Adding upstream version 1.8.

Signed-off-by: Daniel Baumann <daniel@debian.org>

test/sysfs/sysfs.c

@@ -0,0 +1,89 @@
+// SPDX-License-Identifier: LGPL-2.1-or-later
+/**
+ * This file is part of libnvme.
+ * Copyright (c) 2024 Daniel Wagner, SUSE LLC
+ */
+
+#include "nvme/tree.h"
+#include <assert.h>
+#include <errno.h>
+#include <string.h>
+#include <stdbool.h>
+#include <stdlib.h>
+#include <arpa/inet.h>
+
+#include <ccan/array_size/array_size.h>
+
+#include <libnvme.h>
+#include <nvme/private.h>
+
+static bool test_sysfs(const char *path, const char *filename)
+{
+	FILE *f;
+	nvme_root_t r;
+	int err;
+
+	f = fopen(filename, "w");
+	if (!f)
+		return false;
+
+	r = nvme_create_root(f, LOG_ERR);
+	assert(r);
+
+	err = nvme_scan_topology(r, NULL, NULL);
+	if (!err)
+		nvme_dump_tree(r);
+	fprintf(f, "\n");
+
+	nvme_free_tree(r);
+	fclose(f);
+
+	return err == 0;
+}
+
+static bool compare_content(const char *filename1, const char *filename2)
+{
+	FILE *f1, *f2;
+	char c1, c2;
+	bool pass = false;
+
+	f1 = fopen(filename1, "r");
+	if (!f1)
+		return false;
+
+	f2 = fopen(filename2, "r");
+	if (!f2) {
+		fclose(f1);
+		return false;
+	}
+
+	do {
+		c1 = getc(f1);
+		c2 = getc(f2);
+		if (c1 != c2)
+			goto out;
+	} while (c1 != EOF || c2 != EOF);
+
+	if (c1 == c2)
+		pass = true;
+out:
+	fclose(f1);
+	fclose(f2);
+
+	return pass;
+}
+
+int main(int argc, char *argv[])
+{
+	bool pass = true;
+
+	if (argc < 4) {
+		fprintf(stderr, "usage: test-sysfs SYSFS_DIR OUTPUT_FILE COMPARE_FILE\n");
+		return EXIT_FAILURE;
+	}
+
+	pass &= test_sysfs(argv[1], argv[2]);
+	pass &= compare_content(argv[2], argv[3]);
+
+	exit(pass ? EXIT_SUCCESS : EXIT_FAILURE);
+}