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talloc returns 0xdeadbeef when asked to allocate 0 bytes

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jerry
This commit is contained in:
Gerald Carter
-
parent 880e811616
commit df51dc32f6
1 changed files with 29 additions and 19 deletions
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10
source/lib/talloc.c
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@@ -56,6 +56,14 @@ void *talloc(TALLOC_CTX *t, size_t size)
{ {
void *p; void *p;
if (size == 0)
{
/* debugging value used to track down
memory problems */
p = (void*)0xdeadbeef;
}
else
{
size = (size + (TALLOC_ALIGN-1)) & ~(TALLOC_ALIGN-1); size = (size + (TALLOC_ALIGN-1)) & ~(TALLOC_ALIGN-1);
if (!t->list || (t->list->total_size - t->list->alloc_size) < size) { if (!t->list || (t->list->total_size - t->list->alloc_size) < size) {
@@ -77,6 +85,8 @@ void *talloc(TALLOC_CTX *t, size_t size)
p = ((char *)t->list->ptr) + t->list->alloc_size; p = ((char *)t->list->ptr) + t->list->alloc_size;
t->list->alloc_size += size; t->list->alloc_size += size;
}
return p; return p;
} }