update from main archive 960105 cvs/libc-970107 cvs/libc-970106

1 files changed, 114 insertions, 33 deletions

diff --git a/sysdeps/unix/sysv/linux/netinet/in.h b/sysdeps/unix/sysv/linux/netinet/in.h
index 91c88835db..3dea878a21 100644
--- a/sysdeps/unix/sysv/linux/netinet/in.h
+++ b/sysdeps/unix/sysv/linux/netinet/in.h
@@ -1,4 +1,4 @@
-/* Copyright (C) 1991, 92, 93, 94, 95, 96 Free Software Foundation, Inc.
+/* Copyright (C) 1991, 92, 93, 94, 95, 96, 97 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
 
    The GNU C Library is free software; you can redistribute it and/or modify
@@ -23,14 +23,25 @@
 
 #include <sys/socket.h>
 
-__BEGIN_DECLS
-#include <linux/in.h>
-__END_DECLS
 
-/* Standard well-known ports.  The use of these constants is
-   deprecated.  Instead use the contents of the file `/etc/services'
-   or similar databases by using the function getservbyname and
-   getservbyport.  */
+/* Standard well-defined IP protocols.  */
+enum
+  {
+    IPPROTO_IP = 0,	/* Dummy protocol for TCP.  */
+    IPPROTO_ICMP = 1,	/* Internet Control Message Protocol.  */
+    IPPROTO_IGMP = 2,	/* Internet Group Management Protocol. */
+    IPPROTO_IPIP = 4,	/* IPIP tunnels (older KA9Q tunnels use 94).  */
+    IPPROTO_TCP = 6,	/* Transmission Control Protocol.  */
+    IPPROTO_EGP = 8,	/* Exterior Gateway Protocol.  */
+    IPPROTO_PUP = 12,	/* PUP protocol.  */
+    IPPROTO_UDP = 17,	/* User Datagram Protocol.  */
+    IPPROTO_IDP = 22,	/* XNS IDP protocol.  */
+
+    IPPROTO_RAW = 255,	/* Raw IP packets.  */
+    IPPROTO_MAX
+  };
+
+/* Standard well-known ports.  */
 enum
   {
     IPPORT_ECHO = 7,		/* Echo service.  */
@@ -71,50 +82,120 @@ enum
   };
 
 
-/* Link numbers.  */
-#define	IMPLINK_IP		155
-#define	IMPLINK_LOWEXPER	156
-#define	IMPLINK_HIGHEXPER	158
+/* Internet address.  */
+struct in_addr
+  {
+    unsigned int s_addr;
+  };
+
+
+/* Definitions of the bits in an Internet address integer.
+
+   On subnets, host and network parts are found according to
+   the subnet mask, not these masks.  */
+
+#define	IN_CLASSA(a)		((((unsigned) (a)) & 0x80000000) == 0)
+#define	IN_CLASSA_NET		0xff000000
+#define	IN_CLASSA_NSHIFT	24
+#define	IN_CLASSA_HOST		(0xffffffff & ~IN_CLASSA_NET)
+#define	IN_CLASSA_MAX		128
+
+#define	IN_CLASSB(a)		((((unsigned) (a)) & 0xc0000000) == 0x80000000)
+#define	IN_CLASSB_NET		0xffff0000
+#define	IN_CLASSB_NSHIFT	16
+#define	IN_CLASSB_HOST		(0xffffffff & ~IN_CLASSB_NET)
+#define	IN_CLASSB_MAX		65536
+
+#define	IN_CLASSC(a)		((((unsigned) (a)) & 0xc0000000) == 0xc0000000)
+#define	IN_CLASSC_NET		0xffffff00
+#define	IN_CLASSC_NSHIFT	8
+#define	IN_CLASSC_HOST		(0xffffffff & ~IN_CLASSC_NET)
+
+#define	IN_CLASSD(a)		((((unsigned) (a)) & 0xf0000000) == 0xe0000000)
+#define	IN_MULTICAST(a)		IN_CLASSD(a)
+
+#define	IN_EXPERIMENTAL(a)	((((unsigned) (a)) & 0xe0000000) == 0xe0000000)
+#define	IN_BADCLASS(a)		((((unsigned) (a)) & 0xf0000000) == 0xf0000000)
+
+/* Address to accept any incoming messages.  */
+#define	INADDR_ANY		((unsigned) 0x00000000)
+/* Address to send to all hosts.  */
+#define	INADDR_BROADCAST	((unsigned) 0xffffffff)
+/* Address indicating an error return.  */
+#define	INADDR_NONE		0xffffffff
+
+/* Network number for local host loopback.  */
+#define	IN_LOOPBACKNET	127
+/* Address to loopback in software to local host.  */
+#ifndef INADDR_LOOPBACK
+#define	INADDR_LOOPBACK	0x7f000001	/* Internet address 127.0.0.1.  */
+#endif
+
 
