iconv/tst-iconv5.c

   1 /* Copyright (C) 2004-2015 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    <http://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 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 int number = (int) sizeof (testcode) / sizeof (struct convcode);
  51
  52 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           return -1;
  76         }
  77     }
  78
  79   ret = iconv_close (ic);
  80   if (ret == -1)
  81     {
  82       printf ("iconv_close failed: from: %s, to: %s: %s",
  83               fromcode, tocode, strerror (errno));
  84       return -1;
  85     }
  86
  87   return outbytesleft - outbytes;
  88 }
  89
  90
  91 int
  92 test_unalign (struct convcode *codes, char *str, int len)
  93 {
  94   struct unalign *inbufp, *outbufp;
  95   char *inbuf, *outbuf;
  96   size_t inbytesleft, outbytesleft;
  97   int retlen;
  98
  99   /* allocating unaligned buffer for both inbuf and outbuf */
 100   inbufp = (struct unalign *) malloc (sizeof (struct unalign));
 101   if (!inbufp)
 102     {
 103       printf ("no memory available\n");
 104       exit (1);
 105     }
 106   inbuf = inbufp->str2;
 107
 108   outbufp = (struct unalign *) malloc (sizeof (struct unalign));
 109   if (!outbufp)
 110     {
 111       printf ("no memory available\n");
 112       exit (1);
 113     }
 114   outbuf = outbufp->str2;
 115
 116   /* first iconv phase */
 117   memcpy (inbuf, str, len);
 118   inbytesleft = len;
 119   outbytesleft = sizeof (struct unalign);
 120   retlen = convert (codes->tocode, codes->fromcode, inbuf, inbytesleft,
 121                     outbuf, outbytesleft);
 122   if (retlen == -1)     /* failed */
 123     return 1;
 124
 125   /* second round trip iconv phase */
 126   memcpy (inbuf, outbuf, retlen);
 127   inbytesleft = retlen;
 128   outbytesleft = sizeof (struct unalign);
 129   retlen = convert (codes->fromcode, codes->tocode, inbuf, inbytesleft,
 130                     outbuf, outbytesleft);
 131   if (retlen == -1)     /* failed */
 132     return 1;
 133
 134   free (inbufp);
 135   free (outbufp);
 136
 137   return 0;
 138 }
 139
 140 int
 141 main (int argc, char *argv[])
 142 {
 143   int i;
 144   int ret = 0;
 145
 146   for (i = 0; i < number; i++)
 147     {
 148       ret = test_unalign (&testcode[i], (char *) SAMPLESTR, sizeof (SAMPLESTR));
 149       if (ret)
 150         break;
 151       printf ("iconv: %s <-> %s: ok\n",
 152               testcode[i].fromcode, testcode[i].tocode);
 153     }
 154   printf ("Succeeded.\n");
 155
 156   return ret;
 157 }