Line | Source Code | Coverage |
---|
1 | | - |
2 | | - |
3 | | - |
4 | | - |
5 | | - |
6 | | - |
7 | | - |
8 | | - |
9 | | - |
10 | typedef int (*dn_expand_proto)(const unsigned char *, const unsigned char *, const unsigned char *, char *, int); | - |
11 | static dn_expand_proto local_dn_expand = 0; | - |
12 | typedef void (*res_nclose_proto)(res_state); | - |
13 | static res_nclose_proto local_res_nclose = 0; | - |
14 | typedef int (*res_ninit_proto)(res_state); | - |
15 | static res_ninit_proto local_res_ninit = 0; | - |
16 | typedef int (*res_nquery_proto)(res_state, const char *, int, int, unsigned char *, int); | - |
17 | static res_nquery_proto local_res_nquery = 0; | - |
18 | | - |
19 | | - |
20 | | - |
21 | struct QDnsLookupStateDeleter | - |
22 | { | - |
23 | static inline void cleanup(struct __res_state *pointer) | - |
24 | { | - |
25 | local_res_nclose(pointer); | - |
26 | } executed: } Execution Count:41 | 41 |
27 | }; | - |
28 | | - |
29 | static void resolveLibrary() | - |
30 | { | - |
31 | QLibrary lib(QLatin1String("resolv")); | - |
32 | if (!lib.load()) partially evaluated: !lib.load() no Evaluation Count:0 | yes Evaluation Count:2 |
| 0-2 |
33 | return; | 0 |
34 | | - |
35 | local_dn_expand = dn_expand_proto(lib.resolve("__dn_expand")); | - |
36 | if (!local_dn_expand) partially evaluated: !local_dn_expand no Evaluation Count:0 | yes Evaluation Count:2 |
| 0-2 |
37 | local_dn_expand = dn_expand_proto(lib.resolve("dn_expand")); never executed: local_dn_expand = dn_expand_proto(lib.resolve("dn_expand")); | 0 |
38 | | - |
39 | local_res_nclose = res_nclose_proto(lib.resolve("__res_nclose")); | - |
40 | if (!local_res_nclose) partially evaluated: !local_res_nclose no Evaluation Count:0 | yes Evaluation Count:2 |
| 0-2 |
41 | 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 |
42 | if (!local_res_nclose) partially evaluated: !local_res_nclose no Evaluation Count:0 | yes Evaluation Count:2 |
| 0-2 |
43 | local_res_nclose = res_nclose_proto(lib.resolve("res_nclose")); never executed: local_res_nclose = res_nclose_proto(lib.resolve("res_nclose")); | 0 |
44 | | - |
45 | local_res_ninit = res_ninit_proto(lib.resolve("__res_ninit")); | - |
46 | if (!local_res_ninit) partially evaluated: !local_res_ninit no Evaluation Count:0 | yes Evaluation Count:2 |
| 0-2 |
47 | 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 |
48 | if (!local_res_ninit) partially evaluated: !local_res_ninit no Evaluation Count:0 | yes Evaluation Count:2 |
| 0-2 |
49 | local_res_ninit = res_ninit_proto(lib.resolve("res_ninit")); never executed: local_res_ninit = res_ninit_proto(lib.resolve("res_ninit")); | 0 |
50 | | - |
51 | local_res_nquery = res_nquery_proto(lib.resolve("__res_nquery")); | - |
52 | if (!local_res_nquery) partially evaluated: !local_res_nquery no Evaluation Count:0 | yes Evaluation Count:2 |
| 0-2 |
53 | 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 |
54 | if (!local_res_nquery) partially evaluated: !local_res_nquery no Evaluation Count:0 | yes Evaluation Count:2 |
| 0-2 |
55 | local_res_nquery = res_nquery_proto(lib.resolve("res_nquery")); never executed: local_res_nquery = res_nquery_proto(lib.resolve("res_nquery")); | 0 |
56 | } executed: } Execution Count:2 | 2 |
57 | | - |
58 | void QDnsLookupRunnable::query(const int requestType, const QByteArray &requestName, QDnsLookupReply *reply) | - |
59 | { | - |
60 | | - |
61 | static QBasicAtomicInt triedResolve = { (false) }; | - |
62 | if (!triedResolve.loadAcquire()) { evaluated: !triedResolve.loadAcquire() yes Evaluation Count:2 | yes Evaluation Count:39 |
| 2-39 |
63 | QMutexLocker locker(QMutexPool::globalInstanceGet(&local_res_ninit)); | - |
64 | if (!triedResolve.load()) { partially evaluated: !triedResolve.load() yes Evaluation Count:2 | no Evaluation Count:0 |
| 0-2 |
