cosmopolitan/libc/dns/consts.h

#ifndef COSMOPOLITAN_LIBC_DNS_CONSTS_H_
#define COSMOPOLITAN_LIBC_DNS_CONSTS_H_
#include "libc/sock/sock.h"
#if !(__ASSEMBLER__ + __LINKER__ + 0)

#define DNS_TYPE_A   0x01
#define DNS_TYPE_PTR 0x0c

#define DNS_CLASS_IN 1

#define kMinSockaddr4Size \
  (offsetof(struct sockaddr_in, sin_addr) + sizeof(struct in_addr))

#endif /* !(__ASSEMBLER__ + __LINKER__ + 0) */
#endif /* COSMOPOLITAN_LIBC_DNS_CONSTS_H_ */
Initial import 2020-06-15 14:18:57 +00:00			`#ifndef COSMOPOLITAN_LIBC_DNS_CONSTS_H_`
			`#define COSMOPOLITAN_LIBC_DNS_CONSTS_H_`
			`#include "libc/sock/sock.h"`
			`#if !(__ASSEMBLER__ + __LINKER__ + 0)`

Added getnameinfo with only name lookup (#172) Added necessary constants (DNS_TYPE_PTR, NI_NUMERICHOST etc.). Implementation of getnameinfo is similar to getaddrinfo, with internal functions: * ResolveDnsReverse: performs rDNS query and parses the PTR record * ResolveHostsReverse: reads /etc/hosts to map hostname to address Earlier, the HOSTS.txt would only need to be sorted at loading time, because the only kind of lookup was name -> address. Now since address -> name lookups are also possible, so the HostsTxt struct, the sorting method (and the related tests) was changed to reflect this. 2021-06-10 02:35:44 +00:00			`#define DNS_TYPE_A 0x01`
			`#define DNS_TYPE_PTR 0x0c`

Initial import 2020-06-15 14:18:57 +00:00			`#define DNS_CLASS_IN 1`

			`#define kMinSockaddr4Size \`
			`(offsetof(struct sockaddr_in, sin_addr) + sizeof(struct in_addr))`

			`#endif /* !(__ASSEMBLER__ + __LINKER__ + 0) */`
			`#endif /* COSMOPOLITAN_LIBC_DNS_CONSTS_H_ */`