sync code with last improvements from OpenBSD

lib/libXdmcp/test/Array.c

@@ -0,0 +1,92 @@
+/*
+ * Copyright (c) 2013, Oracle and/or its affiliates. All rights reserved.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice (including the next
+ * paragraph) shall be included in all copies or substantial portions of the
+ * Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
+ * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+ * DEALINGS IN THE SOFTWARE.
+ */
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <assert.h>
+#include <X11/Xdmcp.h>
+#include <inttypes.h>
+
+/* Test what happens if you try to allocate an array with too many entries */
+#define TestAllocOversize(type, len) {                          \
+    type newArray = { -1, (void *) -1 };                        \
+    int result;                                                 \
+    printf("Checking XdmcpAlloc%s(%d)...\n", #type, len);       \
+    result = XdmcpAlloc##type(&newArray, len)    ;              \
+    assert(result == FALSE);                                    \
+    assert(newArray.length == 0);                               \
+    assert(newArray.data == NULL);                              \
+    printf("Checking XdmcpRealloc%s(%d)...\n", #type, len);     \
+    result = XdmcpRealloc##type(&newArray, len);                \
+    assert(result == FALSE);                                    \
+    assert(newArray.length == 0);                               \
+    assert(newArray.data == NULL);                              \
+    XdmcpDispose##type(&newArray);                              \
+}
+
+static void
+TestAllocOversizeArrays(void)
+{
+    TestAllocOversize(ARRAY8, UINT16_MAX + 1);
+    TestAllocOversize(ARRAY16, UINT8_MAX + 1);
+    TestAllocOversize(ARRAY32, UINT8_MAX + 1);
+    TestAllocOversize(ARRAYofARRAY8, UINT8_MAX + 1);
+    TestAllocOversize(ARRAY8, -1);
+    TestAllocOversize(ARRAY16, -1);
+    TestAllocOversize(ARRAY32, -1);
+    TestAllocOversize(ARRAYofARRAY8, -1);
+}
+
+static void
+TestZeroFillARRAYofARRAY8(void)
+{
+    ARRAYofARRAY8 aa;
+    int result;
+    char *noise;
+
+    printf("Checking XdmcpAllocARRAYofARRAY8 zero fills array...\n");
+    /* prefill memory with junk - hopefully next malloc will pick up some */
+    noise = malloc(32 * sizeof(ARRAY8));
+    memset(noise, 0xdeadbeef, 32 * sizeof(ARRAY8));
+    free(noise);
+    result = XdmcpAllocARRAYofARRAY8(&aa, 32);
+    assert(result == TRUE);
+    assert(aa.length == 32);
+    assert(aa.data[4].data == NULL);
+    printf("Checking XdmcpReallocARRAYofARRAY8 zero fills array...\n");
+    result = XdmcpAllocARRAYofARRAY8(&aa, 48);
+    assert(result == TRUE);
+    assert(aa.length == 48);
+    assert(aa.data[40].data == NULL);
+    XdmcpDisposeARRAYofARRAY8(&aa);
+}
+
+int
+main(int argc, char **argv)
+{
+    TestAllocOversizeArrays();
+    TestZeroFillARRAYofARRAY8();
+
+    exit(0);
+}