1 files changed, 136 insertions, 0 deletions
diff --git a/lib/ngtcp2_net.h b/lib/ngtcp2_net.h
new file mode 100644
index 0000000..cd73d2b
--- /dev/null
+++ b/lib/ngtcp2_net.h
@@ -0,0 +1,136 @@
+/*
+ * ngtcp2
+ *
+ * Copyright (c) 2022 ngtcp2 contributors
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining
+ * a copy of this software and associated documentation files (the
+ * "Software"), to deal in the Software without restriction, including
+ * without limitation the rights to use, copy, modify, merge, publish,
+ * distribute, sublicense, and/or sell copies of the Software, and to
+ * permit persons to whom the Software is furnished to do so, subject to
+ * the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be
+ * included in all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+ * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+ * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
+ * LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
+ * OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
+ * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+#ifndef NGTCP2_NET_H
+#define NGTCP2_NET_H
+
+/* This header file is explicitly allowed to be shared with
+   ngtcp2_crypto library. */
+
+#ifdef HAVE_CONFIG_H
+#  include <config.h>
+#endif /* HAVE_CONFIG_H */
+
+#ifdef HAVE_ARPA_INET_H
+#  include <arpa/inet.h>
+#endif /* HAVE_ARPA_INET_H */
+
+#ifdef HAVE_NETINET_IN_H
+#  include <netinet/in.h>
+#endif /* HAVE_NETINET_IN_H */
+
+#ifdef HAVE_BYTESWAP_H
+#  include <byteswap.h>
+#endif /* HAVE_BYTESWAP_H */
+
+#ifdef HAVE_ENDIAN_H
+#  include <endian.h>
+#endif /* HAVE_ENDIAN_H */
+
+#ifdef HAVE_SYS_ENDIAN_H
+#  include <sys/endian.h>
+#endif /* HAVE_SYS_ENDIAN_H */
+
+#include <ngtcp2/ngtcp2.h>
+
+#if defined(HAVE_BSWAP_64) ||                                                  \
+    (defined(HAVE_DECL_BSWAP_64) && HAVE_DECL_BSWAP_64 > 0)
+#  define ngtcp2_bswap64 bswap_64
+#else /* !HAVE_BSWAP_64 */
+#  define ngtcp2_bswap64(N)                                                    \
+    ((uint64_t)(ngtcp2_ntohl((uint32_t)(N))) << 32 |                           \
+     ngtcp2_ntohl((uint32_t)((N) >> 32)))
+#endif /* !HAVE_BSWAP_64 */
+
+#if defined(HAVE_BE64TOH) ||                                                   \
+    (defined(HAVE_DECL_BE64TOH) && HAVE_DECL_BE64TOH > 0)
+#  define ngtcp2_ntohl64(N) be64toh(N)
+#  define ngtcp2_htonl64(N) htobe64(N)
+#else /* !HAVE_BE64TOH */
+#  if defined(WORDS_BIGENDIAN)
+#    define ngtcp2_ntohl64(N) (N)
+#    define ngtcp2_htonl64(N) (N)
+#  else /* !WORDS_BIGENDIAN */
+#    define ngtcp2_ntohl64(N) ngtcp2_bswap64(N)
+#    define ngtcp2_htonl64(N) ngtcp2_bswap64(N)
+#  endif /* !WORDS_BIGENDIAN */
+#endif   /* !HAVE_BE64TOH */
+
+#if defined(WIN32)
+/* Windows requires ws2_32 library for ntonl family functions.  We
+   define inline functions for those function so that we don't have
+   dependeny on that lib. */
+
+#  ifdef _MSC_VER
+#    define STIN static __inline
+#  else
+#    define STIN static inline
+#  endif
+
+STIN uint32_t ngtcp2_htonl(uint32_t hostlong) {
+  uint32_t res;
+  unsigned char *p = (unsigned char *)&res;
+  *p++ = (unsigned char)(hostlong >> 24);
+  *p++ = (hostlong >> 16) & 0xffu;
+  *p++ = (hostlong >> 8) & 0xffu;
+  *p = hostlong & 0xffu;
+  return res;
+}
+
+STIN uint16_t ngtcp2_htons(uint16_t hostshort) {
+  uint16_t res;
+  unsigned char *p = (unsigned char *)&res;
+  *p++ = (unsigned char)(hostshort >> 8);
+  *p = hostshort & 0xffu;
+  return res;
+}
+
+STIN uint32_t ngtcp2_ntohl(uint32_t netlong) {
+  uint32_t res;
+  unsigned char *p = (unsigned char *)&netlong;
+  res = (uint32_t)(*p++ << 24);
+  res += (uint32_t)(*p++ << 16);
+  res += (uint32_t)(*p++ << 8);
+  res += *p;
+  return res;
+}
+
+STIN uint16_t ngtcp2_ntohs(uint16_t netshort) {
+  uint16_t res;
+  unsigned char *p = (unsigned char *)&netshort;
+  res = (uint16_t)(*p++ << 8);
+  res += *p;
+  return res;
+}
+
+#else /* !WIN32 */
+
+#  define ngtcp2_htonl htonl
+#  define ngtcp2_htons htons
+#  define ngtcp2_ntohl ntohl
+#  define ngtcp2_ntohs ntohs
+
+#endif /* !WIN32 */
+
+#endif /* NGTCP2_NET_H */