Prevent zero-byte allocations

James McLaughlin · James McLaughlin · commit 63be13a8b185 · 2014-06-30T17:24:21.000+01:00
diff --git a/json.c b/json.c
@@ -87,6 +87,9 @@ static void default_free (void * ptr, void * user_data)
 
 static void * json_alloc (json_state * state, unsigned long size, int zero)
 {
+   if (size == 0)
+       size = 1;
+
    if ((state->ulong_max - state->used_memory) < size)
       return 0;
 

Original file line number	Diff line number	Diff line change
`@@ -87,6 +87,9 @@ static void default_free (void * ptr, void * user_data)`
`87`	`87`
`88`	`88`	`static void * json_alloc (json_state * state, unsigned long size, int zero)`
`89`	`89`	`{`
	`90`	`+ if (size == 0)`
	`91`	`+ size = 1;`
	`92`	`+`
`90`	`93`	`if ((state->ulong_max - state->used_memory) < size)`
`91`	`94`	`return 0;`
`92`	`95`