s3 = silc_calloc(l + 1, sizeof(*s3));
silc_utf8_encode(s1, strlen(s1), SILC_STRING_LOCALE, s3, l);
l = silc_utf8_encoded_len(s2, strlen(s2), SILC_STRING_LOCALE);
if (!l)
s3 = silc_calloc(l + 1, sizeof(*s3));
silc_utf8_encode(s1, strlen(s1), SILC_STRING_LOCALE, s3, l);
l = silc_utf8_encoded_len(s2, strlen(s2), SILC_STRING_LOCALE);
if (!l)