1 files changed, 105 insertions, 0 deletions
diff --git a/lib/util/regress/uuid/uuid_test.c b/lib/util/regress/uuid/uuid_test.c
new file mode 100644
index 0000000..37ef417
--- /dev/null
+++ b/lib/util/regress/uuid/uuid_test.c
@@ -0,0 +1,105 @@
+/*
+ * SPDX-License-Identifier: ISC
+ *
+ * Copyright (c) 2021 Todd C. Miller <Todd.Miller@sudo.ws>
+ *
+ * Permission to use, copy, modify, and distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+ * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+ * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+ * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ */
+
+#include <config.h>
+
+#include <stdlib.h>
+#if defined(HAVE_STDINT_H)
+# include <stdint.h>
+#elif defined(HAVE_INTTYPES_H)
+# include <inttypes.h>
+#endif
+#include <string.h>
+#include <unistd.h>
+
+#define SUDO_ERROR_WRAP 0
+
+#include "sudo_compat.h"
+#include "sudo_fatal.h"
+#include "sudo_util.h"
+
+sudo_dso_public int main(int argc, char *argv[]);
+
+/*
+ * Test that sudo_uuid_create() generates a variant 1, version 4 uuid.
+ */
+
+/* From RFC 4122. */
+struct uuid {
+    uint32_t time_low;
+    uint16_t time_mid;
+    uint16_t time_hi_and_version;
+    uint8_t clock_seq_hi_and_reserved;
+    uint8_t clock_seq_low;
+    uint8_t node[6];
+};
+
+int
+main(int argc, char *argv[])
+{
+    int ch, errors = 0, ntests = 0;
+    union {
+        struct uuid id;
+        unsigned char u8[16];
+    } uuid;
+
+    initprogname(argc > 0 ? argv[0] : "uuid_test");
+
+    while ((ch = getopt(argc, argv, "v")) != -1) {
+	switch (ch) {
+	case 'v':
+	    /* ignore */
+	    break;
+	default:
+	    fprintf(stderr, "usage: %s [-v]\n", getprogname());
+	    return EXIT_FAILURE;
+	}
+    }
+    argc -= optind;
+    argv += optind;
+
+    /* Do 16 passes. */
+    for (ntests = 0; ntests < 16; ntests++) {
+	sudo_uuid_create(uuid.u8);
+
+	/* Variant: two most significant bits (6 and 7) are 0 and 1. */
+	if (ISSET(uuid.id.clock_seq_hi_and_reserved, (1 << 6))) {
+	    sudo_warnx("uuid bit 6 set, should be clear");
+	    errors++;
+	    continue;
+	}
+	if (!ISSET(uuid.id.clock_seq_hi_and_reserved, (1 << 7))) {
+	    sudo_warnx("uuid bit 7 clear, should be set");
+	    errors++;
+	    continue;
+	}
+
+	/* Version: bits 12-15 are 0010. */
+	if ((uuid.id.time_hi_and_version & 0xf000) != 0x4000) {
+	    sudo_warnx("bad version: 0x%x", uuid.id.time_hi_and_version & 0xf000);
+	    errors++;
+	    continue;
+	}
+    }
+
+    if (ntests != 0) {
+	printf("%s: %d tests run, %d errors, %d%% success rate\n",
+	    getprogname(), ntests, errors, (ntests - errors) * 100 / ntests);
+    }
+    return errors;
+}