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A charm-like tui library
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123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960//! Server configuration. Uses plain struct defaults rather than wish's//! functional `WithX` options — zig has struct defaults, so the option-fn//! dance is unnecessary. Names still mirror wish for parity.const Options = @This();
/// Listen address (host + port). `std.Io.net.IpAddress` gives us parsing and/// validation for free — build it with `.parse("0.0.0.0", 2222)` or an/// `.{ .ip4 = ... }` literal. Default is 0.0.0.0:2222 so examples run without/// root.address: IpAddress = .{ .ip4 = .{ .bytes = .{ 0, 0, 0, 0 }, .port = 2222 } },
/// Path to a host key on disk (any type libssh accepts). If null and/// `host_key_pem` is also null, `serve` fails with `error.HostKeyRequired`.host_key_path: ?[:0]const u8 = null,
/// In-memory PEM-encoded host key. Overrides `host_key_path` if both are set.host_key_pem: ?[:0]const u8 = null,
/// Banner string sent before authentication.banner: [:0]const u8 = "",
/// Server identification string. libssh default is used when null.version: ?[:0]const u8 = null,
const std = @import("std");
const mem = std.mem;const IpAddress = std.Io.net.IpAddress;const Writer = std.Io.Writer;
/// Render the bind host (address *without* port) as a sentinel-terminated/// string into `buf`, for libssh's `SSH_BIND_OPTIONS_BINDADDR`. Note that/// `IpAddress.format` glues the port on (`a.b.c.d:port` / `[addr]:port`), so/// we format host-only ourselves.pub fn hostZ(self: Options, buf: []u8) ![:0]const u8 { switch (self.address) { .ip4 => |a| { const b = a.bytes; return mem.printSentinel(buf, "{d}.{d}.{d}.{d}", .{ b[0], b[1], b[2], b[3] }, 0) catch error.AddressTooLong; }, .ip6 => { // Ip6Address.format emits "[addr]:port"; take the bracketed part. var tmp: [64]u8 = undefined; var w: Writer = .fixed(&tmp); self.address.format(&w) catch return error.AddressTooLong; const s = w.buffered(); const start = (std.mem.indexOfScalar(u8, s, '[') orelse return error.AddressTooLong) + 1; const end = std.mem.indexOfScalar(u8, s, ']') orelse return error.AddressTooLong; return mem.printSentinel(buf, "{s}", .{s[start..end]}, 0) catch error.AddressTooLong; }, }}
/// Render the bind port as a sentinel-terminated string into `buf`, for/// libssh's `SSH_BIND_OPTIONS_BINDPORT_STR`.pub fn portZ(self: Options, buf: []u8) ![:0]const u8 { return mem.printSentinel(buf, "{d}", .{self.address.getPort()}, 0);}