posix/tst-sysconf.c

   1 #include <stdbool.h>
   2 #include <stdio.h>
   3 #include <unistd.h>
   4
   5 static struct
   6 {
   7   long int _P_val;
   8   const char *name;
   9   int _SC_val;
  10   bool positive;
  11   bool posix2;
  12 } posix_options[] =
  13   {
  14 #define N_(name, pos) { _POSIX_##name, #name, _SC_##name, pos, false }
  15 #define NP(name) N_ (name, true)
  16 #define N(name) N_ (name, false)
  17 #define N2(name) { _POSIX2_##name, #name, _SC_2_##name, false, true }
  18     N (ADVISORY_INFO),
  19     N (ASYNCHRONOUS_IO),
  20     N (BARRIERS),
  21     N (CLOCK_SELECTION),
  22     N (CPUTIME),
  23     N (FSYNC),
  24     N (IPV6),
  25     NP (JOB_CONTROL),
  26     N (MAPPED_FILES),
  27     N (MEMLOCK),
  28     N (MEMLOCK_RANGE),
  29     N (MEMORY_PROTECTION),
  30     N (MESSAGE_PASSING),
  31     N (MONOTONIC_CLOCK),
  32     N (PRIORITIZED_IO),
  33     N (PRIORITY_SCHEDULING),
  34     N (RAW_SOCKETS),
  35     N (READER_WRITER_LOCKS),
  36     N (REALTIME_SIGNALS),
  37     NP (REGEXP),
  38     NP (SAVED_IDS),
  39     N (SEMAPHORES),
  40     N (SHARED_MEMORY_OBJECTS),
  41     NP (SHELL),
  42     N (SPAWN),
  43     N (SPIN_LOCKS),
  44     N (SPORADIC_SERVER),
  45     N (SYNCHRONIZED_IO),
  46     N (THREAD_ATTR_STACKADDR),
  47     N (THREAD_ATTR_STACKSIZE),
  48     N (THREAD_CPUTIME),
  49     N (THREAD_PRIO_INHERIT),
  50     N (THREAD_PRIO_PROTECT),
  51     N (THREAD_PRIORITY_SCHEDULING),
  52     N (THREAD_PROCESS_SHARED),
  53     N (THREAD_SAFE_FUNCTIONS),
  54     N (THREAD_SPORADIC_SERVER),
  55     N (THREADS),
  56     N (TIMEOUTS),
  57     N (TIMERS),
  58     N (TRACE),
  59     N (TRACE_EVENT_FILTER),
  60     N (TRACE_INHERIT),
  61     N (TRACE_LOG),
  62     N (TYPED_MEMORY_OBJECTS),
  63     N2 (C_BIND),
  64     N2 (C_DEV),
  65     N2 (CHAR_TERM)
  66   };
  67 #define nposix_options (sizeof (posix_options) / sizeof (posix_options[0]))
  68
  69 static int
  70 do_test (void)
  71 {
  72   int result = 0;
  73
  74   for (int i = 0; i < nposix_options; ++i)
  75     {
  76       long int scret = sysconf (posix_options[i]._SC_val);
  77
  78       if (scret == 0)
  79         {
  80           printf ("sysconf(_SC_%s%s) returned zero\n",
  81                   posix_options[i].posix2 ? "2_" : "", posix_options[i].name);
  82           result = 1;
  83         }
  84       if (posix_options[i]._P_val != 0 && posix_options[i]._P_val != scret)
  85         {
  86           printf ("sysconf(_SC_%s%s) = %ld does not match _POSIX%s_%s = %ld\n",
  87                   posix_options[i].posix2 ? "2_" : "", posix_options[i].name,
  88                   scret,
  89                   posix_options[i].posix2 ? "2" : "", posix_options[i].name,
  90                   posix_options[i]._P_val);
  91           result = 1;
  92         }
  93       else if (posix_options[i].positive && scret < 0)
  94         {
  95           printf ("sysconf(_SC_%s%s) must be > 0\n",
  96                   posix_options[i].posix2 ? "2_" : "", posix_options[i].name);
  97           result = 1;
  98         }
  99
 100 #define STDVER 200112L
 101       if (scret > 0 && scret != STDVER && !posix_options[i].positive)
 102         {
 103           printf ("sysconf(_SC_%s%s) must be %ldL\n",
 104                   posix_options[i].posix2 ? "2_" : "", posix_options[i].name,
 105                   STDVER);
 106           result = 1;
 107         }
 108     }
 109
 110   return result;
 111 }
 112
 113 #define TEST_FUNCTION do_test ()
 114 #include "../test-skeleton.c"