* ext/**/*.[ch]: removed trailing spaces.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@27437 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

13 files changed, 184 insertions, 184 deletions

diff --git a/ext/socket/addrinfo.h b/ext/socket/addrinfo.h
index 806b00e368..f0b977d79c 100644
--- a/ext/socket/addrinfo.h
+++ b/ext/socket/addrinfo.h
@@ -1,7 +1,7 @@
 /*
  * Copyright (C) 1995, 1996, 1997, 1998, and 1999 WIDE Project.
  * All rights reserved.
- * 
+ *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions
  * are met:
@@ -13,7 +13,7 @@
  * 3. Neither the name of the project nor the names of its contributors
  *    may be used to endorse or promote products derived from this software
  *    without specific prior written permission.
- * 
+ *
  * THIS SOFTWARE IS PROVIDED BY THE PROJECT AND CONTRIBUTORS ``AS IS'' AND
  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
diff --git a/ext/socket/ancdata.c b/ext/socket/ancdata.c
index a1d12190f7..a42aea73e4 100644
--- a/ext/socket/ancdata.c
+++ b/ext/socket/ancdata.c
@@ -65,7 +65,7 @@ ip_cmsg_type_to_sym(int level, int cmsg_type)
  *   p Socket::AncillaryData.new(:INET, :TCP, :NODELAY, "")
  *   #=> #<Socket::AncillaryData: INET TCP NODELAY "">
  *
- *   p Socket::AncillaryData.new(:INET6, :IPV6, :PKTINFO, "")     
+ *   p Socket::AncillaryData.new(:INET6, :IPV6, :PKTINFO, "")
  *   #=> #<Socket::AncillaryData: INET6 IPV6 PKTINFO "">
  *
  */
@@ -228,7 +228,7 @@ ancillary_s_unix_rights(int argc, VALUE *argv, VALUE klass)
  *
  * returns the array of IO objects for SCM_RIGHTS control message in UNIX domain socket.
  *
- * The class of the IO objects in the array is IO or Socket. 
+ * The class of the IO objects in the array is IO or Socket.
  *
  * The array is attached to _ancillarydata_ when it is instantiated.
  * For example, BasicSocket#recvmsg attach the array when
@@ -356,7 +356,7 @@ ancillary_timestamp(VALUE self)
  *
  * Creates a new Socket::AncillaryData object which contains a int as data.
  *
- * The size and endian is dependent on the host. 
+ * The size and endian is dependent on the host.
  *
  *   p Socket::AncillaryData.int(:UNIX, :SOCKET, :RIGHTS, STDERR.fileno)
  *   #=> #<Socket::AncillaryData: UNIX SOCKET RIGHTS 2>
@@ -377,7 +377,7 @@ ancillary_s_int(VALUE klass, VALUE vfamily, VALUE vlevel, VALUE vtype, VALUE int
  *
  * Returns the data in _ancillarydata_ as an int.
  *
- * The size and endian is dependent on the host. 
+ * The size and endian is dependent on the host.
  *
  *   ancdata = Socket::AncillaryData.int(:UNIX, :SOCKET, :RIGHTS, STDERR.fileno)
  *   p ancdata.int #=> 2
@@ -592,7 +592,7 @@ extract_ipv6_pktinfo(VALUE self, struct in6_pktinfo *pktinfo_ptr, struct sockadd
  *
  * IPV6_PKTINFO is defined by RFC 3542.
  *
- *   addr = Addrinfo.ip("::1")      
+ *   addr = Addrinfo.ip("::1")
  *   ifindex = 0
  *   ancdata = Socket::AncillaryData.ipv6_pktinfo(addr, ifindex)
  *   p ancdata.ipv6_pktinfo #=> [#<Addrinfo: ::1>, 0]
@@ -778,7 +778,7 @@ anc_inspect_ip_recvdstaddr(int level, int type, VALUE data, VALUE ret)
 {
     if (level == IPPROTO_IP && type == IP_RECVDSTADDR &&
         RSTRING_LEN(data) == sizeof(struct in_addr)) {
-        struct in_addr addr; 
+        struct in_addr addr;
         char addrbuf[INET_ADDRSTRLEN];
         memcpy(&addr, RSTRING_PTR(data), sizeof(addr));
         if (inet_ntop(AF_INET, &addr, addrbuf, sizeof(addrbuf)) == NULL)
@@ -829,7 +829,7 @@ anc_inspect_ipv6_pktinfo(int level, int type, VALUE data, VALUE ret)
     if (level == IPPROTO_IPV6 && type == IPV6_PKTINFO &&
         RSTRING_LEN(data) == sizeof(struct in6_pktinfo)) {
         struct in6_pktinfo *pktinfo = (struct in6_pktinfo *)RSTRING_PTR(data);
-        struct in6_addr addr; 
+        struct in6_addr addr;
         unsigned int ifindex;
         char addrbuf[INET6_ADDRSTRLEN], ifbuf[IFNAMSIZ];
         memcpy(&addr, &pktinfo->ipi6_addr, sizeof(addr));
@@ -1033,7 +1033,7 @@ ancillary_inspect(VALUE self)
 #        endif
         }
         break;
-       
+
       case AF_INET:
 #ifdef INET6
       case AF_INET6:
@@ -1211,18 +1211,18 @@ bsock_sendmsg_internal(int argc, VALUE *argv, VALUE sock, int nonblock)
 	if (last_pad) {
             /*
              * This code removes the last padding from msg_controllen.
-             * 
+             *
              * 4.3BSD-Reno reject the padding for SCM_RIGHTS. (There was no 64bit environments in those days?)
              * RFC 2292 require the padding.
              * RFC 3542 relaxes the condition - implementation must accept both as valid.
-             * 
+             *
              * Actual problems:
              *
              * - NetBSD 4.0.1
              *   SCM_RIGHTS with padding causes EINVAL
              *   IPV6_PKTINFO without padding causes "page fault trap"
              *     http://www.netbsd.org/cgi-bin/query-pr-single.pl?number=40661
-             *  
+             *
              * - OpenBSD 4.4
              *   IPV6_PKTINFO without padding causes EINVAL
              *
@@ -1317,7 +1317,7 @@ bsock_sendmsg_internal(int argc, VALUE *argv, VALUE sock, int nonblock)
  * sendmsg can be used to implement send_io as follows:
  *
  *   # use Socket::AncillaryData.
