Buffer Sizes

Standard buffer size constants. More...

Files
file	buffer_sizes.h
	Common buffer size definitions.

Macros
#define	UTF8_MAX_BYTES   4
#define	UTF8_BUFFER_SIZE   (UTF8_MAX_BYTES + 1)
#define	BUFFER_SIZE_SMALL   256
	Small buffer size (256 bytes).
#define	BUFFER_SIZE_MEDIUM   512
	Medium buffer size (512 bytes).
#define	BUFFER_SIZE_LARGE   1024
	Large buffer size (1024 bytes).
#define	BUFFER_SIZE_XLARGE   2048
	Extra large buffer size (2048 bytes).
#define	BUFFER_SIZE_XXLARGE   4096
	Extra extra large buffer size (4096 bytes).
#define	BUFFER_SIZE_XXXLARGE   8192
	Extra extra extra large buffer size (8192 bytes).
#define	BUFFER_SIZE_HUGE   16384
	Huge buffer size (16kb).
#define	BYTES_PER_RGB_PIXEL   3
	Bytes per pixel in RGB24 format (red + green + blue).
#define	IMAGE_FRAME_HEADER_SIZE_LEGACY   8
	Legacy image frame header size (width:4 + height:4).
#define	IMAGE_FRAME_HEADER_SIZE_NEW   16
	New image frame header size (width:4 + height:4 + compressed:4 + size:4).
#define	MAX_FRAME_WIDTH   1920
	Maximum reasonable frame width (prevents memory exhaustion).
#define	MAX_FRAME_HEIGHT   1080
	Maximum reasonable frame height (prevents memory exhaustion).
#define	MAX_FRAME_PIXELS   (MAX_FRAME_WIDTH * MAX_FRAME_HEIGHT)
	Maximum total frame pixels (width * height).
#define	MAX_FRAME_RGB_SIZE   (MAX_FRAME_PIXELS * BYTES_PER_RGB_PIXEL)
	Maximum RGB buffer size (MAX_FRAME_PIXELS * BYTES_PER_RGB_PIXEL).
#define	MAX_FRAME_BUFFER_SIZE   (2 * 1024 * 1024)
	Maximum frame buffer size including headers and compression.

Detailed Description

Standard buffer size constants.

Macro Definition Documentation

BUFFER_SIZE_HUGE

#define BUFFER_SIZE_HUGE   16384

#include <include/ascii-chat/common/buffer_sizes.h>

Huge buffer size (16kb).

Used for huge buffers like stack traces and other system messages.

Definition at line 80 of file buffer_sizes.h.

BUFFER_SIZE_LARGE

#define BUFFER_SIZE_LARGE   1024

#include <include/ascii-chat/common/buffer_sizes.h>

Large buffer size (1024 bytes).

Used for longer strings, full paths, and larger temporary buffers.

Definition at line 44 of file buffer_sizes.h.

Referenced by check_gpg_key_expiry(), gpg_get_public_key(), gpg_verify_signature_with_binary(), https_get(), parse_keys_from_file(), and parse_public_key().

BUFFER_SIZE_MEDIUM

#define BUFFER_SIZE_MEDIUM   512

#include <include/ascii-chat/common/buffer_sizes.h>

Medium buffer size (512 bytes).

Used for medium-length strings, paths, and intermediate buffers.

Definition at line 35 of file buffer_sizes.h.

Referenced by add_known_host(), check_gpg_key_expiry(), check_known_host_no_identity(), check_known_host_with_key(), config_create_default(), config_load_and_apply(), display_mitm_warning(), gpg_get_public_key(), gpg_verify_signature_with_binary(), layout_print_wrapped_description(), parse_gpg_keys_from_response(), prompt_unknown_host(), prompt_unknown_host_no_identity(), remove_known_host(), and stats_logger_thread().

BUFFER_SIZE_SMALL

#define BUFFER_SIZE_SMALL   256

#include <include/ascii-chat/common/buffer_sizes.h>

Small buffer size (256 bytes).

Used for short strings, error messages, and small temporary buffers.

Definition at line 26 of file buffer_sizes.h.

Referenced by build_github_gpg_url(), build_gitlab_gpg_url(), client_main(), config_schema_build_from_configs(), disconnect_client_for_bad_data(), fetch_github_gpg_keys(), fetch_github_ssh_keys(), fetch_gitlab_gpg_keys(), fetch_gitlab_ssh_keys(), format_ip_with_port(), gpg_get_public_key(), is_valid_ipv4(), is_valid_ipv6(), parse_gpg_keys_from_response(), parse_ip_with_port(), parse_log_level_option(), prompt_password_simple_kind(), ssh_agent_add_key(), validate_ssh_key_file(), and validate_webcam_index().

