3b6bb15e86
d9b8fa6098d fix: Fake broadcast address for 127.x.x.x aa649165a57 chore: Add code for future netprof TCP testing 9e5693de5ac chore: add to_string functions for netprof enums 52d915e6a90 cleanup: Heap allocate network profile objects 80fabd4a729 feat: Implement Tox network profiler 05abe083cb6 cleanup: Some random cleanups, mostly related to mem. 5cca24513b8 cleanup: Check that onion IP/Port packing worked. e092ecd1244 cleanup: Use tox memory allocator in some more places. 3cfe41c7587 fix: Avoid `memcpy`-ing structs into onion ping id data. e32ac001938 fix: Add more information on why the frame was not sent. ab887003687 fix: Allow TCP connections to fail `connect` calls. 7603170e663 refactor: Use tox memory in group connection allocations. 5bd8a85eb89 cleanup: Align internal logger with external on type of source line. e9bf524d9e1 cleanup: Add missing `#include` to sort_test.cc. d10c966b998 feat: Add `to_string` functions for toxencryptsave errors. 7bfd0dc8003 docs: Update the docs for group join functions 380dde9f2ae test: Add more logging to TCP connection constructor. 0f12f384c8c cleanup: Reduce stack frame sizes to below 4096 bytes. bc43cec0626 chore: Happy new year! fbe78f1702e cleanup: Add a `TOX_HIDE_DEPRECATED` check to hide deprecated symbols. 44d9da07e77 refactor: Use tox memory for group moderation/pack allocations. 7f26d520168 refactor: Use tox memory in group chats allocations. 2f62f3d0e77 refactor: Use tox Memory for group allocations. 8a968162041 chore: Add dispatch/events headers to bazel export. 2bbfb35abf6 docs: Output the error code string instead of int. in toxav logging d55d0e4eaef cleanup: Remove redundant code for checking if group exists 2a6dc643338 chore: Upgrade dependencies for websockify. fc0650601c1 fix: Allow peers to reconnect to group chats using a password git-subtree-dir: external/toxcore/c-toxcore git-subtree-split: d9b8fa6098de6c074038b6664d2572627540b148
126 lines
5.3 KiB
C
126 lines
5.3 KiB
C
/* SPDX-License-Identifier: GPL-3.0-or-later
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* Copyright © 2022-2025 The TokTok team.
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*/
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#ifndef C_TOXCORE_TOXCORE_BIN_UNPACK_H
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#define C_TOXCORE_TOXCORE_BIN_UNPACK_H
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#include <stdbool.h>
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#include <stdint.h>
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#include "attributes.h"
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#ifdef __cplusplus
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extern "C" {
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#endif
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/**
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* @brief Binary deserialisation object.
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*
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* User code never creates this object. It is created and destroyed within the below functions,
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* and passed to the callback. This enforces an alloc/dealloc bracket, so user code can never
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* forget to clean up an unpacker.
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*/
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typedef struct Bin_Unpack Bin_Unpack;
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/** @brief Function used to unpack an object.
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*
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* This function would typically cast the `void *` to the actual object pointer type and then call
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* more appropriately typed unpacking functions.
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*/
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typedef bool bin_unpack_cb(void *obj, Bin_Unpack *bu);
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/** @brief Unpack an object from a buffer of a given size.
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*
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* This function creates and initialises a `Bin_Unpack` object, calls the callback with the
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* unpacker object and the to-be-unpacked object, and then cleans up the unpacker object.
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*
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* Unlike `bin_pack_obj`, this function does not support NULL anywhere. The input array
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* must be non-null, even if it is zero-length.
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*
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* @param callback The function called on the created unpacker and unpacked object.
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* @param obj The object to be packed, passed as `obj` to the callback.
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* @param buf A byte array containing the serialised representation of `obj`.
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* @param buf_size The size of the byte array.
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*
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* @retval false if an error occurred (e.g. buffer overrun).
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*/
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non_null()
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bool bin_unpack_obj(bin_unpack_cb *callback, void *obj, const uint8_t *buf, uint32_t buf_size);
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/** @brief Start unpacking a MessagePack array.
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*
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* A call to this function must be followed by exactly `size` calls to other functions below.