- *   ancdata = Socket::AncillaryData.int(:UNIX, :SOCKET, :RIGHTS, io.fileno)       
+ *   ancdata = Socket::AncillaryData.int(:UNIX, :SOCKET, :RIGHTS, io.fileno)
  *   sock.sendmsg("a", 0, nil, ancdata)
  *
  *   # use 3-element array.
diff --git a/ext/socket/basicsocket.c b/ext/socket/basicsocket.c
index a4c42ee848..0316f9965a 100644
--- a/ext/socket/basicsocket.c
+++ b/ext/socket/basicsocket.c
@@ -57,7 +57,7 @@ bsock_s_for_fd(VALUE klass, VALUE fd)
  *     s2.close
  *     p s1.read          #=> "pong\n"
  *   }
- *   
+ *
  */
 static VALUE
 bsock_shutdown(int argc, VALUE *argv, VALUE sock)
@@ -179,15 +179,15 @@ bsock_close_write(VALUE sock)
  *
  * Some socket options are integers with boolean values, in this case
  * #setsockopt could be called like this:
- *   sock.setsockopt(:SOCKET, :REUSEADDR, true) 
+ *   sock.setsockopt(:SOCKET, :REUSEADDR, true)
  *   sock.setsockopt(Socket::SOL_SOCKET,Socket::SO_REUSEADDR, true)
  *   sock.setsockopt(Socket::Option.bool(:INET, :SOCKET, :REUSEADDR, true))
  *
  * Some socket options are integers with numeric values, in this case
  * #setsockopt could be called like this:
- *   sock.setsockopt(:IP, :TTL, 255)  
+ *   sock.setsockopt(:IP, :TTL, 255)
  *   sock.setsockopt(Socket::IPPROTO_IP, Socket::IP_TTL, 255)
- *   sock.setsockopt(Socket::Option.int(:INET, :IP, :TTL, 255))     
+ *   sock.setsockopt(Socket::Option.int(:INET, :IP, :TTL, 255))
  *
  * Option values may be structs. Passing them can be complex as it involves
  * examining your system headers to determine the correct definition. An
@@ -196,7 +196,7 @@ bsock_close_write(VALUE sock)
  *     struct  in_addr imr_multiaddr;
  *     struct  in_addr imr_interface;
  *   };
- * 
+ *
  * In this case #setsockopt could be called like this:
  *   optval = IPAddr.new("224.0.0.251").hton +
  *            IPAddr.new(Socket::INADDR_ANY, Socket::AF_INET).hton
@@ -303,7 +303,7 @@ bsock_setsockopt(int argc, VALUE *argv, VALUE sock)
  *     int l_onoff;
  *     int l_linger;
  *   };
- * 
+ *
  * In this case #getsockopt could be called like this:
  *
  *   # Socket::Option knows linger structure.
@@ -647,7 +647,7 @@ bsock_recv(int argc, VALUE *argv, VALUE sock)
  * call-seq:
  * 	basicsocket.recv_nonblock(maxlen) => mesg
  * 	basicsocket.recv_nonblock(maxlen, flags) => mesg
- * 
+ *
  * Receives up to _maxlen_ bytes from +socket+ using recvfrom(2) after
  * O_NONBLOCK is set for the underlying file descriptor.
  * _flags_ is zero or more of the +MSG_+ options.
@@ -656,11 +656,11 @@ bsock_recv(int argc, VALUE *argv, VALUE sock)
  * When recvfrom(2) returns 0, Socket#recv_nonblock returns
  * an empty string as data.
  * The meaning depends on the socket: EOF on TCP, empty packet on UDP, etc.
- * 
+ *
  * === Parameters
  * * +maxlen+ - the number of bytes to receive from the socket
- * * +flags+ - zero or more of the +MSG_+ options 
- * 
+ * * +flags+ - zero or more of the +MSG_+ options
+ *
  * === Example
  * 	serv = TCPServer.new("127.0.0.1", 0)
  * 	af, port, host, addr = serv.addr
@@ -675,7 +675,7 @@ bsock_recv(int argc, VALUE *argv, VALUE sock)
  * 	end
  *
  * Refer to Socket#recvfrom for the exceptions that may be thrown if the call
- * to _recv_nonblock_ fails. 
+ * to _recv_nonblock_ fails.
  *
  * BasicSocket#recv_nonblock may raise any error corresponding to recvfrom(2) failure,
  * including Errno::EWOULDBLOCK.
diff --git a/ext/socket/getaddrinfo.c b/ext/socket/getaddrinfo.c
index d5ef517943..a4f01c0405 100644
--- a/ext/socket/getaddrinfo.c
+++ b/ext/socket/getaddrinfo.c
@@ -1,7 +1,7 @@
 /*
  * Copyright (C) 1995, 1996, 1997, and 1998 WIDE Project.
  * All rights reserved.
- * 
+ *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions
  * are met:
@@ -13,7 +13,7 @@
  * 3. Neither the name of the project nor the names of its contributors
  *    may be used to endorse or promote products derived from this software
  *    without specific prior written permission.
- * 
+ *
  * THIS SOFTWARE IS PROVIDED BY THE PROJECT AND CONTRIBUTORS ``AS IS'' AND
  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
@@ -45,7 +45,7 @@
 #include <sys/types.h>
 #ifndef _WIN32
 #include <sys/param.h>
-#if defined(__BEOS__) && !defined(__HAIKU__) && !defined(BONE) 
+#if defined(__BEOS__) && !defined(__HAIKU__) && !defined(BONE)
 # include <net/socket.h>
 #else
 # include <sys/socket.h>
@@ -97,7 +97,7 @@ static const char in_addrany[] = { 0, 0, 0, 0 };
 static const char in6_addrany[] = {
 	0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0
 };
-static const char in_loopback[] = { 127, 0, 0, 1 }; 
+static const char in_loopback[] = { 127, 0, 0, 1 };
 static const char in6_loopback[] = {
 	0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1
 };
@@ -502,7 +502,7 @@ getaddrinfo(const char *hostname, const char *servname, const struct addrinfo *h
 				 */
 				get_name(pton, &afdl[i], &top, pton, pai, port);
 				goto good;
-			} else 
+			} else
 				ERR(EAI_FAMILY);	/*xxx*/
 		}
 	}
diff --git a/ext/socket/getnameinfo.c b/ext/socket/getnameinfo.c
index 7f090e9655..fca3bcfcc8 100644
--- a/ext/socket/getnameinfo.c
+++ b/ext/socket/getnameinfo.c
@@ -1,7 +1,7 @@
 /*
  * Copyright (C) 1995, 1996, 1997, and 1998 WIDE Project.
  * All rights reserved.
- * 
+ *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions
  * are met:
@@ -13,7 +13,7 @@
  * 3. Neither the name of the project nor the names of its contributors
  *    may be used to endorse or promote products derived from this software
  *    without specific prior written permission.
- * 
+ *
  * THIS SOFTWARE IS PROVIDED BY THE PROJECT AND CONTRIBUTORS ``AS IS'' AND
  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
diff --git a/ext/socket/ipsocket.c b/ext/socket/ipsocket.c
index b6b2426e97..68ff5a1301 100644
--- a/ext/socket/ipsocket.c
+++ b/ext/socket/ipsocket.c
@@ -159,10 +159,10 @@ rsock_revlookup_flag(VALUE revlookup, int *norevlookup)
 
 /*
  * call-seq:
- *   ipsocket.addr([reverse_lookup]) => [address_family, port, hostname, numeric_address] 
+ *   ipsocket.addr([reverse_lookup]) => [address_family, port, hostname, numeric_address]
  *
  * Returns the local address as an array which contains
- * address_family, port, hostname and numeric_address. 
