OpenCoverage

mac.c

Absolute File Name:/home/opencoverage/opencoverage/guest-scripts/openssh/src/mac.c
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11-
12struct macalg {-
13 char *name;-
14 int type;-
15 int alg;-
16 int truncatebits;-
17 int key_len;-
18 int len;-
19 int etm;-
20};-
21-
22static const struct macalg macs[] = {-
23-
24 { "hmac-sha1", 1, 1, 0, 0, 0, 0 },-
25 { "hmac-sha1-96", 1, 1, 96, 0, 0, 0 },-
26-
27 { "hmac-sha2-256", 1, 2, 0, 0, 0, 0 },-
28 { "hmac-sha2-512", 1, 4, 0, 0, 0, 0 },-
29-
30 { "hmac-md5", 1, 0, 0, 0, 0, 0 },-
31 { "hmac-md5-96", 1, 0, 96, 0, 0, 0 },-
32 { "umac-64@openssh.com", 2, 0, 0, 128, 64, 0 },-
33 { "umac-128@openssh.com", 3, 0, 0, 128, 128, 0 },-
34-
35-
36 { "hmac-sha1-etm@openssh.com", 1, 1, 0, 0, 0, 1 },-
37 { "hmac-sha1-96-etm@openssh.com", 1, 1, 96, 0, 0, 1 },-
38-
39 { "hmac-sha2-256-etm@openssh.com", 1, 2, 0, 0, 0, 1 },-
40 { "hmac-sha2-512-etm@openssh.com", 1, 4, 0, 0, 0, 1 },-
41-
42 { "hmac-md5-etm@openssh.com", 1, 0, 0, 0, 0, 1 },-
43 { "hmac-md5-96-etm@openssh.com", 1, 0, 96, 0, 0, 1 },-
44 { "umac-64-etm@openssh.com", 2, 0, 0, 128, 64, 1 },-
45 { "umac-128-etm@openssh.com", 3, 0, 0, 128, 128, 1 },-
46-
47 { -
48 ((void *)0)-
49 , 0, 0, 0, 0, 0, 0 }-
50};-
51-
52-
53char *-
54mac_alg_list(char sep)-
55{-
56 char *ret = -
57 ((void *)0)-
58 , *tmp;-
59 size_t nlen, rlen = 0;-
60 const struct macalg *m;-
61-
62 for (m = macs; m->name !=
m->name != ((void *)0)Description
TRUEevaluated 32 times by 1 test
Evaluated by:
  • sshd
FALSEevaluated 2 times by 1 test
Evaluated by:
  • sshd
2-32
63 ((void *)0)
m->name != ((void *)0)Description
TRUEevaluated 32 times by 1 test
Evaluated by:
  • sshd
FALSEevaluated 2 times by 1 test
Evaluated by:
  • sshd
2-32
64 ; m++) {-
65 if (ret !=
ret != ((void *)0)Description
TRUEevaluated 30 times by 1 test
Evaluated by:
  • sshd
FALSEevaluated 2 times by 1 test
Evaluated by:
  • sshd
2-30
66 ((void *)0)
ret != ((void *)0)Description
TRUEevaluated 30 times by 1 test
Evaluated by:
  • sshd
FALSEevaluated 2 times by 1 test
Evaluated by:
  • sshd
2-30
67 )-
68 ret[rlen++] = sep;
executed 30 times by 1 test: ret[rlen++] = sep;
Executed by:
  • sshd
30
69 nlen = strlen(m->name);-
70 if ((
(tmp = realloc...== ((void *)0)Description
TRUEnever evaluated
FALSEevaluated 32 times by 1 test
Evaluated by:
  • sshd
tmp = realloc(ret, rlen + nlen + 2)) ==
(tmp = realloc...== ((void *)0)Description
TRUEnever evaluated
FALSEevaluated 32 times by 1 test
Evaluated by:
  • sshd
0-32
71 ((void *)0)
(tmp = realloc...== ((void *)0)Description
TRUEnever evaluated
FALSEevaluated 32 times by 1 test
Evaluated by:
  • sshd
0-32
72 ) {-
73 free(ret);-
74 return
never executed: return ((void *)0) ;
never executed: return ((void *)0) ;
0
75 ((void *)0)
never executed: return ((void *)0) ;
0
76 ;
never executed: return ((void *)0) ;
0
77 }-
78 ret = tmp;-
79 memcpy(ret + rlen, m->name, nlen + 1);-
80 rlen += nlen;-
81 }
executed 32 times by 1 test: end of block
Executed by:
  • sshd
32
82 return
executed 2 times by 1 test: return ret;
Executed by:
  • sshd
 ret;
executed 2 times by 1 test: return ret;
Executed by:
  • sshd
2
83}-
84-
85static int-
86mac_setup_by_alg(struct sshmac *mac, const struct macalg *macalg)-
87{-
88 mac->type = macalg->type;-
89 if (mac->type == 1
mac->type == 1Description
TRUEnever evaluated
FALSEnever evaluated
) {		0
90 if ((
(mac->hmac_ctx...== ((void *)0)Description
TRUEnever evaluated
FALSEnever evaluated
mac->hmac_ctx = ssh_hmac_start(macalg->alg)) ==
(mac->hmac_ctx...== ((void *)0)Description
TRUEnever evaluated
FALSEnever evaluated
0
91 ((void *)0)
(mac->hmac_ctx...== ((void *)0)Description
TRUEnever evaluated
FALSEnever evaluated
0
92 )-
93 return
never executed: return -2;
 -2;
never executed: return -2;
0
94 mac->key_len = mac->mac_len = ssh_hmac_bytes(macalg->alg);-
95 }
never executed: end of block
 else {		0
96 mac->mac_len = macalg->len / 8;-
97 mac->key_len = macalg->key_len / 8;-
98 mac->umac_ctx = -
99 ((void *)0)-
100 ;-
101 }
never executed: end of block
0
102 if (macalg->truncatebits != 0
macalg->truncatebits != 0Description
TRUEnever evaluated
FALSEnever evaluated
)		0
103 mac->mac_len = macalg->truncatebits / 8;
never executed: mac->mac_len = macalg->truncatebits / 8;
0
104 mac->etm = macalg->etm;-
105 return
never executed: return 0;
 0;
never executed: return 0;
0
106}-
107-
108int-
109mac_setup(struct sshmac *mac, char *name)-
110{-
111 const struct macalg *m;-
112-
113 for (m = macs; m->name !=
m->name != ((void *)0)Description
TRUEnever evaluated
FALSEnever evaluated
0
114 ((void *)0)
m->name != ((void *)0)Description
TRUEnever evaluated
FALSEnever evaluated
0
115 ; m++) {-
116 if (-
117 __extension__ ({ size_t __s1_len, __s2_len; (__builtin_constant_p (
__extension__ ... )))); }) != 0Description
TRUEnever evaluated
FALSEnever evaluated
0
118 name
__extension__ ... )))); }) != 0Description
TRUEnever evaluated
FALSEnever evaluated
0
119 ) && __builtin_constant_p (
__extension__ ... )))); }) != 0Description
TRUEnever evaluated
