From ec71c53bec7a25c625480f6d3e6cb8cd113227e5 Mon Sep 17 00:00:00 2001
From: Jakob Kaivo <jkk@ung.org>
Date: Tue, 28 Feb 2023 15:23:28 -0500
Subject: rough outline, need to figure out all the primaries (state machine?)

---
 find.c | 99 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 99 insertions(+)
 create mode 100644 find.c

diff --git a/find.c b/find.c
new file mode 100644
index 0000000..7d8168d
--- /dev/null
+++ b/find.c
@@ -0,0 +1,99 @@
+/*
+ * UNG's Not GNU
+ *
+ * Copyright (c) 2023, Jakob Kaivo <jkk@ung.org>
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
+ */
+
+#define _XOPEN_SOURCE 700
+#include <errno.h>
+#include <ftw.h>
+#include <locale.h>
+#include <stdio.h>
+#include <string.h>
+#include <sys/types.h>
+#include <unistd.h>
+
+static int find_ftw(const char *path, const struct stat *st, int flags, struct FTW *ftw)
+{
+	(void)st;
+	(void)flags;
+	(void)ftw;
+	printf("%s\n", path);
+	return 0;
+}
+
+static int find (const char *path, int argc, char *argv[])
+{
+	(void)argc; (void)argv;
+	nftw(path, find_ftw, 0, 0);
+	return 0;
+}
+
+int main(int argc, char *argv[])
+{
+	setlocale(LC_ALL, "");
+
+	int c;
+	while ((c = getopt(argc, argv, "HL")) != -1) {
+		switch(c) {
+		case 'H':	/** ??? **/
+			/* TODO */
+			break;
+
+		case 'L':	/** ??? **/
+			/* TODO */
+			break;
+
+		default:
+			return 1;
+		}
+	}
+
+	int firstdir = optind;
+
+	/* determine first operand */
+	while (optind < argc) {
+		if (argv[optind][0] == '-') {
+			break;
+		}
+		if (!strcmp(argv[optind], "!")) {
+			break;
+		}
+		if (!strcmp(argv[optind], "(")) {
+			break;
+		}
+		optind++;
+	}
+
+	int lastdir = optind;
+
+	if (firstdir == lastdir) {
+		fprintf(stderr, "%s: missing path\n", argv[0]);
+		return 1;
+	}
+
+	int ret = 0;
+	for (int i = firstdir; i < lastdir; i++) {
+		ret |= find(argv[i], argc, argv + optind);
+	}
+
+	return 0;
+}
-- 
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