static int decode_file (idn_resconf_t conf1, idn_resconf_t conf2, FILE * fp, int flags)
{
idn_result_t r;
idnconv_strbuf_t buf1, buf2;
idn_action_t actions1, actions2;
int nl_trimmed;
int local_ace_hack, idn_ace_hack;
idn_converter_t conv;
/*
* See if the input codeset is an ACE.
*/
conv = idn_resconf_getidnconverter (conf1);
if (conv != NULL && idn_converter_isasciicompatible (conv) && (flags & FLAG_SELECTIVE))
idn_ace_hack = 1;
else
idn_ace_hack = 0;
if (conv != NULL)
idn_converter_destroy (conv);
conv = idn_resconf_getlocalconverter (conf1);
if (conv != NULL && idn_converter_isasciicompatible (conv) && (flags & FLAG_SELECTIVE))
local_ace_hack = 1;
else
local_ace_hack = 0;
if (conv != NULL)
idn_converter_destroy (conv);
actions1 = IDN_IDNCONV;
if (local_ace_hack)
{
actions2 = IDN_IDNCONV;
if (flags & FLAG_MAP)
actions2 |= IDN_MAP;
if (flags & FLAG_NORMALIZE)
actions2 |= IDN_NORMALIZE;
if (flags & FLAG_PROHIBITCHECK)
actions2 |= IDN_PROHCHECK;
if (flags & FLAG_UNASSIGNCHECK)
actions2 |= IDN_UNASCHECK;
if (flags & FLAG_BIDICHECK)
actions2 |= IDN_BIDICHECK;
if (flags & FLAG_ASCIICHECK)
actions2 |= IDN_ASCCHECK;
if (flags & FLAG_LENGTHCHECK)
actions2 |= IDN_LENCHECK;
}
else
{
actions2 = IDN_LOCALCONV;
}
if (flags & FLAG_DELIMMAP)
actions1 |= IDN_DELIMMAP;
if (flags & FLAG_MAP)
actions1 |= IDN_MAP;
if (flags & FLAG_NORMALIZE)
actions1 |= IDN_NORMALIZE;
if (flags & FLAG_NORMALIZE)
actions1 |= IDN_NORMALIZE;
if (flags & FLAG_PROHIBITCHECK)
actions1 |= IDN_PROHCHECK;
if (flags & FLAG_UNASSIGNCHECK)
actions1 |= IDN_UNASCHECK;
if (flags & FLAG_BIDICHECK)
actions1 |= IDN_BIDICHECK;
if (flags & FLAG_ASCIICHECK)
actions1 |= IDN_ASCCHECK;
if (flags & FLAG_ROUNDTRIPCHECK)
actions1 |= IDN_RTCHECK;
strbuf_init (&buf1);
strbuf_init (&buf2);
line_number = 1;
while (strbuf_getline (&buf1, fp) != NULL)
{
/*
* Trim newline at the end. This is needed for
* those ascii-comatible encodings such as UTF-5 or RACE
* not to try converting newlines, which will result
* in `invalid encoding' error.
*/
nl_trimmed = trim_newline (&buf1);
/*
* Treat input line as the string encoded in local
* encoding and convert it to UTF-8 encoded string.
*/
if (local_ace_hack)
{
if (strbuf_copy (&buf2, strbuf_get (&buf1)) == NULL)
r = idn_nomemory;
else
r = idn_success;
}
else
{
r = convert_line (&buf1, &buf2, conf1, IDN_LOCALCONV, 0);
}
if (r != idn_success)
{
errormsg ("conversion failed at line %d: %s\n", line_number, idn_result_tostring (r));
goto error;
}
/*
* Convert internationalized domain names in the line.
*/
if (idn_ace_hack)
{
r = convert_line (&buf2, &buf1, conf1, actions1, FLAG_REVERSE | FLAG_SELECTIVE);
}
else
{
r = convert_line (&buf2, &buf1, conf1, actions1, FLAG_REVERSE);
}
if (r != idn_success)
{
errormsg ("conversion failed at line %d: %s\n", line_number, idn_result_tostring (r));
goto error;
}
if (!idn_utf8_isvalidstring (strbuf_get (&buf1)))
{
errormsg ("conversion to utf-8 failed at line %d\n", line_number);
goto error;
}
/*
* Perform round trip check and convert to the output
* codeset.