+ * address_family, port, hostname and numeric_address.
  *
  * If +reverse_lookup+ is +true+ or +:hostname+,
  * hostname is obtained from numeric_address using reverse lookup.
@@ -199,10 +199,10 @@ ip_addr(int argc, VALUE *argv, VALUE sock)
 
 /*
  * call-seq:
- *   ipsocket.peeraddr([reverse_lookup]) => [address_family, port, hostname, numeric_address] 
+ *   ipsocket.peeraddr([reverse_lookup]) => [address_family, port, hostname, numeric_address]
  *
  * Returns the remote address as an array which contains
- * address_family, port, hostname and numeric_address. 
+ * address_family, port, hostname and numeric_address.
  * It is defined for connection oriented socket such as TCPSocket.
  *
  * If +reverse_lookup+ is +true+ or +:hostname+,
@@ -257,7 +257,7 @@ ip_peeraddr(int argc, VALUE *argv, VALUE sock)
  *   u2 = UDPSocket.new
  *   u2.send "uuuu", 0, "127.0.0.1", 4913
  *   p u1.recvfrom(10) #=> ["uuuu", ["AF_INET", 33230, "localhost", "127.0.0.1"]]
- *   
+ *
  */
 static VALUE
 ip_recvfrom(int argc, VALUE *argv, VALUE sock)
diff --git a/ext/socket/option.c b/ext/socket/option.c
index dde8b416f2..23afbe21d5 100644
--- a/ext/socket/option.c
+++ b/ext/socket/option.c
@@ -148,7 +148,7 @@ sockopt_data(VALUE self)
  *
  * Creates a new Socket::Option object which contains an int as data.
  *
- * The size and endian is dependent on the platform. 
+ * The size and endian is dependent on the platform.
  *
  *   p Socket::Option.int(:INET, :SOCKET, :KEEPALIVE, 1)
  *   #=> #<Socket::Option: INET SOCKET KEEPALIVE 1>
@@ -169,7 +169,7 @@ sockopt_s_int(VALUE klass, VALUE vfamily, VALUE vlevel, VALUE voptname, VALUE vi
  *
  * Returns the data in _sockopt_ as an int.
  *
- * The size and endian is dependent on the platform. 
+ * The size and endian is dependent on the platform.
  *
  *   sockopt = Socket::Option.int(:INET, :SOCKET, :KEEPALIVE, 1)
  *   p sockopt.int => 1
@@ -280,7 +280,7 @@ sockopt_linger(VALUE self)
     VALUE vonoff, vsecs;
 
     if (level != SOL_SOCKET || optname != SO_LINGER)
-        rb_raise(rb_eTypeError, "linger socket option expected"); 
+        rb_raise(rb_eTypeError, "linger socket option expected");
     if (RSTRING_LEN(data) != sizeof(l))
         rb_raise(rb_eTypeError, "size differ.  expected as sizeof(struct linger)=%d but %ld",
                  (int)sizeof(struct linger), (long)RSTRING_LEN(data));
diff --git a/ext/socket/raddrinfo.c b/ext/socket/raddrinfo.c
index b035f2ed16..8f89240f45 100644
--- a/ext/socket/raddrinfo.c
+++ b/ext/socket/raddrinfo.c
@@ -743,7 +743,7 @@ init_unix_addrinfo(rb_addrinfo_t *rai, VALUE path, int socktype)
 
     un.sun_family = AF_UNIX;
     memcpy((void*)&un.sun_path, RSTRING_PTR(path), RSTRING_LEN(path));
-   
+
     init_addrinfo(rai, (struct sockaddr *)&un, sizeof(un), PF_UNIX, socktype, 0, Qnil, Qnil);
 }
 #endif
@@ -766,9 +766,9 @@ init_unix_addrinfo(rb_addrinfo_t *rai, VALUE path, int socktype)
  * Socket.sockaddr_in or Socket.unpack_sockaddr_un.
  *
  * sockaddr examples:
- * - ["AF_INET", 46102, "localhost.localdomain", "127.0.0.1"] 
- * - ["AF_INET6", 42304, "ip6-localhost", "::1"] 
- * - ["AF_UNIX", "/tmp/sock"] 
+ * - ["AF_INET", 46102, "localhost.localdomain", "127.0.0.1"]
+ * - ["AF_INET6", 42304, "ip6-localhost", "::1"]
+ * - ["AF_UNIX", "/tmp/sock"]
  * - Socket.sockaddr_in("smtp", "2001:DB8::1")
  * - Socket.sockaddr_in(80, "172.18.22.42")
  * - Socket.sockaddr_in(80, "www.ruby-lang.org")
@@ -1374,7 +1374,7 @@ addrinfo_protocol(VALUE self)
  *
  * returns the socket address as packed struct sockaddr string.
  *
- *   Addrinfo.tcp("localhost", 80).to_sockaddr                    
+ *   Addrinfo.tcp("localhost", 80).to_sockaddr
  *   #=> "\x02\x00\x00P\x7F\x00\x00\x01\x00\x00\x00\x00\x00\x00\x00\x00"
  *
  */
@@ -1928,11 +1928,11 @@ addrinfo_unix_path(VALUE self)
  * nodename or service can be nil if no conversion intended.
  *
  * family, socktype and protocol are hint for preferred protocol.
- * If the result will be used for a socket with SOCK_STREAM, 
+ * If the result will be used for a socket with SOCK_STREAM,
  * SOCK_STREAM should be specified as socktype.
  * If so, Addrinfo.getaddrinfo returns addrinfo list appropriate for SOCK_STREAM.
  * If they are omitted or nil is given, the result is not restricted.
- * 
+ *
  * Similarly, PF_INET6 as family restricts for IPv6.
  *
  * flags should be bitwise OR of Socket::AI_??? constants.
diff --git a/ext/socket/socket.c b/ext/socket/socket.c
index 204f81a9c2..1c499d9f08 100644
--- a/ext/socket/socket.c
+++ b/ext/socket/socket.c
@@ -135,13 +135,13 @@ rsock_sock_s_socketpair(int argc, VALUE *argv, VALUE klass)
 /*
  * call-seq:
  * 	socket.connect(remote_sockaddr) => 0
- * 
+ *
  * Requests a connection to be made on the given +remote_sockaddr+. Returns 0 if
  * successful, otherwise an exception is raised.
