static idn_result_t
convert_line (idnconv_strbuf_t * from, idnconv_strbuf_t * to, idn_resconf_t conf, idn_action_t actions, int flags)
{
idn_result_t r = idn_success;
char *from_str = strbuf_get (from);
for (;;)
{
char *to_str = strbuf_get (to);
size_t to_size = strbuf_size (to);
switch (flags & (FLAG_REVERSE | FLAG_SELECTIVE))
{
case 0:
r = idn_res_encodename (conf, actions, from_str, to_str, to_size);
break;
case FLAG_REVERSE:
r = idn_res_decodename (conf, actions, from_str, to_str, to_size);
break;
case FLAG_SELECTIVE:
r = selective_encode (conf, actions, from_str, to_str, to_size);
break;
case FLAG_REVERSE | FLAG_SELECTIVE:
r = selective_decode (conf, actions, from_str, to_str, to_size);
break;
}
if (r == idn_buffer_overflow)
{
/*
* Conversion is not successful because
* the size of the target buffer is not enough.
* Double the size and retry.
*/
if (strbuf_double (to) == NULL)
{
/* oops. allocation failed. */
return (idn_nomemory);
}
}
else
{
break;
}
}
return (r);
}
static int
convert_file(FILE *fp, char *zld, int auto_zld, int selective) {
mdn_result_t r;
char line1[1024];
char line2[1024];
int nl_trimmed;
int ace_hack;
if (mdn_converter_isasciicompatible(conv_in_ctx))
ace_hack = 1;
else
ace_hack = 0;
line_number = 1;
while (fgets(line1, sizeof(line1), 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.
*/
if (line1[strlen(line1) - 1] == '\n') {
line1[strlen(line1) - 1] = '\0';
nl_trimmed = 1;
} else {
nl_trimmed = 0;
}
/*
* Convert input line to UTF-8.
*/
if (ace_hack) {
/*
* Selectively decode those portions.
*/
r = selective_decode(line1, line2, 1024);
} else {
r = mdn_converter_localtoutf8(conv_in_ctx,
line1, line2, 1024);
}
if (r != mdn_success) {
errormsg("conversion failed at line %d: %s\n",
line_number,
mdn_result_tostring(r));
return (1);
}
if (!mdn_utf8_isvalidstring(line2)) {
errormsg("conversion to utf-8 failed at line %d\n",
line_number);
return (1);
}
/*
* Normalize and convert to the output codeset.
*/
if (selective) {
r = selective_encode(line2, line1, sizeof(line1),
zld, auto_zld);
} else {
r = encode_region(line2, line1, sizeof(line1),
zld, auto_zld);
}
if (r != mdn_success)
return (1);
fputs(line1, stdout);
if (nl_trimmed)
putc('\n', stdout);
if (flush_every_line)
fflush(stdout);
line_number++;
}
return (0);
}