1 files changed, 32 insertions, 0 deletions
diff --git a/src/shared/idn-util.h b/src/shared/idn-util.h
new file mode 100644
index 0000000..4698eed
--- /dev/null
+++ b/src/shared/idn-util.h
@@ -0,0 +1,32 @@
+/* SPDX-License-Identifier: LGPL-2.1-or-later */
+#pragma once
+
+#if HAVE_LIBIDN2
+#  include <idn2.h>
+#elif HAVE_LIBIDN
+#  include <idna.h>
+#  include <stringprep.h>
+#endif
+
+#include <inttypes.h>
+
+#if HAVE_LIBIDN2 || HAVE_LIBIDN
+int dlopen_idn(void);
+#else
+static inline int dlopen_idn(void) {
+        return -EOPNOTSUPP;
+}
+#endif
+
+#if HAVE_LIBIDN2
+extern int (*sym_idn2_lookup_u8)(const uint8_t* src, uint8_t** lookupname, int flags);
+extern const char *(*sym_idn2_strerror)(int rc);
+extern int (*sym_idn2_to_unicode_8z8z)(const char * input, char ** output, int flags);
+#endif
+
+#if HAVE_LIBIDN
+extern int (*sym_idna_to_ascii_4i)(const uint32_t * in, size_t inlen, char *out, int flags);
+extern int (*sym_idna_to_unicode_44i)(const uint32_t * in, size_t inlen,uint32_t * out, size_t * outlen, int flags);
+extern char* (*sym_stringprep_ucs4_to_utf8)(const uint32_t * str, ssize_t len, size_t * items_read, size_t * items_written);
+extern uint32_t* (*sym_stringprep_utf8_to_ucs4)(const char *str, ssize_t len, size_t *items_written);
+#endif