OpenCoverage

enc_read.c

Absolute File Name:/home/opencoverage/opencoverage/guest-scripts/libressl/src/crypto/des/enc_read.c
Switch to Source codePreprocessed file
LineSourceCount
1-
2-
3-
4-
5-
6int DES_rw_mode = 1;-
7int DES_enc_read(int fd, void *buf, int len, DES_key_schedule *sched,-
8 DES_cblock *iv)-
9 {-
10-
11 int net_num=0;-
12 static unsigned char *net=-
13 ((void *)0)-
14 ;-
15-
16-
17-
18 static unsigned char *unnet=-
19 ((void *)0)-
20 ;-
21 static int unnet_start=0;-
22 static int unnet_left=0;-
23 static unsigned char *tmpbuf=-
24 ((void *)0)-
25 ;-
26 int i;-
27 long num=0,rnum;-
28 unsigned char *p;-
29-
30 if (tmpbuf ==
tmpbuf == ((void *)0)Description
TRUEnever evaluated
FALSEnever evaluated
0
31 ((void *)0)
tmpbuf == ((void *)0)Description
TRUEnever evaluated
FALSEnever evaluated
0
32 )-
33 {-
34 tmpbuf=malloc(((1024*16)+4));-
35 if (tmpbuf ==
tmpbuf == ((void *)0)Description
TRUEnever evaluated
FALSEnever evaluated
0
36 ((void *)0)
tmpbuf == ((void *)0)Description
TRUEnever evaluated
FALSEnever evaluated
0
37 ) return
never executed: return(-1);
(-1);
never executed: return(-1);
0
38 }
never executed: end of block
0
39 if (net ==
net == ((void *)0)Description
TRUEnever evaluated
FALSEnever evaluated
0
40 ((void *)0)
net == ((void *)0)Description
TRUEnever evaluated
FALSEnever evaluated
0
41 )-
42 {-
43 net=malloc(((1024*16)+4));-
44 if (net ==
net == ((void *)0)Description
TRUEnever evaluated
FALSEnever evaluated
0
45 ((void *)0)
net == ((void *)0)Description
TRUEnever evaluated
FALSEnever evaluated
0
46 ) return
never executed: return(-1);
(-1);
never executed: return(-1);
0
47 }
never executed: end of block
0
48 if (unnet ==
unnet == ((void *)0)Description
TRUEnever evaluated
FALSEnever evaluated
0
49 ((void *)0)
unnet == ((void *)0)Description
TRUEnever evaluated
FALSEnever evaluated
0
50 )-
51 {-
52 unnet=malloc(((1024*16)+4));-
53 if (unnet ==
unnet == ((void *)0)Description
TRUEnever evaluated
FALSEnever evaluated
0
54 ((void *)0)
unnet == ((void *)0)Description
TRUEnever evaluated
FALSEnever evaluated
0
55 ) return
never executed: return(-1);
(-1);
never executed: return(-1);
0
56 }
never executed: end of block
0
57-
58 if (unnet_left != 0
unnet_left != 0Description
TRUEnever evaluated
FALSEnever evaluated
)		0
59 {-
60 if (unnet_left < len
unnet_left < lenDescription
TRUEnever evaluated
FALSEnever evaluated
)		0
61 {-
62-
63-
64-
65 memcpy(buf,&(unnet[unnet_start]),-
66 unnet_left);-
67-
68-
69 i=unnet_left;-
70 unnet_start=unnet_left=0;-
71 }
never executed: end of block
0
72 else-
73 {-
74 memcpy(buf,&(unnet[unnet_start]),len);-
75 unnet_start+=len;-
76 unnet_left-=len;-
77 i=len;-
78 }
never executed: end of block
0
79 return
never executed: return(i);
(i);
never executed: return(i);
0
80 }-
81-
82-
83 if (len > (1024*16)
len > (1024*16)Description
TRUEnever evaluated
FALSEnever evaluated
) len=(1024*16);
never executed: len=(1024*16);
0
84-
85-
86 while (net_num < 4
net_num < 4Description
TRUEnever evaluated
FALSEnever evaluated
)		0
87 {-
88 i=read(fd,(void *)&(net[net_num]),4 -net_num);-
89-
90 if ((
(i == -1)Description
TRUEnever evaluated
FALSEnever evaluated
i == -1)
(i == -1)Description
TRUEnever evaluated
FALSEnever evaluated
 && (
( (*__errno_lo...ion ()) == 4 )Description
TRUEnever evaluated
FALSEnever evaluated
0
91 (*__errno_location ())
( (*__errno_lo...ion ()) == 4 )Description
TRUEnever evaluated
FALSEnever evaluated
0
92 ==
( (*__errno_lo...ion ()) == 4 )Description
TRUEnever evaluated
FALSEnever evaluated
0
93 4
( (*__errno_lo...ion ()) == 4 )Description
TRUEnever evaluated
FALSEnever evaluated
0
94 )
( (*__errno_lo...ion ()) == 4 )Description
TRUEnever evaluated
FALSEnever evaluated
) continue;
never executed: continue;
0
95-
96 if (i <= 0
i <= 0Description
TRUEnever evaluated
