From c8c62246f84b5d9d4a496097f043696e2d9ba0bb Mon Sep 17 00:00:00 2001
From: Simon Rettberg
Date: Sat, 28 Oct 2017 14:56:58 +0200
Subject: [*] Introduce constants for IPv4/6 in dnbd3_host_t

AF_INET luckily was "2" on all platforms checked, so no problems
there with interoperation, but AF_INET6 is different between
Linux, BSD, Windows and possibly others, so map back and forth
between AF_INET/AF_INET6 and HOST_IP4/HOST_IP6 to fix this.
---
 src/types.h | 8 +++++++-
 1 file changed, 7 insertions(+), 1 deletion(-)

(limited to 'src/types.h')

diff --git a/src/types.h b/src/types.h
index 9f9e744..313e907 100644
--- a/src/types.h
+++ b/src/types.h
@@ -98,12 +98,18 @@ static const uint16_t dnbd3_packet_magic = (0x73) | (0x72 << 8);
 #error "Unknown Endianness"
 #endif
 
+typedef uint8_t dnbd3_af;
+
+static const dnbd3_af HOST_NONE = (dnbd3_af)0;
+static const dnbd3_af HOST_IP4 = (dnbd3_af)2;
+static const dnbd3_af HOST_IP6 = (dnbd3_af)10;
+
 #pragma pack(1)
 typedef struct dnbd3_host_t
 {
 	uint8_t addr[16];    // 16byte (network representation, so it can be directly passed to socket functions)
 	uint16_t port;       // 2byte (network representation, so it can be directly passed to socket functions)
-	uint8_t type;        // 1byte (ip version. AF_INET or AF_INET6. 0 means this struct is empty and should be ignored)
+	dnbd3_af type;        // 1byte (ip version. HOST_IP4 or HOST_IP6. 0 means this struct is empty and should be ignored)
 } dnbd3_host_t;
 #pragma pack(0)
 
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