mirror of
https://github.com/ossrs/srs.git
synced 2025-02-15 04:42:04 +00:00
73dd8af4c9
For the DJI M30, there is a bug where empty NALU packets with a size of zero are causing issues with HLS streaming. This bug leads to random unpublish events due to the SRS disconnecting the connection for the HLS module when it fails to handle empty NALU packets. To address this bug, we have patched the system to ignore any empty NALU packets with a size of zero. Additionally, we have created a tool in the srs-bench to replay pcapng files captured by tcpdump or Wireshark. We have also added utest using mprotect and asan to detect any memory corruption. It is important to note that this bug has been fixed in versions 4.0.2716477f31004and 5.0.170939f6b484b. This patch specifically addresses the issue in SRS 6.0. Please be aware that there is another commit related to this bug that partially fixes the issue but still leaves a small problem for asan to detect memory corruption. This commit,577cd299e1, only ignores empty NALU packets but still reads beyond the memory. --------- Co-authored-by: chundonglinlin <chundonglinlin@163.com>
747 lines
22 KiB
Go
747 lines
22 KiB
Go
//
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// Copyright (c) 2011-2019 Canonical Ltd
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// Copyright (c) 2006-2010 Kirill Simonov
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//
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// Permission is hereby granted, free of charge, to any person obtaining a copy of
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// this software and associated documentation files (the "Software"), to deal in
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// the Software without restriction, including without limitation the rights to
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// use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies
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// of the Software, and to permit persons to whom the Software is furnished to do
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// so, subject to the following conditions:
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//
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// The above copyright notice and this permission notice shall be included in all
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// copies or substantial portions of the Software.
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//
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// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
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// SOFTWARE.
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package yaml
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import (
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"io"
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)
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func yaml_insert_token(parser *yaml_parser_t, pos int, token *yaml_token_t) {
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//fmt.Println("yaml_insert_token", "pos:", pos, "typ:", token.typ, "head:", parser.tokens_head, "len:", len(parser.tokens))
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// Check if we can move the queue at the beginning of the buffer.
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if parser.tokens_head > 0 && len(parser.tokens) == cap(parser.tokens) {
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if parser.tokens_head != len(parser.tokens) {
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copy(parser.tokens, parser.tokens[parser.tokens_head:])
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}
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parser.tokens = parser.tokens[:len(parser.tokens)-parser.tokens_head]
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parser.tokens_head = 0
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}
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parser.tokens = append(parser.tokens, *token)
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if pos < 0 {
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return
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}
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copy(parser.tokens[parser.tokens_head+pos+1:], parser.tokens[parser.tokens_head+pos:])
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parser.tokens[parser.tokens_head+pos] = *token
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}
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// Create a new parser object.
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func yaml_parser_initialize(parser *yaml_parser_t) bool {
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*parser = yaml_parser_t{
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raw_buffer: make([]byte, 0, input_raw_buffer_size),
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buffer: make([]byte, 0, input_buffer_size),
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}
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return true
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}
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// Destroy a parser object.
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func yaml_parser_delete(parser *yaml_parser_t) {
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*parser = yaml_parser_t{}
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}
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// String read handler.
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func yaml_string_read_handler(parser *yaml_parser_t, buffer []byte) (n int, err error) {
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if parser.input_pos == len(parser.input) {
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return 0, io.EOF
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}
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n = copy(buffer, parser.input[parser.input_pos:])
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parser.input_pos += n
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return n, nil
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}
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// Reader read handler.
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func yaml_reader_read_handler(parser *yaml_parser_t, buffer []byte) (n int, err error) {
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return parser.input_reader.Read(buffer)
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}
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// Set a string input.
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func yaml_parser_set_input_string(parser *yaml_parser_t, input []byte) {
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if parser.read_handler != nil {
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panic("must set the input source only once")
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}
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parser.read_handler = yaml_string_read_handler
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parser.input = input
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parser.input_pos = 0
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}
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// Set a file input.
