signal/tst-sigsimple.c

   1 /* Copyright (C) 2003-2022 Free Software Foundation, Inc.
   2    This file is part of the GNU C Library.
   3
   4    The GNU C Library is free software; you can redistribute it and/or
   5    modify it under the terms of the GNU Lesser General Public
   6    License as published by the Free Software Foundation; either
   7    version 2.1 of the License, or (at your option) any later version.
   8
   9    The GNU C Library is distributed in the hope that it will be useful,
  10    but WITHOUT ANY WARRANTY; without even the implied warranty of
  11    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  12    Lesser General Public License for more details.
  13
  14    You should have received a copy of the GNU Lesser General Public
  15    License along with the GNU C Library; if not, see
  16    <https://www.gnu.org/licenses/>.  */
  17
  18 #include <errno.h>
  19 #include <signal.h>
  20 #include <stdio.h>
  21 #include <string.h>
  22 #include <libc-diag.h>
  23
  24 /* The sighold and sigrelse functions are deprecated.  */
  25 DIAG_IGNORE_NEEDS_COMMENT (4.9, "-Wdeprecated-declarations");
  26
  27 static int
  28 do_test (void)
  29 {
  30   int result = 0;
  31   int e;
  32
  33 #define RUN(test) \
  34   errno = 0;                                                                  \
  35   e = test;                                                                   \
  36   if (e != -1)                                                                \
  37     {                                                                         \
  38       printf ("%s returned %d\n", #test, e);                                  \
  39       result = 1;                                                             \
  40     }                                                                         \
  41   else if (errno != EINVAL)                                                   \
  42     {                                                                         \
  43       printf ("%s didn't set errno to EINVAL (%s instead)\n",                 \
  44               #test, strerror (errno));                                       \
  45       result = 1;                                                             \
  46     }
  47
  48   RUN (sighold (-1));
  49   RUN (sighold (_NSIG + 100));
  50
  51   RUN (sigrelse (-1));
  52   RUN (sigrelse (_NSIG + 100));
  53
  54   return result;
  55 }
  56
  57 #define TEST_FUNCTION do_test ()
  58 #include "../test-skeleton.c"