test/string.c

   1 /*
   2  * Copyright (c) 2011, Oracle and/or its affiliates. All rights reserved.
   3  *
   4  * Permission is hereby granted, free of charge, to any person obtaining a
   5  * copy of this software and associated documentation files (the "Software"),
   6  * to deal in the Software without restriction, including without limitation
   7  * the rights to use, copy, modify, merge, publish, distribute, sublicense,
   8  * and/or sell copies of the Software, and to permit persons to whom the
   9  * Software is furnished to do so, subject to the following conditions:
  10  *
  11  * The above copyright notice and this permission notice (including the next
  12  * paragraph) shall be included in all copies or substantial portions of the
  13  * Software.
  14  *
  15  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  16  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  17  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
  18  * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
  19  * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
  20  * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
  21  * DEALINGS IN THE SOFTWARE.
  22  */
  23
  24 /**
  25  * Tests for fallback implementations of string handling routines
  26  * provided in os/ subdirectory for some platforms.
  27  */
  28
  29 #ifdef HAVE_DIX_CONFIG_H
  30 #include <dix-config.h>
  31 #endif
  32
  33 #include <assert.h>
  34 #include "os.h"
  35
  36 /* Ensure we're testing our functions, even on platforms with libc versions */
  37 #include <string.h>
  38 #undef strndup
  39 #define strndup my_strndup
  40 char *strndup(const char *str, size_t n);
  41
  42 #include "../os/strndup.c"
  43
  44 static void
  45 strndup_checks(void)
  46 {
  47     const char *sample = "0123456789abcdef";
  48     char *allofit;
  49
  50     char *firsthalf = strndup(sample, 8);
  51     char *secondhalf = strndup(sample + 8, 8);
  52
  53     assert(strcmp(firsthalf, "01234567") == 0);
  54     assert(strcmp(secondhalf, "89abcdef") == 0);
  55
  56     free(firsthalf);
  57     free(secondhalf);
  58
  59     allofit = strndup(sample, 20);
  60     assert(strcmp(allofit, sample) == 0);
  61     free(allofit);
  62 }
  63
  64 int
  65 main(int argc, char **argv)
  66 {
  67     strndup_checks();
  68
  69     return 0;
  70 }