TNT/include/common.h
m1ngsama b1c1e5a894 fix: deadlock in whisper, use-after-free in callbacks, log rotation, tail parsing
- Whisper: copy target client ref out of room lock before calling
  client_send, preventing lock-ordering inversion deadlock
- Channel callbacks: call ssh_remove_channel_callbacks before releasing
  refs to prevent use-after-free if a callback fires during cleanup
- Log rotation: rotate messages.log to messages.log.1 when it exceeds
  10 MiB, preventing unbounded growth on public servers
- tail -nN: accept both "tail -n5" and "tail -n 5" forms, matching
  standard Unix tail behavior

Closes #36
2026-04-19 18:27:54 +08:00

56 lines
1.2 KiB
C

#ifndef COMMON_H
#define COMMON_H
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <stdint.h>
#include <stdbool.h>
#include <stdatomic.h>
#include <time.h>
#include <limits.h>
#include <pthread.h>
/* Project Metadata */
#define TNT_VERSION "1.0.0"
/* Configuration constants */
#define DEFAULT_PORT 2222
#define MAX_MESSAGES 100
#define MAX_USERNAME_LEN 64
#define MAX_MESSAGE_LEN 1024
#define MAX_EXEC_COMMAND_LEN 1024
#define MAX_CLIENTS 64
#define LOG_FILE "messages.log"
#define MAX_LOG_SIZE (10 * 1024 * 1024) /* 10 MiB */
#define HOST_KEY_FILE "host_key"
#define TNT_DEFAULT_STATE_DIR "."
/* ANSI color codes */
#define ANSI_RESET "\033[0m"
#define ANSI_BOLD "\033[1m"
#define ANSI_REVERSE "\033[7m"
#define ANSI_CLEAR "\033[2J"
#define ANSI_HOME "\033[H"
#define ANSI_CLEAR_LINE "\033[K"
/* Operating modes */
typedef enum {
MODE_INSERT,
MODE_NORMAL,
MODE_COMMAND,
MODE_HELP
} client_mode_t;
/* Help language */
typedef enum {
LANG_EN,
LANG_ZH
} help_lang_t;
/* Runtime helpers */
const char* tnt_state_dir(void);
int tnt_ensure_state_dir(void);
int tnt_state_path(char *buffer, size_t buf_size, const char *filename);
#endif /* COMMON_H */