add input check to readint_float()

ee32521f · Yukihiro Matsumoto · 472847ad · ee32521f
Commit ee32521f authored Jul 04, 2012 by Yukihiro Matsumoto
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src/codegen.c src/codegen.c +4 -0

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--- a/src/codegen.c
+++ b/src/codegen.c
@@ -802,6 +802,7 @@ readint_float(codegen_scope *s, const char *p, int base)
  mrb_float f = 0;
  int n;

+  if (*p == '+') p++;
  while (p < e) {
    char c = *p;
    c = tolower((unsigned char)c);
@@ -812,6 +813,9 @@ readint_float(codegen_scope *s, const char *p, int base)
 	break;
      }
    }
+    if (n == base) {
+      codegen_error(s, "malformed readint input");
+    }
    p++;
  }
  return f;