build: Split test programs off into separate files

This avoids spurious library rebuilds when only the test program
code is changed and simplifies the build system.

1 files changed, 128 insertions, 0 deletions

diff --git a/libavutil/des-test.c b/libavutil/des-test.c
new file mode 100644
index 0000000000..a372035a54
--- /dev/null
+++ b/libavutil/des-test.c
@@ -0,0 +1,128 @@
+/*
+ * This file is part of Libav.
+ *
+ * Libav is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * Libav is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with Libav; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#include "des.c"
+
+#include <stdint.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+
+#include "time.h"
+
+static uint64_t rand64(void)
+{
+    uint64_t r = rand();
+    r = (r << 32) | rand();
+    return r;
+}
+
+static const uint8_t test_key[] = { 0x12, 0x34, 0x56, 0x78, 0x9a, 0xbc, 0xde, 0xf0 };
+static const DECLARE_ALIGNED(8, uint8_t, plain)[] = { 0xfe, 0xdc, 0xba, 0x98, 0x76, 0x54, 0x32, 0x10 };
+static const DECLARE_ALIGNED(8, uint8_t, crypt)[] = { 0x4a, 0xb6, 0x5b, 0x3d, 0x4b, 0x06, 0x15, 0x18 };
+static DECLARE_ALIGNED(8, uint8_t, tmp)[8];
+static DECLARE_ALIGNED(8, uint8_t, large_buffer)[10002][8];
+static const uint8_t cbc_key[] = {
+    0x01, 0x23, 0x45, 0x67, 0x89, 0xab, 0xcd, 0xef,
+    0x23, 0x45, 0x67, 0x89, 0xab, 0xcd, 0xef, 0x01,
+    0x45, 0x67, 0x89, 0xab, 0xcd, 0xef, 0x01, 0x23
+};
+
+static int run_test(int cbc, int decrypt)
+{
+    AVDES d;
+    int delay = cbc && !decrypt ? 2 : 1;
+    uint64_t res;
+    AV_WB64(large_buffer[0], 0x4e6f772069732074ULL);
+    AV_WB64(large_buffer[1], 0x1234567890abcdefULL);
+    AV_WB64(tmp,             0x1234567890abcdefULL);
+    av_des_init(&d, cbc_key, 192, decrypt);
+    av_des_crypt(&d, large_buffer[delay], large_buffer[0], 10000, cbc ? tmp : NULL, decrypt);
+    res = AV_RB64(large_buffer[9999 + delay]);
+    if (cbc) {
+        if (decrypt)
+            return res == 0xc5cecf63ecec514cULL;
+        else
+            return res == 0xcb191f85d1ed8439ULL;
+    } else {
+        if (decrypt)
+            return res == 0x8325397644091a0aULL;
+        else
+            return res == 0xdd17e8b8b437d232ULL;
+    }
+}
+
+int main(void)
+{
+    AVDES d;
+    int i;
+    uint64_t key[3];
+    uint64_t data;
+    uint64_t ct;
+    uint64_t roundkeys[16];
+    srand(av_gettime());
+    key[0] = AV_RB64(test_key);
+    data   = AV_RB64(plain);
+    gen_roundkeys(roundkeys, key[0]);
+    if (des_encdec(data, roundkeys, 0) != AV_RB64(crypt)) {
+        printf("Test 1 failed\n");
+        return 1;
+    }
+    av_des_init(&d, test_key, 64, 0);
+    av_des_crypt(&d, tmp, plain, 1, NULL, 0);
+    if (memcmp(tmp, crypt, sizeof(crypt))) {
+        printf("Public API decryption failed\n");
+        return 1;
+    }
+    if (!run_test(0, 0) || !run_test(0, 1) || !run_test(1, 0) || !run_test(1, 1)) {
+        printf("Partial Monte-Carlo test failed\n");
+        return 1;
+    }
+    for (i = 0; i < 1000; i++) {
+        key[0] = rand64();
+        key[1] = rand64();
+        key[2] = rand64();
+        data   = rand64();
+        av_des_init(&d, key, 192, 0);
+        av_des_crypt(&d, &ct, &data, 1, NULL, 0);
+        av_des_init(&d, key, 192, 1);
+        av_des_crypt(&d, &ct, &ct, 1, NULL, 1);
+        if (ct != data) {
+            printf("Test 2 failed\n");
+            return 1;
+        }
+    }
+#ifdef GENTABLES
+    printf("static const uint32_t S_boxes_P_shuffle[8][64] = {\n");
+    for (i = 0; i < 8; i++) {
+        int j;
+        printf("    {");
+        for (j = 0; j < 64; j++) {
+            uint32_t v = S_boxes[i][j >> 1];
+            v   = j & 1 ? v >> 4 : v & 0xf;
+            v <<= 28 - 4 * i;
+            v   = shuffle(v, P_shuffle, sizeof(P_shuffle));
+            printf((j & 7) == 0 ? "\n    " : " ");
+            printf("0x%08X,", v);
+        }
+        printf("\n    },\n");
+    }
+    printf("};\n");
+#endif
+    return 0;
+}