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/* strerror-idna.c --- Convert IDNA errors into text.
* Copyright (C) 2004, 2005, 2006, 2007, 2008 Simon Josefsson
*
* This file is part of GNU Libidn.
*
* GNU Libidn is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* GNU Libidn is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with GNU Libidn; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA
*
*/
#ifdef HAVE_CONFIG_H
# include "idn_config.h"
#endif
#include "idna.h"
#include "gettext.h"
#define _(String) dgettext (PACKAGE, String)
/**
* idna_strerror - return string describing idna error code
* @rc: an #Idna_rc return code.
*
* Convert a return code integer to a text string. This string can be
* used to output a diagnostic message to the user.
*
* IDNA_SUCCESS: Successful operation. This value is guaranteed to
* always be zero, the remaining ones are only guaranteed to hold
* non-zero values, for logical comparison purposes.
* IDNA_STRINGPREP_ERROR: Error during string preparation.
* IDNA_PUNYCODE_ERROR: Error during punycode operation.
* IDNA_CONTAINS_NON_LDH: For IDNA_USE_STD3_ASCII_RULES, indicate that
* the string contains non-LDH ASCII characters.
* IDNA_CONTAINS_MINUS: For IDNA_USE_STD3_ASCII_RULES, indicate that
* the string contains a leading or trailing hyphen-minus (U+002D).
* IDNA_INVALID_LENGTH: The final output string is not within the
* (inclusive) range 1 to 63 characters.
* IDNA_NO_ACE_PREFIX: The string does not contain the ACE prefix
* (for ToUnicode).
* IDNA_ROUNDTRIP_VERIFY_ERROR: The ToASCII operation on output
* string does not equal the input.
* IDNA_CONTAINS_ACE_PREFIX: The input contains the ACE prefix (for
* ToASCII).
* IDNA_ICONV_ERROR: Could not convert string in locale encoding.
* IDNA_MALLOC_ERROR: Could not allocate buffer (this is typically a
* fatal error).
* IDNA_DLOPEN_ERROR: Could not dlopen the libcidn DSO (only used
* internally in libc).
*
* Return value: Returns a pointer to a statically allocated string
* containing a description of the error with the return code @rc.
**/
const char *
idna_strerror (Idna_rc rc)
{
const char *p;
bindtextdomain (PACKAGE, LOCALEDIR);
switch (rc)
{
case IDNA_SUCCESS:
p = _("Success");
break;
case IDNA_STRINGPREP_ERROR:
p = _("String preparation failed");
break;
case IDNA_PUNYCODE_ERROR:
p = _("Punycode failed");
break;
case IDNA_CONTAINS_NON_LDH:
p = _("Non-digit/letter/hyphen in input");
break;
case IDNA_CONTAINS_MINUS:
p = _("Forbidden leading or trailing minus sign (`-')");
break;
case IDNA_INVALID_LENGTH:
p = _("Output would be too large or too small");
break;
case IDNA_NO_ACE_PREFIX:
p = _("Input does not start with ACE prefix (`xn--')");
break;
case IDNA_ROUNDTRIP_VERIFY_ERROR:
p = _("String not idempotent under ToASCII");
break;
case IDNA_CONTAINS_ACE_PREFIX:
p = _("Input already contain ACE prefix (`xn--')");
break;
case IDNA_ICONV_ERROR:
p = _("System iconv failed");
break;
case IDNA_MALLOC_ERROR:
p = _("Cannot allocate memory");
break;
case IDNA_DLOPEN_ERROR:
p = _("System dlopen failed");
break;
default:
p = _("Unknown error");
break;
}
return p;
}
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