iconv/tst-iconv2.c

   1 /* Copyright (C) 2001-2023 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 <iconv.h>
  20 #include <mcheck.h>
  21 #include <stddef.h>
  22 #include <stdio.h>
  23 #include <stdlib.h>
  24 #include <string.h>
  25
  26
  27 static int
  28 do_test (void)
  29 {
  30   char buf[3];
  31   const wchar_t wc[1] = L"a";
  32   iconv_t cd;
  33   char *inptr;
  34   size_t inlen;
  35   char *outptr;
  36   size_t outlen;
  37   size_t n;
  38   int e;
  39   int result = 0;
  40
  41   mtrace ();
  42
  43   cd = iconv_open ("UCS4", "WCHAR_T");
  44   if (cd == (iconv_t) -1)
  45     {
  46       printf ("cannot convert from wchar_t to UCS4: %m\n");
  47       exit (1);
  48     }
  49
  50   inptr = (char *) wc;
  51   inlen = sizeof (wchar_t);
  52   outptr = buf;
  53   outlen = 3;
  54
  55   n = iconv (cd, &inptr, &inlen, &outptr, &outlen);
  56   e = errno;
  57
  58   if (n != (size_t) -1)
  59     {
  60       printf ("incorrect iconv() return value: %zd, expected -1\n", n);
  61       result = 1;
  62     }
  63
  64   if (e != E2BIG)
  65     {
  66       printf ("incorrect error value: %s, expected %s\n",
  67               strerror (e), strerror (E2BIG));
  68       result = 1;
  69     }
  70
  71   if (inptr != (char *) wc)
  72     {
  73       puts ("inptr changed");
  74       result = 1;
  75     }
  76
  77   if (inlen != sizeof (wchar_t))
  78     {
  79       puts ("inlen changed");
  80       result = 1;
  81     }
  82
  83   if (outptr != buf)
  84     {
  85       puts ("outptr changed");
  86       result = 1;
  87     }
  88
  89   if (outlen != 3)
  90     {
  91       puts ("outlen changed");
  92       result = 1;
  93     }
  94
  95   iconv_close (cd);
  96
  97   return result;
  98 }
  99
 100 #define TEST_FUNCTION do_test ()
 101 #include "../test-skeleton.c"