FALSEnever evaluated
0
120 m->name
__extension__ ... )))); }) != 0Description
TRUEnever evaluated
FALSEnever evaluated
0
121 ) && (__s1_len = __builtin_strlen (
__extension__ ... )))); }) != 0Description
TRUEnever evaluated
FALSEnever evaluated
0
122 name
__extension__ ... )))); }) != 0Description
TRUEnever evaluated
FALSEnever evaluated
0
123 ), __s2_len = __builtin_strlen (
__extension__ ... )))); }) != 0Description
TRUEnever evaluated
FALSEnever evaluated
0
124 m->name
__extension__ ... )))); }) != 0Description
TRUEnever evaluated
FALSEnever evaluated
0
125 ), (!((size_t)(const void *)((
__extension__ ... )))); }) != 0Description
TRUEnever evaluated
FALSEnever evaluated
0
126 name
__extension__ ... )))); }) != 0Description
TRUEnever evaluated
FALSEnever evaluated
0
127 ) + 1) - (size_t)(const void *)(
__extension__ ... )))); }) != 0Description
TRUEnever evaluated
FALSEnever evaluated
0
128 name
__extension__ ... )))); }) != 0Description
TRUEnever evaluated
FALSEnever evaluated
0
129 ) == 1) || __s1_len >= 4) && (!((size_t)(const void *)((
__extension__ ... )))); }) != 0Description
TRUEnever evaluated
FALSEnever evaluated
0
130 m->name
__extension__ ... )))); }) != 0Description
TRUEnever evaluated
FALSEnever evaluated
0
131 ) + 1) - (size_t)(const void *)(
__extension__ ... )))); }) != 0Description
TRUEnever evaluated
FALSEnever evaluated
0
132 m->name
__extension__ ... )))); }) != 0Description
TRUEnever evaluated
FALSEnever evaluated
0
133 ) == 1) || __s2_len >= 4)) ? __builtin_strcmp (
__extension__ ... )))); }) != 0Description
TRUEnever evaluated
FALSEnever evaluated
0
134 name
__extension__ ... )))); }) != 0Description
TRUEnever evaluated
FALSEnever evaluated
0
135 ,
__extension__ ... )))); }) != 0Description
TRUEnever evaluated
FALSEnever evaluated
0
136 m->name
__extension__ ... )))); }) != 0Description
TRUEnever evaluated
FALSEnever evaluated
0
137 ) : (__builtin_constant_p (
__extension__ ... )))); }) != 0Description
TRUEnever evaluated
FALSEnever evaluated
0
138 name
__extension__ ... )))); }) != 0Description
TRUEnever evaluated
FALSEnever evaluated
0
139 ) && ((size_t)(const void *)((
__extension__ ... )))); }) != 0Description
TRUEnever evaluated
FALSEnever evaluated
0
140 name
__extension__ ... )))); }) != 0Description
TRUEnever evaluated
FALSEnever evaluated
0
141 ) + 1) - (size_t)(const void *)(
__extension__ ... )))); }) != 0Description
TRUEnever evaluated
FALSEnever evaluated
0
142 name
__extension__ ... )))); }) != 0Description
TRUEnever evaluated
FALSEnever evaluated
0
143 ) == 1) && (__s1_len = __builtin_strlen (
__extension__ ... )))); }) != 0Description
TRUEnever evaluated
FALSEnever evaluated
0
144 name
__extension__ ... )))); }) != 0Description
TRUEnever evaluated
FALSEnever evaluated
0
145 ), __s1_len < 4) ? (__builtin_constant_p (
__extension__ ... )))); }) != 0Description
TRUEnever evaluated
FALSEnever evaluated
0
146 m->name
__extension__ ... )))); }) != 0Description
TRUEnever evaluated
FALSEnever evaluated
0
147 ) && ((size_t)(const void *)((
__extension__ ... )))); }) != 0Description
TRUEnever evaluated
FALSEnever evaluated
0
148 m->name
__extension__ ... )))); }) != 0Description
TRUEnever evaluated
FALSEnever evaluated
0
149 ) + 1) - (size_t)(const void *)(
__extension__ ... )))); }) != 0Description
TRUEnever evaluated
FALSEnever evaluated
0
150 m->name
__extension__ ... )))); }) != 0Description
TRUEnever evaluated
FALSEnever evaluated
0
151 ) == 1) ? __builtin_strcmp (
__extension__ ... )))); }) != 0Description
TRUEnever evaluated
FALSEnever evaluated
0
152 name
__extension__ ... )))); }) != 0Description
TRUEnever evaluated
FALSEnever evaluated
0
153 ,
__extension__ ... )))); }) != 0Description
TRUEnever evaluated
FALSEnever evaluated
0
154 m->name
__extension__ ... )))); }) != 0Description
TRUEnever evaluated
FALSEnever evaluated
0
155 ) : (__extension__ ({ const unsigned char *__s2 = (const unsigned char *) (const char *) (
__extension__ ... )))); }) != 0Description
TRUEnever evaluated
FALSEnever evaluated
0
156 m->name
__extension__ ... )))); }) != 0Description
TRUEnever evaluated
FALSEnever evaluated
0
157 ); int __result = (((const unsigned char *) (const char *) (
__extension__ ... )))); }) != 0Description
TRUEnever evaluated
FALSEnever evaluated
0
158 name
__extension__ ... )))); }) != 0Description
TRUEnever evaluated
FALSEnever evaluated
0
159 ))[0] - __s2[0]); if (__s1_len > 0
__s1_len > 0Description
TRUEnever evaluated
FALSEnever evaluated
 && __result == 0
__result == 0Description
TRUEnever evaluated
FALSEnever evaluated
) { __result = (((const unsigned char *) (const char *) (
__extension__ ... )))); }) != 0Description
TRUEnever evaluated
FALSEnever evaluated
0
160 name
__extension__ ... )))); }) != 0Description
TRUEnever evaluated
FALSEnever evaluated
0
161 ))[1] - __s2[1]); if (__s1_len > 1
__s1_len > 1Description
TRUEnever evaluated
FALSEnever evaluated
 && __result == 0
__result == 0Description
TRUEnever evaluated
FALSEnever evaluated
) { __result = (((const unsigned char *) (const char *) (
