kernel/qdnslookup_unix.cpp

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1/**************************************************************************** -
2** -
3** Copyright (C) 2012 Jeremy Lainé <jeremy.laine@m4x.org> -
4** Contact: http://www.qt-project.org/legal -
5** -
6** This file is part of the QtNetwork module of the Qt Toolkit. -
7** -
8** $QT_BEGIN_LICENSE:LGPL$ -
9** Commercial License Usage -
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15** use the contact form at http://qt.digia.com/contact-us. -
16** -
17** GNU Lesser General Public License Usage -
18** Alternatively, this file may be used under the terms of the GNU Lesser -
19** General Public License version 2.1 as published by the Free Software -
20** Foundation and appearing in the file LICENSE.LGPL included in the -
21** packaging of this file. Please review the following information to -
22** ensure the GNU Lesser General Public License version 2.1 requirements -
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25** In addition, as a special exception, Digia gives you certain additional -
26** rights. These rights are described in the Digia Qt LGPL Exception -
27** version 1.1, included in the file LGPL_EXCEPTION.txt in this package. -
28** -
29** GNU General Public License Usage -
30** Alternatively, this file may be used under the terms of the GNU -
31** General Public License version 3.0 as published by the Free Software -
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38** $QT_END_LICENSE$ -
39** -
40****************************************************************************/ -
41 -
42#include "qdnslookup_p.h" -
43 -
44#include <qlibrary.h> -
45#include <qscopedpointer.h> -
46#include <qurl.h> -
47#include <private/qmutexpool_p.h> -
48 -
49#include <sys/types.h> -
50#include <netinet/in.h> -
51#include <arpa/nameser.h> -
52#include <arpa/nameser_compat.h> -
53#include <resolv.h> -
54 -
55QT_BEGIN_NAMESPACE -
56 -
57#ifndef QT_NO_LIBRARY -
58 -
59typedef int (*dn_expand_proto)(const unsigned char *, const unsigned char *, const unsigned char *, char *, int); -
60static dn_expand_proto local_dn_expand = 0; -
61typedef void (*res_nclose_proto)(res_state); -
62static res_nclose_proto local_res_nclose = 0; -
63typedef int (*res_ninit_proto)(res_state); -
64static res_ninit_proto local_res_ninit = 0; -
65typedef int (*res_nquery_proto)(res_state, const char *, int, int, unsigned char *, int); -
66static res_nquery_proto local_res_nquery = 0; -
67 -
68// Custom deleter to close resolver state. -
69 -
70struct QDnsLookupStateDeleter -
71{ -
72 static inline void cleanup(struct __res_state *pointer) -
73 { -
74 local_res_nclose(pointer);
executed (the execution status of this line is deduced): local_res_nclose(pointer);
-
75 }
executed: }
Execution Count:41
41
76}; -
77 -
78static void resolveLibrary() -
79{ -
80 QLibrary lib(QLatin1String("resolv"));
executed (the execution status of this line is deduced): QLibrary lib(QLatin1String("resolv"));
-
81 if (!lib.load())
partially evaluated: !lib.load()
TRUEFALSE
no
Evaluation Count:0
yes
Evaluation Count:2
0-2
82 return;
never executed: return;
0
83 -
84 local_dn_expand = dn_expand_proto(lib.resolve("__dn_expand"));
executed (the execution status of this line is deduced): local_dn_expand = dn_expand_proto(lib.resolve("__dn_expand"));
-
85 if (!local_dn_expand)
partially evaluated: !local_dn_expand
TRUEFALSE
no
Evaluation Count:0
yes
Evaluation Count:2
0-2
86 local_dn_expand = dn_expand_proto(lib.resolve("dn_expand"));
never executed: local_dn_expand = dn_expand_proto(lib.resolve("dn_expand"));
0
87 -
88 local_res_nclose = res_nclose_proto(lib.resolve("__res_nclose"));
executed (the execution status of this line is deduced): local_res_nclose = res_nclose_proto(lib.resolve("__res_nclose"));
