1 files changed, 5 insertions, 29 deletions
diff --git a/src/library.js b/src/library.js
index 59f2f6c6..b45ef8db 100644
--- a/src/library.js
+++ b/src/library.js
@@ -2133,20 +2133,7 @@ LibraryManager.library = {
   _exit: function(status) {
     // void _exit(int status);
     // http://pubs.opengroup.org/onlinepubs/000095399/functions/exit.html
-
-    function ExitStatus() {
-      this.name = "ExitStatus";
-      this.message = "Program terminated with exit(" + status + ")";
-      this.status = status;
-      Module.print('Exit Status: ' + status);
-    };
-    ExitStatus.prototype = new Error();
-    ExitStatus.prototype.constructor = ExitStatus;
-
-    exitRuntime();
-    ABORT = true;
-
-    throw new ExitStatus();
+    Module['exit'](status);
   },
   fork__deps: ['__setErrNo', '$ERRNO_CODES'],
   fork: function() {
@@ -3653,29 +3640,19 @@ LibraryManager.library = {
     ___setErrNo(ERRNO_CODES.EAGAIN);
     return -1;
   },
-  fscanf__deps: ['$FS', '__setErrNo', '$ERRNO_CODES',
-                 '_scanString', 'fgetc', 'fseek', 'ftell'],
+  fscanf__deps: ['$FS', '_scanString', 'fgetc', 'ungetc'],
   fscanf: function(stream, format, varargs) {
     // int fscanf(FILE *restrict stream, const char *restrict format, ... );
     // http://pubs.opengroup.org/onlinepubs/000095399/functions/scanf.html
     if (FS.streams[stream]) {
-      var i = _ftell(stream), SEEK_SET = 0;
-      // if the stream does not support seeking backwards (e.g. stdin), buffer it here
-      var buffer = [], bufferIndex = 0;
+      var buffer = [];
       var get = function() {
-        if (bufferIndex < buffer.length) {
-          return buffer[bufferIndex++];
-        }
-        i++;
-        bufferIndex++;
         var c = _fgetc(stream);
         buffer.push(c);
         return c;
       };
       var unget = function() {
-        if (_fseek(stream, --i, SEEK_SET) !== 0) {
-          bufferIndex--;
-        }
+        _ungetc(buffer.pop(), stream);
       };
       return __scanString(format, get, unget, varargs);
     } else {
@@ -3939,8 +3916,7 @@ LibraryManager.library = {
   __cxa_atexit: 'atexit',
 
   abort: function() {
-    ABORT = true;
-    throw 'abort() at ' + (new Error().stack);
+    Module['abort']();
   },
 
   bsearch: function(key, base, num, size, compar) {