qdnslookup_unix.cpp File Reference

(c272119847220dcf239ca8a9908867376d6dca30)

#include "qdnslookup_p.h"
#include <qendian.h>
#include <qrandom.h>
#include <qspan.h>
#include <qurl.h>
#include <qvarlengtharray.h>
#include <private/qnativesocketengine_p.h>
#include <private/qtnetwork-config_p.h>
#include <sys/types.h>
#include <netinet/in.h>
#include <arpa/nameser.h>
#include <errno.h>
#include <resolv.h>
#include <array>

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Macros
#define	T_OPT   ns_t_opt

Typedefs
using	ReplyBuffer = QDnsLookupRunnable::ReplyBuffer
using	QueryBuffer = std::array<unsigned char, (QueryBufferSize + 15) / 16 * 16>
using	Cache = QList<QDnsCachedName>

Functions
	Q_DECLARE_TYPEINFO (QDnsCachedName, Q_RELOCATABLE_TYPE)
static int	prepareQueryBuffer (QueryBuffer &buffer, const char *label, ns_type type)
static int	local_res_nsend (net_handle_t network, const uint8_t *msg, size_t msglen, uint32_t flags) __attribute__((weakref("android_res_nsend")))
static int	local_res_nresult (int fd, int *rcode, uint8_t *answer, size_t anslen) __attribute__((weakref("android_res_nresult")))
bool	qt_androidDnsResolverAvailable ()
static int	sendStandardDns (QDnsLookupReply *reply, QSpan< unsigned char > qbuffer, ReplyBuffer &buffer, const QHostAddress &nameserver)

Variables
static constexpr unsigned char	Edns0Record []
static constexpr qsizetype	QueryBufferSize

Macro Definition Documentation

T_OPT

#define T_OPT   ns_t_opt

Definition at line 39 of file qdnslookup_unix.cpp.

Typedef Documentation

Cache

typedef QList< QDnsCachedName > Cache = QList<QDnsCachedName>

Definition at line 72 of file qdnslookup_unix.cpp.

QueryBuffer

typedef std::array< unsigned char,(QueryBufferSize+15)/16 *16 > QueryBuffer = std::array<unsigned char, (QueryBufferSize + 15) / 16 * 16>

Definition at line 61 of file qdnslookup_unix.cpp.

ReplyBuffer

using ReplyBuffer = QDnsLookupRunnable::ReplyBuffer

Definition at line 45 of file qdnslookup_unix.cpp.

Function Documentation

local_res_nresult()

int local_res_nresult ( int fd, int * rcode, uint8_t * answer, size_t anslen )

static

local_res_nsend()

int local_res_nsend ( net_handle_t network, const uint8_t * msg, size_t msglen, uint32_t flags )

static

prepareQueryBuffer()

int prepareQueryBuffer ( QueryBuffer & buffer, const char * label, ns_type type )

static

Definition at line 287 of file qdnslookup_unix.cpp.

References Edns0Record.

Q_DECLARE_TYPEINFO()

Q_DECLARE_TYPEINFO	(	QDnsCachedName	,
		Q_RELOCATABLE_TYPE	)

qt_androidDnsResolverAvailable()

bool qt_androidDnsResolverAvailable

(

)

Definition at line 324 of file qdnslookup_unix.cpp.

Referenced by sendStandardDns().

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sendStandardDns()

int sendStandardDns ( QDnsLookupReply * reply, QSpan< unsigned char > qbuffer, ReplyBuffer & buffer, const QHostAddress & nameserver )

static

Definition at line 329 of file qdnslookup_unix.cpp.

References QDnsLookupReply::makeResolverSystemError(), QDnsLookupReply::makeTimeoutError(), and qt_androidDnsResolverAvailable().

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Variable Documentation

Edns0Record

constexpr unsigned char Edns0Record

staticconstexpr

Initial value:

                                           = {
    0x00,                                           
    T_OPT >> 8, T_OPT & 0xff,                       
    ReplyBuffer::PreallocatedSize >> 8, ReplyBuffer::PreallocatedSize & 0xff,   
    NOERROR,                                        
    0,                                              
    0x00, 0x00,                                     
    0x00, 0x00,                                     
}

Definition at line 48 of file qdnslookup_unix.cpp.

Referenced by prepareQueryBuffer().

QueryBufferSize

constexpr qsizetype QueryBufferSize

staticconstexpr

Initial value:

                                   =
HFIXEDSZ + QFIXEDSZ + MAXCDNAME + 1 + sizeof(Edns0Record)

Definition at line 59 of file qdnslookup_unix.cpp.