FALSEnever evaluated
) return
never executed: return(0);
(0);
never executed: return(0);
0
97 net_num+=i;-
98 }
never executed: end of block
0
99-
100-
101 p=net;-
102-
103 (num =((unsigned int)(*((p)++)))<<24L, num|=((unsigned int)(*((p)++)))<<16L, num|=((unsigned int)(*((p)++)))<< 8L, num|=((unsigned int)(*((p)++))));-
104-
105-
106-
107 if ((
(num > (1024*16))Description
TRUEnever evaluated
FALSEnever evaluated
num > (1024*16))
(num > (1024*16))Description
TRUEnever evaluated
FALSEnever evaluated
 || (
(num < 0)Description
TRUEnever evaluated
FALSEnever evaluated
num < 0)
(num < 0)Description
TRUEnever evaluated
FALSEnever evaluated
)		0
108 return
never executed: return(-1);
(-1);
never executed: return(-1);
0
109 rnum=(
(num < 8)Description
TRUEnever evaluated
FALSEnever evaluated
num < 8)
(num < 8)Description
TRUEnever evaluated
FALSEnever evaluated
?8:((num+7)/8*8);		0
110-
111 net_num=0;-
112 while (net_num < rnum
net_num < rnumDescription
TRUEnever evaluated
FALSEnever evaluated
)		0
113 {-
114 i=read(fd,(void *)&(net[net_num]),rnum-net_num);-
115-
116 if ((
(i == -1)Description
TRUEnever evaluated
FALSEnever evaluated
i == -1)
(i == -1)Description
TRUEnever evaluated
FALSEnever evaluated
 && (
( (*__errno_lo...ion ()) == 4 )Description
TRUEnever evaluated
FALSEnever evaluated
0
117 (*__errno_location ())
( (*__errno_lo...ion ()) == 4 )Description
TRUEnever evaluated
FALSEnever evaluated
0
118 ==
( (*__errno_lo...ion ()) == 4 )Description
TRUEnever evaluated
FALSEnever evaluated
0
119 4
( (*__errno_lo...ion ()) == 4 )Description
TRUEnever evaluated
FALSEnever evaluated
0
120 )
( (*__errno_lo...ion ()) == 4 )Description
TRUEnever evaluated
FALSEnever evaluated
) continue;
never executed: continue;
0
121-
122 if (i <= 0
i <= 0Description
TRUEnever evaluated
FALSEnever evaluated
) return
never executed: return(0);
(0);
never executed: return(0);
0
123 net_num+=i;-
124 }
never executed: end of block
0
125-
126-
127 if (len < num
len < numDescription
TRUEnever evaluated
FALSEnever evaluated
)		0
128 {-
129 if (DES_rw_mode & 1
DES_rw_mode & 1Description
TRUEnever evaluated
FALSEnever evaluated
)		0
130 DES_pcbc_encrypt(net,unnet,num,sched,iv,0);
never executed: DES_pcbc_encrypt(net,unnet,num,sched,iv,0);
0
131 else-
132 DES_cbc_encrypt(net,unnet,num,sched,iv,0);
never executed: DES_cbc_encrypt(net,unnet,num,sched,iv,0);
0
133 memcpy(buf,unnet,len);-
134 unnet_start=len;-
135 unnet_left=num-len;-
136-
137-
138-
139 num=len;-
140 }
never executed: end of block
0
141 else-
142 {-
143-
144-
145-
146-
147-
148 if (len < rnum
len < rnumDescription
TRUEnever evaluated
FALSEnever evaluated
)		0
149 {-
150-
151 if (DES_rw_mode & 1
DES_rw_mode & 1Description
TRUEnever evaluated
FALSEnever evaluated
)		0
152 DES_pcbc_encrypt(net,tmpbuf,num,sched,iv,
never executed: DES_pcbc_encrypt(net,tmpbuf,num,sched,iv, 0);
0
153 0);
never executed: DES_pcbc_encrypt(net,tmpbuf,num,sched,iv, 0);
0
154 else-
155 DES_cbc_encrypt(net,tmpbuf,num,sched,iv,
never executed: DES_cbc_encrypt(net,tmpbuf,num,sched,iv, 0);
0
156 0);
never executed: DES_cbc_encrypt(net,tmpbuf,num,sched,iv, 0);
0
157-
158-
159-
160 memcpy(buf,tmpbuf,num);-
161 }
never executed: end of block
0
162 else-
163 {-
164 if (DES_rw_mode & 1
DES_rw_mode & 1Description
TRUEnever evaluated
FALSEnever evaluated
)		0
165 DES_pcbc_encrypt(net,buf,num,sched,iv,
never executed: DES_pcbc_encrypt(net,buf,num,sched,iv, 0);
0
166 0);
never executed: DES_pcbc_encrypt(net,buf,num,sched,iv, 0);
0
167 else-
168 DES_cbc_encrypt(net,buf,num,sched,iv,
never executed: DES_cbc_encrypt(net,buf,num,sched,iv, 0);
0
169 0);
never executed: DES_cbc_encrypt(net,buf,num,sched,iv, 0);
0
170 }-
171 }-
172 return
never executed: return num;
 num;
never executed: return num;
0
173 }-
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