From: John Hodge <tpg@mutabah.net>
Date: Sat, 8 Mar 2014 06:04:25 +0000 (+0800)
Subject: Usermode/libpsocket - Header wrapping, byte ordering functions
X-Git-Url: https://git.ucc.asn.au/?a=commitdiff_plain;h=70d0f9abb42fb0b25f35b3fca91159e5c3a90316;p=tpg%2Facess2.git

Usermode/libpsocket - Header wrapping, byte ordering functions
---

diff --git a/Usermode/Libraries/libpsocket.so_src/Makefile b/Usermode/Libraries/libpsocket.so_src/Makefile
index bd7f38d0..0ad326e5 100644
--- a/Usermode/Libraries/libpsocket.so_src/Makefile
+++ b/Usermode/Libraries/libpsocket.so_src/Makefile
@@ -6,7 +6,7 @@ CPPFLAGS +=
 CFLAGS   += -Wall
 LDFLAGS  += -lc -soname libpsocket.so -lnet
 
-OBJ = main.o getaddrinfo.o socket.o pton.o
+OBJ = main.o getaddrinfo.o socket.o pton.o byteordering.o
 BIN = libpsocket.so
 
 include ../Makefile.tpl
diff --git a/Usermode/Libraries/libpsocket.so_src/byteordering.c b/Usermode/Libraries/libpsocket.so_src/byteordering.c
new file mode 100644
index 00000000..0c8b99df
--- /dev/null
+++ b/Usermode/Libraries/libpsocket.so_src/byteordering.c
@@ -0,0 +1,58 @@
+/*
+ * Acess2 POSIX Sockets Library
+ * - By John Hodge (thePowersGang)
+ *
+ * byteordering.c
+ * - hton/ntoh
+ */
+#include <arpa/inet.h>
+
+// === CODE ===
+static uint32_t Flip32(uint32_t val)
+{
+	return (((val >> 24) & 0xFF) << 0)
+		| (((val >> 16) & 0xFF) << 8)
+		| (((val >> 8) & 0xFF) << 16)
+		| (((val >> 0) & 0xFF) << 24)
+		;
+}
+
+static uint16_t Flip16(uint16_t val)
+{
+	return (val >> 8) | (val << 8);
+}
+
+uint32_t htonl(uint32_t hostlong)
+{
+	#if BIG_ENDIAN
+	return hostlong;
+	#else
+	return Flip32(hostlong);
+	#endif
+}
+uint16_t htons(uint16_t hostshort)
+{
+	#if BIG_ENDIAN
+	return hostshort;
+	#else
+	return Flip16(hostshort);
+	#endif
+}
+uint32_t ntohl(uint32_t netlong)
+{
+	#if BIG_ENDIAN
+	return netlong;
+	#else
+	return Flip32(netlong);
+	#endif
+}
+uint16_t ntohs(uint16_t netshort)
+{
+	#if BIG_ENDIAN
+	return netshort;
+	#else
+	return Flip16(netshort);
+	#endif
+}
+
+
diff --git a/Usermode/Libraries/libpsocket.so_src/getaddrinfo.c b/Usermode/Libraries/libpsocket.so_src/getaddrinfo.c
index aa8128d9..fd935038 100644
--- a/Usermode/Libraries/libpsocket.so_src/getaddrinfo.c
+++ b/Usermode/Libraries/libpsocket.so_src/getaddrinfo.c
@@ -235,3 +235,8 @@ const char *gai_strerror(int errnum)
 	}
 }
 
+struct hostent *gethostbyname(const char *name)
+{
+	return NULL;
+}
+
diff --git a/Usermode/Libraries/libpsocket.so_src/include_exp/arpa/inet.h b/Usermode/Libraries/libpsocket.so_src/include_exp/arpa/inet.h
index effc2883..ea303ddb 100644
--- a/Usermode/Libraries/libpsocket.so_src/include_exp/arpa/inet.h
+++ b/Usermode/Libraries/libpsocket.so_src/include_exp/arpa/inet.h
@@ -11,6 +11,10 @@
 #include <netinet/in.h>
 #include <stdint.h>	// Should be inttypes.h?
 