__extension__ ... )))); }) != 0Description
TRUEnever evaluated
FALSEnever evaluated
0
162 name
__extension__ ... )))); }) != 0Description
TRUEnever evaluated
FALSEnever evaluated
0
163 ))[2] - __s2[2]); if (__s1_len > 2
__s1_len > 2Description
TRUEnever evaluated
FALSEnever evaluated
 && __result == 0
__result == 0Description
TRUEnever evaluated
FALSEnever evaluated
) __result = (((const unsigned char *) (const char *) (
never executed: __result = (((const unsigned char *) (const char *) ( name ))[3] - __s2[3]);
0
164 name
__extension__ ... )))); }) != 0Description
TRUEnever evaluated
FALSEnever evaluated
never executed: __result = (((const unsigned char *) (const char *) ( name ))[3] - __s2[3]);
0
165 ))[3] - __s2[3]); } } __result; }))) : (__builtin_constant_p (
__extension__ ... )))); }) != 0Description
TRUEnever evaluated
FALSEnever evaluated
0
166 m->name
__extension__ ... )))); }) != 0Description
TRUEnever evaluated
FALSEnever evaluated
0
167 ) && ((size_t)(const void *)((
__extension__ ... )))); }) != 0Description
TRUEnever evaluated
FALSEnever evaluated
0
168 m->name
__extension__ ... )))); }) != 0Description
TRUEnever evaluated
FALSEnever evaluated
0
169 ) + 1) - (size_t)(const void *)(
__extension__ ... )))); }) != 0Description
TRUEnever evaluated
FALSEnever evaluated
0
170 m->name
__extension__ ... )))); }) != 0Description
TRUEnever evaluated
FALSEnever evaluated
0
171 ) == 1) && (__s2_len = __builtin_strlen (
__extension__ ... )))); }) != 0Description
TRUEnever evaluated
FALSEnever evaluated
0
172 m->name
__extension__ ... )))); }) != 0Description
TRUEnever evaluated
FALSEnever evaluated
0
173 ), __s2_len < 4) ? (__builtin_constant_p (
__extension__ ... )))); }) != 0Description
TRUEnever evaluated
FALSEnever evaluated
0
174 name
__extension__ ... )))); }) != 0Description
TRUEnever evaluated
FALSEnever evaluated
0
175 ) && ((size_t)(const void *)((
__extension__ ... )))); }) != 0Description
TRUEnever evaluated
FALSEnever evaluated
0
176 name
__extension__ ... )))); }) != 0Description
TRUEnever evaluated
FALSEnever evaluated
0
177 ) + 1) - (size_t)(const void *)(
__extension__ ... )))); }) != 0Description
TRUEnever evaluated
FALSEnever evaluated
0
178 name
__extension__ ... )))); }) != 0Description
TRUEnever evaluated
FALSEnever evaluated
0
179 ) == 1) ? __builtin_strcmp (
__extension__ ... )))); }) != 0Description
TRUEnever evaluated
FALSEnever evaluated
0
180 name
__extension__ ... )))); }) != 0Description
TRUEnever evaluated
FALSEnever evaluated
0
181 ,
__extension__ ... )))); }) != 0Description
TRUEnever evaluated
FALSEnever evaluated
0
182 m->name
__extension__ ... )))); }) != 0Description
TRUEnever evaluated
FALSEnever evaluated
0
183 ) : -(__extension__ ({ const unsigned char *__s2 = (const unsigned char *) (const char *) (
__extension__ ... )))); }) != 0Description
TRUEnever evaluated
FALSEnever evaluated
0
184 name
__extension__ ... )))); }) != 0Description
TRUEnever evaluated
FALSEnever evaluated
0
185 ); int __result = (((const unsigned char *) (const char *) (
__extension__ ... )))); }) != 0Description
TRUEnever evaluated
FALSEnever evaluated
0
186 m->name
__extension__ ... )))); }) != 0Description
TRUEnever evaluated
FALSEnever evaluated
0
187 ))[0] - __s2[0]); if (__s2_len > 0
__s2_len > 0Description
TRUEnever evaluated
FALSEnever evaluated
 && __result == 0
__result == 0Description
TRUEnever evaluated
FALSEnever evaluated
) { __result = (((const unsigned char *) (const char *) (
__extension__ ... )))); }) != 0Description
TRUEnever evaluated
FALSEnever evaluated
0
188 m->name
__extension__ ... )))); }) != 0Description
TRUEnever evaluated
FALSEnever evaluated
0
189 ))[1] - __s2[1]); if (__s2_len > 1
__s2_len > 1Description
TRUEnever evaluated
FALSEnever evaluated
 && __result == 0
__result == 0Description
TRUEnever evaluated
FALSEnever evaluated
) { __result = (((const unsigned char *) (const char *) (
__extension__ ... )))); }) != 0Description
TRUEnever evaluated
FALSEnever evaluated
0
190 m->name
__extension__ ... )))); }) != 0Description
TRUEnever evaluated
FALSEnever evaluated
0
191 ))[2] - __s2[2]); if (__s2_len > 2
__s2_len > 2Description
TRUEnever evaluated
FALSEnever evaluated
 && __result == 0
__result == 0Description
TRUEnever evaluated
FALSEnever evaluated
) __result = (((const unsigned char *) (const char *) (
never executed: __result = (((const unsigned char *) (const char *) ( m->name ))[3] - __s2[3]);
0
192 m->name
__extension__ ... )))); }) != 0Description
TRUEnever evaluated
FALSEnever evaluated
never executed: __result = (((const unsigned char *) (const char *) ( m->name ))[3] - __s2[3]);
0
193 ))[3] - __s2[3]); } } __result; }))) : __builtin_strcmp (
__extension__ ... )))); }) != 0Description
TRUEnever evaluated
FALSEnever evaluated
0
194 name
__extension__ ... )))); }) != 0Description
TRUEnever evaluated
FALSEnever evaluated
0
195 ,
__extension__ ... )))); }) != 0Description
TRUEnever evaluated
FALSEnever evaluated
0
196 m->name
__extension__ ... )))); }) != 0Description
TRUEnever evaluated
