diff options
Diffstat (limited to 'src/socket.c')
| -rw-r--r-- | src/socket.c | 25 |
1 files changed, 23 insertions, 2 deletions
diff --git a/src/socket.c b/src/socket.c index f60479f5cc..2c7e9009c1 100644 --- a/src/socket.c +++ b/src/socket.c @@ -43,7 +43,9 @@ #include <c-ctype.h> #include "sockets.h" -#ifdef HAVE_LIBIDN +#ifdef HAVE_LIBIDN2 +#include <idn2.h> +#elif defined HAVE_LIBIDN #include <idna.h> #include <idn-free.h> #endif @@ -398,7 +400,26 @@ socket_open(socket_st * hd, const char *hostname, const char *service, hd->rdata.size = rdata->size; } -#ifdef HAVE_LIBIDN +#ifdef HAVE_LIBIDN2 +#if IDN2_VERSION_NUMBER >= 0x00140000 + /* IDN2_NONTRANSITIONAL automatically converts to lowercase + * IDN2_NFC_INPUT converts to NFC before toASCII conversion + * + * Since IDN2_NONTRANSITIONAL implicitely does NFC conversion, we don't need + * the additional IDN2_NFC_INPUT. But just for the unlikely case that the linked + * library is not matching the headers when building and it doesn't support TR46, + * we provide IDN2_NFC_INPUT. */ + + err = idn2_lookup_u8((uint8_t *)hostname, (uint8_t **)&a_hostname, IDN2_NFC_INPUT | IDN2_NONTRANSITIONAL); +#else + err = idn2_lookup_u8((uint8_t *)hostname, (uint8_t **)&a_hostname, IDN2_NFC_INPUT); +#endif + if (err != IDN2_OK) { + fprintf(stderr, "Cannot convert %s to IDNA: %s\n", hostname, + idn2_strerror(err)); + exit(1); + } +#elif defined HAVE_LIBIDN err = idna_to_ascii_8z(hostname, &a_hostname, IDNA_ALLOW_UNASSIGNED); if (err != IDNA_SUCCESS) { fprintf(stderr, "Cannot convert %s to IDNA: %s\n", hostname, |