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*
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* @param size Will contain the number of array elements following the array marker.
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*/
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non_null() bool bin_unpack_array(Bin_Unpack *bu, uint32_t *size);
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/** @brief Start unpacking a fixed size MessagePack array.
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*
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* Fails if the array size is not the required size. If `actual_size` is passed a non-null
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* pointer, the array size is written there.
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*
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* @retval false if the packed array size is not exactly the required size.
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*/
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non_null(1) nullable(3)
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bool bin_unpack_array_fixed(Bin_Unpack *bu, uint32_t required_size, uint32_t *actual_size);
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/** @brief Unpack a MessagePack bool. */
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non_null() bool bin_unpack_bool(Bin_Unpack *bu, bool *val);
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/** @brief Unpack a MessagePack positive int into a `uint8_t`. */
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non_null() bool bin_unpack_u08(Bin_Unpack *bu, uint8_t *val);
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/** @brief Unpack a MessagePack positive int into a `uint16_t`. */
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non_null() bool bin_unpack_u16(Bin_Unpack *bu, uint16_t *val);
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/** @brief Unpack a MessagePack positive int into a `uint32_t`. */
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non_null() bool bin_unpack_u32(Bin_Unpack *bu, uint32_t *val);
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/** @brief Unpack a MessagePack positive int into a `uint64_t`. */
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non_null() bool bin_unpack_u64(Bin_Unpack *bu, uint64_t *val);
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/** @brief Unpack a Messagepack nil value. */
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non_null() bool bin_unpack_nil(Bin_Unpack *bu);
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/** @brief Unpack a MessagePack bin into a newly allocated byte array.
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*
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* Allocates a new byte array and stores it into `data_ptr` with its length stored in
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* `data_length_ptr`. This function requires that the unpacking buffer has at least as many bytes
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* remaining to be unpacked as the bin claims to need, so it's not possible to cause an arbitrarily
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* large allocation unless the input array was already that large.
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*/
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non_null() bool bin_unpack_bin(Bin_Unpack *bu, uint8_t **data_ptr, uint32_t *data_length_ptr);
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/** @brief Unpack a variable size MessagePack bin into a fixed size byte array.
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*
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* Stores unpacked data into `data` with its length stored in `data_length_ptr`. This function does
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* not allocate memory and requires that `max_data_length` is less than or equal to `sizeof(arr)`
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* when `arr` is passed as `data` pointer.
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*/
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non_null() bool bin_unpack_bin_max(Bin_Unpack *bu, uint8_t *data, uint16_t *data_length_ptr, uint16_t max_data_length);
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/** @brief Unpack a MessagePack bin of a fixed length into a pre-allocated byte array.
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*
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* Similar to the function above, but doesn't output the data length.
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*/
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non_null() bool bin_unpack_bin_fixed(Bin_Unpack *bu, uint8_t *data, uint32_t data_length);
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/** @brief Start unpacking a custom binary representation.
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*
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* A call to this function must be followed by exactly `size` bytes packed by functions below.
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*/
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non_null() bool bin_unpack_bin_size(Bin_Unpack *bu, uint32_t *size);
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/** @brief Read a `uint8_t` directly from the unpacker, consuming 1 byte. */
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non_null() bool bin_unpack_u08_b(Bin_Unpack *bu, uint8_t *val);
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/** @brief Read a `uint16_t` as big endian 16 bit int, consuming 2 bytes. */
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non_null() bool bin_unpack_u16_b(Bin_Unpack *bu, uint16_t *val);
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/** @brief Read a `uint32_t` as big endian 32 bit int, consuming 4 bytes. */
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non_null() bool bin_unpack_u32_b(Bin_Unpack *bu, uint32_t *val);
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/** @brief Read a `uint64_t` as big endian 64 bit int, consuming 8 bytes. */
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non_null() bool bin_unpack_u64_b(Bin_Unpack *bu, uint64_t *val);
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/** @brief Read a byte array directly from the packer, consuming `length` bytes. */
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non_null() bool bin_unpack_bin_b(Bin_Unpack *bu, uint8_t *data, uint32_t length);
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#ifdef __cplusplus
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} /* extern "C" */
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#endif
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#endif /* C_TOXCORE_TOXCORE_BIN_UNPACK_H */
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