-
89 if (!local_res_nclose)
partially evaluated: !local_res_nclose
TRUEFALSE
no
Evaluation Count:0
yes
Evaluation Count:2
0-2
90 local_res_nclose = res_nclose_proto(lib.resolve("res_9_nclose"));
never executed: local_res_nclose = res_nclose_proto(lib.resolve("res_9_nclose"));
0
91 if (!local_res_nclose)
partially evaluated: !local_res_nclose
TRUEFALSE
no
Evaluation Count:0
yes
Evaluation Count:2
0-2
92 local_res_nclose = res_nclose_proto(lib.resolve("res_nclose"));
never executed: local_res_nclose = res_nclose_proto(lib.resolve("res_nclose"));
0
93 -
94 local_res_ninit = res_ninit_proto(lib.resolve("__res_ninit"));
executed (the execution status of this line is deduced): local_res_ninit = res_ninit_proto(lib.resolve("__res_ninit"));
-
95 if (!local_res_ninit)
partially evaluated: !local_res_ninit
TRUEFALSE
no
Evaluation Count:0
yes
Evaluation Count:2
0-2
96 local_res_ninit = res_ninit_proto(lib.resolve("res_9_ninit"));
never executed: local_res_ninit = res_ninit_proto(lib.resolve("res_9_ninit"));
0
97 if (!local_res_ninit)
partially evaluated: !local_res_ninit
TRUEFALSE
no
Evaluation Count:0
yes
Evaluation Count:2
0-2
98 local_res_ninit = res_ninit_proto(lib.resolve("res_ninit"));
never executed: local_res_ninit = res_ninit_proto(lib.resolve("res_ninit"));
0
99 -
100 local_res_nquery = res_nquery_proto(lib.resolve("__res_nquery"));
executed (the execution status of this line is deduced): local_res_nquery = res_nquery_proto(lib.resolve("__res_nquery"));
-
101 if (!local_res_nquery)
partially evaluated: !local_res_nquery
TRUEFALSE
no
Evaluation Count:0
yes
Evaluation Count:2
0-2
102 local_res_nquery = res_nquery_proto(lib.resolve("res_9_nquery"));
never executed: local_res_nquery = res_nquery_proto(lib.resolve("res_9_nquery"));
0
103 if (!local_res_nquery)
partially evaluated: !local_res_nquery
TRUEFALSE
no
Evaluation Count:0
yes
Evaluation Count:2
0-2
104 local_res_nquery = res_nquery_proto(lib.resolve("res_nquery"));
never executed: local_res_nquery = res_nquery_proto(lib.resolve("res_nquery"));
0
105}
executed: }
Execution Count:2
2
106 -
107void QDnsLookupRunnable::query(const int requestType, const QByteArray &requestName, QDnsLookupReply *reply) -
108{ -
109 // Load dn_expand, res_ninit and res_nquery on demand. -
110 static QBasicAtomicInt triedResolve = Q_BASIC_ATOMIC_INITIALIZER(false); -
111 if (!triedResolve.loadAcquire()) {
evaluated: !triedResolve.loadAcquire()
TRUEFALSE
yes
Evaluation Count:2
yes
Evaluation Count:39
2-39
112 QMutexLocker locker(QMutexPool::globalInstanceGet(&local_res_ninit));
executed (the execution status of this line is deduced): QMutexLocker locker(QMutexPool::globalInstanceGet(&local_res_ninit));
-
113 if (!triedResolve.load()) {
partially evaluated: !triedResolve.load()
TRUEFALSE
yes
Evaluation Count:2
no
Evaluation Count:0
0-2
114 resolveLibrary();
executed (the execution status of this line is deduced): resolveLibrary();
-
115 triedResolve.storeRelease(true);
executed (the execution status of this line is deduced): triedResolve.storeRelease(true);
-
116 }
executed: }
Execution Count:2
2
117 }
executed: }
Execution Count:2
2
118 -
119 // If dn_expand, res_ninit or res_nquery is missing, fail. -
120 if (!local_dn_expand || !local_res_nclose || !local_res_ninit || !local_res_nquery) {
partially evaluated: !local_dn_expand
TRUEFALSE
no
Evaluation Count:0
yes
Evaluation Count:41
partially evaluated: !local_res_nclose
TRUEFALSE
no
Evaluation Count:0
yes
Evaluation Count:41
partially evaluated: !local_res_ninit
TRUEFALSE
no
Evaluation Count:0
yes
Evaluation Count:41
partially evaluated: !local_res_nquery
TRUEFALSE
no
Evaluation Count:0
yes
Evaluation Count:41
0-41
121 reply->error = QDnsLookup::ResolverError;
never executed (the execution status of this line is deduced): reply->error = QDnsLookup::ResolverError;