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func yaml_parser_set_input_reader(parser *yaml_parser_t, r io.Reader) {
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if parser.read_handler != nil {
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panic("must set the input source only once")
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}
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parser.read_handler = yaml_reader_read_handler
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parser.input_reader = r
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}
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// Set the source encoding.
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func yaml_parser_set_encoding(parser *yaml_parser_t, encoding yaml_encoding_t) {
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if parser.encoding != yaml_ANY_ENCODING {
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panic("must set the encoding only once")
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}
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parser.encoding = encoding
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}
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// Create a new emitter object.
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func yaml_emitter_initialize(emitter *yaml_emitter_t) {
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*emitter = yaml_emitter_t{
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buffer: make([]byte, output_buffer_size),
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raw_buffer: make([]byte, 0, output_raw_buffer_size),
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states: make([]yaml_emitter_state_t, 0, initial_stack_size),
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events: make([]yaml_event_t, 0, initial_queue_size),
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best_width: -1,
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}
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}
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// Destroy an emitter object.
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func yaml_emitter_delete(emitter *yaml_emitter_t) {
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*emitter = yaml_emitter_t{}
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}
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// String write handler.
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func yaml_string_write_handler(emitter *yaml_emitter_t, buffer []byte) error {
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*emitter.output_buffer = append(*emitter.output_buffer, buffer...)
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return nil
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}
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// yaml_writer_write_handler uses emitter.output_writer to write the
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// emitted text.
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func yaml_writer_write_handler(emitter *yaml_emitter_t, buffer []byte) error {
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_, err := emitter.output_writer.Write(buffer)
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return err
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}
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// Set a string output.
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func yaml_emitter_set_output_string(emitter *yaml_emitter_t, output_buffer *[]byte) {
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if emitter.write_handler != nil {
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panic("must set the output target only once")
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}
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emitter.write_handler = yaml_string_write_handler
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emitter.output_buffer = output_buffer
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}
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// Set a file output.
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func yaml_emitter_set_output_writer(emitter *yaml_emitter_t, w io.Writer) {
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if emitter.write_handler != nil {
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panic("must set the output target only once")
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}
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emitter.write_handler = yaml_writer_write_handler
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emitter.output_writer = w
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}
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// Set the output encoding.
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func yaml_emitter_set_encoding(emitter *yaml_emitter_t, encoding yaml_encoding_t) {
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if emitter.encoding != yaml_ANY_ENCODING {
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panic("must set the output encoding only once")
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}
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emitter.encoding = encoding
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}
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// Set the canonical output style.
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func yaml_emitter_set_canonical(emitter *yaml_emitter_t, canonical bool) {
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emitter.canonical = canonical
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}
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// Set the indentation increment.
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func yaml_emitter_set_indent(emitter *yaml_emitter_t, indent int) {
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if indent < 2 || indent > 9 {
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indent = 2
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}
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emitter.best_indent = indent
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}
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// Set the preferred line width.
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func yaml_emitter_set_width(emitter *yaml_emitter_t, width int) {
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if width < 0 {
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width = -1
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}
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emitter.best_width = width
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}
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// Set if unescaped non-ASCII characters are allowed.
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func yaml_emitter_set_unicode(emitter *yaml_emitter_t, unicode bool) {
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emitter.unicode = unicode
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}
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// Set the preferred line break character.
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func yaml_emitter_set_break(emitter *yaml_emitter_t, line_break yaml_break_t) {
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emitter.line_break = line_break
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}
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///*
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// * Destroy a token object.
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// */
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//
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//YAML_DECLARE(void)
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//yaml_token_delete(yaml_token_t *token)
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//{
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// assert(token); // Non-NULL token object expected.
