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Merge pull request #4126 

8d578f1 memwipe: don't call the workhorse for 0 bytes (moneromooo-monero)
This commit is contained in:
luigi1111 2018-07-27 14:29:55 -05:00
parent ff01c3ade4 8d578f1f2d
commit 21b1fa1c35
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GPG Key ID: F4ACA0183641E010
1 changed files with 5 additions and 3 deletions
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8
contrib/epee/src/memwipe.c
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@ -50,7 +50,7 @@
void *memwipe(void *ptr, size_t n) void *memwipe(void *ptr, size_t n)
{ {
if (memset_s(ptr, n, 0, n)) if (n > 0 && memset_s(ptr, n, 0, n))
{ {
#ifdef NDEBUG #ifdef NDEBUG
fprintf(stderr, "Error: memset_s failed\n"); fprintf(stderr, "Error: memset_s failed\n");
@ -67,7 +67,8 @@ void *memwipe(void *ptr, size_t n)
void *memwipe(void *ptr, size_t n) void *memwipe(void *ptr, size_t n)
{ {
explicit_bzero(ptr, n); if (n > 0)
explicit_bzero(ptr, n);
SCARECROW SCARECROW
return ptr; return ptr;
} }
@ -105,7 +106,8 @@ static void memory_cleanse(void *ptr, size_t len)
void *memwipe(void *ptr, size_t n) void *memwipe(void *ptr, size_t n)
{ {
memory_cleanse(ptr, n); if (n > 0)
memory_cleanse(ptr, n);
SCARECROW SCARECROW
return ptr; return ptr;
} }