OpenCoverage

a_d2i_fp.c

Absolute File Name:/home/opencoverage/opencoverage/guest-scripts/openssl/src/crypto/asn1/a_d2i_fp.c
Source codeSwitch to Preprocessed file
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1/*-
2 * Copyright 1995-2016 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 <limits.h>-
12#include "internal/cryptlib.h"-
13#include "internal/numbers.h"-
14#include <openssl/buffer.h>-
15#include <openssl/asn1.h>-
16#include "internal/asn1_int.h"-
17-
18#ifndef NO_OLD_ASN1-
19# ifndef OPENSSL_NO_STDIO-
20-
21void *ASN1_d2i_fp(void *(*xnew) (void), d2i_of_void *d2i, FILE *in, void **x)-
22{-
23 BIO *b;-
24 void *ret;-
25-
26 if ((b = BIO_new(BIO_s_file())) == NULL) {
(b = BIO_new(B...== ((void *)0)Description
TRUEnever evaluated
FALSEnever evaluated
0
27 ASN1err(ASN1_F_ASN1_D2I_FP, ERR_R_BUF_LIB);-
28 return NULL;
never executed: return ((void *)0) ;
0
29 }-
30 BIO_set_fp(b, in, BIO_NOCLOSE);-
31 ret = ASN1_d2i_bio(xnew, d2i, b, x);-
32 BIO_free(b);-
33 return ret;
never executed: return ret;
0
34}-
35# endif-
36-
37void *ASN1_d2i_bio(void *(*xnew) (void), d2i_of_void *d2i, BIO *in, void **x)-
38{-
39 BUF_MEM *b = NULL;-
40 const unsigned char *p;-
41 void *ret = NULL;-
42 int len;-
43-
44 len = asn1_d2i_read_bio(in, &b);-
45 if (len < 0)
len < 0Description
TRUEnever evaluated
FALSEevaluated 83 times by 1 test
Evaluated by:
  • libcrypto.so.1.1
0-83
46 goto err;
never executed: goto err;
0
47-
48 p = (unsigned char *)b->data;-
49 ret = d2i(x, &p, len);-
50 err:
code before this statement executed 83 times by 1 test: err:
Executed by:
  • libcrypto.so.1.1
83
51 BUF_MEM_free(b);-
52 return ret;
executed 83 times by 1 test: return ret;
Executed by:
  • libcrypto.so.1.1
83
53}-
54-
55#endif-
56-
57void *ASN1_item_d2i_bio(const ASN1_ITEM *it, BIO *in, void *x)-
58{-
59 BUF_MEM *b = NULL;-
60 const unsigned char *p;-
61 void *ret = NULL;-
62 int len;-
63-
64 len = asn1_d2i_read_bio(in, &b);-
65 if (len < 0)
len < 0Description
TRUEevaluated 14 times by 1 test
Evaluated by:
  • libcrypto.so.1.1
FALSEevaluated 1457 times by 1 test
Evaluated by:
  • libcrypto.so.1.1
14-1457
66 goto err;
executed 14 times by 1 test: goto err;
Executed by:
  • libcrypto.so.1.1
14
67-
68 p = (const unsigned char *)b->data;-
69 ret = ASN1_item_d2i(x, &p, len, it);-
70 err:
code before this statement executed 1457 times by 1 test: err:
Executed by:
  • libcrypto.so.1.1
1457
71 BUF_MEM_free(b);-
72 return ret;
executed 1471 times by 1 test: return ret;
Executed by:
  • libcrypto.so.1.1
1471
73}-
74-
75#ifndef OPENSSL_NO_STDIO-
76void *ASN1_item_d2i_fp(const ASN1_ITEM *it, FILE *in, void *x)-
77{-
78 BIO *b;-
79 char *ret;-
80-
81 if ((b = BIO_new(BIO_s_file())) == NULL) {
(b = BIO_new(B...== ((void *)0)Description
TRUEnever evaluated
FALSEnever evaluated
0
82 ASN1err(ASN1_F_ASN1_ITEM_D2I_FP, ERR_R_BUF_LIB);-
83 return NULL;
never executed: return ((void *)0) ;
0
84 }-
85 BIO_set_fp(b, in, BIO_NOCLOSE);-
86 ret = ASN1_item_d2i_bio(it, b, x);-
87 BIO_free(b);-
88 return ret;
never executed: return ret;
0
89}-
90#endif-
91-
92#define HEADER_SIZE 8-
93#define ASN1_CHUNK_INITIAL_SIZE (16 * 1024)-