-
122 reply->errorString = tr("Resolver functions not found");
never executed (the execution status of this line is deduced): reply->errorString = tr("Resolver functions not found");
-
123 return;
never executed: return;
0
124 } -
125 -
126 // Initialize state. -
127 struct __res_state state;
executed (the execution status of this line is deduced): struct __res_state state;
-
128 memset(&state, 0, sizeof(state));
executed (the execution status of this line is deduced): memset(&state, 0, sizeof(state));
-
129 if (local_res_ninit(&state) < 0) {
partially evaluated: local_res_ninit(&state) < 0
TRUEFALSE
no
Evaluation Count:0
yes
Evaluation Count:41
0-41
130 reply->error = QDnsLookup::ResolverError;
never executed (the execution status of this line is deduced): reply->error = QDnsLookup::ResolverError;
-
131 reply->errorString = tr("Resolver initialization failed");
never executed (the execution status of this line is deduced): reply->errorString = tr("Resolver initialization failed");
-
132 return;
never executed: return;
0
133 } -
134#ifdef QDNSLOOKUP_DEBUG -
135 state.options |= RES_DEBUG; -
136#endif -
137 QScopedPointer<struct __res_state, QDnsLookupStateDeleter> state_ptr(&state);
executed (the execution status of this line is deduced): QScopedPointer<struct __res_state, QDnsLookupStateDeleter> state_ptr(&state);
-
138 -
139 // Perform DNS query. -
140 unsigned char response[PACKETSZ];
executed (the execution status of this line is deduced): unsigned char response[512];
-
141 memset(response, 0, sizeof(response));
executed (the execution status of this line is deduced): memset(response, 0, sizeof(response));
-
142 const int responseLength = local_res_nquery(&state, requestName, C_IN, requestType, response, sizeof(response));
executed (the execution status of this line is deduced): const int responseLength = local_res_nquery(&state, requestName, ns_c_in, requestType, response, sizeof(response));
-
143 -
144 // Check the response header. -
145 HEADER *header = (HEADER*)response;
executed (the execution status of this line is deduced): HEADER *header = (HEADER*)response;
-
146 const int answerCount = ntohs(header->ancount);
never executed: __v = ((unsigned short int) ((((__x) >> 8) & 0xff) | (((__x) & 0xff) << 8)));
executed: __asm__ ("rorw $8, %w0" : "=r" (__v) : "0" (__x) : "cc");
Execution Count:41
partially evaluated: __builtin_constant_p (__x)
TRUEFALSE
no
Evaluation Count:0
yes
Evaluation Count:41
0-41
147 switch (header->rcode) { -
148 case NOERROR: -
149 break;
executed: break;
Execution Count:4
4
150 case FORMERR: -
151 reply->error = QDnsLookup::InvalidRequestError;
never executed (the execution status of this line is deduced): reply->error = QDnsLookup::InvalidRequestError;
-
152 reply->errorString = tr("Server could not process query");
never executed (the execution status of this line is deduced): reply->errorString = tr("Server could not process query");
-
153 return;
never executed: return;
0
154 case SERVFAIL: -
155 reply->error = QDnsLookup::ServerFailureError;
never executed (the execution status of this line is deduced): reply->error = QDnsLookup::ServerFailureError;
-
156 reply->errorString = tr("Server failure");
never executed (the execution status of this line is deduced): reply->errorString = tr("Server failure");
-
157 return;
never executed: return;
0
158 case NXDOMAIN: -
159 reply->error = QDnsLookup::NotFoundError;
executed (the execution status of this line is deduced): reply->error = QDnsLookup::NotFoundError;
-
160 reply->errorString = tr("Non existent domain");
executed (the execution status of this line is deduced): reply->errorString = tr("Non existent domain");
-
161 return;
executed: return;
Execution Count:37
37
162 case REFUSED: -
163 reply->error = QDnsLookup::ServerRefusedError;
