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Add optional support for libidn2 and therefore IDNA2008.

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This commit is contained in:
Petr Menšík
2017-05-10 21:41:57 +01:00
committed by Simon Kelley
parent 05f76dab89
commit d203af4a02
3 changed files with 27 additions and 8 deletions
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19
src/util.c
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@@ -24,7 +24,9 @@
#include <sys/times.h>
#endif
#if defined(LOCALEDIR) || defined(HAVE_IDN)
#ifdef HAVE_LIBIDN2
#include <idn2.h>
#elif defined(LOCALEDIR) || defined(HAVE_IDN)
#include <idna.h>
#endif
@@ -134,7 +136,7 @@ static int check_name(char *in)
else if (isascii((unsigned char)c) && iscntrl((unsigned char)c))
/* iscntrl only gives expected results for ascii */
return 0;
#if !defined(LOCALEDIR) && !defined(HAVE_IDN)
#if !defined(LOCALEDIR) && !defined(HAVE_IDN) && !defined(HAVE_LIBIDN2)
else if (!isascii((unsigned char)c))
return 0;
#endif
@@ -184,7 +186,7 @@ int legal_hostname(char *name)
char *canonicalise(char *in, int *nomem)
{
char *ret = NULL;
#if defined(LOCALEDIR) || defined(HAVE_IDN)
#if defined(LOCALEDIR) || defined(HAVE_IDN) || defined(HAVE_LIBIDN2)
int rc;
#endif
@@ -194,8 +196,15 @@ char *canonicalise(char *in, int *nomem)
if (!check_name(in))
return NULL;
#if defined(LOCALEDIR) || defined(HAVE_IDN)
if ((rc = idna_to_ascii_lz(in, &ret, 0)) != IDNA_SUCCESS)
#if defined(LOCALEDIR) || defined(HAVE_IDN) || defined(HAVE_LIBIDN2)
#ifdef HAVE_LIBIDN2
rc = idn2_to_ascii_lz(in, &ret, IDN2_NONTRANSITIONAL);
if (rc == IDN2_DISALLOWED)
rc = idn2_to_ascii_lz(in, &ret, IDN2_TRANSITIONAL);
#else
rc = idna_to_ascii_lz(in, &ret, 0);
#endif
if (rc != IDNA_SUCCESS)
{
if (ret)
free(ret);