65 | resolveLibrary(); | - |
66 | triedResolve.storeRelease(true); | - |
67 | } executed: } Execution Count:2 | 2 |
68 | } executed: } Execution Count:2 | 2 |
69 | | - |
70 | | - |
71 | if (!local_dn_expand || !local_res_nclose || !local_res_ninit || !local_res_nquery) { partially evaluated: !local_dn_expand no Evaluation Count:0 | yes Evaluation Count:41 |
partially evaluated: !local_res_nclose no Evaluation Count:0 | yes Evaluation Count:41 |
partially evaluated: !local_res_ninit no Evaluation Count:0 | yes Evaluation Count:41 |
partially evaluated: !local_res_nquery no Evaluation Count:0 | yes Evaluation Count:41 |
| 0-41 |
72 | reply->error = QDnsLookup::ResolverError; | - |
73 | reply->errorString = tr("Resolver functions not found"); | - |
74 | return; | 0 |
75 | } | - |
76 | | - |
77 | | - |
78 | struct __res_state state; | - |
79 | memset(&state, 0, sizeof(state)); | - |
80 | if (local_res_ninit(&state) < 0) { partially evaluated: local_res_ninit(&state) < 0 no Evaluation Count:0 | yes Evaluation Count:41 |
| 0-41 |
81 | reply->error = QDnsLookup::ResolverError; | - |
82 | reply->errorString = tr("Resolver initialization failed"); | - |
83 | return; | 0 |
84 | } | - |
85 | | - |
86 | | - |
87 | | - |
88 | QScopedPointer<struct __res_state, QDnsLookupStateDeleter> state_ptr(&state); | - |
89 | | - |
90 | | - |
91 | unsigned char response[512]; | - |
92 | memset(response, 0, sizeof(response)); | - |
93 | const int responseLength = local_res_nquery(&state, requestName, ns_c_in, requestType, response, sizeof(response)); | - |
94 | | - |
95 | | - |
96 | HEADER *header = (HEADER*)response; | - |
97 | const int answerCount = (__extension__ ({ register unsigned short int __v, __x = (unsigned short int) (header->ancount); if (__builtin_constant_p (__x)) __v = ((unsigned short int) ((((__x) >> 8) & 0xff) | (((__x) & 0xff) << 8))); else __asm__ ("rorw $8, %w0" : "=r" (__v) : "0" (__x) : "cc"); __v; })); 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) no Evaluation Count:0 | yes Evaluation Count:41 |
| 0-41 |
98 | switch (header->rcode) { | - |
99 | case ns_r_noerror: | - |
100 | break; executed: break; Execution Count:4 | 4 |
101 | case ns_r_formerr: | - |
102 | reply->error = QDnsLookup::InvalidRequestError; | - |
103 | reply->errorString = tr("Server could not process query"); | - |
104 | return; | 0 |
105 | case ns_r_servfail: | - |
106 | reply->error = QDnsLookup::ServerFailureError; | - |
107 | reply->errorString = tr("Server failure"); | - |
108 | return; | 0 |
109 | case ns_r_nxdomain: | - |
110 | reply->error = QDnsLookup::NotFoundError; | - |
111 | reply->errorString = tr("Non existent domain"); | - |
112 | return; executed: return; Execution Count:37 | 37 |
113 | case ns_r_refused: | - |
114 | reply->error = QDnsLookup::ServerRefusedError; | - |
115 | reply->errorString = tr("Server refused to answer"); | - |
116 | return; | 0 |
117 | default: | - |
118 | reply->error = QDnsLookup::InvalidReplyError; | - |
119 | reply->errorString = tr("Invalid reply received"); | - |
120 | return; | 0 |
121 | } | - |
122 | | - |
123 | | - |
124 | if (responseLength < int(sizeof(HEADER))) { partially evaluated: responseLength < int(sizeof(HEADER)) no Evaluation Count:0 | yes Evaluation Count:4 |
| 0-4 |
125 | reply->error = QDnsLookup::InvalidReplyError; | - |
126 | reply->errorString = tr("Invalid reply received"); | - |
127 | return; | 0 |
128 | } | - |
129 | | - |
130 | | - |
131 | char host[512], answer[512]; | - |
132 | unsigned char *p = response + sizeof(HEADER); | - |
133 | int status = local_dn_expand(response, response + responseLength, p, host, sizeof(host)); | - |
134 | if (status < 0) { partially evaluated: status < 0 no Evaluation Count:0 | yes Evaluation Count:4 |
| 0-4 |
135 | reply->error = QDnsLookup::InvalidReplyError; | - |