FALSEnever evaluated
0
197 )))); })
__extension__ ... )))); }) != 0Description
TRUEnever evaluated
FALSEnever evaluated
0
198 != 0
__extension__ ... )))); }) != 0Description
TRUEnever evaluated
FALSEnever evaluated
)		0
199 continue;
never executed: continue;
0
200 if (mac !=
mac != ((void *)0)Description
TRUEnever evaluated
FALSEnever evaluated
0
201 ((void *)0)
mac != ((void *)0)Description
TRUEnever evaluated
FALSEnever evaluated
0
202 )-
203 return
never executed: return mac_setup_by_alg(mac, m);
 mac_setup_by_alg(mac, m);
never executed: return mac_setup_by_alg(mac, m);
0
204 return
never executed: return 0;
 0;
never executed: return 0;
0
205 }-
206 return
never executed: return -10;
 -10;
never executed: return -10;
0
207}-
208-
209int-
210mac_init(struct sshmac *mac)-
211{-
212 if (mac->key ==
mac->key == ((void *)0)Description
TRUEnever evaluated
FALSEnever evaluated
0
213 ((void *)0)
mac->key == ((void *)0)Description
TRUEnever evaluated
FALSEnever evaluated
0
214 )-
215 return
never executed: return -10;
 -10;
never executed: return -10;
0
216 switch (mac->type) {-
217 case
never executed: case 1:
 1:
never executed: case 1:
0
218 if (mac->hmac_ctx ==
mac->hmac_ctx == ((void *)0)Description
TRUEnever evaluated
FALSEnever evaluated
0
219 ((void *)0)
mac->hmac_ctx == ((void *)0)Description
TRUEnever evaluated
FALSEnever evaluated
 		0
220 ||-
221 ssh_hmac_init(mac->hmac_ctx, mac->key, mac->key_len) < 0
ssh_hmac_init(...->key_len) < 0Description
TRUEnever evaluated
FALSEnever evaluated
)		0
222 return
never executed: return -10;
 -10;
never executed: return -10;
0
223 return
never executed: return 0;
 0;
never executed: return 0;
0
224 case
never executed: case 2:
 2:
never executed: case 2:
0
225 if ((
(mac->umac_ctx...== ((void *)0)Description
TRUEnever evaluated
FALSEnever evaluated
mac->umac_ctx = umac_new(mac->key)) ==
(mac->umac_ctx...== ((void *)0)Description
TRUEnever evaluated
FALSEnever evaluated
0
226 ((void *)0)
(mac->umac_ctx...== ((void *)0)Description
TRUEnever evaluated
FALSEnever evaluated
0
227 )-
228 return
never executed: return -2;
 -2;
never executed: return -2;
0
229 return
never executed: return 0;
 0;
never executed: return 0;
0
230 case
never executed: case 3:
 3:
never executed: case 3:
0
231 if ((
(mac->umac_ctx...== ((void *)0)Description
TRUEnever evaluated
FALSEnever evaluated
mac->umac_ctx = umac128_new(mac->key)) ==
(mac->umac_ctx...== ((void *)0)Description
TRUEnever evaluated
FALSEnever evaluated
0
232 ((void *)0)
(mac->umac_ctx...== ((void *)0)Description
TRUEnever evaluated
FALSEnever evaluated
0
233 )-
234 return
never executed: return -2;
 -2;
never executed: return -2;
0
235 return
never executed: return 0;
 0;
never executed: return 0;
0
236 default
never executed: default:
:
never executed: default:
0
237 return
never executed: return -10;
 -10;
never executed: return -10;
0
238 }-
239}-
240-
241int-
242mac_compute(struct sshmac *mac, u_int32_t seqno,-
243 const u_char *data, int datalen,-
244 u_char *digest, size_t dlen)-
245{-
246 static union {-
247 u_char m[64];-
248 u_int64_t for_align;-
249 } u;-
250 u_char b[4];-
251 u_char nonce[8];-
252-
253 if (mac->mac_len > sizeof(u)
mac->mac_len > sizeof(u)Description
TRUEnever evaluated
FALSEnever evaluated
)		0
254 return
never executed: return -1;
 -1;
never executed: return -1;
0
255-
256 switch (mac->type) {-
257 case
never executed: case 1:
 1:
never executed: case 1:
0
258 put_u32(b, seqno);-
259-
260 if (ssh_hmac_init(mac->hmac_ctx,
ssh_hmac_init(... *)0) , 0) < 0Description
TRUEnever evaluated
FALSEnever evaluated
0
261 ((void *)0)
ssh_hmac_init(... *)0) , 0) < 0Description
TRUEnever evaluated
FALSEnever evaluated
0
262 , 0) < 0
ssh_hmac_init(... *)0) , 0) < 0Description
TRUEnever evaluated
FALSEnever evaluated
 ||		0
263 ssh_hmac_update(mac->hmac_ctx, b, sizeof(b)) < 0
ssh_hmac_updat...sizeof(b)) < 0Description
TRUEnever evaluated
FALSEnever evaluated
 ||		0
264 ssh_hmac_update(mac->hmac_ctx, data, datalen) < 0
ssh_hmac_updat..., datalen) < 0Description
TRUEnever evaluated
FALSEnever evaluated
 ||		0
265 ssh_hmac_final(mac->hmac_ctx, u.m, sizeof(u.m)) < 0
ssh_hmac_final...zeof(u.m)) < 0Description
TRUEnever evaluated
FALSEnever evaluated
)		0
266 return
never executed: return -22;
 -22;
never executed: return -22;
0
267 break;
never executed: break;
0
268 case
never executed: case 2:
 2:
never executed: case 2:
0
269 do { const u_int64_t __v = (seqno); ((u_char *)(nonce))[0] = (__v >> 56) & 0xff; ((u_char *)(nonce))[1] = (__v >> 48) & 0xff; ((u_char *)(nonce))[2] = (__v >> 40) & 0xff; ((u_char *)(nonce))[3] = (__v >> 32) & 0xff; ((u_char *)(nonce))[4] = (__v >> 24) & 0xff; ((u_char *)(nonce))[5] = (__v >> 16) & 0xff; ((u_char *)(nonce))[6] = (__v >> 8) & 0xff; ((u_char *)(nonce))[7] = __v & 0xff; } while (0);-
270 umac_update(mac->umac_ctx, data, datalen);-
271 umac_final(mac->umac_ctx, u.m, nonce);-
272 break;
never executed: break;
0
273 case
never executed: case 3:
 3:
never executed: case 3:
0
274 put_u64(nonce, seqno);-