+#ifdef __cplusplus
+extern "C" {
+#endif
+
 extern uint32_t htonl(uint32_t hostlong);
 extern uint16_t htons(uint16_t hostshort);
 extern uint32_t ntohl(uint32_t netlong);
@@ -23,5 +27,9 @@ extern in_addr_t	inet_netof(struct in_addr in);
 extern in_addr_t	inet_network(const char *cp);
 extern char	*inet_ntoa(struct in_addr in);
 
+#ifdef __cplusplus
+}
+#endif
+
 #endif
 
diff --git a/Usermode/Libraries/libpsocket.so_src/include_exp/netdb.h b/Usermode/Libraries/libpsocket.so_src/include_exp/netdb.h
index 95f6f2e1..943d514d 100644
--- a/Usermode/Libraries/libpsocket.so_src/include_exp/netdb.h
+++ b/Usermode/Libraries/libpsocket.so_src/include_exp/netdb.h
@@ -3,6 +3,11 @@
 
 #include <sys/socket.h>
 
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+
 struct hostent
 {
 	char	*h_name;
@@ -11,6 +16,7 @@ struct hostent
 	 int	h_length;
 	char	**h_addr_list;
 };
+#define h_addr h_addr_list[0]	// backwards compataibility
 
 struct netent
 {
@@ -96,9 +102,16 @@ const char	*gai_strerror(int errorcode);
 extern struct servent	*getservbyname(const char *name, const char *proto);
 extern struct servent	*getservbyport(int port, const char *proto);
 
+extern struct hostent	*gethostbyname(const char *name);
+extern struct hostent	*gethostbyaddr(const void *addr, socklen_t len, int type);
+
 extern void	setservent(int stayopen);
 extern struct servent	*getservent(void);
 extern void	enservent(void);
 
+#ifdef __cplusplus
+}
+#endif
+
 #endif
 
diff --git a/Usermode/Libraries/libpsocket.so_src/include_exp/netinet/in.h b/Usermode/Libraries/libpsocket.so_src/include_exp/netinet/in.h
index d69ce86d..0f4e887f 100644
--- a/Usermode/Libraries/libpsocket.so_src/include_exp/netinet/in.h
+++ b/Usermode/Libraries/libpsocket.so_src/include_exp/netinet/in.h
@@ -58,5 +58,7 @@ struct sockaddr_in6
 	uint32_t	sin6_scope_id;
 };
 
+#include <arpa/inet.h>	// for hton*/ntoh* (bochs)
+
 #endif
 
diff --git a/Usermode/Libraries/libpsocket.so_src/include_exp/sys/socket.h b/Usermode/Libraries/libpsocket.so_src/include_exp/sys/socket.h
index deb1f51e..d9ce4ecd 100644
--- a/Usermode/Libraries/libpsocket.so_src/include_exp/sys/socket.h
+++ b/Usermode/Libraries/libpsocket.so_src/include_exp/sys/socket.h
@@ -14,6 +14,10 @@
 #endif
 #include <stdint.h>	// uint32_t
 
+#ifdef __cplusplus
+extern "C" {
+#endif
+
 typedef uint32_t	socklen_t;
 
 typedef enum
@@ -23,8 +27,9 @@ typedef enum
 	AF_LOCAL 	= 2,
 	AF_INET 	= 4,
 	AF_INET6	= 6,
-} sa_family_t;
+};
 #define AF_UNIX	AF_LOCAL
+typedef uint8_t	sa_family_t;	// I would use an enum, but cast issues
 
 struct sockaddr
 {
@@ -141,6 +146,8 @@ extern int	connect(int sockfd, const struct sockaddr *addr, socklen_t addrlen);
  */
 extern int	listen(int sockfd, int backlog);
 
+#define SOMAXCONN	128	// Maximum size of backlog (actually far higher)
+
 /**
  * \brief Accept an incoming connection
  */
@@ -164,5 +171,9 @@ extern void	herror(const char *s);
 extern const char	*hstrerror(int err);
 extern struct hostent *gethostent(void);
 
+#ifdef __cplusplus
+}
+#endif
+
 #endif