add package libidn2

See https://github.com/mxe/mxe/issues/1691https://github.com/mxe/mxe/issues/1691

1 files changed, 44 insertions, 0 deletions

diff --git a/src/libidn2-test.c b/src/libidn2-test.c
new file mode 100644
index 0000000..65cd099
--- /dev/null
+++ b/src/libidn2-test.c
@@ -0,0 +1,44 @@
+/*
+ * This file is part of MXE. See LICENSE.md for licensing information.
+ *
+ * Based on https://www.gnu.org/software/libidn/libidn2/manual/libidn2.html#Lookup
+ */
+
+#include <stdio.h> /* printf, fflush, fgets, stdin, perror, fprintf */
+#include <string.h> /* strlen */
+#include <locale.h> /* setlocale */
+#include <stdlib.h> /* free */
+#include <idn2.h> /* idn2_lookup_ul, IDN2_OK, idn2_strerror, idn2_strerror_name */
+
+int
+main ()
+{
+  int rc;
+  char src[BUFSIZ];
+  char *lookupname;
+
+  setlocale (LC_ALL, "");
+
+  printf ("Enter (possibly non-ASCII) domain name to lookup: ");
+  fflush (stdout);
+  if (!fgets (src, sizeof (src), stdin))
+    {
+      perror ("fgets");
+      return 1;
+    }
+  src[strlen (src) - 1] = '\0';
+
+  rc = idn2_lookup_ul (src, &lookupname, 0);
+  if (rc != IDN2_OK)
+    {
+      fprintf (stderr, "error: %s (%s, %d)\n",
+           idn2_strerror (rc), idn2_strerror_name (rc), rc);
+      return 1;
+    }
+
+  printf ("IDNA2008 domain name to lookup in DNS: %s\n", lookupname);
+
+  free (lookupname);
+
+  return 0;
+}