- *  
+ *
  * === Parameter
  * * +remote_sockaddr+ - the +struct+ sockaddr contained in a string or Addrinfo object
- * 
+ *
  * === Example:
  * 	# Pull down Google's web page
  * 	require 'socket'
@@ -150,17 +150,17 @@ rsock_sock_s_socketpair(int argc, VALUE *argv, VALUE klass)
  * 	sockaddr = Socket.pack_sockaddr_in( 80, 'www.google.com' )
  * 	socket.connect( sockaddr )
  * 	socket.write( "GET / HTTP/1.0\r\n\r\n" )
- * 	results = socket.read 
- * 
+ * 	results = socket.read
+ *
  * === Unix-based Exceptions
- * On unix-based systems the following system exceptions may be raised if 
+ * On unix-based systems the following system exceptions may be raised if
  * the call to _connect_ fails:
  * * Errno::EACCES - search permission is denied for a component of the prefix
  *   path or write access to the +socket+ is denied
  * * Errno::EADDRINUSE - the _sockaddr_ is already in use
  * * Errno::EADDRNOTAVAIL - the specified _sockaddr_ is not available from the
  *   local machine
- * * Errno::EAFNOSUPPORT - the specified _sockaddr_ is not a valid address for 
+ * * Errno::EAFNOSUPPORT - the specified _sockaddr_ is not a valid address for
  *   the address family of the specified +socket+
  * * Errno::EALREADY - a connection is already in progress for the specified
  *   socket
@@ -169,7 +169,7 @@ rsock_sock_s_socketpair(int argc, VALUE *argv, VALUE klass)
  *   refused the connection request
  * * Errno::ECONNRESET - the remote host reset the connection request
  * * Errno::EFAULT - the _sockaddr_ cannot be accessed
- * * Errno::EHOSTUNREACH - the destination host cannot be reached (probably 
+ * * Errno::EHOSTUNREACH - the destination host cannot be reached (probably
  *   because the host is down or a remote router cannot reach it)
  * * Errno::EINPROGRESS - the O_NONBLOCK is set for the +socket+ and the
  *   connection cannot be immediately established; the connection will be
@@ -179,46 +179,46 @@ rsock_sock_s_socketpair(int argc, VALUE *argv, VALUE klass)
  *   asynchronously
  * * Errno::EISCONN - the specified +socket+ is already connected
  * * Errno::EINVAL - the address length used for the _sockaddr_ is not a valid
- *   length for the address family or there is an invalid family in _sockaddr_ 
+ *   length for the address family or there is an invalid family in _sockaddr_
  * * Errno::ENAMETOOLONG - the pathname resolved had a length which exceeded
  *   PATH_MAX
  * * Errno::ENETDOWN - the local interface used to reach the destination is down
  * * Errno::ENETUNREACH - no route to the network is present
  * * Errno::ENOBUFS - no buffer space is available
- * * Errno::ENOSR - there were insufficient STREAMS resources available to 
+ * * Errno::ENOSR - there were insufficient STREAMS resources available to
  *   complete the operation
  * * Errno::ENOTSOCK - the +socket+ argument does not refer to a socket
  * * Errno::EOPNOTSUPP - the calling +socket+ is listening and cannot be connected
- * * Errno::EPROTOTYPE - the _sockaddr_ has a different type than the socket 
+ * * Errno::EPROTOTYPE - the _sockaddr_ has a different type than the socket
  *   bound to the specified peer address
  * * Errno::ETIMEDOUT - the attempt to connect time out before a connection
  *   was made.
- * 
+ *
  * On unix-based systems if the address family of the calling +socket+ is
  * AF_UNIX the follow exceptions may be raised if the call to _connect_
  * fails:
- * * Errno::EIO - an i/o error occurred while reading from or writing to the 
+ * * Errno::EIO - an i/o error occurred while reading from or writing to the
  *   file system
  * * Errno::ELOOP - too many symbolic links were encountered in translating
  *   the pathname in _sockaddr_
- * * Errno::ENAMETOOLLONG - a component of a pathname exceeded NAME_MAX 
+ * * Errno::ENAMETOOLLONG - a component of a pathname exceeded NAME_MAX
  *   characters, or an entire pathname exceeded PATH_MAX characters
  * * Errno::ENOENT - a component of the pathname does not name an existing file
  *   or the pathname is an empty string
  * * Errno::ENOTDIR - a component of the path prefix of the pathname in _sockaddr_
- *   is not a directory 
- * 
+ *   is not a directory
+ *
  * === Windows Exceptions
- * On Windows systems the following system exceptions may be raised if 
+ * On Windows systems the following system exceptions may be raised if
  * the call to _connect_ fails:
  * * Errno::ENETDOWN - the network is down
  * * Errno::EADDRINUSE - the socket's local address is already in use
  * * Errno::EINTR - the socket was cancelled
  * * Errno::EINPROGRESS - a blocking socket is in progress or the service provider
- *   is still processing a callback function. Or a nonblocking connect call is 
+ *   is still processing a callback function. Or a nonblocking connect call is
  *   in progress on the +socket+.
  * * Errno::EALREADY - see Errno::EINVAL
- * * Errno::EADDRNOTAVAIL - the remote address is not a valid address, such as 
+ * * Errno::EADDRNOTAVAIL - the remote address is not a valid address, such as
  *   ADDR_ANY TODO check ADDRANY TO INADDR_ANY
  * * Errno::EAFNOSUPPORT - addresses in the specified family cannot be used with
  *   with this +socket+
@@ -234,11 +234,11 @@ rsock_sock_s_socketpair(int argc, VALUE *argv, VALUE klass)
  * * Errno::ENOTSOCK - the +socket+ argument does not refer to a socket
  * * Errno::ETIMEDOUT - the attempt to connect time out before a connection
  *   was made.
- * * Errno::EWOULDBLOCK - the socket is marked as nonblocking and the 
+ * * Errno::EWOULDBLOCK - the socket is marked as nonblocking and the
  *   connection cannot be completed immediately
- * * Errno::EACCES - the attempt to connect the datagram socket to the 
+ * * Errno::EACCES - the attempt to connect the datagram socket to the
  *   broadcast address failed
- * 
+ *
  * === See
  * * connect manual pages on unix-based systems
  * * connect function in Microsoft's Winsock functions reference
@@ -264,14 +264,14 @@ sock_connect(VALUE sock, VALUE addr)
 /*
  * call-seq:
  * 	socket.connect_nonblock(remote_sockaddr) => 0
- * 
+ *
  * Requests a connection to be made on the given +remote_sockaddr+ after
  * O_NONBLOCK is set for the underlying file descriptor.
  * Returns 0 if successful, otherwise an exception is raised.