136 | reply->errorString = tr("Could not expand domain name"); | - |
137 | return; | 0 |
138 | } | - |
139 | p += status + 4; | - |
140 | | - |
141 | | - |
142 | int answerIndex = 0; | - |
143 | while ((p < response + responseLength) && (answerIndex < answerCount)) { evaluated: (p < response + responseLength) yes Evaluation Count:5 | yes Evaluation Count:4 |
partially evaluated: (answerIndex < answerCount) yes Evaluation Count:5 | no Evaluation Count:0 |
| 0-5 |
144 | status = local_dn_expand(response, response + responseLength, p, host, sizeof(host)); | - |
145 | if (status < 0) { partially evaluated: status < 0 no Evaluation Count:0 | yes Evaluation Count:5 |
| 0-5 |
146 | reply->error = QDnsLookup::InvalidReplyError; | - |
147 | reply->errorString = tr("Could not expand domain name"); | - |
148 | return; | 0 |
149 | } | - |
150 | const QString name = QUrl::fromAce(host); | - |
151 | | - |
152 | p += status; | - |
153 | const quint16 type = (p[0] << 8) | p[1]; | - |
154 | p += 2; | - |
155 | p += 2; | - |
156 | const quint32 ttl = (p[0] << 24) | (p[1] << 16) | (p[2] << 8) | p[3]; | - |
157 | p += 4; | - |
158 | const quint16 size = (p[0] << 8) | p[1]; | - |
159 | p += 2; | - |
160 | | - |
161 | if (type == QDnsLookup::A) { partially evaluated: type == QDnsLookup::A no Evaluation Count:0 | yes Evaluation Count:5 |
| 0-5 |
162 | if (size != 4) { never evaluated: size != 4 | 0 |
163 | reply->error = QDnsLookup::InvalidReplyError; | - |
164 | reply->errorString = tr("Invalid IPv4 address record"); | - |
165 | return; | 0 |
166 | } | - |
167 | const quint32 addr = (p[0] << 24) | (p[1] << 16) | (p[2] << 8) | p[3]; | - |
168 | QDnsHostAddressRecord record; | - |
169 | record.d->name = name; | - |
170 | record.d->timeToLive = ttl; | - |
171 | record.d->value = QHostAddress(addr); | - |
172 | reply->hostAddressRecords.append(record); | - |
173 | } else if (type == QDnsLookup::AAAA) { partially evaluated: type == QDnsLookup::AAAA no Evaluation Count:0 | yes Evaluation Count:5 |
| 0-5 |
174 | if (size != 16) { never evaluated: size != 16 | 0 |
175 | reply->error = QDnsLookup::InvalidReplyError; | - |
176 | reply->errorString = tr("Invalid IPv6 address record"); | - |
177 | return; | 0 |
178 | } | - |
179 | QDnsHostAddressRecord record; | - |
180 | record.d->name = name; | - |
181 | record.d->timeToLive = ttl; | - |
182 | record.d->value = QHostAddress(p); | - |
183 | reply->hostAddressRecords.append(record); | - |
184 | } else if (type == QDnsLookup::CNAME) { partially evaluated: type == QDnsLookup::CNAME no Evaluation Count:0 | yes Evaluation Count:5 |
| 0-5 |
185 | status = local_dn_expand(response, response + responseLength, p, answer, sizeof(answer)); | - |
186 | if (status < 0) { never evaluated: status < 0 | 0 |
187 | reply->error = QDnsLookup::InvalidReplyError; | - |
188 | reply->errorString = tr("Invalid canonical name record"); | - |
189 | return; | 0 |
190 | } | - |
191 | QDnsDomainNameRecord record; | - |
192 | record.d->name = name; | - |
193 | record.d->timeToLive = ttl; | - |
194 | record.d->value = QUrl::fromAce(answer); | - |
195 | reply->canonicalNameRecords.append(record); | - |
196 | } else if (type == QDnsLookup::NS) { evaluated: type == QDnsLookup::NS yes Evaluation Count:2 | yes Evaluation Count:3 |
| 0-3 |
197 | status = local_dn_expand(response, response + responseLength, p, answer, sizeof(answer)); | - |
198 | if (status < 0) { partially evaluated: status < 0 no Evaluation Count:0 | yes Evaluation Count:2 |
| 0-2 |
199 | reply->error = QDnsLookup::InvalidReplyError; | - |
200 | reply->errorString = tr("Invalid name server record"); | - |
201 | return; | 0 |
202 | } | - |
203 | QDnsDomainNameRecord record; | - |
204 | record.d->name = name; | - |
205 | record.d->timeToLive = ttl; | - |
206 | record.d->value = QUrl::fromAce(answer); | - |
