diff options
Diffstat (limited to 'deps/node/deps/cares/src/ares_dns.h')
| -rw-r--r-- | deps/node/deps/cares/src/ares_dns.h | 103 |
1 files changed, 0 insertions, 103 deletions
diff --git a/deps/node/deps/cares/src/ares_dns.h b/deps/node/deps/cares/src/ares_dns.h deleted file mode 100644 index 79f993b9..00000000 --- a/deps/node/deps/cares/src/ares_dns.h +++ /dev/null @@ -1,103 +0,0 @@ -#ifndef HEADER_CARES_DNS_H -#define HEADER_CARES_DNS_H - -/* Copyright 1998, 2011 by the Massachusetts Institute of Technology. - * - * Permission to use, copy, modify, and distribute this - * software and its documentation for any purpose and without - * fee is hereby granted, provided that the above copyright - * notice appear in all copies and that both that copyright - * notice and this permission notice appear in supporting - * documentation, and that the name of M.I.T. not be used in - * advertising or publicity pertaining to distribution of the - * software without specific, written prior permission. - * M.I.T. makes no representations about the suitability of - * this software for any purpose. It is provided "as is" - * without express or implied warranty. - */ - -/* - * Macro DNS__16BIT reads a network short (16 bit) given in network - * byte order, and returns its value as an unsigned short. - */ -#define DNS__16BIT(p) ((unsigned short)((unsigned int) 0xffff & \ - (((unsigned int)((unsigned char)(p)[0]) << 8U) | \ - ((unsigned int)((unsigned char)(p)[1]))))) - -/* - * Macro DNS__32BIT reads a network long (32 bit) given in network - * byte order, and returns its value as an unsigned int. - */ -#define DNS__32BIT(p) ((unsigned int) \ - (((unsigned int)((unsigned char)(p)[0]) << 24U) | \ - ((unsigned int)((unsigned char)(p)[1]) << 16U) | \ - ((unsigned int)((unsigned char)(p)[2]) << 8U) | \ - ((unsigned int)((unsigned char)(p)[3])))) - -#define DNS__SET16BIT(p, v) (((p)[0] = (unsigned char)(((v) >> 8) & 0xff)), \ - ((p)[1] = (unsigned char)((v) & 0xff))) -#define DNS__SET32BIT(p, v) (((p)[0] = (unsigned char)(((v) >> 24) & 0xff)), \ - ((p)[1] = (unsigned char)(((v) >> 16) & 0xff)), \ - ((p)[2] = (unsigned char)(((v) >> 8) & 0xff)), \ - ((p)[3] = (unsigned char)((v) & 0xff))) - -#if 0 -/* we cannot use this approach on systems where we can't access 16/32 bit - data on un-aligned addresses */ -#define DNS__16BIT(p) ntohs(*(unsigned short*)(p)) -#define DNS__32BIT(p) ntohl(*(unsigned long*)(p)) -#define DNS__SET16BIT(p, v) *(unsigned short*)(p) = htons(v) -#define DNS__SET32BIT(p, v) *(unsigned long*)(p) = htonl(v) -#endif - -/* Macros for parsing a DNS header */ -#define DNS_HEADER_QID(h) DNS__16BIT(h) -#define DNS_HEADER_QR(h) (((h)[2] >> 7) & 0x1) -#define DNS_HEADER_OPCODE(h) (((h)[2] >> 3) & 0xf) -#define DNS_HEADER_AA(h) (((h)[2] >> 2) & 0x1) -#define DNS_HEADER_TC(h) (((h)[2] >> 1) & 0x1) -#define DNS_HEADER_RD(h) ((h)[2] & 0x1) -#define DNS_HEADER_RA(h) (((h)[3] >> 7) & 0x1) -#define DNS_HEADER_Z(h) (((h)[3] >> 4) & 0x7) -#define DNS_HEADER_RCODE(h) ((h)[3] & 0xf) -#define DNS_HEADER_QDCOUNT(h) DNS__16BIT((h) + 4) -#define DNS_HEADER_ANCOUNT(h) DNS__16BIT((h) + 6) -#define DNS_HEADER_NSCOUNT(h) DNS__16BIT((h) + 8) -#define DNS_HEADER_ARCOUNT(h) DNS__16BIT((h) + 10) - -/* Macros for constructing a DNS header */ -#define DNS_HEADER_SET_QID(h, v) DNS__SET16BIT(h, v) -#define DNS_HEADER_SET_QR(h, v) ((h)[2] |= (unsigned char)(((v) & 0x1) << 7)) -#define DNS_HEADER_SET_OPCODE(h, v) ((h)[2] |= (unsigned char)(((v) & 0xf) << 3)) -#define DNS_HEADER_SET_AA(h, v) ((h)[2] |= (unsigned char)(((v) & 0x1) << 2)) -#define DNS_HEADER_SET_TC(h, v) ((h)[2] |= (unsigned char)(((v) & 0x1) << 1)) -#define DNS_HEADER_SET_RD(h, v) ((h)[2] |= (unsigned char)((v) & 0x1)) -#define DNS_HEADER_SET_RA(h, v) ((h)[3] |= (unsigned char)(((v) & 0x1) << 7)) -#define DNS_HEADER_SET_Z(h, v) ((h)[3] |= (unsigned char)(((v) & 0x7) << 4)) -#define DNS_HEADER_SET_RCODE(h, v) ((h)[3] |= (unsigned char)((v) & 0xf)) -#define DNS_HEADER_SET_QDCOUNT(h, v) DNS__SET16BIT((h) + 4, v) -#define DNS_HEADER_SET_ANCOUNT(h, v) DNS__SET16BIT((h) + 6, v) -#define DNS_HEADER_SET_NSCOUNT(h, v) DNS__SET16BIT((h) + 8, v) -#define DNS_HEADER_SET_ARCOUNT(h, v) DNS__SET16BIT((h) + 10, v) - -/* Macros for parsing the fixed part of a DNS question */ -#define DNS_QUESTION_TYPE(q) DNS__16BIT(q) -#define DNS_QUESTION_CLASS(q) DNS__16BIT((q) + 2) - -/* Macros for constructing the fixed part of a DNS question */ -#define DNS_QUESTION_SET_TYPE(q, v) DNS__SET16BIT(q, v) -#define DNS_QUESTION_SET_CLASS(q, v) DNS__SET16BIT((q) + 2, v) - -/* Macros for parsing the fixed part of a DNS resource record */ -#define DNS_RR_TYPE(r) DNS__16BIT(r) -#define DNS_RR_CLASS(r) DNS__16BIT((r) + 2) -#define DNS_RR_TTL(r) DNS__32BIT((r) + 4) -#define DNS_RR_LEN(r) DNS__16BIT((r) + 8) - -/* Macros for constructing the fixed part of a DNS resource record */ -#define DNS_RR_SET_TYPE(r, v) DNS__SET16BIT(r, v) -#define DNS_RR_SET_CLASS(r, v) DNS__SET16BIT((r) + 2, v) -#define DNS_RR_SET_TTL(r, v) DNS__SET32BIT((r) + 4, v) -#define DNS_RR_SET_LEN(r, v) DNS__SET16BIT((r) + 8, v) - -#endif /* HEADER_CARES_DNS_H */ |