never executed (the execution status of this line is deduced): reply->error = QDnsLookup::ServerRefusedError;
-
164 reply->errorString = tr("Server refused to answer");
never executed (the execution status of this line is deduced): reply->errorString = tr("Server refused to answer");
-
165 return;
never executed: return;
0
166 default: -
167 reply->error = QDnsLookup::InvalidReplyError;
never executed (the execution status of this line is deduced): reply->error = QDnsLookup::InvalidReplyError;
-
168 reply->errorString = tr("Invalid reply received");
never executed (the execution status of this line is deduced): reply->errorString = tr("Invalid reply received");
-
169 return;
never executed: return;
0
170 } -
171 -
172 // Check the reply is valid. -
173 if (responseLength < int(sizeof(HEADER))) {
partially evaluated: responseLength < int(sizeof(HEADER))
TRUEFALSE
no
Evaluation Count:0
yes
Evaluation Count:4
0-4
174 reply->error = QDnsLookup::InvalidReplyError;
never executed (the execution status of this line is deduced): reply->error = QDnsLookup::InvalidReplyError;
-
175 reply->errorString = tr("Invalid reply received");
never executed (the execution status of this line is deduced): reply->errorString = tr("Invalid reply received");
-
176 return;
never executed: return;
0
177 } -
178 -
179 // Skip the query host, type (2 bytes) and class (2 bytes). -
180 char host[PACKETSZ], answer[PACKETSZ];
executed (the execution status of this line is deduced): char host[512], answer[512];
-
181 unsigned char *p = response + sizeof(HEADER);
executed (the execution status of this line is deduced): unsigned char *p = response + sizeof(HEADER);
-
182 int status = local_dn_expand(response, response + responseLength, p, host, sizeof(host));
executed (the execution status of this line is deduced): int status = local_dn_expand(response, response + responseLength, p, host, sizeof(host));
-
183 if (status < 0) {
partially evaluated: status < 0
TRUEFALSE
no
Evaluation Count:0
yes
Evaluation Count:4
0-4
184 reply->error = QDnsLookup::InvalidReplyError;
never executed (the execution status of this line is deduced): reply->error = QDnsLookup::InvalidReplyError;
-
185 reply->errorString = tr("Could not expand domain name");
never executed (the execution status of this line is deduced): reply->errorString = tr("Could not expand domain name");
-
186 return;
never executed: return;
0
187 } -
188 p += status + 4;
executed (the execution status of this line is deduced): p += status + 4;
-
189 -
190 // Extract results. -
191 int answerIndex = 0;
executed (the execution status of this line is deduced): int answerIndex = 0;
-
192 while ((p < response + responseLength) && (answerIndex < answerCount)) {
evaluated: (p < response + responseLength)
TRUEFALSE
yes
Evaluation Count:5
yes
Evaluation Count:4
partially evaluated: (answerIndex < answerCount)
TRUEFALSE
yes
Evaluation Count:5
no
Evaluation Count:0
0-5
193 status = local_dn_expand(response, response + responseLength, p, host, sizeof(host));
executed (the execution status of this line is deduced): status = local_dn_expand(response, response + responseLength, p, host, sizeof(host));
-
194 if (status < 0) {
partially evaluated: status < 0
TRUEFALSE
no
Evaluation Count:0
yes
Evaluation Count:5
0-5
195 reply->error = QDnsLookup::InvalidReplyError;
never executed (the execution status of this line is deduced): reply->error = QDnsLookup::InvalidReplyError;
-
196 reply->errorString = tr("Could not expand domain name");
never executed (the execution status of this line is deduced): reply->errorString = tr("Could not expand domain name");
-
197 return;
never executed: return;
0
198 } -
199 const QString name = QUrl::fromAce(host);
executed (the execution status of this line is deduced): const QString name = QUrl::fromAce(host);