94int asn1_d2i_read_bio(BIO *in, BUF_MEM **pb)-
95{-
96 BUF_MEM *b;-
97 unsigned char *p;-
98 int i;-
99 size_t want = HEADER_SIZE;-
100 uint32_t eos = 0;-
101 size_t off = 0;-
102 size_t len = 0;-
103-
104 const unsigned char *q;-
105 long slen;-
106 int inf, tag, xclass;-
107-
108 b = BUF_MEM_new();-
109 if (b == NULL) {
b == ((void *)0)Description
TRUEnever evaluated
FALSEevaluated 1554 times by 1 test
Evaluated by:
  • libcrypto.so.1.1
0-1554
110 ASN1err(ASN1_F_ASN1_D2I_READ_BIO, ERR_R_MALLOC_FAILURE);-
111 return -1;
never executed: return -1;
0
112 }-
113-
114 ERR_clear_error();-
115 for (;;) {-
116 if (want >= (len - off)) {
want >= (len - off)Description
TRUEevaluated 543238 times by 1 test
Evaluated by:
  • libcrypto.so.1.1
FALSEnever evaluated
0-543238
117 want -= (len - off);-
118-
119 if (len + want < len || !BUF_MEM_grow_clean(b, len + want)) {
len + want < lenDescription
TRUEnever evaluated
FALSEevaluated 543238 times by 1 test
Evaluated by:
  • libcrypto.so.1.1
!BUF_MEM_grow_...b, len + want)Description
TRUEnever evaluated
FALSEevaluated 543238 times by 1 test
Evaluated by:
  • libcrypto.so.1.1
0-543238
120 ASN1err(ASN1_F_ASN1_D2I_READ_BIO, ERR_R_MALLOC_FAILURE);-
121 goto err;
never executed: goto err;
0
122 }-
123 i = BIO_read(in, &(b->data[len]), want);-
124 if ((i < 0) && ((len - off) == 0)) {
(i < 0)Description
TRUEevaluated 2555 times by 1 test
Evaluated by:
  • libcrypto.so.1.1
FALSEevaluated 540683 times by 1 test
Evaluated by:
  • libcrypto.so.1.1
((len - off) == 0)Description
TRUEevaluated 2 times by 1 test
Evaluated by:
  • libcrypto.so.1.1
FALSEevaluated 2553 times by 1 test
Evaluated by:
  • libcrypto.so.1.1
2-540683
125 ASN1err(ASN1_F_ASN1_D2I_READ_BIO, ASN1_R_NOT_ENOUGH_DATA);-
126 goto err;
executed 2 times by 1 test: goto err;
Executed by:
  • libcrypto.so.1.1
2
127 }-
128 if (i > 0) {
i > 0Description
TRUEevaluated 540588 times by 1 test
Evaluated by:
  • libcrypto.so.1.1
FALSEevaluated 2648 times by 1 test
Evaluated by:
  • libcrypto.so.1.1
2648-540588
129 if (len + i < len) {
len + i < lenDescription
TRUEnever evaluated
FALSEevaluated 540588 times by 1 test
Evaluated by:
  • libcrypto.so.1.1
0-540588
130 ASN1err(ASN1_F_ASN1_D2I_READ_BIO, ASN1_R_TOO_LONG);-
131 goto err;
never executed: goto err;
0
132 }-
133 len += i;-
134 }
executed 540588 times by 1 test: end of block
Executed by:
  • libcrypto.so.1.1
540588
135 }
executed 543236 times by 1 test: end of block
Executed by:
  • libcrypto.so.1.1
543236
136 /* else data already loaded */-
137-
138 p = (unsigned char *)&(b->data[off]);-
139 q = p;-
140 inf = ASN1_get_object(&q, &slen, &tag, &xclass, len - off);-
141 if (inf & 0x80) {
inf & 0x80Description
TRUEevaluated 34285 times by 1 test
Evaluated by:
  • libcrypto.so.1.1
FALSEevaluated 508951 times by 1 test
Evaluated by:
  • libcrypto.so.1.1
34285-508951
142 unsigned long e;-
143-
144 e = ERR_GET_REASON(ERR_peek_error());-
145 if (e != ASN1_R_TOO_LONG)
e != 155Description
TRUEevaluated 1 time by 1 test
Evaluated by:
  • libcrypto.so.1.1
FALSEevaluated 34284 times by 1 test
Evaluated by:
  • libcrypto.so.1.1
1-34284
146 goto err;
executed 1 time by 1 test: goto err;
