Drop usage of old-age BSD types in generically used Cygwin headers

u_char, u_short, u_int, u_long are BSD-only types.  Remove them from
Cygwin headers which are supposed to be used in a non-BSD scenario.
Drop special Cygwin handling of those types in sys/types.h.

newlib:
	* libc/include/sys/types.h (u_char,u_short,u_int,u_long): Drop
	Cygwin exception.

cygwin:
	* fhandler_socket.cc (fhandler_socket::ioctl): Accommodate change
	in include/asm/socket.h.  Continue using u_long since that's the
	MS type here.
	* include/asm/socket.h: Since the type given in _IOR/_IOW macros
	is only used for its sizeof, replace u_long with equivalent long.
	* netdb.h (getnetbyaddr): Fix prototype.
	* netinet/ip.h: Replace old BSD-only types with generically defined
	old BSD types (u_char -> u_int8_t, etc).
	* netinet/tcp.h: Ditto.
	* netinet/udp.h: Ditto.

Signed-off-by: Corinna Vinschen <corinna@vinschen.de>

newlib/libc/include/sys/types.h

@@ -87,8 +87,7 @@ typedef	quad_t *	qaddr_t;
 #  define	quad		quad_t
 #endif
 
-/* These types are required by netinet/ *.h on Cygwin */
+#if __MISC_VISIBLE
-#if __MISC_VISIBLE || defined(__CYGWIN__)
 #ifndef _BSDTYPES_DEFINED
 /* also defined in mingw/gmon.h and in w32api/winsock[2].h */
 #ifndef __u_char_defined

winsup/cygwin/fhandler_socket.cc

@@ -2248,7 +2248,7 @@ fhandler_socket::ioctl (unsigned int cmd, void *p)
        use a type of the expected size.  Hopefully. */
     case FIOASYNC:
 #ifdef __x86_64__
-    case _IOW('f', 125, unsigned long):
+    case _IOW('f', 125, u_long):
 #endif
       res = WSAAsyncSelect (get_socket (), winmsg, WM_ASYNCIO,
 	      *(int *) p ? ASYNC_MASK : 0);
@@ -2261,7 +2261,7 @@ fhandler_socket::ioctl (unsigned int cmd, void *p)
       break;
     case FIONREAD:
 #ifdef __x86_64__
-    case _IOR('f', 127, unsigned long):
+    case _IOR('f', 127, u_long):
 #endif
       res = ioctlsocket (get_socket (), FIONREAD, (u_long *) p);
       if (res == SOCKET_ERROR)

winsup/cygwin/include/asm/socket.h

@@ -22,15 +22,15 @@ details. */
 #define _IOR(x,y,t)     (IOC_OUT|(((long)sizeof(t)&IOCPARM_MASK)<<16)|(x<<8)|y)
 #define _IOW(x,y,t)     (IOC_IN|(((long)sizeof(t)&IOCPARM_MASK)<<16)|(x<<8)|y)
 
-#define SIOCATMARK  _IOR('s',  7, u_long)  /* at oob mark? */
+#define SIOCATMARK  _IOR('s',  7, long)  /* at oob mark? */
-#define FIONREAD    _IOR('f', 127, u_long) /* get # bytes to read */
+#define FIONREAD    _IOR('f', 127, long) /* get # bytes to read */
 #define FIONBIO 0x8004667e /* To be compatible with termiost version */
-#define REAL_FIONBIO     _IOW('f', 126, u_long) /* set/clear non-blocking i/o */
+#define REAL_FIONBIO     _IOW('f', 126, long) /* set/clear non-blocking i/o */
-#define FIOASYNC    _IOW('f', 125, u_long) /* set/clear async i/o */
+#define FIOASYNC    _IOW('f', 125, long) /* set/clear async i/o */
-#define SIOCSHIWAT  _IOW('s',  0, u_long)  /* set high watermark */
+#define SIOCSHIWAT  _IOW('s',  0, long)  /* set high watermark */
-#define SIOCGHIWAT  _IOR('s',  1, u_long)  /* get high watermark */
+#define SIOCGHIWAT  _IOR('s',  1, long)  /* get high watermark */
-#define SIOCSLOWAT  _IOW('s',  2, u_long)  /* set low watermark */
+#define SIOCSLOWAT  _IOW('s',  2, long)  /* set low watermark */
-#define SIOCGLOWAT  _IOR('s',  3, u_long)  /* get low watermark */
+#define SIOCGLOWAT  _IOR('s',  3, long)  /* get low watermark */
 
 /* Needed for if queries */
 #define SIOCGIFCONF     _IOW('s', 100, struct ifconf) /* get if list */
@@ -57,7 +57,7 @@ details. */
 #define SO_USELOOPBACK  0x0040          /* bypass hardware when possible */
 #define SO_LINGER       0x0080          /* linger on close if data present */
 #define SO_OOBINLINE    0x0100          /* leave received OOB data in line */
-#define SO_DONTLINGER   (u_int)(~SO_LINGER)
+#define SO_DONTLINGER   (unsigned int)(~SO_LINGER)
 #define SO_PEERCRED	0x0200		/* same as getpeereid */
 