- *  
+ *
  * === Parameter
  * * +remote_sockaddr+ - the +struct+ sockaddr contained in a string or Addrinfo object
- * 
+ *
  * === Example:
  * 	# Pull down Google's web page
  * 	require 'socket'
@@ -283,15 +283,15 @@ sock_connect(VALUE sock, VALUE addr)
  * 	rescue IO::WaitWritable
  * 	  IO.select(nil, [socket]) # wait 3-way handshake completion
  * 	  begin
- * 	    socket.connect_nonblock(sockaddr) # check connection failure 
+ * 	    socket.connect_nonblock(sockaddr) # check connection failure
  * 	  rescue Errno::EISCONN
  * 	  end
  * 	end
  * 	socket.write("GET / HTTP/1.0\r\n\r\n")
- * 	results = socket.read 
- * 
+ * 	results = socket.read
+ *
  * Refer to Socket#connect for the exceptions that may be thrown if the call
- * to _connect_nonblock_ fails. 
+ * to _connect_nonblock_ fails.
  *
  * Socket#connect_nonblock may raise any error corresponding to connect(2) failure,
  * including Errno::EINPROGRESS.
@@ -326,9 +326,9 @@ sock_connect_nonblock(VALUE sock, VALUE addr)
 /*
  * call-seq:
  * 	socket.bind(local_sockaddr) => 0
- * 
+ *
  * Binds to the given local address.
- * 
+ *
  * === Parameter
  * * +local_sockaddr+ - the +struct+ sockaddr contained in a string or an Addrinfo object
  *
@@ -345,9 +345,9 @@ sock_connect_nonblock(VALUE sock, VALUE addr)
  * 	socket = Socket.new( AF_INET, SOCK_STREAM, 0 )
  * 	sockaddr = Socket.pack_sockaddr_in( 2200, 'localhost' )
  * 	socket.bind( sockaddr )
- *  
+ *
  * === Unix-based Exceptions
- * On unix-based based systems the following system exceptions may be raised if 
+ * On unix-based based systems the following system exceptions may be raised if
  * the call to _bind_ fails:
  * * Errno::EACCES - the specified _sockaddr_ is protected and the current
  *   user does not have permission to bind to it
@@ -358,7 +358,7 @@ sock_connect_nonblock(VALUE sock, VALUE addr)
  *   the family of the calling +socket+
  * * Errno::EBADF - the _sockaddr_ specified is not a valid file descriptor
  * * Errno::EFAULT - the _sockaddr_ argument cannot be accessed
- * * Errno::EINVAL - the +socket+ is already bound to an address, and the 
+ * * Errno::EINVAL - the +socket+ is already bound to an address, and the
  *   protocol does not support binding to the new _sockaddr_ or the +socket+
  *   has been shut down.
  * * Errno::EINVAL - the address length is not a valid length for the address
@@ -366,12 +366,12 @@ sock_connect_nonblock(VALUE sock, VALUE addr)
  * * Errno::ENAMETOOLONG - the pathname resolved had a length which exceeded
  *   PATH_MAX
  * * Errno::ENOBUFS - no buffer space is available
- * * Errno::ENOSR - there were insufficient STREAMS resources available to 
+ * * Errno::ENOSR - there were insufficient STREAMS resources available to
  *   complete the operation
  * * Errno::ENOTSOCK - the +socket+ does not refer to a socket
- * * Errno::EOPNOTSUPP - the socket type of the +socket+ does not support 
+ * * Errno::EOPNOTSUPP - the socket type of the +socket+ does not support
  *   binding to an address
- * 
+ *
  * On unix-based based systems if the address family of the calling +socket+ is
  * Socket::AF_UNIX the follow exceptions may be raised if the call to _bind_
  * fails:
@@ -382,19 +382,19 @@ sock_connect_nonblock(VALUE sock, VALUE addr)
  * * Errno::EIO - an i/o error occurred
  * * Errno::ELOOP - too many symbolic links were encountered in translating
  *   the pathname in _sockaddr_
- * * Errno::ENAMETOOLLONG - a component of a pathname exceeded NAME_MAX 
+ * * Errno::ENAMETOOLLONG - a component of a pathname exceeded NAME_MAX
  *   characters, or an entire pathname exceeded PATH_MAX characters
  * * Errno::ENOENT - a component of the pathname does not name an existing file
  *   or the pathname is an empty string
  * * Errno::ENOTDIR - a component of the path prefix of the pathname in _sockaddr_
  *   is not a directory
  * * Errno::EROFS - the name would reside on a read only filesystem
- * 
+ *
  * === Windows Exceptions
- * On Windows systems the following system exceptions may be raised if 
+ * On Windows systems the following system exceptions may be raised if
  * the call to _bind_ fails:
  * * Errno::ENETDOWN-- the network is down
- * * Errno::EACCES - the attempt to connect the datagram socket to the 
+ * * Errno::EACCES - the attempt to connect the datagram socket to the
  *   broadcast address failed
  * * Errno::EADDRINUSE - the socket's local address is already in use
  * * Errno::EADDRNOTAVAIL - the specified address is not a valid address for this
@@ -404,11 +404,11 @@ sock_connect_nonblock(VALUE sock, VALUE addr)
  * * Errno::EINVAL - the +socket+ is already bound to an address
  * * Errno::ENOBUFS - no buffer space is available
  * * Errno::ENOTSOCK - the +socket+ argument does not refer to a socket
- * 
+ *
  * === See
  * * bind manual pages on unix-based systems
  * * bind function in Microsoft's Winsock functions reference
- */ 
+ */
 static VALUE
 sock_bind(VALUE sock, VALUE addr)
 {
@@ -425,14 +425,14 @@ sock_bind(VALUE sock, VALUE addr)
 /*
  * call-seq:
  * 	socket.listen( int ) => 0
- * 
+ *
  * Listens for connections, using the specified +int+ as the backlog. A call
- * to _listen_ only applies if the +socket+ is of type SOCK_STREAM or 
+ * to _listen_ only applies if the +socket+ is of type SOCK_STREAM or
  * SOCK_SEQPACKET.
- * 
+ *
  * === Parameter
  * * +backlog+ - the maximum length of the queue for pending connections.
- * 
+ *
  * === Example 1
  * 	require 'socket'
  * 	include Socket::Constants
@@ -440,43 +440,43 @@ sock_bind(VALUE sock, VALUE addr)
  * 	sockaddr = Socket.pack_sockaddr_in( 2200, 'localhost' )
  * 	socket.bind( sockaddr )
  * 	socket.listen( 5 )
- * 
+ *
  * === Example 2 (listening on an arbitrary port, unix-based systems only):
  * 	require 'socket'
  * 	include Socket::Constants
  * 	socket = Socket.new( AF_INET, SOCK_STREAM, 0 )
  * 	socket.listen( 1 )
- * 
+ *
  * === Unix-based Exceptions
  * On unix based systems the above will work because a new +sockaddr+ struct
  * is created on the address ADDR_ANY, for an arbitrary port number as handed
  * off by the kernel. It will not work on Windows, because Windows requires that
  * the +socket+ is bound by calling _bind_ before it can _listen_.
- * 
+ *
  * If the _backlog_ amount exceeds the implementation-dependent maximum
  * queue length, the implementation's maximum queue length will be used.