Executed by:
  • libcrypto.so.1.1
1
147 else-
148 ERR_clear_error(); /* clear error */
executed 34284 times by 1 test: ERR_clear_error();
Executed by:
  • libcrypto.so.1.1
34284
149 }-
150 i = q - p; /* header length */-
151 off += i; /* end of data */-
152-
153 if (inf & 1) {
inf & 1Description
TRUEevaluated 159127 times by 1 test
Evaluated by:
  • libcrypto.so.1.1
FALSEevaluated 384108 times by 1 test
Evaluated by:
  • libcrypto.so.1.1
159127-384108
154 /* no data body so go round again */-
155 if (eos == UINT32_MAX) {
eos == (4294967295U)Description
TRUEnever evaluated
FALSEevaluated 159127 times by 1 test
Evaluated by:
  • libcrypto.so.1.1
0-159127
156 ASN1err(ASN1_F_ASN1_D2I_READ_BIO, ASN1_R_HEADER_TOO_LONG);-
157 goto err;
never executed: goto err;
0
158 }-
159 eos++;-
160 want = HEADER_SIZE;-
161 } else if (eos && (slen == 0) && (tag == V_ASN1_EOC)) {
executed 159127 times by 1 test: end of block
Executed by:
  • libcrypto.so.1.1
eosDescription
TRUEevaluated 383748 times by 1 test
Evaluated by:
  • libcrypto.so.1.1
FALSEevaluated 360 times by 1 test
Evaluated by:
  • libcrypto.so.1.1
(slen == 0)Description
TRUEevaluated 205335 times by 1 test
Evaluated by:
  • libcrypto.so.1.1
FALSEevaluated 178413 times by 1 test
Evaluated by:
  • libcrypto.so.1.1
(tag == 0)Description
TRUEevaluated 159110 times by 1 test
Evaluated by:
  • libcrypto.so.1.1
FALSEevaluated 46225 times by 1 test
Evaluated by:
  • libcrypto.so.1.1
360-383748
162 /* eos value, so go back and read another header */-
163 eos--;-
164 if (eos == 0)
eos == 0Description
TRUEevaluated 1186 times by 1 test
Evaluated by:
  • libcrypto.so.1.1
FALSEevaluated 157924 times by 1 test
Evaluated by:
  • libcrypto.so.1.1
1186-157924
165 break;
executed 1186 times by 1 test: break;
Executed by:
  • libcrypto.so.1.1
1186
166 else-
167 want = HEADER_SIZE;
executed 157924 times by 1 test: want = 8;
Executed by:
  • libcrypto.so.1.1
157924
168 } else {-
169 /* suck in slen bytes of data */-
170 want = slen;-
171 if (want > (len - off)) {
want > (len - off)Description
TRUEevaluated 34284 times by 1 test
Evaluated by:
  • libcrypto.so.1.1
FALSEevaluated 190714 times by 1 test
Evaluated by:
  • libcrypto.so.1.1
34284-190714
172 size_t chunk_max = ASN1_CHUNK_INITIAL_SIZE;-
173-
174 want -= (len - off);-
175 if (want > INT_MAX /* BIO_read takes an int length */ ||
want > 0x7fffffffDescription
TRUEevaluated 1 time by 1 test
Evaluated by:
  • libcrypto.so.1.1
FALSEevaluated 34283 times by 1 test
Evaluated by:
  • libcrypto.so.1.1
1-34283
176 len + want < len) {
len + want < lenDescription
TRUEnever evaluated
FALSEevaluated 34283 times by 1 test
Evaluated by:
  • libcrypto.so.1.1
0-34283
177 ASN1err(ASN1_F_ASN1_D2I_READ_BIO, ASN1_R_TOO_LONG);-
178 goto err;
executed 1 time by 1 test: goto err;
Executed by:
  • libcrypto.so.1.1
1
179 }-
180 while (want > 0) {
want > 0Description
TRUEevaluated 34289 times by 1 test
Evaluated by:
  • libcrypto.so.1.1
FALSEevaluated 34273 times by 1 test
Evaluated by:
  • libcrypto.so.1.1
34273-34289
181 /*-
182 * Read content in chunks of increasing size-
183 * so we can return an error for EOF without-