*/
if (local_ace_hack)
{
r = convert_line (&buf1, &buf2, conf2, actions2, FLAG_SELECTIVE);
}
else
{
r = convert_line (&buf1, &buf2, conf1, actions2, FLAG_REVERSE);
}
if (r != idn_success)
{
errormsg ("error in nameprep or output conversion "
"at line %d: %s\n", line_number, idn_result_tostring (r));
goto error;
}
fputs (strbuf_get (&buf2), stdout);
if (nl_trimmed)
putc ('\n', stdout);
if (flush_every_line)
fflush (stdout);
line_number++;
}
strbuf_reset (&buf1);
strbuf_reset (&buf2);
return (0);
error:
strbuf_reset (&buf1);
strbuf_reset (&buf2);
return (1);
}
idn_result_t
idn_res_decodename(idn_resconf_t ctx, idn_action_t actions, const char *from,
char *to, size_t tolen) {
idn_converter_t local_converter = NULL;
idn_converter_t idn_converter = NULL;
idn_delimitermap_t delimiter_mapper;
idn_result_t r;
labellist_t labels = NULL, l;
unsigned long *buffer = NULL;
unsigned long *saved_name = NULL;
size_t buffer_length;
int idn_is_ace;
assert(ctx != NULL && from != NULL && to != NULL);
TRACE(("idn_res_decodename(actions=%s, from=\"%s\", tolen=%d)\n",
idn__res_actionstostring(actions),
idn__debug_xstring(from, 50), (int)tolen));
if (actions & ~DECODE_MASK) {
WARNING(("idn_res_decodename: invalid actions 0x%x\n",
actions));
r = idn_invalid_action;
goto ret;
}
if (!initialized)
idn_res_initialize();
if (!enabled || actions == 0) {
r = copy_verbatim(from, to, tolen);
goto ret;
} else if (tolen <= 0) {
r = idn_buffer_overflow;
goto ret;
}
if (actions & IDN_DECODE_QUERY) {
#ifndef WITHOUT_ICONV
actions |= (IDN_DELIMMAP | IDN_MAP | IDN_NORMALIZE | \
IDN_PROHCHECK | IDN_BIDICHECK | IDN_IDNCONV | \
IDN_RTCHECK | IDN_LOCALCONV);
#else
actions |= (IDN_DELIMMAP | IDN_MAP | IDN_NORMALIZE | \
IDN_PROHCHECK | IDN_BIDICHECK | IDN_IDNCONV | \
IDN_RTCHECK);
#endif
}
/*
* Convert `from' to UCS4.
*/
local_converter = idn_resconf_getlocalconverter(ctx);
#ifndef WITHOUT_ICONV
if (local_converter == NULL) {
r = idn_invalid_name;
goto ret;
}
#endif
idn_converter = idn_resconf_getidnconverter(ctx);
if (idn_converter != NULL &&
idn_converter_isasciicompatible(idn_converter))
idn_is_ace = 1;
else
idn_is_ace = 0;
buffer_length = tolen * 2;
TRACE(("res idndecode(name=\"%s\")\n", idn__debug_xstring(from, 50)));
for (;;) {
void *new_buffer;
new_buffer = realloc(buffer, sizeof(*buffer) * buffer_length);
if (new_buffer == NULL) {
r = idn_nomemory;
goto ret;
}
buffer = (unsigned long *)new_buffer;
if ((actions & IDN_IDNCONV) &&
idn_converter != NULL && !idn_is_ace) {
r = idn_converter_convtoucs4(idn_converter, from,
buffer, buffer_length);
} else {
r = idn_ucs4_utf8toucs4(from, buffer, buffer_length);
}
if (r == idn_success)
break;
else if (r != idn_buffer_overflow)
goto ret;
buffer_length *= 2;
}
if (*buffer == '\0') {
if (tolen <= 0) {
r = idn_buffer_overflow;
goto ret;
}
*to = '\0';
r = idn_success;
goto ret;
}
/*
* Delimiter map.