 /*

winsup/cygwin/include/netdb.h

@@ -218,7 +218,7 @@ struct hostent	*gethostbyaddr (const char *, int, int);
 struct hostent	*gethostbyname (const char *);
 struct hostent	*gethostbyname2 (const char *, int);
 struct hostent	*gethostent (void);
-struct netent	*getnetbyaddr (long, int); /* u_long? */
+struct netent	*getnetbyaddr (uint32_t, int);
 struct netent	*getnetbyname (const char *);
 struct netent	*getnetent (void);
 struct protoent	*getprotobyname (const char *);

winsup/cygwin/include/netinet/ip.h

@@ -52,28 +52,28 @@
  */
 struct ip {
 #ifdef _IP_VHL
-	u_char  ip_vhl;			/* version << 4 | header length >> 2 */
+	u_int8_t  ip_vhl;		/* version << 4 | header length >> 2 */
 #else
 #if __BYTE_ORDER == __LITTLE_ENDIAN
-	u_int   ip_hl:4,		/* header length */
+	unsigned int ip_hl:4,		/* header length */
 		     ip_v:4;		/* version */
 #endif
 #if __BYTE_ORDER == __BIG_ENDIAN
-	u_int   ip_v:4,			/* version */
+	unsigned int ip_v:4,		/* version */
 		     ip_hl:4;		/* header length */
 #endif
 #endif /* not _IP_VHL */
-	u_char  ip_tos;			/* type of service */
+	u_int_8   ip_tos;		/* type of service */
-	u_short ip_len;			/* total length */
+	u_int16_t ip_len;		/* total length */
-	u_short ip_id;			/* identification */
+	u_int16_t ip_id;		/* identification */
-	u_short ip_off;			/* fragment offset field */
+	u_int16_t ip_off;		/* fragment offset field */
 #define IP_RF 0x8000			/* reserved fragment flag */
 #define IP_DF 0x4000			/* dont fragment flag */
 #define IP_MF 0x2000			/* more fragments flag */
 #define IP_OFFMASK 0x1fff		/* mask for fragmenting bits */
-	u_char  ip_ttl;			/* time to live */
+	u_int8_t  ip_ttl;		/* time to live */
-	u_char  ip_p;			/* protocol */
+	u_int8_t  ip_p;			/* protocol */
-	u_short ip_sum;			/* checksum */
+	u_int16_t ip_sum;		/* checksum */
 	struct  in_addr ip_src,ip_dst;  /* source and dest address */
 };
 
@@ -208,15 +208,15 @@ struct ip {
  * Time stamp option structure.
  */
 struct  ip_timestamp {
-	u_char  ipt_code;		/* IPOPT_TS */
+	u_int8_t ipt_code;		/* IPOPT_TS */
-	u_char  ipt_len;		/* size of structure (variable) */
+	u_int8_t ipt_len;		/* size of structure (variable) */
-	u_char  ipt_ptr;		/* index of current entry */
+	u_int8_t ipt_ptr;		/* index of current entry */
 #if __BYTE_ORDER == __LITTLE_ENDIAN
-	u_int   ipt_flg:4,		/* flags, see below */
+	unsigned int ipt_flg:4,		/* flags, see below */
 		     ipt_oflw:4;	/* overflow counter */
 #endif
 #if __BYTE_ORDER == __BIG_ENDIAN
-	u_int   ipt_oflw:4,		/* overflow counter */
+	unsigned int ipt_oflw:4,	/* overflow counter */
 		     ipt_flg:4;		/* flags, see below */
 #endif
 	union ipt_timestamp {

winsup/cygwin/include/netinet/tcp.h

@@ -50,19 +50,19 @@ typedef u_int32_t tcp_cc;               /* connection count per rfc1644 */
  * Per RFC 793, September, 1981.
  */
 struct tcphdr {
-	u_short th_sport;               /* source port */
+	u_int16_t th_sport;             /* source port */
-	u_short th_dport;               /* destination port */
+	u_int16_t th_dport;             /* destination port */
 	tcp_seq   th_seq;               /* sequence number */
 	tcp_seq   th_ack;               /* acknowledgement number */
 #if __BYTE_ORDER == __LITTLE_ENDIAN
-	u_int   th_x2:4,                /* (unused) */
+	unsigned int  th_x2:4,          /* (unused) */
 		      th_off:4;         /* data offset */
 #endif
 #if __BYTE_ORDER == __BIG_ENDIAN
-	u_int   th_off:4,               /* data offset */
+	unsigned int  th_off:4,         /* data offset */
 		      th_x2:4;          /* (unused) */
 #endif
-	u_char  th_flags;
+	u_int8_t  th_flags;
 #define TH_FIN  0x01
 #define TH_SYN  0x02
 #define TH_RST  0x04
@@ -71,9 +71,9 @@ struct tcphdr {
 #define TH_URG  0x20
 #define TH_FLAGS (TH_FIN|TH_SYN|TH_RST|TH_ACK|TH_URG)
 
-	u_short th_win;                 /* window */
+	u_int16_t th_win;                 /* window */
-	u_short th_sum;                 /* checksum */
+	u_int16_t th_sum;                 /* checksum */
-	u_short th_urp;                 /* urgent pointer */
+	u_int16_t th_urp;                 /* urgent pointer */
 };
 
 #define TCPOPT_EOL              0

winsup/cygwin/include/netinet/udp.h

@@ -42,10 +42,10 @@
  * Per RFC 768, September, 1981.
  */
 struct udphdr {
-	u_short	uh_sport;		/* source port */
+	u_int16_t uh_sport;		/* source port */
-	u_short	uh_dport;		/* destination port */
+	u_int16_t uh_dport;		/* destination port */
-	u_short	uh_ulen;		/* udp length */
+	u_int16_t uh_ulen;		/* udp length */
-	u_short	uh_sum;			/* udp checksum */
+	u_int16_t uh_sum;		/* udp checksum */
 };
 
 #endif