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//
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// switch (token.type)
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// {
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// case YAML_TAG_DIRECTIVE_TOKEN:
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// yaml_free(token.data.tag_directive.handle);
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// yaml_free(token.data.tag_directive.prefix);
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// break;
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//
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// case YAML_ALIAS_TOKEN:
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// yaml_free(token.data.alias.value);
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// break;
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//
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// case YAML_ANCHOR_TOKEN:
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// yaml_free(token.data.anchor.value);
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// break;
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//
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// case YAML_TAG_TOKEN:
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// yaml_free(token.data.tag.handle);
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// yaml_free(token.data.tag.suffix);
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// break;
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//
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// case YAML_SCALAR_TOKEN:
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// yaml_free(token.data.scalar.value);
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// break;
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//
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// default:
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// break;
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// }
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//
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// memset(token, 0, sizeof(yaml_token_t));
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//}
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//
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///*
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// * Check if a string is a valid UTF-8 sequence.
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// *
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// * Check 'reader.c' for more details on UTF-8 encoding.
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// */
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//
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//static int
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//yaml_check_utf8(yaml_char_t *start, size_t length)
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//{
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// yaml_char_t *end = start+length;
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// yaml_char_t *pointer = start;
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//
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// while (pointer < end) {
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// unsigned char octet;
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// unsigned int width;
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// unsigned int value;
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// size_t k;
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//
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// octet = pointer[0];
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// width = (octet & 0x80) == 0x00 ? 1 :
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// (octet & 0xE0) == 0xC0 ? 2 :
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// (octet & 0xF0) == 0xE0 ? 3 :
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// (octet & 0xF8) == 0xF0 ? 4 : 0;
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// value = (octet & 0x80) == 0x00 ? octet & 0x7F :
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// (octet & 0xE0) == 0xC0 ? octet & 0x1F :
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// (octet & 0xF0) == 0xE0 ? octet & 0x0F :
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// (octet & 0xF8) == 0xF0 ? octet & 0x07 : 0;
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// if (!width) return 0;
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// if (pointer+width > end) return 0;
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// for (k = 1; k < width; k ++) {
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// octet = pointer[k];
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// if ((octet & 0xC0) != 0x80) return 0;
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// value = (value << 6) + (octet & 0x3F);
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// }
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// if (!((width == 1) ||
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// (width == 2 && value >= 0x80) ||
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// (width == 3 && value >= 0x800) ||
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// (width == 4 && value >= 0x10000))) return 0;
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//
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// pointer += width;
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// }
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//
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// return 1;
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//}
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//
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// Create STREAM-START.
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func yaml_stream_start_event_initialize(event *yaml_event_t, encoding yaml_encoding_t) {
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*event = yaml_event_t{
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typ: yaml_STREAM_START_EVENT,
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encoding: encoding,
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}
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}
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// Create STREAM-END.
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func yaml_stream_end_event_initialize(event *yaml_event_t) {
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*event = yaml_event_t{
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typ: yaml_STREAM_END_EVENT,
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}
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}
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// Create DOCUMENT-START.
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func yaml_document_start_event_initialize(
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event *yaml_event_t,
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version_directive *yaml_version_directive_t,
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tag_directives []yaml_tag_directive_t,
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implicit bool,
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) {
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*event = yaml_event_t{
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typ: yaml_DOCUMENT_START_EVENT,
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version_directive: version_directive,
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tag_directives: tag_directives,
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implicit: implicit,
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}
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}
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// Create DOCUMENT-END.
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func yaml_document_end_event_initialize(event *yaml_event_t, implicit bool) {
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*event = yaml_event_t{
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typ: yaml_DOCUMENT_END_EVENT,
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implicit: implicit,
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}
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}
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// Create ALIAS.
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func yaml_alias_event_initialize(event *yaml_event_t, anchor []byte) bool {
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*event = yaml_event_t{
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typ: yaml_ALIAS_EVENT,
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anchor: anchor,
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}
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return true
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}
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// Create SCALAR.
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func yaml_scalar_event_initialize(event *yaml_event_t, anchor, tag, value []byte, plain_implicit, quoted_implicit bool, style yaml_scalar_style_t) bool {
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*event = yaml_event_t{
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typ: yaml_SCALAR_EVENT,
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anchor: anchor,
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tag: tag,
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value: value,
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implicit: plain_implicit,
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quoted_implicit: quoted_implicit,
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style: yaml_style_t(style),
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}
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return true
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}
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// Create SEQUENCE-START.