*/
if (actions & IDN_DELIMMAP) {
TRACE(("res delimitermap(name=\"%s\")\n",
idn__debug_ucs4xstring(buffer, 50)));
delimiter_mapper = idn_resconf_getdelimitermap(ctx);
if (delimiter_mapper != NULL) {
r = idn_delimitermap_map(delimiter_mapper, buffer,
buffer, buffer_length);
idn_delimitermap_destroy(delimiter_mapper);
if (r != idn_success)
goto ret;
}
TRACE(("res delimitermap(): success (name=\"%s\")\n",
idn__debug_ucs4xstring(buffer, 50)));
}
/*
* Split the name into a list of labels.
*/
r = labellist_create(buffer, &labels);
if (r != idn_success)
goto ret;
/*
* Perform conversions and tests.
*/
for (l = labellist_tail(labels); l != NULL;
l = labellist_previous(l)) {
free(saved_name);
saved_name = NULL;
if (!idn__util_ucs4isasciirange(labellist_getname(l))) {
if (actions & IDN_MAP) {
r = label_map(ctx, l);
if (r != idn_success)
goto ret;
}
if (actions & IDN_NORMALIZE) {
r = label_normalize(ctx, l);
if (r != idn_success)
goto ret;
}
if (actions & IDN_PROHCHECK) {
r = label_prohcheck(ctx, l);
if (r == idn_prohibited) {
labellist_undo(l);
continue;
} else if (r != idn_success) {
goto ret;
}
}
if (actions & IDN_UNASCHECK) {
r = label_unascheck(ctx, l);
if (r == idn_prohibited) {
labellist_undo(l);
continue;
} else if (r != idn_success) {
goto ret;
}
}
if (actions & IDN_BIDICHECK) {
r = label_bidicheck(ctx, l);
if (r == idn_prohibited) {
labellist_undo(l);
continue;
} else if (r != idn_success) {
goto ret;
}
}
}
if ((actions & IDN_IDNCONV) && idn_is_ace) {
saved_name = idn_ucs4_strdup(labellist_getname(l));
if (saved_name == NULL) {
r = idn_nomemory;
goto ret;
}
r = label_idndecode(ctx, l);
if (r == idn_invalid_encoding) {
labellist_undo(l);
continue;
} else if (r != idn_success) {
goto ret;
}
}
if ((actions & IDN_RTCHECK) && saved_name != NULL) {
r = label_rtcheck(ctx, actions, l, saved_name);
if (r == idn_invalid_encoding) {
labellist_undo(l);
continue;
} else if (r != idn_success) {
goto ret;
}
}
#ifndef WITHOUT_ICONV
if (actions & IDN_LOCALCONV) {
r = label_localdecodecheck(ctx, l);
if (r != idn_success)
goto ret;
}
#endif
}
/*
* Concat a list of labels to a name.
*/
for (;;) {
void *new_buffer;
new_buffer = realloc(buffer, sizeof(*buffer) * buffer_length);
if (new_buffer == NULL) {
r = idn_nomemory;
goto ret;
}
buffer = (unsigned long *)new_buffer;
r = labellist_getnamelist(labels, buffer, buffer_length);
if (r == idn_success)
break;
else if (r != idn_buffer_overflow)
goto ret;
buffer_length *= 2;
}
if (actions & IDN_LOCALCONV) {
r = idn_converter_convfromucs4(local_converter, buffer, to,
tolen);
} else {
r = idn_ucs4_ucs4toutf8(buffer, to, tolen);
}
ret:
if (r == idn_success) {
TRACE(("idn_res_decodename(): success (to=\"%s\")\n",
idn__debug_xstring(to, 50)));
} else {
TRACE(("idn_res_decodename(): %s\n", idn_result_tostring(r)));
}
free(saved_name);
free(buffer);
if (local_converter != NULL)
idn_converter_destroy(local_converter);
if (idn_converter != NULL)
idn_converter_destroy(idn_converter);
if (labels != NULL)
labellist_destroy(labels);
return (r);
}
