v4.1.0

Added

• The slirp_new() API, simpler and more extensible than slirp_init().
• Allow custom MTU configuration.
• Option to disable host loopback connections.
• CI now runs scan-build too.

Changed

• Disable tcp_emu() by default. tcp_emu() is known to have caused several CVEs, and not useful today in most cases. The feature can be still enabled by setting SlirpConfig.enable_emu to true.
• meson build system is now subproject() friendly.
• Replace remaining malloc()/free() with glib (which aborts on OOM)
• Various code cleanups.

Deprecated

• The slirp_init() API.

Fixed

• getpeername() error after shutdown(SHUT_WR).
• Exec forward: correctly parse command lines that contain spaces.
• Allow 0.0.0.0 destination address.
• Make host receive broadcast packets.
• Various memory related fixes (heap overflow, leaks, NULL dereference).
• Compilation warnings, dead code.