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func yaml_sequence_start_event_initialize(event *yaml_event_t, anchor, tag []byte, implicit bool, style yaml_sequence_style_t) bool {
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*event = yaml_event_t{
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typ: yaml_SEQUENCE_START_EVENT,
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anchor: anchor,
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tag: tag,
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implicit: implicit,
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style: yaml_style_t(style),
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}
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return true
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}
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// Create SEQUENCE-END.
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func yaml_sequence_end_event_initialize(event *yaml_event_t) bool {
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*event = yaml_event_t{
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typ: yaml_SEQUENCE_END_EVENT,
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}
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return true
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}
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// Create MAPPING-START.
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func yaml_mapping_start_event_initialize(event *yaml_event_t, anchor, tag []byte, implicit bool, style yaml_mapping_style_t) {
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*event = yaml_event_t{
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typ: yaml_MAPPING_START_EVENT,
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anchor: anchor,
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tag: tag,
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implicit: implicit,
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style: yaml_style_t(style),
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}
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}
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// Create MAPPING-END.
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func yaml_mapping_end_event_initialize(event *yaml_event_t) {
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*event = yaml_event_t{
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typ: yaml_MAPPING_END_EVENT,
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}
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}
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// Destroy an event object.
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func yaml_event_delete(event *yaml_event_t) {
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*event = yaml_event_t{}
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}
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///*
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// * Create a document object.
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// */
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//
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//YAML_DECLARE(int)
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//yaml_document_initialize(document *yaml_document_t,
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// version_directive *yaml_version_directive_t,
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// tag_directives_start *yaml_tag_directive_t,
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// tag_directives_end *yaml_tag_directive_t,
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// start_implicit int, end_implicit int)
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//{
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// struct {
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// error yaml_error_type_t
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// } context
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// struct {
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// start *yaml_node_t
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// end *yaml_node_t
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// top *yaml_node_t
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// } nodes = { NULL, NULL, NULL }
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// version_directive_copy *yaml_version_directive_t = NULL
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// struct {
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// start *yaml_tag_directive_t
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// end *yaml_tag_directive_t
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// top *yaml_tag_directive_t
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// } tag_directives_copy = { NULL, NULL, NULL }
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// value yaml_tag_directive_t = { NULL, NULL }
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// mark yaml_mark_t = { 0, 0, 0 }
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//
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// assert(document) // Non-NULL document object is expected.
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// assert((tag_directives_start && tag_directives_end) ||
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// (tag_directives_start == tag_directives_end))
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// // Valid tag directives are expected.
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//
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// if (!STACK_INIT(&context, nodes, INITIAL_STACK_SIZE)) goto error
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//
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// if (version_directive) {
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// version_directive_copy = yaml_malloc(sizeof(yaml_version_directive_t))
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// if (!version_directive_copy) goto error
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|
// version_directive_copy.major = version_directive.major
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// version_directive_copy.minor = version_directive.minor
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// }
|
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//
|
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// if (tag_directives_start != tag_directives_end) {
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// tag_directive *yaml_tag_directive_t
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// if (!STACK_INIT(&context, tag_directives_copy, INITIAL_STACK_SIZE))
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// goto error
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// for (tag_directive = tag_directives_start
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// tag_directive != tag_directives_end; tag_directive ++) {
|
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// assert(tag_directive.handle)
|
|
// assert(tag_directive.prefix)
|
|
// if (!yaml_check_utf8(tag_directive.handle,
|
|
// strlen((char *)tag_directive.handle)))
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// goto error
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// if (!yaml_check_utf8(tag_directive.prefix,
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// strlen((char *)tag_directive.prefix)))
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// goto error
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|
// value.handle = yaml_strdup(tag_directive.handle)
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// value.prefix = yaml_strdup(tag_directive.prefix)
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// if (!value.handle || !value.prefix) goto error
|
|
// if (!PUSH(&context, tag_directives_copy, value))
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// goto error
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// value.handle = NULL
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|
// value.prefix = NULL
|
|
// }
|
|
// }
|
|
//
|
|
// DOCUMENT_INIT(*document, nodes.start, nodes.end, version_directive_copy,
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// tag_directives_copy.start, tag_directives_copy.top,
|
|
// start_implicit, end_implicit, mark, mark)
|
|
//
|
|
// return 1
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|
//
|
|
//error:
|
|
// STACK_DEL(&context, nodes)
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|
// yaml_free(version_directive_copy)
|
|
// while (!STACK_EMPTY(&context, tag_directives_copy)) {
|
|
// value yaml_tag_directive_t = POP(&context, tag_directives_copy)
|
|
// yaml_free(value.handle)
|
|
// yaml_free(value.prefix)
|
|
// }
|
|
// STACK_DEL(&context, tag_directives_copy)
|
|
// yaml_free(value.handle)
|
|
// yaml_free(value.prefix)
|
|
//
|
|
// return 0
|
|
//}
|
|
//
|
|
///*
|
|
// * Destroy a document object.
