example.c

   1 /* example.c    Example code showing how to use stringprep().
   2  * Copyright (C) 2002, 2003  Simon Josefsson
   3  *
   4  * This file is part of GNU Libidn.
   5  *
   6  * GNU Libidn is free software; you can redistribute it and/or
   7  * modify it under the terms of the GNU Lesser General Public
   8  * License as published by the Free Software Foundation; either
   9  * version 2.1 of the License, or (at your option) any later version.
  10  *
  11  * GNU Libidn is distributed in the hope that it will be useful,
  12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  14  * Lesser General Public License for more details.
  15  *
  16  * You should have received a copy of the GNU Lesser General Public
  17  * License along with GNU Libidn; if not, write to the Free Software
  18  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
  19  *
  20  */
  21
  22 #include <stdio.h>
  23 #include <stdlib.h>
  24 #include <string.h>
  25 #include <stringprep.h>
  26
  27 /*
  28  * Compiling using libtool and pkg-config is recommended:
  29  *
  30  * $ libtool cc -o example example.c `pkg-config --cflags --libs libidn`
  31  * $ ./example
  32  * Input string encoded as `ISO-8859-1': ª
  33  * Before locale2utf8 (length 2): aa 0a
  34  * Before stringprep (length 3): c2 aa 0a
  35  * After stringprep (length 2): 61 0a
  36  * $
  37  *
  38  */
  39
  40 int
  41 main (int argc, char *argv[])
  42 {
  43   char buf[BUFSIZ];
  44   char *p;
  45   int rc;
  46   size_t i;
  47
  48   printf ("Input string encoded as `%s': ", stringprep_locale_charset ());
  49   fflush (stdout);
  50   fgets (buf, BUFSIZ, stdin);
  51
  52   printf ("Before locale2utf8 (length %d): ", strlen (buf));
  53   for (i = 0; i < strlen (buf); i++)
  54     printf ("%02x ", buf[i] & 0xFF);
  55   printf ("\n");
  56
  57   p = stringprep_locale_to_utf8 (buf);
  58   if (p)
  59     {
  60       strcpy (buf, p);
  61       free (p);
  62     }
  63   else
  64     printf ("Could not convert string to UTF-8, continuing anyway...\n");
  65
  66   printf ("Before stringprep (length %d): ", strlen (buf));
  67   for (i = 0; i < strlen (buf); i++)
  68     printf ("%02x ", buf[i] & 0xFF);
  69   printf ("\n");
  70
  71   rc = stringprep (buf, BUFSIZ, 0, stringprep_nameprep);
  72   if (rc != STRINGPREP_OK)
  73     printf ("Stringprep failed with rc %d...\n", rc);
  74   else
  75     {
  76       printf ("After stringprep (length %d): ", strlen (buf));
  77       for (i = 0; i < strlen (buf); i++)
  78         printf ("%02x ", buf[i] & 0xFF);
  79       printf ("\n");
  80     }
  81
  82   return 0;
  83 }