

There's now a smoke test for the amalgamation archive and gigantic
header file. So we can now guarantee you can use this project on the
easiest difficulty setting without the gigantic repository.

A website is being created, which is currently a work in progress:
https://justine.storage.googleapis.com/cosmopolitan/index.html
This commit is contained in:
Justine Tunney 2020-11-25 08:19:00 -08:00
parent dba7552c1e
commit ea0b5d9d1c
775 changed files with 6864 additions and 3963 deletions
Download patch file Download diff file Expand all files Collapse all files

70
libc/sock/ipclassify.internal.h Normal file
View file

@ -0,0 +1,70 @@
#ifndef COSMOPOLITAN_LIBC_SOCK_IPCLASSIFY_H_
#define COSMOPOLITAN_LIBC_SOCK_IPCLASSIFY_H_
#ifndef __STRICT_ANSI__
#include "libc/sock/sock.h"
#include "libc/sysv/consts/af.h"
#include "libc/sysv/consts/inaddr.h"
#include "libc/sysv/errfuns.h"
#if !(__ASSEMBLER__ + __LINKER__ + 0)
COSMOPOLITAN_C_START_
/**
* Returns true if address is part of standardized test-only subnet.
*/
forceinline bool istestip(int sin_family, void *sin_addr) {
if (sin_family == AF_INET) {
uint32_t ip4net24 = ntohl(*(const uint32_t *)sin_addr) & 0xffffff00u;
if (ip4net24 == INADDR_TESTNET1 || ip4net24 == INADDR_TESTNET2 ||
ip4net24 == INADDR_TESTNET3) {
return true;
}
} else {
eafnosupport();
}
return false;
}
/**
* Returns true if address is part of a local-only subnet.
*/
forceinline bool islocalip(int sin_family, void *sin_addr) {
if (sin_family == AF_INET) {
uint32_t ip4net8 = ntohl(*(const uint32_t *)sin_addr) & 0xff000000u;
if (ip4net8 == 0x7f000000u) {
return true;
}
} else {
eafnosupport();
}
return false;
}
/**
* Returns true if address is part of a well-known private subnet.
*/
forceinline bool isprivateip(int sin_family, void *sin_addr) {
if (sin_family == AF_INET) {
uint32_t ip4 = ntohl(*(const uint32_t *)sin_addr);
if ((0x0a000000u <= ip4 && ip4 <= 0x0affffffu) /* 10.0.0.0/8 */ ||
(0xac100000u <= ip4 && ip4 <= 0xac1fffffu) /* 172.16.0.0/12 */ ||
(0xc0a80000u <= ip4 && ip4 <= 0xc0a8ffffu) /* 192.168.0.0/16 */) {
return true;
}
} else {
eafnosupport();
}
return false;
}
/**
* Returns true if address is most likely part of the public Internet.
*/
forceinline bool ispublicip(int sin_family, void *sin_addr) {
return !islocalip(sin_family, sin_addr) &&
!isprivateip(sin_family, sin_addr) && !istestip(sin_family, sin_addr);
}
COSMOPOLITAN_C_END_
#endif /* !(__ASSEMBLER__ + __LINKER__ + 0) */
#endif /* !ANSI */
#endif /* COSMOPOLITAN_LIBC_SOCK_IPCLASSIFY_H_ */