tests/test-fprintf-posix2.c

   1 /* Test of POSIX compatible fprintf() function.
   2    Copyright (C) 2007, 2009-2020 Free Software Foundation, Inc.
   3
   4    This program is free software: you can redistribute it and/or modify
   5    it under the terms of the GNU General Public License as published by
   6    the Free Software Foundation; either version 3 of the License, or
   7    (at your option) any later version.
   8
   9    This program 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
  12    GNU General Public License for more details.
  13
  14    You should have received a copy of the GNU General Public License
  15    along with this program.  If not, see <https://www.gnu.org/licenses/>.  */
  16
  17 /* Written by Bruno Haible <bruno@clisp.org>, 2007.  */
  18
  19 #include <config.h>
  20
  21 #include <stdio.h>
  22
  23 /* This test assumes getrlimit() and setrlimit().
  24    With "gcc -fcheck-pointer-bounds -mmpx -static", it produces an
  25    endless loop of "Saw a #BR!" messages.  */
  26 #if HAVE_GETRLIMIT && HAVE_SETRLIMIT && !defined __CHKP__
  27
  28 #include <stdlib.h>
  29 #include <sys/types.h>
  30 #include <sys/time.h>
  31 #include <sys/resource.h>
  32 #include <string.h>
  33 #include <errno.h>
  34
  35 int
  36 main (int argc, char *argv[])
  37 {
  38   struct rlimit limit;
  39   int arg;
  40   int ret;
  41
  42   /* Some printf implementations allocate temporary space with malloc.  */
  43   /* On BSD systems, malloc() is limited by RLIMIT_DATA.  */
  44 #ifdef RLIMIT_DATA
  45   if (getrlimit (RLIMIT_DATA, &limit) < 0)
  46     return 77;
  47   if (limit.rlim_max == RLIM_INFINITY || limit.rlim_max > 10000000)
  48     limit.rlim_max = 10000000;
  49   limit.rlim_cur = limit.rlim_max;
  50   if (setrlimit (RLIMIT_DATA, &limit) < 0)
  51     return 77;
  52 #endif
  53   /* On Linux systems, malloc() is limited by RLIMIT_AS.  */
  54 #ifdef RLIMIT_AS
  55   if (getrlimit (RLIMIT_AS, &limit) < 0)
  56     return 77;
  57   if (limit.rlim_max == RLIM_INFINITY || limit.rlim_max > 10000000)
  58     limit.rlim_max = 10000000;
  59   limit.rlim_cur = limit.rlim_max;
  60   if (setrlimit (RLIMIT_AS, &limit) < 0)
  61     return 77;
  62 #endif
  63   /* Some printf implementations allocate temporary space on the stack.  */
  64 #ifdef RLIMIT_STACK
  65   if (getrlimit (RLIMIT_STACK, &limit) < 0)
  66     return 77;
  67   if (limit.rlim_max == RLIM_INFINITY || limit.rlim_max > 10000000)
  68     limit.rlim_max = 10000000;
  69   limit.rlim_cur = limit.rlim_max;
  70   if (setrlimit (RLIMIT_STACK, &limit) < 0)
  71     return 77;
  72 #endif
  73
  74   arg = atoi (argv[1]);
  75   switch (arg)
  76     {
  77     case 0:
  78       {
  79         void *memory = malloc (10000000);
  80         if (memory == NULL)
  81           return 1;
  82         memset (memory, 17, 10000000);
  83         return 78;
  84       }
  85     case 1:
  86       ret = fprintf (stdout, "%.10000000f", 1.0);
  87       return !(ret == 10000002 || (ret < 0 && errno == ENOMEM));
  88     case 2:
  89       ret = fprintf (stdout, "%.10000000f", -1.0);
  90       return !(ret == 10000003 || (ret < 0 && errno == ENOMEM));
  91     case 3:
  92       ret = fprintf (stdout, "%.10000000e", 1.0);
  93       return !(ret >= 10000006 || (ret < 0 && errno == ENOMEM));
  94     case 4:
  95       ret = fprintf (stdout, "%.10000000d", 1);
  96       return !(ret == 10000000 || (ret < 0 && errno == ENOMEM));
  97     case 5:
  98       ret = fprintf (stdout, "%.10000000d", -1);
  99       return !(ret == 10000001 || (ret < 0 && errno == ENOMEM));
 100     case 6:
 101       ret = fprintf (stdout, "%.10000000u", 1);
 102       return !(ret == 10000000 || (ret < 0 && errno == ENOMEM));
 103     }
 104   return 0;
 105 }
 106
 107 #else
 108
 109 int
 110 main (int argc, char *argv[])
 111 {
 112   return 77;
 113 }
 114
 115 #endif