Remove need for PTRDIFF_MAX

[libyaml.git] / src / reader.c

diff --git a/src/reader.c b/src/reader.c
index 829e32da55c0bee1baf572d72b574076a7ca52eb..f3ac54c2517dd06a0dffc81c4a93c30619dde631 100644 (file)
--- a/src/reader.c
+++ b/src/reader.c
@@ -52,7 +52,7 @@ yaml_parser_determine_encoding(yaml_parser_t *parser)
 {
     /* Ensure that we had enough bytes in the raw buffer. */
 
-    while (!parser->eof 
+    while (!parser->eof
             && parser->raw_buffer.last - parser->raw_buffer.pointer < 3) {
         if (!yaml_parser_update_raw_buffer(parser)) {
             return 0;
@@ -295,7 +295,7 @@ yaml_parser_update_buffer(yaml_parser_t *parser, size_t length)
                                 parser->offset, value);
 
                     break;
-                
+
                 case YAML_UTF16LE_ENCODING:
                 case YAML_UTF16BE_ENCODING:
 
@@ -318,7 +318,7 @@ yaml_parser_update_buffer(yaml_parser_t *parser, size_t length)
                      *
                      * The following formulas are used for decoding
                      * and encoding characters using surrogate pairs:
-                     * 
+                     *
                      *  U  = U' + 0x10000   (0x01 00 00 <= U <= 0x10 FF FF)
                      *  U' = yyyyyyyyyyxxxxxxxxxx   (0 <= U' <= 0x0F FF FF)
                      *  W1 = 110110yyyyyyyyyy
@@ -460,6 +460,10 @@ yaml_parser_update_buffer(yaml_parser_t *parser, size_t length)
 
     }
 
+    if (parser->offset >= MAX_FILE_SIZE) {
+        return yaml_parser_set_reader_error(parser, "input is too long",
+            parser->offset, -1);
+    }
+
     return 1;
 }
-