|
|
// */
|
|
//
|
|
//YAML_DECLARE(void)
|
|
//yaml_document_delete(document *yaml_document_t)
|
|
//{
|
|
// struct {
|
|
// error yaml_error_type_t
|
|
// } context
|
|
// tag_directive *yaml_tag_directive_t
|
|
//
|
|
// context.error = YAML_NO_ERROR // Eliminate a compiler warning.
|
|
//
|
|
// assert(document) // Non-NULL document object is expected.
|
|
//
|
|
// while (!STACK_EMPTY(&context, document.nodes)) {
|
|
// node yaml_node_t = POP(&context, document.nodes)
|
|
// yaml_free(node.tag)
|
|
// switch (node.type) {
|
|
// case YAML_SCALAR_NODE:
|
|
// yaml_free(node.data.scalar.value)
|
|
// break
|
|
// case YAML_SEQUENCE_NODE:
|
|
// STACK_DEL(&context, node.data.sequence.items)
|
|
// break
|
|
// case YAML_MAPPING_NODE:
|
|
// STACK_DEL(&context, node.data.mapping.pairs)
|
|
// break
|
|
// default:
|
|
// assert(0) // Should not happen.
|
|
// }
|
|
// }
|
|
// STACK_DEL(&context, document.nodes)
|
|
//
|
|
// yaml_free(document.version_directive)
|
|
// for (tag_directive = document.tag_directives.start
|
|
// tag_directive != document.tag_directives.end
|
|
// tag_directive++) {
|
|
// yaml_free(tag_directive.handle)
|
|
// yaml_free(tag_directive.prefix)
|
|
// }
|
|
// yaml_free(document.tag_directives.start)
|
|
//
|
|
// memset(document, 0, sizeof(yaml_document_t))
|
|
//}
|
|
//
|
|
///**
|
|
// * Get a document node.
|
|
// */
|
|
//
|
|
//YAML_DECLARE(yaml_node_t *)
|
|
//yaml_document_get_node(document *yaml_document_t, index int)
|
|
//{
|
|
// assert(document) // Non-NULL document object is expected.
|
|
//
|
|
// if (index > 0 && document.nodes.start + index <= document.nodes.top) {
|
|
// return document.nodes.start + index - 1
|
|
// }
|
|
// return NULL
|
|
//}
|
|
//
|
|
///**
|
|
// * Get the root object.
|
|
// */
|
|
//
|
|
//YAML_DECLARE(yaml_node_t *)
|
|
//yaml_document_get_root_node(document *yaml_document_t)
|
|
//{
|
|
// assert(document) // Non-NULL document object is expected.
|
|
//
|
|
// if (document.nodes.top != document.nodes.start) {
|
|
// return document.nodes.start
|
|
// }
|
|
// return NULL
|
|
//}
|
|
//
|
|
///*
|
|
// * Add a scalar node to a document.
