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enc_writ.c

Absolute File Name:/home/opencoverage/opencoverage/guest-scripts/libressl/src/crypto/des/enc_writ.c
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LineSourceCount
1-
2-
3int DES_enc_write(int fd, const void *_buf, int len,-
4 DES_key_schedule *sched, DES_cblock *iv)-
5 {-
6-
7-
8-
9-
10 const unsigned char *buf=_buf;-
11 long rnum;-
12 int i,j,k,outnum;-
13 static unsigned char *outbuf=-
14 ((void *)0)-
15 ;-
16 unsigned char shortbuf[8];-
17 unsigned char *p;-
18 const unsigned char *cp;-
19 static int start=1;-
20-
21 if (outbuf ==
outbuf == ((void *)0)Description
TRUEnever evaluated
FALSEnever evaluated
0
22 ((void *)0)
outbuf == ((void *)0)Description
TRUEnever evaluated
FALSEnever evaluated
0
23 )-
24 {-
25 outbuf=malloc(((1024*16)+4)+4);-
26 if (outbuf ==
outbuf == ((void *)0)Description
TRUEnever evaluated
FALSEnever evaluated
0
27 ((void *)0)
outbuf == ((void *)0)Description
TRUEnever evaluated
FALSEnever evaluated
0
28 ) return
never executed: return(-1);
(-1);
never executed: return(-1);
0
29 }
never executed: end of block
0
30-
31-
32 if (start
startDescription
TRUEnever evaluated
FALSEnever evaluated
)		0
33 {-
34 start=0;-
35 }
never executed: end of block
0
36-
37-
38 if (len > (1024*16)
len > (1024*16)Description
TRUEnever evaluated
FALSEnever evaluated
)		0
39 {-
40 j=0;-
41 for (i=0; i<len
i<lenDescription
TRUEnever evaluated
FALSEnever evaluated
; i+=k)		0
42 {-
43 k=DES_enc_write(fd,&(buf[i]),-
44 ((len-i) > (1024*16))?(1024*16):(len-i),sched,iv);-
45 if (k < 0
k < 0Description
TRUEnever evaluated
FALSEnever evaluated
)		0
46 return
never executed: return(k);
(k);
never executed: return(k);
0
47 else-
48 j+=k;
never executed: j+=k;
0
49 }-
50 return
never executed: return(j);
(j);
never executed: return(j);
0
51 }-
52-
53-
54 p=outbuf;-
55 (*((p)++)=(unsigned char)(((len)>>24L)&0xff), *((p)++)=(unsigned char)(((len)>>16L)&0xff), *((p)++)=(unsigned char)(((len)>> 8L)&0xff), *((p)++)=(unsigned char)(((len) )&0xff));-
56-
57-
58 if (len < 8
len < 8Description
TRUEnever evaluated
FALSEnever evaluated
)		0
59 {-
60 cp=shortbuf;-
61 memcpy(shortbuf,buf,len);-
62 arc4random_buf(shortbuf+len, 8-len);-
63 rnum=8;-
64 }
never executed: end of block
0
65 else-
66 {-
67 cp=buf;-
68 rnum=((len+7)/8*8);-
69 }
never executed: end of block
0
70-
71 if (DES_rw_mode & 1
DES_rw_mode & 1Description
TRUEnever evaluated
FALSEnever evaluated
)		0
72 DES_pcbc_encrypt(cp,&(outbuf[4]),(len<8)?8:len,sched,iv,
never executed: DES_pcbc_encrypt(cp,&(outbuf[4]),(len<8)?8:len,sched,iv, 1);
0
73 1);
never executed: DES_pcbc_encrypt(cp,&(outbuf[4]),(len<8)?8:len,sched,iv, 1);
0
74 else-
75 DES_cbc_encrypt(cp,&(outbuf[4]),(len<8)?8:len,sched,iv,
never executed: DES_cbc_encrypt(cp,&(outbuf[4]),(len<8)?8:len,sched,iv, 1);
0
76 1);
never executed: DES_cbc_encrypt(cp,&(outbuf[4]),(len<8)?8:len,sched,iv, 1);
0
77-
78-
79 outnum=rnum+4;-
80-
81 for (j=0; j<outnum
j<outnumDescription
TRUEnever evaluated
FALSEnever evaluated
; j+=i)		0
82 {-
83-
84-
85 i=write(fd,(void *)&(outbuf[j]),outnum-j);-
86 if (i == -1
i == -1Description
TRUEnever evaluated
FALSEnever evaluated
)		0
87 {-
88-
89 if (-
90 (*
(*__errno_location ()) == 4Description
TRUEnever evaluated
FALSEnever evaluated
__errno_location ())
(*__errno_location ()) == 4Description
TRUEnever evaluated
FALSEnever evaluated
0
91 ==
(*__errno_location ()) == 4Description
TRUEnever evaluated
FALSEnever evaluated
0
92 4
(*__errno_location ()) == 4Description
TRUEnever evaluated
FALSEnever evaluated
0
93 )-
94 i=0;
never executed: i=0;
0
95 else-
96-
97-
98-
99 return
never executed: return(-1);
(-1);
never executed: return(-1);
0
100 }-
101 }
never executed: end of block
0
102-
103 return
never executed: return(len);
(len);
never executed: return(len);
0
104 }-
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