C++ (Cpp) wind_punycode_label_toascii Examples

Example #1

File: idn-lookup.c Project: randombit/hacrypto

static void
lookup(const char *name)
{
    unsigned i;
    char encoded[1024];
    char *ep;
    int ret;
    struct addrinfo hints;
    struct addrinfo *ai;

    size_t u_len = strlen(name);
    uint32_t *u = malloc(u_len * sizeof(uint32_t));
    size_t norm_len = u_len * 2;
    uint32_t *norm = malloc(norm_len * sizeof(uint32_t));

    if (u == NULL && u_len != 0)
        errx(1, "malloc failed");
    if (norm == NULL && norm_len != 0)
        errx(1, "malloc failed");

    ret = wind_utf8ucs4(name, u, &u_len);
    if (ret)
        errx(1, "utf8 conversion failed");
    ret = wind_stringprep(u, u_len, norm, &norm_len, WIND_PROFILE_NAME);
    if (ret)
        errx(1, "stringprep failed");
    free(u);

    ep = encoded;
    for (i = 0; i < norm_len; ++i) {
        unsigned j;
        size_t len;

        for (j = i; j < norm_len && !is_separator(norm[j]); ++j)
            ;
        len = sizeof(encoded) - (ep - encoded);
        ret = wind_punycode_label_toascii(norm + i, j - i, ep, &len);
        if (ret)
            errx(1, "punycode failed");

        ep += len;
        *ep++ = '.';
        i = j;
    }
    *ep = '\0';
    free(norm);

    printf("Converted \"%s\" into \"%s\"\n", name, encoded);

    memset(&hints, 0, sizeof(hints));
    hints.ai_flags = AI_CANONNAME;
    ret = getaddrinfo(encoded, NULL, &hints, &ai);
    if(ret)
        errx(1, "getaddrinfo failed: %s", gai_strerror(ret));
    printf("canonical-name: %s\n", ai->ai_canonname);
    freeaddrinfo(ai);
}

Example #2

int
main(void)
{
    unsigned i;
    unsigned failures = 0;

    for (i = 0; i < punycode_examples_size; ++i) {
	char buf[256];
	int ret;
	const struct punycode_example *e = &punycode_examples[i];
	size_t len;

	len = sizeof(buf);
	ret = wind_punycode_label_toascii(e->val, e->len, buf, &len);
	if (ret) {
	    printf("punycode %u (%s) failed: %d\n", i, e->description, ret);
	    ++failures;
	    continue;
	}
	if (strncmp(buf, "xn--", 4) == 0) {
	    memmove(buf, buf + 4, len - 4);
	    len -= 4;
	}
	if (len != strlen(e->pc)) {
	    printf("punycode %u (%s) wrong len, actual: %u, expected: %u\n",
		   i, e->description,
		   (unsigned int)len, (unsigned int)strlen(e->pc));
	    printf("buf %s != pc: %s\n", buf, e->pc);
	    ++failures;
	    continue;
	}
	if (strncasecmp(buf, e->pc, len) != 0) {
	    printf("punycode %u (%s) wrong contents, "
		   "actual: \"%.*s\", expected: \"%s\"\n",
		   i, e->description, (unsigned int)len, buf, e->pc);
	    ++failures;
	    continue;
	}
    }
    return failures != 0;
}