275 umac128_update(mac->umac_ctx, data, datalen);-
276 umac128_final(mac->umac_ctx, u.m, nonce);-
277 break;
never executed: break;
0
278 default
never executed: default:
:
never executed: default:
0
279 return
never executed: return -10;
 -10;
never executed: return -10;
0
280 }-
281 if (digest !=
digest != ((void *)0)Description
TRUEnever evaluated
FALSEnever evaluated
0
282 ((void *)0)
digest != ((void *)0)Description
TRUEnever evaluated
FALSEnever evaluated
0
283 ) {-
284 if (dlen > mac->mac_len
dlen > mac->mac_lenDescription
TRUEnever evaluated
FALSEnever evaluated
)		0
285 dlen = mac->mac_len;
never executed: dlen = mac->mac_len;
0
286 memcpy(digest, u.m, dlen);-
287 }
never executed: end of block
0
288 return
never executed: return 0;
 0;
never executed: return 0;
0
289}-
290-
291int-
292mac_check(struct sshmac *mac, u_int32_t seqno,-
293 const u_char *data, size_t dlen,-
294 const u_char *theirmac, size_t mlen)-
295{-
296 u_char ourmac[64];-
297 int r;-
298-
299 if (mac->mac_len > mlen
mac->mac_len > mlenDescription
TRUEnever evaluated
FALSEnever evaluated
)		0
300 return
never executed: return -10;
 -10;
never executed: return -10;
0
301 if ((
(r = mac_compu...ourmac))) != 0Description
TRUEnever evaluated
FALSEnever evaluated
r = mac_compute(mac, seqno, data, dlen,
(r = mac_compu...ourmac))) != 0Description
TRUEnever evaluated
FALSEnever evaluated
0
302 ourmac, sizeof(ourmac))) != 0
(r = mac_compu...ourmac))) != 0Description
TRUEnever evaluated
FALSEnever evaluated
)		0
303 return
never executed: return r;
 r;
never executed: return r;
0
304 if (timingsafe_bcmp(ourmac, theirmac, mac->mac_len) != 0
timingsafe_bcm...>mac_len) != 0Description
TRUEnever evaluated
FALSEnever evaluated
)		0
305 return
never executed: return -30;
 -30;
never executed: return -30;
0
306 return
never executed: return 0;
 0;
never executed: return 0;
0
307}-
308-
309void-
310mac_clear(struct sshmac *mac)-
311{-
312 if (mac->type == 2
mac->type == 2Description
TRUEnever evaluated
FALSEevaluated 704 times by 1 test
Evaluated by:
  • test_kex
) {		0-704
313 if (mac->umac_ctx !=
mac->umac_ctx != ((void *)0)Description
TRUEnever evaluated
FALSEnever evaluated
0
314 ((void *)0)
mac->umac_ctx != ((void *)0)Description
TRUEnever evaluated
FALSEnever evaluated
0
315 )-
316 umac_delete(mac->umac_ctx);
never executed: umac_delete(mac->umac_ctx);
0
317 }
never executed: end of block
 else if (mac->type == 3
mac->type == 3Description
TRUEnever evaluated
FALSEevaluated 704 times by 1 test
Evaluated by:
  • test_kex
) {		0-704
318 if (mac->umac_ctx !=
mac->umac_ctx != ((void *)0)Description
TRUEnever evaluated
FALSEnever evaluated
0
319 ((void *)0)
mac->umac_ctx != ((void *)0)Description
TRUEnever evaluated
FALSEnever evaluated
0
320 )-
321 umac128_delete(mac->umac_ctx);
never executed: umac128_delete(mac->umac_ctx);
0
322 }
never executed: end of block
 else if (mac->hmac_ctx !=
mac->hmac_ctx != ((void *)0)Description
TRUEnever evaluated
FALSEevaluated 704 times by 1 test
Evaluated by:
  • test_kex
0-704
323 ((void *)0)
mac->hmac_ctx != ((void *)0)Description
TRUEnever evaluated
FALSEevaluated 704 times by 1 test
Evaluated by:
  • test_kex
0-704
324 )-
325 ssh_hmac_free(mac->hmac_ctx);
never executed: ssh_hmac_free(mac->hmac_ctx);
0
326 mac->hmac_ctx = -
327 ((void *)0)-
328 ;-
329 mac->umac_ctx = -
330 ((void *)0)-
331 ;-
332}
executed 704 times by 1 test: end of block
Executed by:
  • test_kex
704
333-
334-
335-
336int-
337mac_valid(const char *names)-
338{-
339 char *maclist, *cp, *p;-
340-
341 if (names ==
names == ((void *)0)Description
TRUEnever evaluated
FALSEnever evaluated
0
342 ((void *)0)
names == ((void *)0)Description
TRUEnever evaluated
FALSEnever evaluated
 		0
343 || -
344 __extension__ ({ size_t __s1_len, __s2_len; (__builtin_constant_p (
__extension__ ... )))); }) == 0Description
TRUEnever evaluated
FALSEnever evaluated
0
345 names
__extension__ ... )))); }) == 0Description
TRUEnever evaluated
FALSEnever evaluated
0
346 ) && __builtin_constant_p (
__extension__ ... )))); }) == 0Description
TRUEnever evaluated
FALSEnever evaluated
0
347 ""
__extension__ ... )))); }) == 0Description
TRUEnever evaluated
FALSEnever evaluated
0
348 ) && (__s1_len = __builtin_strlen (
__extension__ ... )))); }) == 0Description
TRUEnever evaluated
FALSEnever evaluated
0
349 names
__extension__ ... )))); }) == 0Description
TRUEnever evaluated
FALSEnever evaluated
0
350 ), __s2_len = __builtin_strlen (
__extension__ ... )))); }) == 0Description
TRUEnever evaluated
FALSEnever evaluated
0
351 ""
__extension__ ... )))); }) == 0Description
TRUEnever evaluated
FALSEnever evaluated
0
352 ), (!((size_t)(const void *)((
__extension__ ... )))); }) == 0Description
TRUEnever evaluated
FALSEnever evaluated
0
353 names
__extension__ ... )))); }) == 0Description
TRUEnever evaluated
FALSEnever evaluated
0
354 ) + 1) - (size_t)(const void *)(
__extension__ ... )))); }) == 0Description
TRUEnever evaluated
FALSEnever evaluated
0
355 names
__extension__ ... )))); }) == 0Description
TRUEnever evaluated