- * 
+ *
  * On unix-based based systems the following system exceptions may be raised if the
  * call to _listen_ fails:
  * * Errno::EBADF - the _socket_ argument is not a valid file descriptor
- * * Errno::EDESTADDRREQ - the _socket_ is not bound to a local address, and 
+ * * Errno::EDESTADDRREQ - the _socket_ is not bound to a local address, and
  *   the protocol does not support listening on an unbound socket
  * * Errno::EINVAL - the _socket_ is already connected
  * * Errno::ENOTSOCK - the _socket_ argument does not refer to a socket
  * * Errno::EOPNOTSUPP - the _socket_ protocol does not support listen
  * * Errno::EACCES - the calling process does not have appropriate privileges
  * * Errno::EINVAL - the _socket_ has been shut down
- * * Errno::ENOBUFS - insufficient resources are available in the system to 
+ * * Errno::ENOBUFS - insufficient resources are available in the system to
  *   complete the call
- * 
+ *
  * === Windows Exceptions
- * On Windows systems the following system exceptions may be raised if 
+ * On Windows systems the following system exceptions may be raised if
  * the call to _listen_ fails:
  * * Errno::ENETDOWN - the network is down
- * * Errno::EADDRINUSE - the socket's local address is already in use. This 
+ * * Errno::EADDRINUSE - the socket's local address is already in use. This
  *   usually occurs during the execution of _bind_ but could be delayed
  *   if the call to _bind_ was to a partially wildcard address (involving
- *   ADDR_ANY) and if a specific address needs to be committed at the 
+ *   ADDR_ANY) and if a specific address needs to be committed at the
  *   time of the call to _listen_
  * * Errno::EINPROGRESS - a Windows Sockets 1.1 call is in progress or the
  *   service provider is still processing a callback function
@@ -487,7 +487,7 @@ sock_bind(VALUE sock, VALUE addr)
  * * Errno::ENOTSOC - +socket+ is not a socket
  * * Errno::EOPNOTSUPP - the referenced +socket+ is not a type that supports
  *   the _listen_ method
- * 
+ *
  * === See
  * * listen manual pages on unix-based systems
  * * listen function in Microsoft's Winsock functions reference
@@ -511,16 +511,16 @@ rsock_sock_listen(VALUE sock, VALUE log)
  * call-seq:
  * 	socket.recvfrom(maxlen) => [mesg, sender_addrinfo]
  * 	socket.recvfrom(maxlen, flags) => [mesg, sender_addrinfo]
- * 
+ *
  * Receives up to _maxlen_ bytes from +socket+. _flags_ is zero or more
  * of the +MSG_+ options. The first element of the results, _mesg_, is the data
  * received. The second element, _sender_addrinfo_, contains protocol-specific
  * address information of the sender.
- * 
+ *
  * === Parameters
  * * +maxlen+ - the maximum number of bytes to receive from the socket
- * * +flags+ - zero or more of the +MSG_+ options 
- * 
+ * * +flags+ - zero or more of the +MSG_+ options
+ *
  * === Example
  * 	# In one file, start this first
  * 	require 'socket'
@@ -534,7 +534,7 @@ rsock_sock_listen(VALUE sock, VALUE log)
  * 	puts "I only received 20 bytes '#{data}'"
  * 	sleep 1
  * 	socket.close
- * 
+ *
  * 	# In another file, start this second
  * 	require 'socket'
  * 	include Socket::Constants
@@ -542,29 +542,29 @@ rsock_sock_listen(VALUE sock, VALUE log)
  * 	sockaddr = Socket.pack_sockaddr_in( 2200, 'localhost' )
  * 	socket.connect( sockaddr )
  * 	socket.puts "Watch this get cut short!"
- * 	socket.close 
- * 
+ * 	socket.close
+ *
  * === Unix-based Exceptions
  * On unix-based based systems the following system exceptions may be raised if the
  * call to _recvfrom_ fails:
  * * Errno::EAGAIN - the +socket+ file descriptor is marked as O_NONBLOCK and no
  *   data is waiting to be received; or MSG_OOB is set and no out-of-band data
- *   is available and either the +socket+ file descriptor is marked as 
- *   O_NONBLOCK or the +socket+ does not support blocking to wait for 
+ *   is available and either the +socket+ file descriptor is marked as
+ *   O_NONBLOCK or the +socket+ does not support blocking to wait for
  *   out-of-band-data
  * * Errno::EWOULDBLOCK - see Errno::EAGAIN
  * * Errno::EBADF - the +socket+ is not a valid file descriptor
  * * Errno::ECONNRESET - a connection was forcibly closed by a peer
- * * Errno::EFAULT - the socket's internal buffer, address or address length 
+ * * Errno::EFAULT - the socket's internal buffer, address or address length
  *   cannot be accessed or written
  * * Errno::EINTR - a signal interrupted _recvfrom_ before any data was available
  * * Errno::EINVAL - the MSG_OOB flag is set and no out-of-band data is available
- * * Errno::EIO - an i/o error occurred while reading from or writing to the 
+ * * Errno::EIO - an i/o error occurred while reading from or writing to the
  *   filesystem
- * * Errno::ENOBUFS - insufficient resources were available in the system to 
+ * * Errno::ENOBUFS - insufficient resources were available in the system to
  *   perform the operation
  * * Errno::ENOMEM - insufficient memory was available to fulfill the request
- * * Errno::ENOSR - there were insufficient STREAMS resources available to 
+ * * Errno::ENOSR - there were insufficient STREAMS resources available to
  *   complete the operation
  * * Errno::ENOTCONN - a receive is attempted on a connection-mode socket that
  *   is not connected
@@ -572,9 +572,9 @@ rsock_sock_listen(VALUE sock, VALUE log)
  * * Errno::EOPNOTSUPP - the specified flags are not supported for this socket type
  * * Errno::ETIMEDOUT - the connection timed out during connection establishment
  *   or due to a transmission timeout on an active connection
- * 
+ *
  * === Windows Exceptions
- * On Windows systems the following system exceptions may be raised if 
+ * On Windows systems the following system exceptions may be raised if
  * the call to _recvfrom_ fails:
  * * Errno::ENETDOWN - the network is down
  * * Errno::EFAULT - the internal buffer and from parameters on +socket+ are not
@@ -582,31 +582,31 @@ rsock_sock_listen(VALUE sock, VALUE log)
  *   too small to accommodate the peer address
  * * Errno::EINTR - the (blocking) call was cancelled by an internal call to
  *   the WinSock function WSACancelBlockingCall
- * * Errno::EINPROGRESS - a blocking Windows Sockets 1.1 call is in progress or 
+ * * Errno::EINPROGRESS - a blocking Windows Sockets 1.1 call is in progress or
  *   the service provider is still processing a callback function
  * * Errno::EINVAL - +socket+ has not been bound with a call to _bind_, or an
  *   unknown flag was specified, or MSG_OOB was specified for a socket with
  *   SO_OOBINLINE enabled, or (for byte stream-style sockets only) the internal
  *   len parameter on +socket+ was zero or negative
  * * Errno::EISCONN - +socket+ is already connected. The call to _recvfrom_ is
- *   not permitted with a connected socket on a socket that is connection 
+ *   not permitted with a connected socket on a socket that is connection
  *   oriented or connectionless.
