resource/tst-getrlimit.c

   1 #include <errno.h>
   2 #include <stdbool.h>
   3 #include <stdio.h>
   4 #include <sys/resource.h>
   5
   6
   7 static struct
   8 {
   9   const char *name;
  10   int resource;
  11   bool required;
  12 } tests[] =
  13   {
  14     /* The following 7 limits are part of POSIX and must exist.  */
  15     { "RLIMIT_CORE", RLIMIT_CORE, true },
  16     { "RLIMIT_CPU", RLIMIT_CPU, true },
  17     { "RLIMIT_DATA", RLIMIT_DATA, true },
  18     { "RLIMIT_FSIZE", RLIMIT_FSIZE, true },
  19     { "RLIMIT_NOFILE", RLIMIT_NOFILE, true },
  20     { "RLIMIT_STACK", RLIMIT_STACK, true },
  21     { "RLIMIT_AS", RLIMIT_AS, true },
  22     /* The following are traditional Unix limits which are also
  23        expected (by us).  */
  24     { "RLIMIT_RSS", RLIMIT_RSS, true },
  25     { "RLIMIT_NPROC", RLIMIT_NPROC, true },
  26     /* The following are extensions.  */
  27 #ifdef RLIMIT_MEMLOCK
  28     { "RLIMIT_MEMLOCK", RLIMIT_MEMLOCK, false },
  29 #endif
  30 #ifdef RLIMIT_LOCKS
  31     { "RLIMIT_LOCKS", RLIMIT_LOCKS, false },
  32 #endif
  33 #ifdef RLIMIT_SIGPENDING
  34     { "RLIMIT_SIGPENDING", RLIMIT_SIGPENDING, false },
  35 #endif
  36 #ifdef RLIMIT_MSGQUEUE
  37     { "RLIMIT_MSGQUEUE", RLIMIT_MSGQUEUE, false },
  38 #endif
  39 #ifdef RLIMIT_NICE
  40     { "RLIMIT_NICE", RLIMIT_NICE, false },
  41 #endif
  42 #ifdef RLIMIT_RTPRIO
  43     { "RLIMIT_RTPRIO", RLIMIT_RTPRIO, false },
  44 #endif
  45   };
  46 #define ntests (sizeof (tests) / sizeof (tests[0]))
  47
  48
  49 static int
  50 do_test (void)
  51 {
  52   int status = 0;
  53
  54   for (int i = 0; i < ntests; ++i)
  55     {
  56       bool this_ok = true;
  57
  58       struct rlimit r;
  59       int res = getrlimit (tests[i].resource, &r);
  60       if (res == -1)
  61         {
  62           if (errno == EINVAL)
  63             {
  64               if (tests[i].required)
  65                 {
  66                   printf ("limit %s expectedly not available for getrlimit\n",
  67                           tests[i].name);
  68                   status = 1;
  69                   this_ok = false;
  70                 }
  71             }
  72           else
  73             {
  74               printf ("getrlimit for %s returned unexpected error: %m\n",
  75                       tests[i].name);
  76               status = 1;
  77               this_ok = false;
  78             }
  79         }
  80
  81       struct rlimit64 r64;
  82       res = getrlimit64 (tests[i].resource, &r64);
  83       if (res == -1)
  84         {
  85           if (errno == EINVAL)
  86             {
  87               if (tests[i].required)
  88                 {
  89                   printf ("limit %s expectedly not available for getrlimit64"
  90                           "\n", tests[i].name);
  91                   status = 1;
  92                   this_ok = false;
  93                 }
  94             }
  95           else
  96             {
  97               printf ("getrlimit64 for %s returned unexpected error: %m\n",
  98                       tests[i].name);
  99               status = 1;
 100               this_ok = false;
 101             }
 102         }
 103
 104       if (this_ok)
 105         printf ("limit %s OK\n", tests[i].name);
 106     }
 107
 108   return status;
 109 }
 110
 111 #define TEST_FUNCTION do_test ()
 112 #include "../test-skeleton.c"