FALSEnever evaluated
0
356 ) == 1) || __s1_len >= 4) && (!((size_t)(const void *)((
__extension__ ... )))); }) == 0Description
TRUEnever evaluated
FALSEnever evaluated
0
357 ""
__extension__ ... )))); }) == 0Description
TRUEnever evaluated
FALSEnever evaluated
0
358 ) + 1) - (size_t)(const void *)(
__extension__ ... )))); }) == 0Description
TRUEnever evaluated
FALSEnever evaluated
0
359 ""
__extension__ ... )))); }) == 0Description
TRUEnever evaluated
FALSEnever evaluated
0
360 ) == 1) || __s2_len >= 4)) ? __builtin_strcmp (
__extension__ ... )))); }) == 0Description
TRUEnever evaluated
FALSEnever evaluated
0
361 names
__extension__ ... )))); }) == 0Description
TRUEnever evaluated
FALSEnever evaluated
0
362 ,
__extension__ ... )))); }) == 0Description
TRUEnever evaluated
FALSEnever evaluated
0
363 ""
__extension__ ... )))); }) == 0Description
TRUEnever evaluated
FALSEnever evaluated
0
364 ) : (__builtin_constant_p (
__extension__ ... )))); }) == 0Description
TRUEnever evaluated
FALSEnever evaluated
0
365 names
__extension__ ... )))); }) == 0Description
TRUEnever evaluated
FALSEnever evaluated
0
366 ) && ((size_t)(const void *)((
__extension__ ... )))); }) == 0Description
TRUEnever evaluated
FALSEnever evaluated
0
367 names
__extension__ ... )))); }) == 0Description
TRUEnever evaluated
FALSEnever evaluated
0
368 ) + 1) - (size_t)(const void *)(
__extension__ ... )))); }) == 0Description
TRUEnever evaluated
FALSEnever evaluated
0
369 names
__extension__ ... )))); }) == 0Description
TRUEnever evaluated
FALSEnever evaluated
0
370 ) == 1) && (__s1_len = __builtin_strlen (
__extension__ ... )))); }) == 0Description
TRUEnever evaluated
FALSEnever evaluated
0
371 names
__extension__ ... )))); }) == 0Description
TRUEnever evaluated
FALSEnever evaluated
0
372 ), __s1_len < 4) ? (__builtin_constant_p (
__extension__ ... )))); }) == 0Description
TRUEnever evaluated
FALSEnever evaluated
0
373 ""
__extension__ ... )))); }) == 0Description
TRUEnever evaluated
FALSEnever evaluated
0
374 ) && ((size_t)(const void *)((
__extension__ ... )))); }) == 0Description
TRUEnever evaluated
FALSEnever evaluated
0
375 ""
__extension__ ... )))); }) == 0Description
TRUEnever evaluated
FALSEnever evaluated
0
376 ) + 1) - (size_t)(const void *)(
__extension__ ... )))); }) == 0Description
TRUEnever evaluated
FALSEnever evaluated
0
377 ""
__extension__ ... )))); }) == 0Description
TRUEnever evaluated
FALSEnever evaluated
0
378 ) == 1) ? __builtin_strcmp (
__extension__ ... )))); }) == 0Description
TRUEnever evaluated
FALSEnever evaluated
0
379 names
__extension__ ... )))); }) == 0Description
TRUEnever evaluated
FALSEnever evaluated
0
380 ,
__extension__ ... )))); }) == 0Description
TRUEnever evaluated
FALSEnever evaluated
0
381 ""
__extension__ ... )))); }) == 0Description
TRUEnever evaluated
FALSEnever evaluated
0
382 ) : (__extension__ ({ const unsigned char *__s2 = (const unsigned char *) (const char *) (
__extension__ ... )))); }) == 0Description
TRUEnever evaluated
FALSEnever evaluated
0
383 ""
__extension__ ... )))); }) == 0Description
TRUEnever evaluated
FALSEnever evaluated
0
384 ); int __result = (((const unsigned char *) (const char *) (
__extension__ ... )))); }) == 0Description
TRUEnever evaluated
FALSEnever evaluated
0
385 names
__extension__ ... )))); }) == 0Description
TRUEnever evaluated
FALSEnever evaluated
0
386 ))[0] - __s2[0]); if (__s1_len > 0
__s1_len > 0Description
TRUEnever evaluated
FALSEnever evaluated
 && __result == 0
__result == 0Description
TRUEnever evaluated
FALSEnever evaluated
) { __result = (((const unsigned char *) (const char *) (
__extension__ ... )))); }) == 0Description
TRUEnever evaluated
FALSEnever evaluated
0
387 names
__extension__ ... )))); }) == 0Description
TRUEnever evaluated
FALSEnever evaluated
0
388 ))[1] - __s2[1]); if (__s1_len > 1
__s1_len > 1Description
TRUEnever evaluated
FALSEnever evaluated
 && __result == 0
__result == 0Description
TRUEnever evaluated
FALSEnever evaluated
) { __result = (((const unsigned char *) (const char *) (
__extension__ ... )))); }) == 0Description
TRUEnever evaluated
FALSEnever evaluated
0
389 names
__extension__ ... )))); }) == 0Description
TRUEnever evaluated
FALSEnever evaluated
0
390 ))[2] - __s2[2]); if (__s1_len > 2
__s1_len > 2Description
TRUEnever evaluated
FALSEnever evaluated
 && __result == 0
__result == 0Description
TRUEnever evaluated
FALSEnever evaluated
) __result = (((const unsigned char *) (const char *) (
never executed: __result = (((const unsigned char *) (const char *) ( names ))[3] - __s2[3]);
0
391 names
__extension__ ... )))); }) == 0Description
TRUEnever evaluated
FALSEnever evaluated
never executed: __result = (((const unsigned char *) (const char *) ( names ))[3] - __s2[3]);
0
392 ))[3] - __s2[3]); } } __result; }))) : (__builtin_constant_p (
__extension__ ... )))); }) == 0Description
TRUEnever evaluated
FALSEnever evaluated
0
393 ""
__extension__ ... )))); }) == 0Description
TRUEnever evaluated
FALSEnever evaluated
0
