[ruby/fiddle] Initialize memory to 0 when calling Fiddle.malloc(). (ruby#24)

sinisterchipmunk · nobu · commit c15f3302bde8 · 2020-04-29T22:03:32.000+09:00
ruby/fiddle@8414239ca3
diff --git a/ext/fiddle/fiddle.c b/ext/fiddle/fiddle.c
@@ -47,8 +47,9 @@ static VALUE
 rb_fiddle_malloc(VALUE self, VALUE size)
 {
     void *ptr;
-
-    ptr = (void*)ruby_xmalloc(NUM2SIZET(size));
+    size_t sizet = NUM2SIZET(size);
+    ptr = (void*)ruby_xmalloc(sizet);
+    memset(ptr, 0, sizet);
     return PTR2NUM(ptr);
 }
 

Original file line number	Diff line number	Diff line change
`@@ -47,8 +47,9 @@ static VALUE`
`47`	`47`	`rb_fiddle_malloc(VALUE self, VALUE size)`
`48`	`48`	`{`
`49`	`49`	`void *ptr;`
`50`		`-`
`51`		`- ptr = (void*)ruby_xmalloc(NUM2SIZET(size));`
	`50`	`+ size_t sizet = NUM2SIZET(size);`
	`51`	`+ ptr = (void*)ruby_xmalloc(sizet);`
	`52`	`+ memset(ptr, 0, sizet);`
`52`	`53`	`return PTR2NUM(ptr);`
`53`	`54`	`}`
`54`	`55`