iconv/tst-iconv5.c

   1 /* Copyright (C) 2004-2021 Free Software Foundation, Inc.
   2    This file is part of the GNU C Library.
   3    Contributed by GOTO Masanori <gotom@debian.or.jp>, 2004
   4
   5    The GNU C Library is free software; you can redistribute it and/or
   6    modify it under the terms of the GNU Lesser General Public
   7    License as published by the Free Software Foundation; either
   8    version 2.1 of the License, or (at your option) any later version.
   9
  10    The GNU C Library is distributed in the hope that it will be useful,
  11    but WITHOUT ANY WARRANTY; without even the implied warranty of
  12    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  13    Lesser General Public License for more details.
  14
  15    You should have received a copy of the GNU Lesser General Public
  16    License along with the GNU C Library; if not, see
  17    <https://www.gnu.org/licenses/>.  */
  18
  19 #include <iconv.h>
  20 #include <string.h>
  21 #include <stdlib.h>
  22 #include <stdio.h>
  23 #include <errno.h>
  24
  25 #define SIZE 256                /* enough room for conversion */
  26 #define SAMPLESTR "abc"
  27
  28 struct unalign
  29 {
  30   char str1[1];
  31   char str2[SIZE];
  32 };
  33
  34 struct convcode
  35 {
  36   const char *tocode;
  37   const char *fromcode;
  38 };
  39
  40 /* test builtin transformation */
  41 static const struct convcode testcode[] = {
  42   {"ASCII", "ASCII"},
  43   {"UTF-8", "ASCII"},
  44   {"UCS-2BE", "ASCII"},
  45   {"UCS-2LE", "ASCII"},
  46   {"UCS-4BE", "ASCII"},
  47   {"UCS-4LE", "ASCII"},
  48 };
  49
  50 static const int number = (int) sizeof (testcode) / sizeof (struct convcode);
  51
  52 static int
  53 convert (const char *tocode, const char *fromcode, char *inbufp,
  54          size_t inbytesleft, char *outbufp, size_t outbytesleft)
  55 {
  56   iconv_t *ic;
  57   size_t outbytes = outbytesleft;
  58   int ret;
  59
  60   ic = iconv_open (tocode, fromcode);
  61   if (ic == (iconv_t *) - 1)
  62     {
  63       printf ("iconv_open failed: from: %s, to: %s: %s",
  64               fromcode, tocode, strerror (errno));
  65       return -1;
  66     }
  67
  68   while (inbytesleft > 0)
  69     {
  70       ret = iconv (ic, &inbufp, &inbytesleft, &outbufp, &outbytes);
  71       if (ret == -1)
  72         {
  73           printf ("iconv failed: from: %s, to: %s: %s",
  74                   fromcode, tocode, strerror (errno));
  75           iconv_close (ic);
  76           return -1;
  77         }
  78     }
  79
  80   ret = iconv_close (ic);
  81   if (ret == -1)
  82     {
  83       printf ("iconv_close failed: from: %s, to: %s: %s",
  84               fromcode, tocode, strerror (errno));
  85       return -1;
  86     }
  87
  88   return outbytesleft - outbytes;
  89 }
  90
  91
  92 static int
  93 test_unalign (const struct convcode *codes, const char *str, int len)
  94 {
  95   struct unalign *inbufp, *outbufp;
  96   char *inbuf, *outbuf;
  97   size_t inbytesleft, outbytesleft;
  98   int retlen;
  99
 100   /* allocating unaligned buffer for both inbuf and outbuf */
 101   inbufp = (struct unalign *) malloc (sizeof (struct unalign));
 102   if (!inbufp)
 103     {
 104       printf ("no memory available\n");
 105       exit (1);
 106     }
 107   inbuf = inbufp->str2;
 108
 109   outbufp = (struct unalign *) malloc (sizeof (struct unalign));
 110   if (!outbufp)
 111     {
 112       printf ("no memory available\n");
 113       exit (1);
 114     }
 115   outbuf = outbufp->str2;
 116
 117   /* first iconv phase */
 118   memcpy (inbuf, str, len);
 119   inbytesleft = len;
 120   outbytesleft = sizeof (struct unalign);
 121   retlen = convert (codes->tocode, codes->fromcode, inbuf, inbytesleft,
 122                     outbuf, outbytesleft);
 123   if (retlen == -1)     /* failed */
 124     return 1;
 125
 126   /* second round trip iconv phase */
 127   memcpy (inbuf, outbuf, retlen);
 128   inbytesleft = retlen;
 129   outbytesleft = sizeof (struct unalign);
 130   retlen = convert (codes->fromcode, codes->tocode, inbuf, inbytesleft,
 131                     outbuf, outbytesleft);
 132   if (retlen == -1)     /* failed */
 133     return 1;
 134
 135   free (inbufp);
 136   free (outbufp);
 137
 138   return 0;
 139 }
 140
 141 static int
 142 do_test (void)
 143 {
 144   int i;
 145   int ret = 0;
 146
 147   for (i = 0; i < number; i++)
 148     {
 149       ret = test_unalign (&testcode[i], (char *) SAMPLESTR, sizeof (SAMPLESTR));
 150       if (ret)
 151         break;
 152       printf ("iconv: %s <-> %s: ok\n",
 153               testcode[i].fromcode, testcode[i].tocode);
 154     }
 155   if (ret == 0)
 156     printf ("Succeeded.\n");
 157
 158   return ret;
 159 }
 160
 161 #define TEST_FUNCTION do_test ()
 162 #include "../test-skeleton.c"