184 * having to allocate the entire content length-
185 * in one go.-
186 */-
187 size_t chunk = want > chunk_max ? chunk_max : want;
want > chunk_maxDescription
TRUEevaluated 11 times by 1 test
Evaluated by:
  • libcrypto.so.1.1
FALSEevaluated 34278 times by 1 test
Evaluated by:
  • libcrypto.so.1.1
11-34278
188-
189 if (!BUF_MEM_grow_clean(b, len + chunk)) {
!BUF_MEM_grow_..., len + chunk)Description
TRUEnever evaluated
FALSEevaluated 34289 times by 1 test
Evaluated by:
  • libcrypto.so.1.1
0-34289
190 ASN1err(ASN1_F_ASN1_D2I_READ_BIO, ERR_R_MALLOC_FAILURE);-
191 goto err;
never executed: goto err;
0
192 }-
193 want -= chunk;-
194 while (chunk > 0) {
chunk > 0Description
TRUEevaluated 34290 times by 1 test
Evaluated by:
  • libcrypto.so.1.1
FALSEevaluated 34279 times by 1 test
Evaluated by:
  • libcrypto.so.1.1
34279-34290
195 i = BIO_read(in, &(b->data[len]), chunk);-
196 if (i <= 0) {
i <= 0Description
TRUEevaluated 10 times by 1 test
Evaluated by:
  • libcrypto.so.1.1
FALSEevaluated 34280 times by 1 test
Evaluated by:
  • libcrypto.so.1.1
10-34280
197 ASN1err(ASN1_F_ASN1_D2I_READ_BIO,-
198 ASN1_R_NOT_ENOUGH_DATA);-
199 goto err;
executed 10 times by 1 test: goto err;
Executed by:
  • libcrypto.so.1.1
10
200 }-
201 /*-
202 * This can't overflow because |len+want| didn't-
203 * overflow.-
204 */-
205 len += i;-
206 chunk -= i;-
207 }
executed 34280 times by 1 test: end of block
Executed by:
  • libcrypto.so.1.1
34280
208 if (chunk_max < INT_MAX/2)
chunk_max < 0x7fffffff/2Description
TRUEevaluated 34279 times by 1 test
Evaluated by:
  • libcrypto.so.1.1
FALSEnever evaluated
0-34279
209 chunk_max *= 2;
executed 34279 times by 1 test: chunk_max *= 2;
Executed by:
  • libcrypto.so.1.1
34279
210 }
executed 34279 times by 1 test: end of block
Executed by:
  • libcrypto.so.1.1
34279
211 }
executed 34273 times by 1 test: end of block
Executed by:
  • libcrypto.so.1.1
34273
212 if (off + slen < off) {
off + slen < offDescription
TRUEnever evaluated
FALSEevaluated 224987 times by 1 test
Evaluated by:
  • libcrypto.so.1.1
0-224987
213 ASN1err(ASN1_F_ASN1_D2I_READ_BIO, ASN1_R_TOO_LONG);-
214 goto err;
never executed: goto err;
0
215 }-
216 off += slen;-
217 if (eos == 0) {
eos == 0Description
TRUEevaluated 354 times by 1 test
Evaluated by:
  • libcrypto.so.1.1
FALSEevaluated 224633 times by 1 test
Evaluated by:
  • libcrypto.so.1.1
354-224633
218 break;
executed 354 times by 1 test: break;
Executed by:
  • libcrypto.so.1.1
354
219 } else-
220 want = HEADER_SIZE;
executed 224633 times by 1 test: want = 8;
Executed by:
  • libcrypto.so.1.1
224633
221 }-
222 }-
223-
224 if (off > INT_MAX) {
off > 0x7fffffffDescription
TRUEnever evaluated
FALSEevaluated 1540 times by 1 test
Evaluated by:
  • libcrypto.so.1.1
0-1540
225 ASN1err(ASN1_F_ASN1_D2I_READ_BIO, ASN1_R_TOO_LONG);-
226 goto err;
never executed: goto err;
0
227 }-
228-
229 *pb = b;-
230 return off;
executed 1540 times by 1 test: return off;
Executed by:
  • libcrypto.so.1.1
1540
231 err:-
232 BUF_MEM_free(b);-
233 return -1;
executed 14 times by 1 test: return -1;
Executed by:
  • libcrypto.so.1.1
14
234}-
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