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m1ngsama f65e8add64 fix(security): enhance resource management 
- Convert message_load() file position array from fixed 1000 to dynamic:
  * Start with capacity of 1000, grow by 2x when needed
  * Use malloc/realloc for flexible memory management
  * Proper cleanup with free() after use
  * Graceful handling of memory allocation failures
- Enhance setup_host_key() error handling:
  * Validate key file size (reject 0 bytes and >10MB)
  * Automatically regenerate if key file is empty
  * Verify and fix insecure permissions (must be 0600)
  * Better error messages with file size reporting
- Improve client thread resource cleanup:
  * Use pthread_attr for explicit detached thread creation
  * Add pthread_mutex_destroy on thread creation failure
  * Proper cleanup order: mutex -> channel -> session -> memory
  * Add error logging with strerror() for thread failures

These changes address:
- Fixed 1000-line limit causing message truncation
- Corrupted/empty key file handling
- Permission race conditions
- Resource leaks on thread creation failure

Prevents:
- DoS via large log files
- Service startup failures from bad key files
- Memory/handle leaks under error conditions
2026-01-22 14:02:05 +08:00
.github/workflows Add CI/CD and deployment automation 2025-12-02 12:47:15 +08:00
include Fix critical memory and concurrency bugs 2025-11-30 09:00:00 +08:00
src fix(security): enhance resource management 2026-01-22 14:02:05 +08:00
.gitignore Add development and testing infrastructure 2025-12-02 10:00:00 +08:00
CHANGELOG.md Add developer documentation 2025-12-02 15:00:00 +08:00
CICD.md Add CI/CD and deployment automation 2025-12-02 12:47:15 +08:00
DEPLOYMENT.md Add CI/CD and deployment automation 2025-12-02 12:47:15 +08:00
HACKING Add developer documentation 2025-12-02 15:00:00 +08:00
install.sh Add CI/CD and deployment automation 2025-12-02 12:47:15 +08:00
LICENSE Initial commit 2025-07-01 09:00:00 +08:00
Makefile Add development and testing infrastructure 2025-12-02 10:00:00 +08:00
QUICKREF Add developer documentation 2025-12-02 15:00:00 +08:00
README Rewrite README in classic Unix style 2025-12-02 12:57:18 +08:00
README.md Rewrite README in classic Unix style 2025-12-02 12:57:18 +08:00
test_basic.sh Add development and testing infrastructure 2025-12-02 10:00:00 +08:00
test_stress.sh Add development and testing infrastructure 2025-12-02 10:00:00 +08:00
tnt.service Add CI/CD and deployment automation 2025-12-02 12:47:15 +08:00

README.md

TNT

Terminal chat server. Vim-style interface. SSH-based.

Install

curl -sSL https://raw.githubusercontent.com/m1ngsama/TNT/main/install.sh | sh

Or download from releases.

Run

tnt              # port 2222
tnt -p 3333      # custom port
PORT=3333 tnt    # env var

Connect: ssh -p 2222 localhost

Keys

INSERT (default)

  • ESC → NORMAL
  • Enter → send
  • Backspace → delete

NORMAL

  • i → INSERT
  • : → COMMAND
  • j/k → scroll
  • g/G → top/bottom
  • ? → help

COMMAND

  • :list → users
  • :help → commands
  • ESC → back

Build

make              # normal
make debug        # with symbols
make asan         # sanitizer
make check        # static analysis

Requires: libssh

Deploy

See DEPLOYMENT.md for systemd setup.

Files

messages.log      chat history
host_key          SSH key (auto-gen)
tnt.service       systemd unit

Test

./test_basic.sh         # functional
./test_stress.sh 50     # 50 clients

Docs

  • README - man page style
  • HACKING - dev guide
  • DEPLOYMENT.md - production
  • CICD.md - automation
  • QUICKREF - cheat sheet

License

MIT