Miscellaneous improvements

Signed-off-by: Mattias Andrée <maandree@kth.se>

1 files changed, 114 insertions, 0 deletions

diff --git a/testutil/test-search.c b/testutil/test-search.c
new file mode 100644
index 0000000..93d6d03
--- /dev/null
+++ b/testutil/test-search.c
@@ -0,0 +1,114 @@
+/* See LICENSE file for copyright and license details. */
+#include "../libsyscalls.h"
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+
+#if defined(__clang__)
+# pragma clang diagnostic ignored "-Wunsafe-buffer-usage" /* clang is just being silly */
+#endif
+
+
+static struct libsyscalls_named_number not_found;
+static size_t not_found_count = 0;
+static char **argv;
+
+static void
+check(unsigned long long int key, const struct libsyscalls_named_number *base, size_t n, int is_signed)
+{
+	static int first = 1;
+
+	const struct libsyscalls_named_number *found;
+	found = libsyscalls_find_named_number(key, is_signed, base, n);
+	if (found) {
+		if (first)
+			not_found.number.u = key + 1;
+		if (found->number.u != key) {
+			fprintf(stderr, "test-search %s %s %s: found incorrect element: %llu instead of %llu\n",
+			        argv[1], argv[4], argv[5], found->number.u, key);
+			exit(1);
+		}
+	} else {
+		if (first) {
+			fprintf(stderr, "test-search %s %s %s: did not find first element\n", argv[1], argv[4], argv[5]);
+			exit(1);
+		}
+		not_found.number.u = key;
+		not_found_count += 1;
+	}
+
+	first = 0;
+}
+
+
+int
+main(int argc, char **argv_)
+{
+	int os, arch, search_singals, is_signed;
+	enum libsyscalls_error err;
+	const struct libsyscalls_named_number *base, *min, *max;
+	unsigned long long int ukey;
+	signed long long int skey;
+	size_t n, expected_not_found_count;
+
+	argv = argv_;
+
+	if (argc != 6) {
+	usage:
+		fprintf(stderr, "usage error\n");
+		return 1;
+	}
+
+	if (!strcmp(argv[1], "signals"))
+		search_singals = 1;
+	else if (!strcmp(argv[1], "errors"))
+		search_singals = 0;
+	else
+		goto usage;
+	os = atoi(argv[2]);
+	arch = atoi(argv[3]);
+
+	if (search_singals)
+		err = libsyscalls_get_signals((enum libsyscalls_os)os, (enum libsyscalls_arch)arch, &base, &n, &is_signed);
+	else
+		err = libsyscalls_get_syscall_errors((enum libsyscalls_os)os, (enum libsyscalls_arch)arch, &base, &n, &is_signed);
+	if (err) {
+		fprintf(stderr, "test-search %s %s %s: ", argv[1], argv[4], argv[5]);
+		libsyscalls_perror(NULL, err);
+		return 1;
+	}
+
+	if (!n)
+		return 0;
+
+	min = &base[0];
+	max = &base[n - 1];
+
+	if (is_signed) {
+		skey = min->number.s;
+		do {
+			check(*(unsigned long long int *)&skey, base, n, is_signed);
+		} while (skey++ != max->number.s);
+		expected_not_found_count = (size_t)((unsigned long long int)max->number.s -
+		                                    (unsigned long long int)min->number.s -
+		                                    (unsigned long long int)n + 1);
+	} else {
+		ukey = min->number.u;
+		do {
+			check(ukey, base, n, is_signed);
+		} while (ukey++ != max->number.u);
+		expected_not_found_count = (size_t)(max->number.u - min->number.u - (unsigned long long int)n + 1);
+	}
+
+	if (not_found.number.u == max->number.u) {
+		fprintf(stderr, "test-search %s %s %s: did not find last element\n", argv[1], argv[4], argv[5]);
+		return 1;
+	}
+	if (not_found_count != expected_not_found_count) {
+		fprintf(stderr, "test-search %s %s %s: did not find all elements\n", argv[1], argv[4], argv[5]);
+		return 1;
+	}
+
+	return 0;
+}