OpenCoverage

bf_null.c

Absolute File Name:/home/opencoverage/opencoverage/guest-scripts/openssl/src/crypto/bio/bf_null.c
Source codeSwitch to Preprocessed file
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1/*-
2 * Copyright 1995-2018 The OpenSSL Project Authors. All Rights Reserved.-
3 *-
4 * Licensed under the OpenSSL license (the "License"). You may not use-
5 * this file except in compliance with the License. You can obtain a copy-
6 * in the file LICENSE in the source distribution or at-
7 * https://www.openssl.org/source/license.html-
8 */-
9-
10#include <stdio.h>-
11#include <errno.h>-
12#include "bio_lcl.h"-
13#include "internal/cryptlib.h"-
14-
15/*-
16 * BIO_put and BIO_get both add to the digest, BIO_gets returns the digest-
17 */-
18-
19static int nullf_write(BIO *h, const char *buf, int num);-
20static int nullf_read(BIO *h, char *buf, int size);-
21static int nullf_puts(BIO *h, const char *str);-
22static int nullf_gets(BIO *h, char *str, int size);-
23static long nullf_ctrl(BIO *h, int cmd, long arg1, void *arg2);-
24static long nullf_callback_ctrl(BIO *h, int cmd, BIO_info_cb *fp);-
25static const BIO_METHOD methods_nullf = {-
26 BIO_TYPE_NULL_FILTER,-
27 "NULL filter",-
28 /* TODO: Convert to new style write function */-
29 bwrite_conv,-
30 nullf_write,-
31 /* TODO: Convert to new style read function */-
32 bread_conv,-
33 nullf_read,-
34 nullf_puts,-
35 nullf_gets,-
36 nullf_ctrl,-
37 NULL,-
38 NULL,-
39 nullf_callback_ctrl,-
40};-
41-
42const BIO_METHOD *BIO_f_null(void)-
43{-
44 return &methods_nullf;
never executed: return &methods_nullf;
0
45}-
46-
47static int nullf_read(BIO *b, char *out, int outl)-
48{-
49 int ret = 0;-
50-
51 if (out == NULL)
out == ((void *)0)Description
TRUEnever evaluated
FALSEnever evaluated
0
52 return 0;
never executed: return 0;
0
53 if (b->next_bio == NULL)
b->next_bio == ((void *)0)Description
TRUEnever evaluated
FALSEnever evaluated
0
54 return 0;
never executed: return 0;
0
55 ret = BIO_read(b->next_bio, out, outl);-
56 BIO_clear_retry_flags(b);-
57 BIO_copy_next_retry(b);-
58 return ret;
never executed: return ret;
0
59}-
60-
61static int nullf_write(BIO *b, const char *in, int inl)-
62{-
63 int ret = 0;-
64-
65 if ((in == NULL) || (inl <= 0))
(in == ((void *)0) )Description
TRUEnever evaluated
FALSEnever evaluated
(inl <= 0)Description
TRUEnever evaluated
FALSEnever evaluated
0
66 return 0;
never executed: return 0;
0
67 if (b->next_bio == NULL)
b->next_bio == ((void *)0)Description
TRUEnever evaluated
FALSEnever evaluated
0
68 return 0;
never executed: return 0;
0
69 ret = BIO_write(b->next_bio, in, inl);-
70 BIO_clear_retry_flags(b);-
71 BIO_copy_next_retry(b);-
72 return ret;
never executed: return ret;
0
73}-
74-
75static long nullf_ctrl(BIO *b, int cmd, long num, void *ptr)-
76{-
77 long ret;-
78-
79 if (b->next_bio == NULL)
b->next_bio == ((void *)0)Description
TRUEnever evaluated
FALSEnever evaluated
0
80 return 0;
never executed: return 0;
0
81 switch (cmd) {-
82 case BIO_C_DO_STATE_MACHINE:
never executed: case 101:
0
83 BIO_clear_retry_flags(b);-
84 ret = BIO_ctrl(b->next_bio, cmd, num, ptr);-
85 BIO_copy_next_retry(b);-
86 break;
never executed: break;
0
87 case BIO_CTRL_DUP:
never executed: case 12:
0
88 ret = 0L;-
89 break;
never executed: break;
0
90 default:
never executed: default:
0
91 ret = BIO_ctrl(b->next_bio, cmd, num, ptr);-
92 }
never executed: end of block
0
93 return ret;
never executed: return ret;
0
94}-
95-
96static long nullf_callback_ctrl(BIO *b, int cmd, BIO_info_cb *fp)-
97{-
98 long ret = 1;-
99-
100 if (b->next_bio == NULL)
b->next_bio == ((void *)0)Description
TRUEnever evaluated
FALSEnever evaluated
0
101 return 0;
never executed: return 0;
0
102 switch (cmd) {-
103 default:
never executed: default:
0
104 ret = BIO_callback_ctrl(b->next_bio, cmd, fp);-
105 break;
never executed: break;
0
106 }-
107 return ret;
never executed: return ret;
0
108}-
109-
110static int nullf_gets(BIO *bp, char *buf, int size)-
111{-
112 if (bp->next_bio == NULL)
bp->next_bio == ((void *)0)Description
TRUEnever evaluated
FALSEnever evaluated
0
113 return 0;
never executed: return 0;
0
114 return BIO_gets(bp->next_bio, buf, size);
never executed: return BIO_gets(bp->next_bio, buf, size);
0
115}-
116-
117static int nullf_puts(BIO *bp, const char *str)-
118{-
119 if (bp->next_bio == NULL)
bp->next_bio == ((void *)0)Description
TRUEnever evaluated
FALSEnever evaluated
0
120 return 0;
never executed: return 0;
0
121 return BIO_puts(bp->next_bio, str);
never executed: return BIO_puts(bp->next_bio, str);
0
122}-
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