|
|
// */
|
|
//
|
|
//YAML_DECLARE(int)
|
|
//yaml_document_add_scalar(document *yaml_document_t,
|
|
// tag *yaml_char_t, value *yaml_char_t, length int,
|
|
// style yaml_scalar_style_t)
|
|
//{
|
|
// struct {
|
|
// error yaml_error_type_t
|
|
// } context
|
|
// mark yaml_mark_t = { 0, 0, 0 }
|
|
// tag_copy *yaml_char_t = NULL
|
|
// value_copy *yaml_char_t = NULL
|
|
// node yaml_node_t
|
|
//
|
|
// assert(document) // Non-NULL document object is expected.
|
|
// assert(value) // Non-NULL value is expected.
|
|
//
|
|
// if (!tag) {
|
|
// tag = (yaml_char_t *)YAML_DEFAULT_SCALAR_TAG
|
|
// }
|
|
//
|
|
// if (!yaml_check_utf8(tag, strlen((char *)tag))) goto error
|
|
// tag_copy = yaml_strdup(tag)
|
|
// if (!tag_copy) goto error
|
|
//
|
|
// if (length < 0) {
|
|
// length = strlen((char *)value)
|
|
// }
|
|
//
|
|
// if (!yaml_check_utf8(value, length)) goto error
|
|
// value_copy = yaml_malloc(length+1)
|
|
// if (!value_copy) goto error
|
|
// memcpy(value_copy, value, length)
|
|
// value_copy[length] = '\0'
|
|
//
|
|
// SCALAR_NODE_INIT(node, tag_copy, value_copy, length, style, mark, mark)
|
|
// if (!PUSH(&context, document.nodes, node)) goto error
|
|
//
|
|
// return document.nodes.top - document.nodes.start
|
|
//
|
|
//error:
|
|
// yaml_free(tag_copy)
|
|
// yaml_free(value_copy)
|
|
//
|
|
// return 0
|
|
//}
|
|
//
|
|
///*
|
|
// * Add a sequence node to a document.
|
|
// */
|
|
//
|
|
//YAML_DECLARE(int)
|
|
//yaml_document_add_sequence(document *yaml_document_t,
|
|
// tag *yaml_char_t, style yaml_sequence_style_t)
|
|
//{
|
|
// struct {
|
|
// error yaml_error_type_t
|
|
// } context
|
|
// mark yaml_mark_t = { 0, 0, 0 }
|
|
// tag_copy *yaml_char_t = NULL
|
|
// struct {
|
|
// start *yaml_node_item_t
|
|
// end *yaml_node_item_t
|
|
// top *yaml_node_item_t
|
|
// } items = { NULL, NULL, NULL }
|
|
// node yaml_node_t
|
|
//
|
|
// assert(document) // Non-NULL document object is expected.
|
|
//
|
|
// if (!tag) {
|
|
// tag = (yaml_char_t *)YAML_DEFAULT_SEQUENCE_TAG
|
|
// }
|
|
//
|
|
// if (!yaml_check_utf8(tag, strlen((char *)tag))) goto error
|
|
// tag_copy = yaml_strdup(tag)
|
|
// if (!tag_copy) goto error
|
|
//
|
|
// if (!STACK_INIT(&context, items, INITIAL_STACK_SIZE)) goto error
|
|
//
|
|
// SEQUENCE_NODE_INIT(node, tag_copy, items.start, items.end,
|
|
// style, mark, mark)
|
|
// if (!PUSH(&context, document.nodes, node)) goto error
|
|
//
|
|
// return document.nodes.top - document.nodes.start
|
|
//
|
|
//error:
|
|
// STACK_DEL(&context, items)
|
|
// yaml_free(tag_copy)
|
|
//
|
|
// return 0
|
|
//}
|
|
//
|
|
///*
|
|
// * Add a mapping node to a document.
