[GNUnet-SVN] [gnurl] 49/173: IDN: Use TR46 'transitional' for toASCII translations

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ng0 pushed a commit to annotated tag gnurl-7.53.1
in repository gnurl.

commit f30cbcac11f5a627992f0c48cff91135808fa70f
Author: Tim Rühsen <address@hidden>
AuthorDate: Fri Jan 13 09:36:33 2017 +0100

    IDN: Use TR46 'transitional' for toASCII translations
    
    References: http://unicode.org/faq/idn.html
                http://unicode.org/reports/tr46
    
    Closes #1206
---
 lib/url.c | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/lib/url.c b/lib/url.c
index c7a91a4f7..29beb3853 100644
--- a/lib/url.c
+++ b/lib/url.c
@@ -4010,7 +4010,12 @@ static void fix_hostname(struct connectdata *conn, 
struct hostname *host)
 #ifdef USE_LIBIDN2
     if(idn2_check_version(IDN2_VERSION)) {
       char *ace_hostname = NULL;
-      int rc = idn2_lookup_ul((const char *)host->name, &ace_hostname, 0);
+#ifdef IDN2_TRANSITIONAL
+      int flags = IDN2_NFC_INPUT | IDN2_TRANSITIONAL;
+#else
+      int flags = IDN2_NFC_INPUT;
+#endif
+      int rc = idn2_lookup_ul((const char *)host->name, &ace_hostname, flags);
       if(rc == IDN2_OK) {
         host->encalloc = (char *)ace_hostname;
         /* change the name pointer to point to the encoded hostname */

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