root/maint/gnulib/tests/test-fprintf-posix2.c

/* */

DEFINITIONS

1. main
2. main

   1 /* Test of POSIX compatible fprintf() function.
   2    Copyright (C) 2007, 2009-2021 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 #include "qemu.h"
  36 
  37 int
  38 main (int argc, char *argv[])
     /*  */
  39 {
  40   struct rlimit limit;
  41   int arg;
  42   int ret;
  43 
  44   if (is_running_under_qemu_user ())
  45     return 77;
  46 
  47   /* Some printf implementations allocate temporary space with malloc.  */
  48   /* On BSD systems, malloc() is limited by RLIMIT_DATA.  */
  49 #ifdef RLIMIT_DATA
  50   if (getrlimit (RLIMIT_DATA, &limit) < 0)
  51     return 77;
  52   if (limit.rlim_max == RLIM_INFINITY || limit.rlim_max > 10000000)
  53     limit.rlim_max = 10000000;
  54   limit.rlim_cur = limit.rlim_max;
  55   if (setrlimit (RLIMIT_DATA, &limit) < 0)
  56     return 77;
  57 #endif
  58   /* On Linux systems, malloc() is limited by RLIMIT_AS.  */
  59 #ifdef RLIMIT_AS
  60   if (getrlimit (RLIMIT_AS, &limit) < 0)
  61     return 77;
  62   if (limit.rlim_max == RLIM_INFINITY || limit.rlim_max > 10000000)
  63     limit.rlim_max = 10000000;
  64   limit.rlim_cur = limit.rlim_max;
  65   if (setrlimit (RLIMIT_AS, &limit) < 0)
  66     return 77;
  67 #endif
  68   /* Some printf implementations allocate temporary space on the stack.  */
  69 #ifdef RLIMIT_STACK
  70   if (getrlimit (RLIMIT_STACK, &limit) < 0)
  71     return 77;
  72   if (limit.rlim_max == RLIM_INFINITY || limit.rlim_max > 10000000)
  73     limit.rlim_max = 10000000;
  74   limit.rlim_cur = limit.rlim_max;
  75   if (setrlimit (RLIMIT_STACK, &limit) < 0)
  76     return 77;
  77 #endif
  78 
  79   arg = atoi (argv[1]);
  80   switch (arg)
  81     {
  82     case 0:
  83       {
  84         void *memory = malloc (10000000);
  85         if (memory == NULL)
  86           return 1;
  87         memset (memory, 17, 10000000);
  88         return 78;
  89       }
  90     case 1:
  91       ret = fprintf (stdout, "%.10000000f", 1.0);
  92       return !(ret == 10000002 || (ret < 0 && errno == ENOMEM));
  93     case 2:
  94       ret = fprintf (stdout, "%.10000000f", -1.0);
  95       return !(ret == 10000003 || (ret < 0 && errno == ENOMEM));
  96     case 3:
  97       ret = fprintf (stdout, "%.10000000e", 1.0);
  98       return !(ret >= 10000006 || (ret < 0 && errno == ENOMEM));
  99     case 4:
 100       ret = fprintf (stdout, "%.10000000d", 1);
 101       return !(ret == 10000000 || (ret < 0 && errno == ENOMEM));
 102     case 5:
 103       ret = fprintf (stdout, "%.10000000d", -1);
 104       return !(ret == 10000001 || (ret < 0 && errno == ENOMEM));
 105     case 6:
 106       ret = fprintf (stdout, "%.10000000u", 1);
 107       return !(ret == 10000000 || (ret < 0 && errno == ENOMEM));
 108     }
 109   return 0;
 110 }
 111 
 112 #else
 113 
 114 int
 115 main (int argc, char *argv[])
     /*  */
 116 {
 117   return 77;
 118 }
 119 
 120 #endif

/* */