|
|
// */
|
|
//
|
|
//YAML_DECLARE(int)
|
|
//yaml_document_add_mapping(document *yaml_document_t,
|
|
// tag *yaml_char_t, style yaml_mapping_style_t)
|
|
//{
|
|
// struct {
|
|
// error yaml_error_type_t
|
|
// } context
|
|
// mark yaml_mark_t = { 0, 0, 0 }
|
|
// tag_copy *yaml_char_t = NULL
|
|
// struct {
|
|
// start *yaml_node_pair_t
|
|
// end *yaml_node_pair_t
|
|
// top *yaml_node_pair_t
|
|
// } pairs = { NULL, NULL, NULL }
|
|
// node yaml_node_t
|
|
//
|
|
// assert(document) // Non-NULL document object is expected.
|
|
//
|
|
// if (!tag) {
|
|
// tag = (yaml_char_t *)YAML_DEFAULT_MAPPING_TAG
|
|
// }
|
|
//
|
|
// if (!yaml_check_utf8(tag, strlen((char *)tag))) goto error
|
|
// tag_copy = yaml_strdup(tag)
|
|
// if (!tag_copy) goto error
|
|
//
|
|
// if (!STACK_INIT(&context, pairs, INITIAL_STACK_SIZE)) goto error
|
|
//
|
|
// MAPPING_NODE_INIT(node, tag_copy, pairs.start, pairs.end,
|
|
// style, mark, mark)
|
|
// if (!PUSH(&context, document.nodes, node)) goto error
|
|
//
|
|
// return document.nodes.top - document.nodes.start
|
|
//
|
|
//error:
|
|
// STACK_DEL(&context, pairs)
|
|
// yaml_free(tag_copy)
|
|
//
|
|
// return 0
|
|
//}
|
|
//
|
|
///*
|
|
// * Append an item to a sequence node.
|
|
// */
|
|
//
|
|
//YAML_DECLARE(int)
|
|
//yaml_document_append_sequence_item(document *yaml_document_t,
|
|
// sequence int, item int)
|
|
//{
|
|
// struct {
|
|
// error yaml_error_type_t
|
|
// } context
|
|
//
|
|
// assert(document) // Non-NULL document is required.
|
|
// assert(sequence > 0
|
|
// && document.nodes.start + sequence <= document.nodes.top)
|
|
// // Valid sequence id is required.
|
|
// assert(document.nodes.start[sequence-1].type == YAML_SEQUENCE_NODE)
|
|
// // A sequence node is required.
|
|
// assert(item > 0 && document.nodes.start + item <= document.nodes.top)
|
|
// // Valid item id is required.
|
|
//
|
|
// if (!PUSH(&context,
|
|
// document.nodes.start[sequence-1].data.sequence.items, item))
|
|
// return 0
|
|
//
|
|
// return 1
|
|
//}
|
|
//
|
|
///*
|
|
// * Append a pair of a key and a value to a mapping node.
|
|
// */
|
|
//
|
|
//YAML_DECLARE(int)
|
|
//yaml_document_append_mapping_pair(document *yaml_document_t,
|
|
// mapping int, key int, value int)
|
|
//{
|
|
// struct {
|
|
// error yaml_error_type_t
|
|
// } context
|
|
//
|
|
// pair yaml_node_pair_t
|
|
//
|
|
// assert(document) // Non-NULL document is required.
|
|
// assert(mapping > 0
|
|
// && document.nodes.start + mapping <= document.nodes.top)
|
|
// // Valid mapping id is required.
|
|
// assert(document.nodes.start[mapping-1].type == YAML_MAPPING_NODE)
|
|
// // A mapping node is required.
|
|
// assert(key > 0 && document.nodes.start + key <= document.nodes.top)
|
|
// // Valid key id is required.
|
|
// assert(value > 0 && document.nodes.start + value <= document.nodes.top)
|
|
// // Valid value id is required.
|
|
//
|
|
// pair.key = key
|
|
// pair.value = value
|
|
//
|
|
// if (!PUSH(&context,
|
|
// document.nodes.start[mapping-1].data.mapping.pairs, pair))
|
|
// return 0
|
|
//
|
|
// return 1
|
|
//}
|
|
//
|
|
//
|