OpenCoverage

recallocarray.c

Absolute File Name:/home/opencoverage/opencoverage/guest-scripts/libressl/src/crypto/compat/recallocarray.c
Source codeSwitch to Preprocessed file
LineSourceCount
1/* $OpenBSD: recallocarray.c,v 1.1 2017/03/06 18:44:21 otto Exp $ */-
2/*-
3 * Copyright (c) 2008, 2017 Otto Moerbeek <otto@drijf.net>-
4 *-
5 * Permission to use, copy, modify, and distribute this software for any-
6 * purpose with or without fee is hereby granted, provided that the above-
7 * copyright notice and this permission notice appear in all copies.-
8 *-
9 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES-
10 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF-
11 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR-
12 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES-
13 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN-
14 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF-
15 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.-
16 */-
17-
18#include <errno.h>-
19#include <stdlib.h>-
20#include <stdint.h>-
21#include <string.h>-
22#include <unistd.h>-
23-
24/*-
25 * This is sqrt(SIZE_MAX+1), as s1*s2 <= SIZE_MAX-
26 * if both s1 < MUL_NO_OVERFLOW and s2 < MUL_NO_OVERFLOW-
27 */-
28#define MUL_NO_OVERFLOW ((size_t)1 << (sizeof(size_t) * 4))-
29-
30void *-
31recallocarray(void *ptr, size_t oldnmemb, size_t newnmemb, size_t size)-
32{-
33 size_t oldsize, newsize;-
34 void *newptr;-
35-
36 if (ptr == NULL)
ptr == ((void *)0)Description
TRUEevaluated 1958 times by 10 tests
Evaluated by:
  • asn1test
  • base64test
  • clienttest
  • keypairtest
  • libcrypto.so.44.0.1
  • pkcs7test
  • servertest
  • ssltest
  • tlstest
  • verifytest
FALSEevaluated 1446 times by 9 tests
Evaluated by:
  • asn1test
  • bytestringtest
  • keypairtest
  • libcrypto.so.44.0.1
  • pkcs7test
  • servertest
  • ssltest
  • tlsexttest
  • tlstest
1446-1958
37 return calloc(newnmemb, size);
executed 1958 times by 10 tests: return calloc(newnmemb, size);
Executed by:
  • asn1test
  • base64test
  • clienttest
  • keypairtest
  • libcrypto.so.44.0.1
  • pkcs7test
  • servertest
  • ssltest
  • tlstest
  • verifytest
1958
38-
39 if ((newnmemb >= MUL_NO_OVERFLOW || size >= MUL_NO_OVERFLOW) &&
newnmemb >= ((...(size_t) * 4))Description
TRUEnever evaluated
FALSEevaluated 1446 times by 9 tests
Evaluated by:
  • asn1test
  • bytestringtest
  • keypairtest
  • libcrypto.so.44.0.1
  • pkcs7test
  • servertest
  • ssltest
  • tlsexttest
  • tlstest
size >= ((size...(size_t) * 4))Description
TRUEnever evaluated
FALSEevaluated 1446 times by 9 tests
Evaluated by:
  • asn1test
  • bytestringtest
  • keypairtest
  • libcrypto.so.44.0.1
  • pkcs7test
  • servertest
  • ssltest
  • tlsexttest
  • tlstest
0-1446
40 newnmemb > 0 && SIZE_MAX / newnmemb < size) {
newnmemb > 0Description
TRUEnever evaluated
FALSEnever evaluated
(1844674407370...ewnmemb < sizeDescription
TRUEnever evaluated
FALSEnever evaluated
0
41 errno = ENOMEM;-
42 return NULL;
never executed: return ((void *)0) ;
0
43 }-
44 newsize = newnmemb * size;-
