parse empty i64 strings properly

1 files changed, 4 insertions, 3 deletions

diff --git a/src/library.js b/src/library.js
index 30ad1128..f134e0e6 100644
--- a/src/library.js
+++ b/src/library.js
@@ -3841,7 +3841,6 @@ LibraryManager.library = {
   _parseInt64__deps: ['isspace', '__setErrNo', '$ERRNO_CODES', function() { Types.preciseI64MathUsed = 1 }],
   _parseInt64: function(str, endptr, base, min, max, unsign) {
     var start = str;
-
     // Skip space.
     while (_isspace({{{ makeGetValue('str', 0, 'i8') }}})) str++;
 
@@ -3880,6 +3879,10 @@ LibraryManager.library = {
         str++;
       }
     }
+    if (!ok) {
+      ___setErrNo(ERRNO_CODES.EINVAL);
+      return 0;
+    }
 
     try {
       i64Math.fromString(Pointer_stringify(start, str - start), finalBase, min, max, unsign);
@@ -3892,8 +3895,6 @@ LibraryManager.library = {
       {{{ makeSetValue('endptr', 0, 'str', '*') }}}
     }
 
-    // Unsign if needed. XXX
-
     ret = i64Math.result.slice(0);
 
     return ret;