static void
cache_store (const char *host, struct address_list *al)
{
if (!host_name_addresses_map)
host_name_addresses_map = make_nocase_string_hash_table (0);
++al->refcount;
hash_table_put (host_name_addresses_map, xstrdup_lower (host), al);
IF_DEBUG
{
int i;
debug_logprintf ("Caching %s =>", host);
for (i = 0; i < al->count; i++)
debug_logprintf (" %s", print_address (al->addresses + i));
debug_logprintf ("\n");
}
}
static void
cache_host_lookup (const char *host, struct address_list *al)
{
if (!host_name_addresses_map)
host_name_addresses_map = make_nocase_string_hash_table (0);
++al->refcount;
hash_table_put (host_name_addresses_map, xstrdup_lower (host), al);
#ifdef ENABLE_DEBUG
if (opt.debug)
{
int i;
debug_logprintf ("Caching %s =>", host);
for (i = 0; i < al->count; i++)
debug_logprintf (" %s", pretty_print_address (al->addresses + i));
debug_logprintf ("\n");
}
#endif
}
/* Do the conversion according to the passed conversion descriptor cd. *out
will contain the transcoded string on success. *out content is
unspecified otherwise. */
static bool
do_conversion (const char *tocode, const char *fromcode, char const *in_org, size_t inlen, char **out)
{
iconv_t cd;
/* sXXXav : hummm hard to guess... */
size_t len, done, outlen;
int invalid = 0, tooshort = 0;
char *s, *in, *in_save;
cd = iconv_open (tocode, fromcode);
if (cd == (iconv_t)(-1))
{
logprintf (LOG_VERBOSE, _("Conversion from %s to %s isn't supported\n"),
quote (fromcode), quote (tocode));
*out = NULL;
return false;
}
/* iconv() has to work on an unescaped string */
in_save = in = xstrndup (in_org, inlen);
url_unescape_except_reserved (in);
inlen = strlen(in);
len = outlen = inlen * 2;
*out = s = xmalloc (outlen + 1);
done = 0;
for (;;)
{
if (iconv (cd, &in, &inlen, out, &outlen) != (size_t)(-1) &&
iconv (cd, NULL, NULL, out, &outlen) != (size_t)(-1))
{
*out = s;
*(s + len - outlen - done) = '\0';
xfree(in_save);
iconv_close(cd);
IF_DEBUG
{
/* not not print out embedded passwords, in_org might be an URL */
if (!strchr(in_org, '@') && !strchr(*out, '@'))
debug_logprintf ("converted '%s' (%s) -> '%s' (%s)\n", in_org, fromcode, *out, tocode);
else
debug_logprintf ("%s: logging suppressed, strings may contain password\n", __func__);
}
return true;
}
/* Incomplete or invalid multibyte sequence */
if (errno == EINVAL || errno == EILSEQ)
{
if (!invalid)
logprintf (LOG_VERBOSE,
_("Incomplete or invalid multibyte sequence encountered\n"));
invalid++;
**out = *in;
in++;
inlen--;
(*out)++;
outlen--;
}
else if (errno == E2BIG) /* Output buffer full */
{
tooshort++;
done = len;
len = outlen = done + inlen * 2;
s = xrealloc (s, outlen + 1);
*out = s + done;
}
else /* Weird, we got an unspecified error */
{
logprintf (LOG_VERBOSE, _("Unhandled errno %d\n"), errno);
break;
}
}