elf/tst-dl-printf-static.c

   1 /* Check _dl_debug_vdprintf.
   2    Copyright The GNU Toolchain Authors.
   3    This file is part of the GNU C Library.
   4
   5    The GNU C Library is free software; you can redistribute it and/or
   6    modify it under the terms of the GNU Lesser General Public
   7    License as published by the Free Software Foundation; either
   8    version 2.1 of the License, or (at your option) any later version.
   9
  10    The GNU C Library is distributed in the hope that it will be useful,
  11    but WITHOUT ANY WARRANTY; without even the implied warranty of
  12    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  13    Lesser General Public License for more details.
  14
  15    You should have received a copy of the GNU Lesser General Public
  16    License along with the GNU C Library; if not, see
  17    <https://www.gnu.org/licenses/>.  */
  18
  19 #include <ldsodefs.h>
  20 #include <limits.h>
  21 #include <stdarg.h>
  22 #include <stdio.h>
  23 #include <support/check.h>
  24 #include <support/xunistd.h>
  25
  26 #define BUFSZ 64
  27
  28 #define TEST(fmt, ...)                                                        \
  29   do                                                                          \
  30     {                                                                         \
  31       char str1[BUFSZ], str2[BUFSZ];                                          \
  32       int len1 = snprintf (str1, BUFSZ, fmt, __VA_ARGS__);                    \
  33       TEST_VERIFY_EXIT (len1 >= 0);                                           \
  34       TEST_VERIFY_EXIT (len1 < BUFSZ);                                        \
  35       _dl_dprintf (fds[1], fmt, __VA_ARGS__);                                 \
  36       ssize_t len2 = read (fds[0], str2, BUFSZ);                              \
  37       TEST_VERIFY_EXIT (len2 >= 0);                                           \
  38       TEST_VERIFY_EXIT (len2 < BUFSZ);                                        \
  39       str2[len2] = '\0';                                                      \
  40       TEST_COMPARE_STRING (str1, str2);                                       \
  41     }                                                                         \
  42   while (0)
  43
  44 static int
  45 do_test (void)
  46 {
  47   int fds[2];
  48   xpipe (fds);
  49   TEST ("%d", 0);
  50   TEST ("%d", 1);
  51   TEST ("%d", INT_MAX);
  52   TEST ("%d", -1);
  53   TEST ("%d", INT_MIN + 1);
  54   TEST ("%d", INT_MIN);
  55   TEST ("%u", 0U);
  56   TEST ("%u", 1U);
  57   TEST ("%u", UINT_MAX);
  58   TEST ("%x", 0);
  59   TEST ("%x", 1);
  60   TEST ("%x", UINT_MAX);
  61   TEST ("%ld", 0L);
  62   TEST ("%ld", 1L);
  63   TEST ("%ld", LONG_MAX);
  64   TEST ("%ld", -1L);
  65   TEST ("%ld", LONG_MIN + 1);
  66   TEST ("%ld", LONG_MIN);
  67   TEST ("%lu", 0UL);
  68   TEST ("%lu", 1UL);
  69   TEST ("%lu", ULONG_MAX);
  70   TEST ("%lx", 0UL);
  71   TEST ("%lx", 1UL);
  72   TEST ("%lx", ULONG_MAX);
  73   xclose (fds[0]);
  74   xclose (fds[1]);
  75   return 0;
  76 }
  77
  78 #include <support/test-driver.c>