-
200 -
201 p += status;
executed (the execution status of this line is deduced): p += status;
-
202 const quint16 type = (p[0] << 8) | p[1];
executed (the execution status of this line is deduced): const quint16 type = (p[0] << 8) | p[1];
-
203 p += 2; // RR type
executed (the execution status of this line is deduced): p += 2;
-
204 p += 2; // RR class
executed (the execution status of this line is deduced): p += 2;
-
205 const quint32 ttl = (p[0] << 24) | (p[1] << 16) | (p[2] << 8) | p[3];
executed (the execution status of this line is deduced): const quint32 ttl = (p[0] << 24) | (p[1] << 16) | (p[2] << 8) | p[3];
-
206 p += 4;
executed (the execution status of this line is deduced): p += 4;
-
207 const quint16 size = (p[0] << 8) | p[1];
executed (the execution status of this line is deduced): const quint16 size = (p[0] << 8) | p[1];
-
208 p += 2;
executed (the execution status of this line is deduced): p += 2;
-
209 -
210 if (type == QDnsLookup::A) {
partially evaluated: type == QDnsLookup::A
TRUEFALSE
no
Evaluation Count:0
yes
Evaluation Count:5
0-5
211 if (size != 4) {
never evaluated: size != 4
0
212 reply->error = QDnsLookup::InvalidReplyError;
never executed (the execution status of this line is deduced): reply->error = QDnsLookup::InvalidReplyError;
-
213 reply->errorString = tr("Invalid IPv4 address record");
never executed (the execution status of this line is deduced): reply->errorString = tr("Invalid IPv4 address record");
-
214 return;
never executed: return;
0
215 } -
216 const quint32 addr = (p[0] << 24) | (p[1] << 16) | (p[2] << 8) | p[3];
never executed (the execution status of this line is deduced): const quint32 addr = (p[0] << 24) | (p[1] << 16) | (p[2] << 8) | p[3];
-
217 QDnsHostAddressRecord record;
never executed (the execution status of this line is deduced): QDnsHostAddressRecord record;
-
218 record.d->name = name;
never executed (the execution status of this line is deduced): record.d->name = name;
-
219 record.d->timeToLive = ttl;
never executed (the execution status of this line is deduced): record.d->timeToLive = ttl;
-
220 record.d->value = QHostAddress(addr);
never executed (the execution status of this line is deduced): record.d->value = QHostAddress(addr);
-
221 reply->hostAddressRecords.append(record);
never executed (the execution status of this line is deduced): reply->hostAddressRecords.append(record);
-
222 } else if (type == QDnsLookup::AAAA) {
never executed: }
partially evaluated: type == QDnsLookup::AAAA
TRUEFALSE
no
Evaluation Count:0
yes
Evaluation Count:5
0-5
223 if (size != 16) {
never evaluated: size != 16
0
224 reply->error = QDnsLookup::InvalidReplyError;
never executed (the execution status of this line is deduced): reply->error = QDnsLookup::InvalidReplyError;
-
225 reply->errorString = tr("Invalid IPv6 address record");
never executed (the execution status of this line is deduced): reply->errorString = tr("Invalid IPv6 address record");
-
226 return;
never executed: return;
0
227 } -
228 QDnsHostAddressRecord record;
never executed (the execution status of this line is deduced): QDnsHostAddressRecord record;
-
229 record.d->name = name;
never executed (the execution status of this line is deduced): record.d->name = name;
-
230 record.d->timeToLive = ttl;
never executed (the execution status of this line is deduced): record.d->timeToLive = ttl;
-
231 record.d->value = QHostAddress(p);
never executed (the execution status of this line is deduced): record.d->value = QHostAddress(p);
-
232 reply->hostAddressRecords.append(record);
never executed (the execution status of this line is deduced): reply->hostAddressRecords.append(record);
-
233 } else if (type == QDnsLookup::CNAME) {
never executed: }
partially evaluated: type == QDnsLookup::CNAME
