Hello,
I have attached a very simple program which I believe displays a
serious problem in libidn. Even using IDNA_USE_STD3_ASCII_RULES it
still happily accepts almost anything.
Maybe I misunderstood and libidn is not designed for this kind of
thing. If so, could you suggest a better alternative?
With regards,
Martijn Otto
#include <idna.h>
#include <stdio.h>
#include <stdlib.h>
int main()
{
// input, output and result of the operation
char *output;
int result;
// try to convert the invalid domain name
result = idna_to_unicode_8z8z(".org", &output, IDNA_USE_STD3_ASCII_RULES);
// the .org domain is obviously bogus, so we expect an error
if (result != IDNA_SUCCESS) return 0;
// idna considered the bogus name valid, this is an error
fprintf(stderr, "libidn considered our bogus domain name valid, and converted it to: '%s'\n", output);
free(output);
// something went wrong
return 1;
}
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