45-
46 if ((oldnmemb >= MUL_NO_OVERFLOW || size >= MUL_NO_OVERFLOW) &&
oldnmemb >= ((...(size_t) * 4))Description
TRUEnever evaluated
FALSEevaluated 1446 times by 9 tests
Evaluated by:
  • asn1test
  • bytestringtest
  • keypairtest
  • libcrypto.so.44.0.1
  • pkcs7test
  • servertest
  • ssltest
  • tlsexttest
  • tlstest
size >= ((size...(size_t) * 4))Description
TRUEnever evaluated
FALSEevaluated 1446 times by 9 tests
Evaluated by:
  • asn1test
  • bytestringtest
  • keypairtest
  • libcrypto.so.44.0.1
  • pkcs7test
  • servertest
  • ssltest
  • tlsexttest
  • tlstest
0-1446
47 oldnmemb > 0 && SIZE_MAX / oldnmemb < size) {
oldnmemb > 0Description
TRUEnever evaluated
FALSEnever evaluated
(1844674407370...ldnmemb < sizeDescription
TRUEnever evaluated
FALSEnever evaluated
0
48 errno = EINVAL;-
49 return NULL;
never executed: return ((void *)0) ;
0
50 }-
51 oldsize = oldnmemb * size;-
52 -
53 /*-
54 * Don't bother too much if we're shrinking just a bit,-
55 * we do not shrink for series of small steps, oh well.-
56 */-
57 if (newsize <= oldsize) {
newsize <= oldsizeDescription
TRUEnever evaluated
FALSEevaluated 1446 times by 9 tests
Evaluated by:
  • asn1test
  • bytestringtest
  • keypairtest
  • libcrypto.so.44.0.1
  • pkcs7test
  • servertest
  • ssltest
  • tlsexttest
  • tlstest
0-1446
58 size_t d = oldsize - newsize;-
59-
60 if (d < oldsize / 2 && d < getpagesize()) {
d < oldsize / 2Description
TRUEnever evaluated
FALSEnever evaluated
d < getpagesize()Description
TRUEnever evaluated
FALSEnever evaluated
0
61 memset((char *)ptr + newsize, 0, d);-
62 return ptr;
never executed: return ptr;
0
63 }-
64 }
never executed: end of block
0
65-
66 newptr = malloc(newsize);-
67 if (newptr == NULL)
newptr == ((void *)0)Description
TRUEnever evaluated
FALSEevaluated 1446 times by 9 tests
Evaluated by:
  • asn1test
  • bytestringtest
  • keypairtest
  • libcrypto.so.44.0.1
  • pkcs7test
  • servertest
  • ssltest
  • tlsexttest
  • tlstest
0-1446
68 return NULL;
never executed: return ((void *)0) ;
0
69-
70 if (newsize > oldsize) {
newsize > oldsizeDescription
TRUEevaluated 1446 times by 9 tests
Evaluated by:
  • asn1test
  • bytestringtest
  • keypairtest
  • libcrypto.so.44.0.1
  • pkcs7test
  • servertest
  • ssltest
  • tlsexttest
  • tlstest
FALSEnever evaluated
0-1446
71 memcpy(newptr, ptr, oldsize);-
72 memset((char *)newptr + oldsize, 0, newsize - oldsize);-
73 } else
executed 1446 times by 9 tests: end of block
Executed by:
  • asn1test
  • bytestringtest
  • keypairtest
  • libcrypto.so.44.0.1
  • pkcs7test
  • servertest
  • ssltest
  • tlsexttest
  • tlstest
1446
74 memcpy(newptr, ptr, newsize);
never executed: memcpy(newptr, ptr, newsize);
0
75-
76 explicit_bzero(ptr, oldsize);-
77 free(ptr);-
78-
79 return newptr;
executed 1446 times by 9 tests: return newptr;
Executed by:
  • asn1test
  • bytestringtest
  • keypairtest
  • libcrypto.so.44.0.1
  • pkcs7test
  • servertest
  • ssltest
  • tlsexttest
  • tlstest
1446
80}-
Source codeSwitch to Preprocessed file
Generated by Squish Coco 4.2.2