BUFFER_SIZE_XLARGE

#define BUFFER_SIZE_XLARGE   2048

#include <include/ascii-chat/common/buffer_sizes.h>

Extra large buffer size (2048 bytes).

Used for very long strings, multiple paths, and large temporary buffers.

Definition at line 53 of file buffer_sizes.h.

Referenced by check_known_host_no_identity(), check_known_host_with_key(), gpg_get_public_key(), and remove_known_host().

BUFFER_SIZE_XXLARGE

#define BUFFER_SIZE_XXLARGE   4096

#include <include/ascii-chat/common/buffer_sizes.h>

Extra extra large buffer size (4096 bytes).

Used for maximum-length paths and very large temporary buffers.

Definition at line 62 of file buffer_sizes.h.

Referenced by ssh_agent_add_key(), and ssh_agent_sign().

BUFFER_SIZE_XXXLARGE

#define BUFFER_SIZE_XXXLARGE   8192

#include <include/ascii-chat/common/buffer_sizes.h>

Extra extra extra large buffer size (8192 bytes).

Used for extremely large buffers like exception messages and stack traces.

Definition at line 71 of file buffer_sizes.h.

Referenced by gpg_get_public_key(), and ssh_agent_has_key().

BYTES_PER_RGB_PIXEL

#define BYTES_PER_RGB_PIXEL   3

#include <include/ascii-chat/common/buffer_sizes.h>

Bytes per pixel in RGB24 format (red + green + blue).

Definition at line 91 of file buffer_sizes.h.

IMAGE_FRAME_HEADER_SIZE_LEGACY

#define IMAGE_FRAME_HEADER_SIZE_LEGACY   8

#include <include/ascii-chat/common/buffer_sizes.h>

Legacy image frame header size (width:4 + height:4).

Used for backward compatibility with older frame format.

Definition at line 100 of file buffer_sizes.h.

IMAGE_FRAME_HEADER_SIZE_NEW

#define IMAGE_FRAME_HEADER_SIZE_NEW   16

#include <include/ascii-chat/common/buffer_sizes.h>

New image frame header size (width:4 + height:4 + compressed:4 + size:4).

Used for new compressed frame format with compression flag and data size.

Definition at line 109 of file buffer_sizes.h.

MAX_FRAME_BUFFER_SIZE

#define MAX_FRAME_BUFFER_SIZE   (2 * 1024 * 1024)

#include <include/ascii-chat/common/buffer_sizes.h>

Maximum frame buffer size including headers and compression.

Used as a practical limit to prevent memory exhaustion from oversized frames. This is larger than typical compressed frames but smaller than uncompressed RGB.

Definition at line 147 of file buffer_sizes.h.

Referenced by handle_image_frame_packet(), simple_frame_swap_create(), simple_frame_swap_update(), and video_frame_buffer_create().

MAX_FRAME_HEIGHT

#define MAX_FRAME_HEIGHT   1080

#include <include/ascii-chat/common/buffer_sizes.h>

Maximum reasonable frame height (prevents memory exhaustion).

Definition at line 123 of file buffer_sizes.h.

MAX_FRAME_PIXELS

#define MAX_FRAME_PIXELS   (MAX_FRAME_WIDTH * MAX_FRAME_HEIGHT)

#include <include/ascii-chat/common/buffer_sizes.h>

Maximum total frame pixels (width * height).

Definition at line 130 of file buffer_sizes.h.

MAX_FRAME_RGB_SIZE

#define MAX_FRAME_RGB_SIZE   (MAX_FRAME_PIXELS * BYTES_PER_RGB_PIXEL)

#include <include/ascii-chat/common/buffer_sizes.h>

Maximum RGB buffer size (MAX_FRAME_PIXELS * BYTES_PER_RGB_PIXEL).

Definition at line 137 of file buffer_sizes.h.

MAX_FRAME_WIDTH

#define MAX_FRAME_WIDTH   1920

#include <include/ascii-chat/common/buffer_sizes.h>

Maximum reasonable frame width (prevents memory exhaustion).

Definition at line 116 of file buffer_sizes.h.

UTF8_BUFFER_SIZE

#define UTF8_BUFFER_SIZE   (UTF8_MAX_BYTES + 1)

#include <include/ascii-chat/common/buffer_sizes.h>

Definition at line 17 of file buffer_sizes.h.

Referenced by ansi_expand_rle(), keyboard_text_encode(), tui_input_events_read(), ui_input_edit_key(), and validate_palette_chars().

UTF8_MAX_BYTES

#define UTF8_MAX_BYTES   4

#include <include/ascii-chat/common/buffer_sizes.h>

Unicode scalar encoding storage; text capacity includes NUL.

Definition at line 16 of file buffer_sizes.h.