- * * Errno::ENETRESET - the connection has been broken due to the keep-alive 
+ * * Errno::ENETRESET - the connection has been broken due to the keep-alive
  *   activity detecting a failure while the operation was in progress.
  * * Errno::EOPNOTSUPP - MSG_OOB was specified, but +socket+ is not stream-style
  *   such as type SOCK_STREAM. OOB data is not supported in the communication
- *   domain associated with +socket+, or +socket+ is unidirectional and 
+ *   domain associated with +socket+, or +socket+ is unidirectional and
  *   supports only send operations
- * * Errno::ESHUTDOWN - +socket+ has been shutdown. It is not possible to 
+ * * Errno::ESHUTDOWN - +socket+ has been shutdown. It is not possible to
  *   call _recvfrom_ on a socket after _shutdown_ has been invoked.
- * * Errno::EWOULDBLOCK - +socket+ is marked as nonblocking and a  call to 
+ * * Errno::EWOULDBLOCK - +socket+ is marked as nonblocking and a  call to
  *   _recvfrom_ would block.
  * * Errno::EMSGSIZE - the message was too large to fit into the specified buffer
  *   and was truncated.
  * * Errno::ETIMEDOUT - the connection has been dropped, because of a network
  *   failure or because the system on the other end went down without
  *   notice
- * * Errno::ECONNRESET - the virtual circuit was reset by the remote side 
+ * * Errno::ECONNRESET - the virtual circuit was reset by the remote side
  *   executing a hard or abortive close. The application should close the
  *   socket; it is no longer usable. On a UDP-datagram socket this error
  *   indicates a previous send operation resulted in an ICMP Port Unreachable
@@ -622,7 +622,7 @@ sock_recvfrom(int argc, VALUE *argv, VALUE sock)
  * call-seq:
  * 	socket.recvfrom_nonblock(maxlen) => [mesg, sender_addrinfo]
  * 	socket.recvfrom_nonblock(maxlen, flags) => [mesg, sender_addrinfo]
- * 
+ *
  * Receives up to _maxlen_ bytes from +socket+ using recvfrom(2) after
  * O_NONBLOCK is set for the underlying file descriptor.
  * _flags_ is zero or more of the +MSG_+ options.
@@ -633,11 +633,11 @@ sock_recvfrom(int argc, VALUE *argv, VALUE sock)
  * When recvfrom(2) returns 0, Socket#recvfrom_nonblock returns
  * an empty string as data.
  * The meaning depends on the socket: EOF on TCP, empty packet on UDP, etc.
- * 
+ *
  * === Parameters
  * * +maxlen+ - the maximum number of bytes to receive from the socket
- * * +flags+ - zero or more of the +MSG_+ options 
- * 
+ * * +flags+ - zero or more of the +MSG_+ options
+ *
  * === Example
  * 	# In one file, start this first
  * 	require 'socket'
@@ -657,7 +657,7 @@ sock_recvfrom(int argc, VALUE *argv, VALUE sock)
  * 	puts "I only received 20 bytes '#{data}'"
  * 	sleep 1
  * 	socket.close
- * 
+ *
  * 	# In another file, start this second
  * 	require 'socket'
  * 	include Socket::Constants
@@ -665,10 +665,10 @@ sock_recvfrom(int argc, VALUE *argv, VALUE sock)
  * 	sockaddr = Socket.sockaddr_in(2200, 'localhost')
  * 	socket.connect(sockaddr)
  * 	socket.puts "Watch this get cut short!"
- * 	socket.close 
- * 
+ * 	socket.close
+ *
  * Refer to Socket#recvfrom for the exceptions that may be thrown if the call
- * to _recvfrom_nonblock_ fails. 
+ * to _recvfrom_nonblock_ fails.
  *
  * Socket#recvfrom_nonblock may raise any error corresponding to recvfrom(2) failure,
  * including Errno::EWOULDBLOCK.
@@ -717,13 +717,13 @@ sock_accept(VALUE sock)
 /*
  * call-seq:
  * 	socket.accept_nonblock => [client_socket, client_addrinfo]
- * 
+ *
  * Accepts an incoming connection using accept(2) after
  * O_NONBLOCK is set for the underlying file descriptor.
  * It returns an array containing the accepted socket
  * for the incoming connection, _client_socket_,
  * and an Addrinfo, _client_addrinfo_.
- * 
+ *
  * === Example
  * 	# In one script, start this first
  * 	require 'socket'
@@ -741,19 +741,19 @@ sock_accept(VALUE sock)
  * 	puts "The client said, '#{client_socket.readline.chomp}'"
  * 	client_socket.puts "Hello from script one!"
  * 	socket.close
- * 
+ *
  * 	# In another script, start this second
  * 	require 'socket'
  * 	include Socket::Constants
  * 	socket = Socket.new(AF_INET, SOCK_STREAM, 0)
  * 	sockaddr = Socket.sockaddr_in(2200, 'localhost')
  * 	socket.connect(sockaddr)
- * 	socket.puts "Hello from script 2." 
+ * 	socket.puts "Hello from script 2."
  * 	puts "The server said, '#{socket.readline.chomp}'"
  * 	socket.close
- * 
+ *
  * Refer to Socket#accept for the exceptions that may be thrown if the call
- * to _accept_nonblock_ fails. 
+ * to _accept_nonblock_ fails.
  *
  * Socket#accept_nonblock may raise any error corresponding to accept(2) failure,
  * including Errno::EWOULDBLOCK.
@@ -761,7 +761,7 @@ sock_accept(VALUE sock)
  * If the exception is Errno::EWOULDBLOCK, Errno::AGAIN, Errno::ECONNABORTED or Errno::EPROTO,
  * it is extended by IO::WaitReadable.
  * So IO::WaitReadable can be used to rescue the exceptions for retrying accept_nonblock.
- * 
+ *
  * === See
  * * Socket#accept
  */
@@ -781,11 +781,11 @@ sock_accept_nonblock(VALUE sock)
 /*
  * call-seq:
  * 	socket.sysaccept => [client_socket_fd, client_addrinfo]
- * 
+ *
  * Accepts an incoming connection returning an array containing the (integer)
  * file descriptor for the incoming connection, _client_socket_fd_,
  * and an Addrinfo, _client_addrinfo_.
- * 
+ *
  * === Example
  * 	# In one script, start this first
  * 	require 'socket'
@@ -799,20 +799,20 @@ sock_accept_nonblock(VALUE sock)
  * 	puts "The client said, '#{client_socket.readline.chomp}'"
  * 	client_socket.puts "Hello from script one!"
