wip: turbo-getent

src/turbo-getent.zig

@@ -0,0 +1,50 @@
+const std = @import("std");
+const io = std.io;
+const os = std.os;
+const fmt = std.fmt;
+
+const flags = @import("flags.zig");
+
+const usage =
+    \\usage: turbo-getent [OPTION]... group|passwd [key...]
+    \\
+    \\  -h          Print this help message and exit
+    \\  --db=PATH   Path to the database (default: /etc/turbonss/db.turbo)
+    \\
+    \\turbo-getent resolves group or passwd (a.k.a. user) entries from the
+    \\database file. If one or more key arguments are provided, then only
+    \\entries that match the supplied keys will be displayed. If no key is
+    \\provided, all entries will be displayed.
+    \\
+;
+
+pub fn main() !void {
+    // This line is here because of https://github.com/ziglang/zig/issues/7807
+    const argv: []const [*:0]const u8 = os.argv;
+
+    const stderr = io.getStdErr().writer();
+    const stdout = io.getStdOut().writer();
+
+    const return_code = execute(stdout, stderr, argv[1..]);
+    os.exit(return_code);
+}
+
+fn execute(
+    stdout: anytype,
+    stderr: anytype,
+    argv: []const [*:0]const u8,
+) u8 {
+    const myflags = flags.parse(argv, &[_]flags.Flag{
+        .{ .name = "-h", .kind = .boolean },
+    }) catch {
+        stderr.writeAll(usage) catch {};
+        return 1;
+    };
+
+    if (myflags.boolFlag("-h")) {
+        stdout.writeAll(usage) catch return 1;
+        return 0;
+    }
+
+    return 0;
+}