util.c File Reference

Utility stubs for WASM/Emscripten (backtrace, localtime) More...

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Functions
int	platform_backtrace (void **buffer, int size)
char **	platform_backtrace_symbols (void *const *buffer, int size)
void	platform_backtrace_symbols_destroy (char **symbols)
void	platform_print_backtrace_symbols (const char *label, char **symbols, int count, int skip_frames, int max_frames, backtrace_frame_filter_t filter)
void	platform_print_backtrace (int skip_frames)
asciichat_error_t	platform_localtime (const time_t *timer, struct tm *result)
int	platform_isatty (int fd)
void	platform_clear_error_state (void)
bool	platform_get_temp_dir (char *temp_dir, size_t path_size)
bool	platform_prompt_yes_no (const char *question, bool default_yes)
int	platform_get_last_error (void)
const char *	platform_get_home_dir (void)
void	platform_normalize_path_separators (char *path)
char *	platform_get_config_dir (void)
bool	platform_get_cwd (char *cwd, size_t path_size)
int	platform_path_strcasecmp (const char *a, const char *b, size_t n)
int	platform_is_regular_file (const char *path)

Detailed Description

Utility stubs for WASM/Emscripten (backtrace, localtime)

Definition in file util.c.

Function Documentation

platform_backtrace()

int platform_backtrace	(	void **	buffer,
		int	size
	)

Definition at line 14 of file util.c.

                                                {
  (void)buffer;
  (void)size;
  return 0; // No backtrace support in WASM
}

Referenced by asciichat_fatal_with_context().

platform_backtrace_symbols()

char ** platform_backtrace_symbols	(	void *const *	buffer,
		int	size
	)

Definition at line 20 of file util.c.

                                                                 {
  (void)buffer;
  (void)size;
  return NULL; // No backtrace symbols in WASM
}

Referenced by asciichat_fatal_with_context().

platform_backtrace_symbols_destroy()

void platform_backtrace_symbols_destroy

(

char **

symbols

)

Definition at line 26 of file util.c.

                                                        {
  (void)symbols;
  // No-op
}

Referenced by asciichat_clear_errno(), asciichat_errno_destroy(), asciichat_fatal_with_context(), and asciichat_set_errno().

platform_clear_error_state()

void platform_clear_error_state

(

void

)

Definition at line 67 of file util.c.

                                      {
  // No-op - error state is thread-local, nothing to clear in WASM
}

Referenced by asciichat_clear_errno().

platform_get_config_dir()

char * platform_get_config_dir

(

void

)

Definition at line 102 of file util.c.

                                    {
  static char config_dir[] = "/config";
  return config_dir; // WASM virtual filesystem config directory
}

Referenced by acds_identity_default_path(), and get_config_dir().

platform_get_cwd()

bool platform_get_cwd	(	char *	cwd,
		size_t	path_size
	)

Definition at line 108 of file util.c.

                                                   {
  if (!cwd || path_size == 0) {
    return false;
  }
  platform_strlcpy(cwd, "/", path_size);
  return true;
}

References platform_strlcpy().

Referenced by get_log_dir(), and path_validate_user_path().

platform_get_home_dir()

const char * platform_get_home_dir

(

void

)

Definition at line 92 of file util.c.

                                        {
  return "/home"; // WASM virtual filesystem home
}

Referenced by expand_path(), and path_validate_user_path().

platform_get_last_error()

int platform_get_last_error

(

void

)

Definition at line 87 of file util.c.

                                  {
  return 0; // No system error in WASM
}

platform_get_temp_dir()

bool platform_get_temp_dir	(	char *	temp_dir,
		size_t	path_size
	)

Definition at line 72 of file util.c.

                                                             {
  if (!temp_dir || path_size == 0) {
    return false;
  }
  platform_strlcpy(temp_dir, "/tmp", path_size);
  return true;
}

References platform_strlcpy().

Referenced by get_log_dir(), and path_validate_user_path().

platform_is_regular_file()

int platform_is_regular_file

(

const char *

path

)

Definition at line 122 of file util.c.

                                               {
  (void)path;
  return 0; // No file system access in WASM mirror mode
}

Referenced by discovery_keys_clear_cache(), discovery_keys_load_cached(), and path_validate_user_path().

platform_isatty()

int platform_isatty

(

int

fd

)

Definition at line 61 of file util.c.

                            {
  (void)fd;
  return 1; // Always true for WASM terminal (xterm.js)
}

Referenced by session_display_create(), terminal_is_stderr_tty(), terminal_is_stdin_tty(), terminal_is_stdout_tty(), terminal_should_color_output(), and terminal_should_use_control_sequences().

platform_localtime()

asciichat_error_t platform_localtime	(	const time_t *	timer,
		struct tm *	result
	)

Definition at line 48 of file util.c.

                                                                             {
  if (!timer || !result) {
    return ERROR_INVALID_PARAM;
  }
  // Use thread-safe localtime_r for both WASM and native builds
  // IMPORTANT: localtime() is NOT thread-safe and causes deadlocks in threaded WASM builds
  if (localtime_r(timer, result) != NULL) {
    return ASCIICHAT_OK;
  }
  return ERROR_PLATFORM_INIT;
}

Referenced by asciichat_error_stats_print(), asciichat_print_error_context(), get_current_time_formatted(), manpage_fmt_write_title(), and time_format_now().

platform_normalize_path_separators()

void platform_normalize_path_separators

(

char *

path

)

Definition at line 96 of file util.c.

                                                    {
  // No-op - WASM uses forward slashes (Unix-style)
  (void)path;
}

Referenced by expand_path().

platform_path_strcasecmp()

int platform_path_strcasecmp	(	const char *	a,
		const char *	b,
		size_t	n
	)

Definition at line 117 of file util.c.

                                                                     {
  return strncmp(a, b, n); // Case-sensitive on WASM
}

Referenced by path_is_within_base().

platform_print_backtrace()

void platform_print_backtrace

(

int

skip_frames

)

Definition at line 42 of file util.c.

                                               {
  (void)skip_frames;
  // No-op - backtrace not supported in WASM
}

Referenced by main().

platform_print_backtrace_symbols()

void platform_print_backtrace_symbols	(	const char *	label,
		char **	symbols,
		int	count,
		int	skip_frames,
		int	max_frames,
		backtrace_frame_filter_t	filter
	)

Definition at line 31 of file util.c.

                                                                       {
  (void)label;
  (void)symbols;
  (void)count;
  (void)skip_frames;
  (void)max_frames;
  (void)filter;
  // No-op - backtrace not supported in WASM
}

platform_prompt_yes_no()

bool platform_prompt_yes_no	(	const char *	question,
		bool	default_yes
	)

Definition at line 81 of file util.c.

                                                                    {
  (void)question;
  return default_yes; // Always return default in WASM
}

Referenced by action_completions(), client_crypto_handshake(), config_create_default(), discovery_keys_verify_change(), options_config_generate_manpage_merged(), prompt_unknown_host(), prompt_unknown_host_no_identity(), and server_main().