 /* Get the definition of the macro to define the common sockaddr members.  */
 #include <sockaddrcom.h>
 
-/* Structure used to describe IP options for IP_OPTIONS and IP_RETOPTS.
-   The `ip_dst' field is used for the first-hop gateway when using a
-   source route (this gets put into the header proper).  */
+
+/* Structure describing an Internet socket address.  */
+struct sockaddr_in
+  {
+    __SOCKADDR_COMMON (sin_);
+    unsigned short int sin_port;	/* Port number.  */
+    struct in_addr sin_addr;		/* Internet address.  */
+
+    /* Pad to size of `struct sockaddr'.  */
+    unsigned char sin_zero[sizeof(struct sockaddr) -
+			   __SOCKADDR_COMMON_SIZE -
+			   sizeof(unsigned short int) -
+			   sizeof(struct in_addr)];
+  };
+
+
+/* Options for use with `getsockopt' and `setsockopt' at the IP level.
+   The first word in the comment at the right is the data type used;
+   "bool" means a boolean value stored in an `int'.  */
+#define	IP_TOS		   1	/* int; IP type of service and precedence.  */
+#define	IP_TTL		   2	/* int; IP time to live.  */
+#define	IP_HDRINCL	   3	/* int; Header is included with data.  */
+#define	IP_OPTIONS	   4	/* ip_opts; IP per-packet options.  */
+#define IP_MULTICAST_IF    32	/* in_addr; set/get IP multicast i/f */
+#define IP_MULTICAST_TTL   33	/* u_char; set/get IP multicast ttl */
+#define IP_MULTICAST_LOOP  34	/* i_char; set/get IP multicast loopback */
+#define IP_ADD_MEMBERSHIP  35	/* ip_mreq; add an IP group membership */
+#define IP_DROP_MEMBERSHIP 36	/* ip_mreq; drop an IP group membership */
+
+/* Structure used to describe IP options for IP_OPTIONS. The `ip_dst'
+   field is used for the first-hop gateway when using a source route
+   (this gets put into the header proper).  */
 struct ip_opts
   {
     struct in_addr ip_dst;	/* First hop; zero without source route.  */
     char ip_opts[40];		/* Actually variable in size.  */
   };
 
-__BEGIN_DECLS
+/* Structure used for IP_ADD_MEMBERSHIP and IP_DROP_MEMBERSHIP. */
+struct ip_mreq
+  {
+    struct in_addr imr_multiaddr;	/* IP multicast address of group */
+    struct in_addr imr_interface;	/* local IP address of interface */
+  };
 
 /* Functions to convert between host and network byte order.  */
 
-extern unsigned long int ntohl __P ((unsigned long int __long_word));
-extern unsigned short int ntohs __P ((unsigned short int __short_word));
-extern unsigned long int htonl __P ((unsigned long int __long_word));
-extern unsigned short int htons __P ((unsigned short int __short_word));
-
-/* Bind socket FD to a privileged IP address SIN.  */
-extern int bindresvport __P ((int __fd, struct sockaddr_in * __sock_in));
-
-__END_DECLS
+extern unsigned long int ntohl __P ((unsigned long int));
+extern unsigned short int ntohs __P ((unsigned short int));
+extern unsigned long int htonl __P ((unsigned long int));
+extern unsigned short int htons __P ((unsigned short int));
 
 #include <endian.h>
 
 #if __BYTE_ORDER == __BIG_ENDIAN
 /* The host byte order is the same as network byte order,
    so these functions are all just identity.  */
-# undef ntohl
-# define ntohl(x)	(x)
-# undef ntohs
-# define ntohs(x)	(x)
-# undef htonl
-# define htonl(x)	(x)
-# undef htons
-# define htons(x)	(x)
+#define	ntohl(x)	(x)
+#define	ntohs(x)	(x)
+#define	htonl(x)	(x)
+#define	htons(x)	(x)
 #endif
 
 #endif	/* netinet/in.h */