TRUEFALSE
no
Evaluation Count:0
yes
Evaluation Count:5
0-5
234 status = local_dn_expand(response, response + responseLength, p, answer, sizeof(answer));
never executed (the execution status of this line is deduced): status = local_dn_expand(response, response + responseLength, p, answer, sizeof(answer));
-
235 if (status < 0) {
never evaluated: status < 0
0
236 reply->error = QDnsLookup::InvalidReplyError;
never executed (the execution status of this line is deduced): reply->error = QDnsLookup::InvalidReplyError;
-
237 reply->errorString = tr("Invalid canonical name record");
never executed (the execution status of this line is deduced): reply->errorString = tr("Invalid canonical name record");
-
238 return;
never executed: return;
0
239 } -
240 QDnsDomainNameRecord record;
never executed (the execution status of this line is deduced): QDnsDomainNameRecord record;
-
241 record.d->name = name;
never executed (the execution status of this line is deduced): record.d->name = name;
-
242 record.d->timeToLive = ttl;
never executed (the execution status of this line is deduced): record.d->timeToLive = ttl;
-
243 record.d->value = QUrl::fromAce(answer);
never executed (the execution status of this line is deduced): record.d->value = QUrl::fromAce(answer);
-
244 reply->canonicalNameRecords.append(record);
never executed (the execution status of this line is deduced): reply->canonicalNameRecords.append(record);
-
245 } else if (type == QDnsLookup::NS) {
never executed: }
evaluated: type == QDnsLookup::NS
TRUEFALSE
yes
Evaluation Count:2
yes
Evaluation Count:3
0-3
246 status = local_dn_expand(response, response + responseLength, p, answer, sizeof(answer));
executed (the execution status of this line is deduced): status = local_dn_expand(response, response + responseLength, p, answer, sizeof(answer));
-
247 if (status < 0) {
partially evaluated: status < 0
TRUEFALSE
no
Evaluation Count:0
yes
Evaluation Count:2
0-2
248 reply->error = QDnsLookup::InvalidReplyError;
never executed (the execution status of this line is deduced): reply->error = QDnsLookup::InvalidReplyError;
-
249 reply->errorString = tr("Invalid name server record");
never executed (the execution status of this line is deduced): reply->errorString = tr("Invalid name server record");
-
250 return;
never executed: return;
0
251 } -
252 QDnsDomainNameRecord record;
executed (the execution status of this line is deduced): QDnsDomainNameRecord record;
-
253 record.d->name = name;
executed (the execution status of this line is deduced): record.d->name = name;
-
254 record.d->timeToLive = ttl;
executed (the execution status of this line is deduced): record.d->timeToLive = ttl;
-
255 record.d->value = QUrl::fromAce(answer);
executed (the execution status of this line is deduced): record.d->value = QUrl::fromAce(answer);
-
256 reply->nameServerRecords.append(record);
executed (the execution status of this line is deduced): reply->nameServerRecords.append(record);
-
257 } else if (type == QDnsLookup::PTR) {
executed: }
Execution Count:2
evaluated: type == QDnsLookup::PTR
TRUEFALSE
yes
Evaluation Count:1
yes
Evaluation Count:2
1-2
258 status = local_dn_expand(response, response + responseLength, p, answer, sizeof(answer));
executed (the execution status of this line is deduced): status = local_dn_expand(response, response + responseLength, p, answer, sizeof(answer));
-
259 if (status < 0) {
partially evaluated: status < 0
TRUEFALSE
no
Evaluation Count:0
yes
Evaluation Count:1
0-1
260 reply->error = QDnsLookup::InvalidReplyError;
never executed (the execution status of this line is deduced): reply->error = QDnsLookup::InvalidReplyError;
-
261 reply->errorString = tr("Invalid pointer record");
never executed (the execution status of this line is deduced): reply->errorString = tr("Invalid pointer record");
