Merge tag 'upstream/0.1.5' into debian

[libyaml.git] / src / scanner.c

diff --git a/src/scanner.c b/src/scanner.c
index f96a9f4b9acbbb70726c5e7b93a57f3a73030ab3..8817de242cbc489f021ba46e2795fff73cdabe73 100644 (file)
--- a/src/scanner.c
+++ b/src/scanner.c
@@ -615,11 +615,11 @@ yaml_parser_decrease_flow_level(yaml_parser_t *parser);
  */
 
 static int
-yaml_parser_roll_indent(yaml_parser_t *parser, int column,
-        int number, yaml_token_type_t type, yaml_mark_t mark);
+yaml_parser_roll_indent(yaml_parser_t *parser, ptrdiff_t column,
+        ptrdiff_t number, yaml_token_type_t type, yaml_mark_t mark);
 
 static int
-yaml_parser_unroll_indent(yaml_parser_t *parser, int column);
+yaml_parser_unroll_indent(yaml_parser_t *parser, ptrdiff_t column);
 
 /*
  * Token fetchers.
@@ -1103,7 +1103,7 @@ yaml_parser_save_simple_key(yaml_parser_t *parser)
      */
 
     int required = (!parser->flow_level
-            && parser->indent == (int)parser->mark.column);
+            && parser->indent == (ptrdiff_t)parser->mark.column);
 
     /*
      * A simple key is required only when it is the first token in the current
@@ -1118,9 +1118,11 @@ yaml_parser_save_simple_key(yaml_parser_t *parser)
 
     if (parser->simple_key_allowed)
     {
-        yaml_simple_key_t simple_key = { 1, required,
-            parser->tokens_parsed + parser->tokens.tail - parser->tokens.head,
-            { 0, 0, 0 } };
+        yaml_simple_key_t simple_key;
+        simple_key.possible = 1;
+        simple_key.required = required;
+        simple_key.token_number = 
+            parser->tokens_parsed + (parser->tokens.tail - parser->tokens.head);
         simple_key.mark = parser->mark;
 
         if (!yaml_parser_remove_simple_key(parser)) return 0;
@@ -1174,6 +1176,11 @@ yaml_parser_increase_flow_level(yaml_parser_t *parser)
 
     /* Increase the flow level. */
 
+    if (parser->flow_level == INT_MAX) {
+        parser->error = YAML_MEMORY_ERROR;
+        return 0;
+    }
+
     parser->flow_level++;
 
     return 1;
@@ -1204,8 +1211,8 @@ yaml_parser_decrease_flow_level(yaml_parser_t *parser)
  */
 
 static int
-yaml_parser_roll_indent(yaml_parser_t *parser, int column,
-        int number, yaml_token_type_t type, yaml_mark_t mark)
+yaml_parser_roll_indent(yaml_parser_t *parser, ptrdiff_t column,
+        ptrdiff_t number, yaml_token_type_t type, yaml_mark_t mark)
 {
     yaml_token_t token;
 
@@ -1224,6 +1231,11 @@ yaml_parser_roll_indent(yaml_parser_t *parser, int column,
         if (!PUSH(parser, parser->indents, parser->indent))
             return 0;
 
+        if (column > INT_MAX) {
+            parser->error = YAML_MEMORY_ERROR;
+            return 0;
+        }
+
         parser->indent = column;
 
         /* Create a token and insert it into the queue. */
@@ -1252,7 +1264,7 @@ yaml_parser_roll_indent(yaml_parser_t *parser, int column,
 
 
 static int
-yaml_parser_unroll_indent(yaml_parser_t *parser, int column)
+yaml_parser_unroll_indent(yaml_parser_t *parser, ptrdiff_t column)
 {
     yaml_token_t token;
 
@@ -2572,7 +2584,7 @@ yaml_parser_scan_tag_uri(yaml_parser_t *parser, int directive,
 
     /* Resize the string to include the head. */
 
-    while (string.end - string.start <= (int)length) {
+    while ((size_t)(string.end - string.start) <= length) {
         if (!yaml_string_extend(&string.start, &string.pointer, &string.end)) {
             parser->error = YAML_MEMORY_ERROR;
             goto error;