207 | reply->nameServerRecords.append(record); | - |
208 | } else if (type == QDnsLookup::PTR) { executed: } Execution Count:2 evaluated: type == QDnsLookup::PTR yes Evaluation Count:1 | yes Evaluation Count:2 |
| 1-2 |
209 | status = local_dn_expand(response, response + responseLength, p, answer, sizeof(answer)); | - |
210 | if (status < 0) { partially evaluated: status < 0 no Evaluation Count:0 | yes Evaluation Count:1 |
| 0-1 |
211 | reply->error = QDnsLookup::InvalidReplyError; | - |
212 | reply->errorString = tr("Invalid pointer record"); | - |
213 | return; | 0 |
214 | } | - |
215 | QDnsDomainNameRecord record; | - |
216 | record.d->name = name; | - |
217 | record.d->timeToLive = ttl; | - |
218 | record.d->value = QUrl::fromAce(answer); | - |
219 | reply->pointerRecords.append(record); | - |
220 | } else if (type == QDnsLookup::MX) { executed: } Execution Count:1 evaluated: type == QDnsLookup::MX yes Evaluation Count:1 | yes Evaluation Count:1 |
| 1 |
221 | const quint16 preference = (p[0] << 8) | p[1]; | - |
222 | status = local_dn_expand(response, response + responseLength, p + 2, answer, sizeof(answer)); | - |
223 | if (status < 0) { partially evaluated: status < 0 no Evaluation Count:0 | yes Evaluation Count:1 |
| 0-1 |
224 | reply->error = QDnsLookup::InvalidReplyError; | - |
225 | reply->errorString = tr("Invalid mail exchange record"); | - |
226 | return; | 0 |
227 | } | - |
228 | QDnsMailExchangeRecord record; | - |
229 | record.d->exchange = QUrl::fromAce(answer); | - |
230 | record.d->name = name; | - |
231 | record.d->preference = preference; | - |
232 | record.d->timeToLive = ttl; | - |
233 | reply->mailExchangeRecords.append(record); | - |
234 | } else if (type == QDnsLookup::SRV) { executed: } Execution Count:1 partially evaluated: type == QDnsLookup::SRV no Evaluation Count:0 | yes Evaluation Count:1 |
| 0-1 |
235 | const quint16 priority = (p[0] << 8) | p[1]; | - |
236 | const quint16 weight = (p[2] << 8) | p[3]; | - |
237 | const quint16 port = (p[4] << 8) | p[5]; | - |
238 | status = local_dn_expand(response, response + responseLength, p + 6, answer, sizeof(answer)); | - |
239 | if (status < 0) { never evaluated: status < 0 | 0 |
240 | reply->error = QDnsLookup::InvalidReplyError; | - |
241 | reply->errorString = tr("Invalid service record"); | - |
242 | return; | 0 |
243 | } | - |
244 | QDnsServiceRecord record; | - |
245 | record.d->name = name; | - |
246 | record.d->target = QUrl::fromAce(answer); | - |
247 | record.d->port = port; | - |
248 | record.d->priority = priority; | - |
249 | record.d->timeToLive = ttl; | - |
250 | record.d->weight = weight; | - |
251 | reply->serviceRecords.append(record); | - |
252 | } else if (type == QDnsLookup::TXT) { partially evaluated: type == QDnsLookup::TXT yes Evaluation Count:1 | no Evaluation Count:0 |
| 0-1 |
253 | unsigned char *txt = p; | - |
254 | QDnsTextRecord record; | - |
255 | record.d->name = name; | - |
256 | record.d->timeToLive = ttl; | - |
257 | while (txt < p + size) { evaluated: txt < p + size yes Evaluation Count:1 | yes Evaluation Count:1 |
| 1 |
258 | const unsigned char length = *txt; | - |
259 | txt++; | - |
260 | if (txt + length > p + size) { partially evaluated: txt + length > p + size no Evaluation Count:0 | yes Evaluation Count:1 |
| 0-1 |
261 | reply->error = QDnsLookup::InvalidReplyError; | - |
262 | reply->errorString = tr("Invalid text record"); | - |
263 | return; | 0 |
264 | } | - |
265 | record.d->values << QByteArray((char*)txt, length); | - |
266 | txt += length; | - |
267 | } executed: } Execution Count:1 | 1 |
268 | reply->textRecords.append(record); | - |
269 | } executed: } Execution Count:1 | 1 |
270 | p += size; | - |
271 | answerIndex++; | - |
272 | } executed: } Execution Count:5 | 5 |
273 | } executed: } Execution Count:4 | 4 |
274 | | - |
275 | | - |
| | |