-
262 return;
never executed: return;
0
263 } -
264 QDnsDomainNameRecord record;
executed (the execution status of this line is deduced): QDnsDomainNameRecord record;
-
265 record.d->name = name;
executed (the execution status of this line is deduced): record.d->name = name;
-
266 record.d->timeToLive = ttl;
executed (the execution status of this line is deduced): record.d->timeToLive = ttl;
-
267 record.d->value = QUrl::fromAce(answer);
executed (the execution status of this line is deduced): record.d->value = QUrl::fromAce(answer);
-
268 reply->pointerRecords.append(record);
executed (the execution status of this line is deduced): reply->pointerRecords.append(record);
-
269 } else if (type == QDnsLookup::MX) {
executed: }
Execution Count:1
evaluated: type == QDnsLookup::MX
TRUEFALSE
yes
Evaluation Count:1
yes
Evaluation Count:1
1
270 const quint16 preference = (p[0] << 8) | p[1];
executed (the execution status of this line is deduced): const quint16 preference = (p[0] << 8) | p[1];
-
271 status = local_dn_expand(response, response + responseLength, p + 2, answer, sizeof(answer));
executed (the execution status of this line is deduced): status = local_dn_expand(response, response + responseLength, p + 2, answer, sizeof(answer));
-
272 if (status < 0) {
partially evaluated: status < 0
TRUEFALSE
no
Evaluation Count:0
yes
Evaluation Count:1
0-1
273 reply->error = QDnsLookup::InvalidReplyError;
never executed (the execution status of this line is deduced): reply->error = QDnsLookup::InvalidReplyError;
-
274 reply->errorString = tr("Invalid mail exchange record");
never executed (the execution status of this line is deduced): reply->errorString = tr("Invalid mail exchange record");
-
275 return;
never executed: return;
0
276 } -
277 QDnsMailExchangeRecord record;
executed (the execution status of this line is deduced): QDnsMailExchangeRecord record;
-
278 record.d->exchange = QUrl::fromAce(answer);
executed (the execution status of this line is deduced): record.d->exchange = QUrl::fromAce(answer);
-
279 record.d->name = name;
executed (the execution status of this line is deduced): record.d->name = name;
-
280 record.d->preference = preference;
executed (the execution status of this line is deduced): record.d->preference = preference;
-
281 record.d->timeToLive = ttl;
executed (the execution status of this line is deduced): record.d->timeToLive = ttl;
-
282 reply->mailExchangeRecords.append(record);
executed (the execution status of this line is deduced): reply->mailExchangeRecords.append(record);
-
283 } else if (type == QDnsLookup::SRV) {
executed: }
Execution Count:1
partially evaluated: type == QDnsLookup::SRV
TRUEFALSE
no
Evaluation Count:0
yes
Evaluation Count:1
0-1
284 const quint16 priority = (p[0] << 8) | p[1];
never executed (the execution status of this line is deduced): const quint16 priority = (p[0] << 8) | p[1];
-
285 const quint16 weight = (p[2] << 8) | p[3];
never executed (the execution status of this line is deduced): const quint16 weight = (p[2] << 8) | p[3];
-
286 const quint16 port = (p[4] << 8) | p[5];
never executed (the execution status of this line is deduced): const quint16 port = (p[4] << 8) | p[5];
-
287 status = local_dn_expand(response, response + responseLength, p + 6, answer, sizeof(answer));
never executed (the execution status of this line is deduced): status = local_dn_expand(response, response + responseLength, p + 6, answer, sizeof(answer));
-
288 if (status < 0) {
never evaluated: status < 0
0
289 reply->error = QDnsLookup::InvalidReplyError;
never executed (the execution status of this line is deduced): reply->error = QDnsLookup::InvalidReplyError;
-
290 reply->errorString = tr("Invalid service record");
never executed (the execution status of this line is deduced): reply->errorString = tr("Invalid service record");
