Add regress coverage for crypto_ct_*_u8()

3 files changed, 111 insertions, 1 deletions

diff --git a/src/regress/lib/libcrypto/Makefile b/src/regress/lib/libcrypto/Makefile
index 871ae2093a..ffe08d04bd 100644
--- a/src/regress/lib/libcrypto/Makefile
+++ b/src/regress/lib/libcrypto/Makefile
@@ -1,4 +1,4 @@
-#       $OpenBSD: Makefile,v 1.56 2024/03/29 07:13:38 joshua Exp $
+#       $OpenBSD: Makefile,v 1.57 2024/04/25 14:27:29 jsing Exp $
 
 SUBDIR += aead
 SUBDIR += aes
@@ -14,6 +14,7 @@ SUBDIR += cast
 SUBDIR += certs
 SUBDIR += chacha
 SUBDIR += cms
+SUBDIR += crypto
 SUBDIR += ct
 SUBDIR += curve25519
 SUBDIR += des
diff --git a/src/regress/lib/libcrypto/crypto/Makefile b/src/regress/lib/libcrypto/crypto/Makefile
new file mode 100644
index 0000000000..34a4e7050b
--- /dev/null
+++ b/src/regress/lib/libcrypto/crypto/Makefile
@@ -0,0 +1,12 @@
+#       $OpenBSD: Makefile,v 1.1 2024/04/25 14:27:29 jsing Exp $
+
+PROG =  crypto_test
+
+DPADD+=         ${LIBCRYPTO}
+WARNINGS=       Yes
+LDFLAGS+=       -lcrypto
+CFLAGS+=        -DLIBRESSL_INTERNAL
+CFLAGS+=        -Wall -Wundef -Werror
+CFLAGS+=        -I${.CURDIR}/../../../../lib/libcrypto
+
+.include <bsd.regress.mk>
diff --git a/src/regress/lib/libcrypto/crypto/crypto_test.c b/src/regress/lib/libcrypto/crypto/crypto_test.c
new file mode 100644
index 0000000000..38ee2d57d4
--- /dev/null
+++ b/src/regress/lib/libcrypto/crypto/crypto_test.c
@@ -0,0 +1,97 @@
+/*      $OpenBSD: crypto_test.c,v 1.1 2024/04/25 14:27:29 jsing Exp $   */
+/*
+ * Copyright (c) 2024 Joel Sing <jsing@openbsd.org>
+ *
+ * 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 <stdint.h>
+#include <stdio.h>
+
+#include "crypto_internal.h"
+
+static int
+test_ct_u8(void)
+{
+        uint8_t i, j, mask;
+        int failed = 1;
+
+        i = 0;
+
+        do {
+                if ((i != 0) != crypto_ct_ne_zero_u8(i)) {
+                        fprintf(stderr, "FAIL: crypto_ct_ne_zero_u8(%d) = %d, "
+                            "want %d\n", i, crypto_ct_ne_zero_u8(i), i != 0);
+                        goto failure;
+                }
+                mask = (i != 0) ? 0xff : 0x00;
+                if (mask != crypto_ct_ne_zero_mask_u8(i)) {
+                        fprintf(stderr, "FAIL: crypto_ct_ne_zero_mask_u8(%d) = %x, "
+                            "want %x\n", i, crypto_ct_ne_zero_mask_u8(i), mask);
+                        goto failure;
+                }
+                if ((i == 0) != crypto_ct_eq_zero_u8(i)) {
+                        fprintf(stderr, "FAIL: crypto_ct_eq_zero_u8(%d) = %d, "
+                            "want %d\n", i, crypto_ct_ne_zero_u8(i), i != 0);
+                        goto failure;
+                }
+                mask = (i == 0) ? 0xff : 0x00;
+                if (mask != crypto_ct_eq_zero_mask_u8(i)) {
+                        fprintf(stderr, "FAIL: crypto_ct_eq_zero_mask_u8(%d) = %x, "
+                            "want %x\n", i, crypto_ct_ne_zero_mask_u8(i), mask);
+                        goto failure;
+                }
+
+                j = 0;
+
+                do {
+                        if ((i != j) != crypto_ct_ne_u8(i, j)) {
+                                fprintf(stderr, "FAIL: crypto_ct_ne_u8(%d, %d) = %d, "
+                                    "want %d\n", i, j, crypto_ct_ne_u8(i, j), i != j);
+                                goto failure;
+                        }
+                        mask = (i != j) ? 0xff : 0x00;
+                        if (mask != crypto_ct_ne_mask_u8(i, j)) {
+                                fprintf(stderr, "FAIL: crypto_ct_ne_mask_u8(%d, %d) = %x, "
+                                    "want %x\n", i, j, crypto_ct_ne_mask_u8(i, j), mask);
+                                goto failure;
+                        }
+                        if ((i == j) != crypto_ct_eq_u8(i, j)) {
+                                fprintf(stderr, "FAIL: crypto_ct_eq_u8(%d, %d) = %d, "
+                                    "want %d\n", i, j, crypto_ct_eq_u8(i, j), i != j);
+                                goto failure;
+                        }
+                        mask = (i == j) ? 0xff : 0x00;
+                        if (mask != crypto_ct_eq_mask_u8(i, j)) {
+                                fprintf(stderr, "FAIL: crypto_ct_eq_mask_u8(%d, %d) = %x, "
+                                    "want %x\n", i, j, crypto_ct_eq_mask_u8(i, j), mask);
+                                goto failure;
+                        }
+                } while (++j != 0);
+        } while (++i != 0);
+
+        failed = 0;
+
+ failure:
+        return failed;
+}
+
+int
+main(int argc, char **argv)
+{
+        int failed = 0;
+
+        failed |= test_ct_u8();
+
+        return failed;
+}