394 ) && ((size_t)(const void *)((
__extension__ ... )))); }) == 0Description
TRUEnever evaluated
FALSEnever evaluated
0
395 ""
__extension__ ... )))); }) == 0Description
TRUEnever evaluated
FALSEnever evaluated
0
396 ) + 1) - (size_t)(const void *)(
__extension__ ... )))); }) == 0Description
TRUEnever evaluated
FALSEnever evaluated
0
397 ""
__extension__ ... )))); }) == 0Description
TRUEnever evaluated
FALSEnever evaluated
0
398 ) == 1) && (__s2_len = __builtin_strlen (
__extension__ ... )))); }) == 0Description
TRUEnever evaluated
FALSEnever evaluated
0
399 ""
__extension__ ... )))); }) == 0Description
TRUEnever evaluated
FALSEnever evaluated
0
400 ), __s2_len < 4) ? (__builtin_constant_p (
__extension__ ... )))); }) == 0Description
TRUEnever evaluated
FALSEnever evaluated
0
401 names
__extension__ ... )))); }) == 0Description
TRUEnever evaluated
FALSEnever evaluated
0
402 ) && ((size_t)(const void *)((
__extension__ ... )))); }) == 0Description
TRUEnever evaluated
FALSEnever evaluated
0
403 names
__extension__ ... )))); }) == 0Description
TRUEnever evaluated
FALSEnever evaluated
0
404 ) + 1) - (size_t)(const void *)(
__extension__ ... )))); }) == 0Description
TRUEnever evaluated
FALSEnever evaluated
0
405 names
__extension__ ... )))); }) == 0Description
TRUEnever evaluated
FALSEnever evaluated
0
406 ) == 1) ? __builtin_strcmp (
__extension__ ... )))); }) == 0Description
TRUEnever evaluated
FALSEnever evaluated
0
407 names
__extension__ ... )))); }) == 0Description
TRUEnever evaluated
FALSEnever evaluated
0
408 ,
__extension__ ... )))); }) == 0Description
TRUEnever evaluated
FALSEnever evaluated
0
409 ""
__extension__ ... )))); }) == 0Description
TRUEnever evaluated
FALSEnever evaluated
0
410 ) : -(__extension__ ({ const unsigned char *__s2 = (const unsigned char *) (const char *) (
__extension__ ... )))); }) == 0Description
TRUEnever evaluated
FALSEnever evaluated
0
411 names
__extension__ ... )))); }) == 0Description
TRUEnever evaluated
FALSEnever evaluated
0
412 ); int __result = (((const unsigned char *) (const char *) (
__extension__ ... )))); }) == 0Description
TRUEnever evaluated
FALSEnever evaluated
0
413 ""
__extension__ ... )))); }) == 0Description
TRUEnever evaluated
FALSEnever evaluated
0
414 ))[0] - __s2[0]); if (__s2_len > 0
__s2_len > 0Description
TRUEnever evaluated
FALSEnever evaluated
 && __result == 0
__result == 0Description
TRUEnever evaluated
FALSEnever evaluated
) { __result = (((const unsigned char *) (const char *) (
__extension__ ... )))); }) == 0Description
TRUEnever evaluated
FALSEnever evaluated
0
415 ""
__extension__ ... )))); }) == 0Description
TRUEnever evaluated
FALSEnever evaluated
0
416 ))[1] - __s2[1]); if (__s2_len > 1
__s2_len > 1Description
TRUEnever evaluated
FALSEnever evaluated
 && __result == 0
__result == 0Description
TRUEnever evaluated
FALSEnever evaluated
) { __result = (((const unsigned char *) (const char *) (
__extension__ ... )))); }) == 0Description
TRUEnever evaluated
FALSEnever evaluated
0
417 ""
__extension__ ... )))); }) == 0Description
TRUEnever evaluated
FALSEnever evaluated
0
418 ))[2] - __s2[2]); if (__s2_len > 2
__s2_len > 2Description
TRUEnever evaluated
FALSEnever evaluated
 && __result == 0
__result == 0Description
TRUEnever evaluated
FALSEnever evaluated
) __result = (((const unsigned char *) (const char *) (
never executed: __result = (((const unsigned char *) (const char *) ( "" ))[3] - __s2[3]);
0
419 ""
__extension__ ... )))); }) == 0Description
TRUEnever evaluated
FALSEnever evaluated
never executed: __result = (((const unsigned char *) (const char *) ( "" ))[3] - __s2[3]);
0
420 ))[3] - __s2[3]); } } __result; }))) : __builtin_strcmp (
__extension__ ... )))); }) == 0Description
TRUEnever evaluated
FALSEnever evaluated
0
421 names
__extension__ ... )))); }) == 0Description
TRUEnever evaluated
FALSEnever evaluated
0
422 ,
__extension__ ... )))); }) == 0Description
TRUEnever evaluated
FALSEnever evaluated
0
423 ""
__extension__ ... )))); }) == 0Description
TRUEnever evaluated
FALSEnever evaluated
0
424 )))); })
__extension__ ... )))); }) == 0Description
TRUEnever evaluated
FALSEnever evaluated
0
425 == 0
__extension__ ... )))); }) == 0Description
TRUEnever evaluated
FALSEnever evaluated
)		0
426 return
never executed: return 0;
 0;
never executed: return 0;
0
427 if ((
(maclist = cp ...== ((void *)0)Description
TRUEnever evaluated
FALSEnever evaluated
maclist = cp =
(maclist = cp ...== ((void *)0)Description
TRUEnever evaluated
FALSEnever evaluated
0
428 (__extension__ (__builtin_constant_p (
__builtin_constant_p ( names )Description
TRUEnever evaluated
FALSEnever evaluated
(maclist = cp ...== ((void *)0)Description
TRUEnever evaluated
FALSEnever evaluated
0
429 names
__builtin_constant_p ( names )Description
TRUEnever evaluated
FALSEnever evaluated
(maclist = cp ...== ((void *)0)Description
TRUEnever evaluated
FALSEnever evaluated
0
430 )
__builtin_constant_p ( names )Description
TRUEnever evaluated
FALSEnever evaluated
 && ((
((size_t)(cons... names ) == 1)Description
