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authorDavid Kalnischkies <kalnischkies@gmail.com>2013-06-24 12:51:29 +0200
committerDavid Kalnischkies <kalnischkies@gmail.com>2013-06-24 14:07:49 +0200
commitf58a9890e345faa04b5fcb2a01cae39f986a42db (patch)
tree2fc06243335c8843b8bc87e989293651d04cba66 /apt-pkg
parent6420c00e30cd9512e045a5370bf391321691ca78 (diff)
fix SHA2* cleanups to zero-out the complete context
GCC 4.8 is now clever enough to warn about: contrib/sha2_internal.cc: In function ‘char* SHA256_End(SHA256_CTX*, char*)’: contrib/sha2_internal.cc:656:31: warning: argument to ‘sizeof’ in ‘void* memset(void*, int, size_t)’ call is the same expression as the destination; did you mean to dereference it? [-Wsizeof-pointer-memaccess] MEMSET_BZERO(context, sizeof(context)); So fix it as suggested. Its interesting though that the SHA2* calculation as far as we need it works even without zeroing out. Git-Dch: Ignore
Diffstat (limited to 'apt-pkg')
-rw-r--r--apt-pkg/contrib/sha2_internal.cc12
1 files changed, 6 insertions, 6 deletions
diff --git a/apt-pkg/contrib/sha2_internal.cc b/apt-pkg/contrib/sha2_internal.cc
index 83b5a98d3..f84fb761c 100644
--- a/apt-pkg/contrib/sha2_internal.cc
+++ b/apt-pkg/contrib/sha2_internal.cc
@@ -632,7 +632,7 @@ void SHA256_Final(sha2_byte digest[], SHA256_CTX* context) {
}
/* Clean up state data: */
- MEMSET_BZERO(context, sizeof(context));
+ MEMSET_BZERO(context, sizeof(*context));
usedspace = 0;
}
@@ -653,7 +653,7 @@ char *SHA256_End(SHA256_CTX* context, char buffer[]) {
}
*buffer = (char)0;
} else {
- MEMSET_BZERO(context, sizeof(context));
+ MEMSET_BZERO(context, sizeof(*context));
}
MEMSET_BZERO(digest, SHA256_DIGEST_LENGTH);
return buffer;
@@ -969,7 +969,7 @@ void SHA512_Final(sha2_byte digest[], SHA512_CTX* context) {
}
/* Zero out state data */
- MEMSET_BZERO(context, sizeof(context));
+ MEMSET_BZERO(context, sizeof(*context));
}
char *SHA512_End(SHA512_CTX* context, char buffer[]) {
@@ -989,7 +989,7 @@ char *SHA512_End(SHA512_CTX* context, char buffer[]) {
}
*buffer = (char)0;
} else {
- MEMSET_BZERO(context, sizeof(context));
+ MEMSET_BZERO(context, sizeof(*context));
}
MEMSET_BZERO(digest, SHA512_DIGEST_LENGTH);
return buffer;
@@ -1044,7 +1044,7 @@ void SHA384_Final(sha2_byte digest[], SHA384_CTX* context) {
}
/* Zero out state data */
- MEMSET_BZERO(context, sizeof(context));
+ MEMSET_BZERO(context, sizeof(*context));
}
char *SHA384_End(SHA384_CTX* context, char buffer[]) {
@@ -1064,7 +1064,7 @@ char *SHA384_End(SHA384_CTX* context, char buffer[]) {
}
*buffer = (char)0;
} else {
- MEMSET_BZERO(context, sizeof(context));
+ MEMSET_BZERO(context, sizeof(*context));
}
MEMSET_BZERO(digest, SHA384_DIGEST_LENGTH);
return buffer;