1  /* Test for the long double variants of *syslog* functions.
       2     Copyright (C) 2019-2023 Free Software Foundation, Inc.
       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 <stdarg.h>
      20  #include <stddef.h>
      21  #include <syslog.h>
      22  
      23  #include <support/capture_subprocess.h>
      24  #include <support/check.h>
      25  
      26  static void
      27  do_test_one_call (void *last, ...)
      28  {
      29    long double ld = -1;
      30    va_list ap;
      31  
      32    /* Make syslog functions write to stderr with LOG_PERROR, so that it
      33       can be captured by support_capture_subprocess and verified.  */
      34    openlog ("test-syslog", LOG_PERROR, LOG_USER);
      35  
      36    /* Call syslog functions that take a format string.  */
      37    SYSLOG_FUNCTION SYSLOG_FUNCTION_PARAMS;
      38    va_start (ap, last);
      39    VSYSLOG_FUNCTION VSYSLOG_FUNCTION_PARAMS;
      40    va_end (ap);
      41  }
      42  
      43  static void
      44  do_test_call (void)
      45  {
      46    long double ld = -1;
      47    do_test_one_call (NULL, ld);
      48  }
      49  
      50  static int
      51  do_test (void)
      52  {
      53    struct support_capture_subprocess result;
      54    result = support_capture_subprocess ((void *) &do_test_call, NULL);
      55  
      56    do_test_call ();
      57  
      58    /* Compare against the expected output.  */
      59    const char *expected =
      60      "test-syslog: -1.000000\n"
      61      "test-syslog: -1.000000\n";
      62    TEST_COMPARE_STRING (expected, result.err.buffer);
      63  
      64    return 0;
      65  }
      66  
      67  #include <support/test-driver.c>