TRUEnever evaluated
FALSEnever evaluated
size_t)(const void *)((
((size_t)(cons... names ) == 1)Description
TRUEnever evaluated
FALSEnever evaluated
(maclist = cp ...== ((void *)0)Description
TRUEnever evaluated
FALSEnever evaluated
0
431 names
((size_t)(cons... names ) == 1)Description
TRUEnever evaluated
FALSEnever evaluated
(maclist = cp ...== ((void *)0)Description
TRUEnever evaluated
FALSEnever evaluated
0
432 ) + 1) - (size_t)(const void *)(
((size_t)(cons... names ) == 1)Description
TRUEnever evaluated
FALSEnever evaluated
(maclist = cp ...== ((void *)0)Description
TRUEnever evaluated
FALSEnever evaluated
0
433 names
((size_t)(cons... names ) == 1)Description
TRUEnever evaluated
FALSEnever evaluated
(maclist = cp ...== ((void *)0)Description
TRUEnever evaluated
FALSEnever evaluated
0
434 ) == 1)
((size_t)(cons... names ) == 1)Description
TRUEnever evaluated
FALSEnever evaluated
 ? (((const
((const char *... ))[0] == '\0'Description
TRUEnever evaluated
FALSEnever evaluated
 char *) (
((const char *... ))[0] == '\0'Description
TRUEnever evaluated
FALSEnever evaluated
(maclist = cp ...== ((void *)0)Description
TRUEnever evaluated
FALSEnever evaluated
0
435 names
((const char *... ))[0] == '\0'Description
TRUEnever evaluated
FALSEnever evaluated
(maclist = cp ...== ((void *)0)Description
TRUEnever evaluated
FALSEnever evaluated
0
436 ))[0] == '\0'
((const char *... ))[0] == '\0'Description
TRUEnever evaluated
FALSEnever evaluated
 ? (char *) calloc ((size_t) 1, (size_t) 1) : ({ size_t __len = strlen (
(maclist = cp ...== ((void *)0)Description
TRUEnever evaluated
FALSEnever evaluated
0
437 names
(maclist = cp ...== ((void *)0)Description
TRUEnever evaluated
FALSEnever evaluated
0
438 ) + 1; char *__retval = (char *) malloc (__len); if (__retval != ((void *)0)
__retval != ((void *)0)Description
TRUEnever evaluated
FALSEnever evaluated
) __retval = (char *) memcpy (__retval,
never executed: __retval = (char *) memcpy (__retval, names , __len);
0
439 names
(maclist = cp ...== ((void *)0)Description
TRUEnever evaluated
FALSEnever evaluated
never executed: __retval = (char *) memcpy (__retval, names , __len);
0
440 , __len); __retval; })) : __strdup (
(maclist = cp ...== ((void *)0)Description
TRUEnever evaluated
FALSEnever evaluated
0
441 names
(maclist = cp ...== ((void *)0)Description
TRUEnever evaluated
FALSEnever evaluated
0
442 )))
(maclist = cp ...== ((void *)0)Description
TRUEnever evaluated
FALSEnever evaluated
0
443 ) ==
(maclist = cp ...== ((void *)0)Description
TRUEnever evaluated
FALSEnever evaluated
0
444 ((void *)0)
(maclist = cp ...== ((void *)0)Description
TRUEnever evaluated
FALSEnever evaluated
0
445 )-
446 return
never executed: return 0;
 0;
never executed: return 0;
0
447 for ((p = -
448 __extension__ ({ char __r0, __r1, __r2; (__builtin_constant_p (-
449 ","-
450 ) && ((size_t)(const void *)((-
451 ","-
452 ) + 1) - (size_t)(const void *)(-
453 ","-
454 ) == 1) && (__r0 = ((const char *) (-
455 ","-
456 ))[0], ((const char *) (-
457 ","-
458 ))[0] != '\0') ? ((__r1 = ((const char *) (-
459 ","-
460 ))[1], ((const char *) (-
461 ","-
462 ))[1] == '\0') ? __strsep_1c (-
463 &cp-
464 , __r0) : ((__r2 = ((const char *) (-
465 ","-
466 ))[2], __r2 == '\0') ? __strsep_2c (-
467 &cp-
468 , __r0, __r1) : (((const char *) (-
469 ","-
470 ))[3] == '\0' ? __strsep_3c (-
471 &cp-
472 , __r0, __r1, __r2) : __strsep_g (-
473 &cp-
474 , -
475 ","-
476 )))) : __strsep_g (-
477 &cp-
478 , -
479 ","-
480 )); })-
481 ); p
pDescription
TRUEnever evaluated
FALSEnever evaluated
 && *
*p != '\0'Description
TRUEnever evaluated
FALSEnever evaluated
p != '\0'
*p != '\0'Description
TRUEnever evaluated
FALSEnever evaluated
;		0
482 (p = -
483 __extension__ ({ char __r0, __r1, __r2; (__builtin_constant_p (-
484 ","-
485 ) && ((size_t)(const void *)((-
486 ","-
487 ) + 1) - (size_t)(const void *)(-
488 ","-
489 ) == 1) && (__r0 = ((const char *) (-
490 ","-
491 ))[0], ((const char *) (-
492 ","-
493 ))[0] != '\0') ? ((__r1 = ((const char *) (-
494 ","-
495 ))[1], ((const char *) (-
496 ","-
497 ))[1] == '\0') ? __strsep_1c (-
498 &cp-
499 , __r0) : ((__r2 = ((const char *) (-
500 ","-
501 ))[2], __r2 == '\0') ? __strsep_2c (-
502 &cp-
503 , __r0, __r1) : (((const char *) (-
504 ","-
505 ))[3] == '\0' ? __strsep_3c (-
506 &cp-
507 , __r0, __r1, __r2) : __strsep_g (-
508 &cp-
509 , -
510 ","-
511 )))) : __strsep_g (-
512 &cp-
513 , -
514 ","-
515 )); })-
516 )) {-
517 if (mac_setup(
mac_setup( ((v... *)0) , p) < 0Description
TRUEnever evaluated
FALSEnever evaluated
0
518 ((void *)0)
mac_setup( ((v... *)0) , p) < 0Description
TRUEnever evaluated
FALSEnever evaluated
0
519 , p) < 0
mac_setup( ((v... *)0) , p) < 0Description
TRUEnever evaluated
FALSEnever evaluated
) {		0
520 free(maclist);-
521 return
never executed: return 0;
 0;
never executed: return 0;
0
522 }-
523 }
never executed: end of block
0
524 free(maclist);-
525 return
never executed: return 1;
 1;
never executed: return 1;
0
526}-
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