-
291 return;
never executed: return;
0
292 } -
293 QDnsServiceRecord record;
never executed (the execution status of this line is deduced): QDnsServiceRecord record;
-
294 record.d->name = name;
never executed (the execution status of this line is deduced): record.d->name = name;
-
295 record.d->target = QUrl::fromAce(answer);
never executed (the execution status of this line is deduced): record.d->target = QUrl::fromAce(answer);
-
296 record.d->port = port;
never executed (the execution status of this line is deduced): record.d->port = port;
-
297 record.d->priority = priority;
never executed (the execution status of this line is deduced): record.d->priority = priority;
-
298 record.d->timeToLive = ttl;
never executed (the execution status of this line is deduced): record.d->timeToLive = ttl;
-
299 record.d->weight = weight;
never executed (the execution status of this line is deduced): record.d->weight = weight;
-
300 reply->serviceRecords.append(record);
never executed (the execution status of this line is deduced): reply->serviceRecords.append(record);
-
301 } else if (type == QDnsLookup::TXT) {
never executed: }
partially evaluated: type == QDnsLookup::TXT
TRUEFALSE
yes
Evaluation Count:1
no
Evaluation Count:0
0-1
302 unsigned char *txt = p;
executed (the execution status of this line is deduced): unsigned char *txt = p;
-
303 QDnsTextRecord record;
executed (the execution status of this line is deduced): QDnsTextRecord record;
-
304 record.d->name = name;
executed (the execution status of this line is deduced): record.d->name = name;
-
305 record.d->timeToLive = ttl;
executed (the execution status of this line is deduced): record.d->timeToLive = ttl;
-
306 while (txt < p + size) {
evaluated: txt < p + size
TRUEFALSE
yes
Evaluation Count:1
yes
Evaluation Count:1
1
307 const unsigned char length = *txt;
executed (the execution status of this line is deduced): const unsigned char length = *txt;
-
308 txt++;
executed (the execution status of this line is deduced): txt++;
-
309 if (txt + length > p + size) {
partially evaluated: txt + length > p + size
TRUEFALSE
no
Evaluation Count:0
yes
Evaluation Count:1
0-1
310 reply->error = QDnsLookup::InvalidReplyError;
never executed (the execution status of this line is deduced): reply->error = QDnsLookup::InvalidReplyError;
-
311 reply->errorString = tr("Invalid text record");
never executed (the execution status of this line is deduced): reply->errorString = tr("Invalid text record");
-
312 return;
never executed: return;
0
313 } -
314 record.d->values << QByteArray((char*)txt, length);
executed (the execution status of this line is deduced): record.d->values << QByteArray((char*)txt, length);
-
315 txt += length;
executed (the execution status of this line is deduced): txt += length;
-
316 }
executed: }
Execution Count:1
1
317 reply->textRecords.append(record);
executed (the execution status of this line is deduced): reply->textRecords.append(record);
-
318 }
executed: }
Execution Count:1
1
319 p += size;
executed (the execution status of this line is deduced): p += size;
-
320 answerIndex++;
executed (the execution status of this line is deduced): answerIndex++;
-
321 }
executed: }
Execution Count:5
5
322}
executed: }
Execution Count:4
4
323 -
324#else -
325 -
326void QDnsLookupRunnable::query(const int requestType, const QByteArray &requestName, QDnsLookupReply *reply) -
327{ -
328 Q_UNUSED(requestType) -
329 Q_UNUSED(requestName) -
330 reply->error = QDnsLookup::ResolverError; -
331 reply->errorString = tr("Resolver library can't be loaded: No runtime library loading support"); -
332 return; -
333} -
334 -
335#endif /* ifndef QT_NO_LIBRARY */ -
336 -
337QT_END_NAMESPACE -
338 -
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