  * 	socket.close
- * 
+ *
  * 	# In another script, start this second
  * 	require 'socket'
  * 	include Socket::Constants
  * 	socket = Socket.new( AF_INET, SOCK_STREAM, 0 )
  * 	sockaddr = Socket.pack_sockaddr_in( 2200, 'localhost' )
  * 	socket.connect( sockaddr )
- * 	socket.puts "Hello from script 2." 
+ * 	socket.puts "Hello from script 2."
  * 	puts "The server said, '#{socket.readline.chomp}'"
  * 	socket.close
- * 
+ *
  * Refer to Socket#accept for the exceptions that may be thrown if the call
- * to _sysaccept_ fails. 
- * 
+ * to _sysaccept_ fails.
+ *
  * === See
  * * Socket#accept
  */
@@ -944,7 +944,7 @@ sock_s_gethostbyname(VALUE obj, VALUE host)
  *
  * Obtains the host information for _address_.
  *
- *   p Socket.gethostbyaddr([221,186,184,68].pack("CCCC"))              
+ *   p Socket.gethostbyaddr([221,186,184,68].pack("CCCC"))
  *   #=> ["carbon.ruby-lang.org", [], 2, "\xDD\xBA\xB8D"]
  */
 static VALUE
@@ -1009,7 +1009,7 @@ sock_s_gethostbyaddr(int argc, VALUE *argv)
  *   Socket.getservbyname("smtp")          #=> 25
  *   Socket.getservbyname("shell")         #=> 514
  *   Socket.getservbyname("syslog", "udp") #=> 514
- */   
+ */
 static VALUE
 sock_s_getservbyname(int argc, VALUE *argv)
 {
@@ -1394,7 +1394,7 @@ sock_s_pack_sockaddr_un(VALUE self, VALUE path)
  *
  * _sockaddr_ should be a string or an addrinfo for AF_UNIX.
  *
- *   sockaddr = Socket.sockaddr_un("/tmp/sock") 
+ *   sockaddr = Socket.sockaddr_un("/tmp/sock")
  *   p Socket.unpack_sockaddr_un(sockaddr) #=> "/tmp/sock"
  *
  */
@@ -1800,15 +1800,15 @@ socket_s_ip_address_list(VALUE self)
  * The constants defined under Socket::Constants are also defined under Socket.
  * For example, Socket::AF_INET is usable as well as Socket::Constants::AF_INET.
  * See Socket::Constants for the list of constants.
- * 
+ *
  * === Exception Handling
  * Ruby's implementation of +Socket+ causes an exception to be raised
  * based on the error generated by the system dependent implementation.
  * This is why the methods are documented in a way that isolate
  * Unix-based system exceptions from Windows based exceptions. If more
- * information on particular exception is needed please refer to the 
+ * information on particular exception is needed please refer to the
  * Unix manual pages or the Windows WinSock reference.
- * 
+ *
  * === Convenient methods
  *
  * Although the general way to create socket is Socket.new,
@@ -1818,14 +1818,14 @@ socket_s_ip_address_list(VALUE self)
  * * TCP server socket: Socket.tcp_server_loop, TCPServer.open
  * * UNIX client socket: Socket.unix, UNIXSocket.open
  * * UNIX server socket: Socket.unix_server_loop, UNIXServer.open
- * 
+ *
  * === Documentation by
  * * Zach Dennis
  * * Sam Roberts
- * * <em>Programming Ruby</em> from The Pragmatic Bookshelf.  
- * 
- * Much material in this documentation is taken with permission from  
- * <em>Programming Ruby</em> from The Pragmatic Bookshelf.  
+ * * <em>Programming Ruby</em> from The Pragmatic Bookshelf.
+ *
+ * Much material in this documentation is taken with permission from
+ * <em>Programming Ruby</em> from The Pragmatic Bookshelf.
  */
 void
 Init_socket()
diff --git a/ext/socket/tcpserver.c b/ext/socket/tcpserver.c
index faa5ad5007..282bd60b30 100644
--- a/ext/socket/tcpserver.c
+++ b/ext/socket/tcpserver.c
@@ -41,7 +41,7 @@ tcp_svr_init(int argc, VALUE *argv, VALUE sock)
  *     s.puts Time.now
  *     s.close
  *   }
- *   
+ *
  */
 static VALUE
 tcp_accept(VALUE sock)
@@ -49,7 +49,7 @@ tcp_accept(VALUE sock)
     rb_io_t *fptr;
     struct sockaddr_storage from;
     socklen_t fromlen;
- 
+
     GetOpenFile(sock, fptr);
     fromlen = sizeof(from);
     return rsock_s_accept(rb_cTCPSocket, fptr->fd,
@@ -59,11 +59,11 @@ tcp_accept(VALUE sock)
 /*
  * call-seq:
  * 	tcpserver.accept_nonblock => tcpsocket
- * 
+ *
  * Accepts an incoming connection using accept(2) after
  * O_NONBLOCK is set for the underlying file descriptor.
  * It returns an accepted TCPSocket for the incoming connection.
- * 
+ *
  * === Example
  * 	require 'socket'
  * 	serv = TCPServer.new(2202)
@@ -74,9 +74,9 @@ tcp_accept(VALUE sock)
  * 	  retry
  * 	end
  * 	# sock is an accepted socket.
- * 
+ *
  * Refer to Socket#accept for the exceptions that may be thrown if the call
- * to TCPServer#accept_nonblock fails. 
+ * to TCPServer#accept_nonblock fails.
  *
  * TCPServer#accept_nonblock may raise any error corresponding to accept(2) failure,
  * including Errno::EWOULDBLOCK.
@@ -84,7 +84,7 @@ tcp_accept(VALUE sock)
  * If the exception is Errno::EWOULDBLOCK, Errno::AGAIN, Errno::ECONNABORTED, Errno::EPROTO,
  * it is extended by IO::WaitReadable.
  * So IO::WaitReadable can be used to rescue the exceptions for retrying accept_nonblock.
- * 
+ *
  * === See
  * * TCPServer#accept
  * * Socket#accept
@@ -110,7 +110,7 @@ tcp_accept_nonblock(VALUE sock)
  *
  *   TCPServer.open("127.0.0.1", 28561) {|serv|
  *     fd = serv.sysaccept
- *     s = IO.for_fd(fd)       
+ *     s = IO.for_fd(fd)
  *     s.puts Time.now
  *     s.close
  *   }
diff --git a/ext/socket/udpsocket.c b/ext/socket/udpsocket.c
index e0ce443090..b278523eba 100644
--- a/ext/socket/udpsocket.c
+++ b/ext/socket/udpsocket.c
@@ -137,7 +137,7 @@ udp_bind(VALUE sock, VALUE host, VALUE port)
  *   udpsocket.send(mesg, flags)              => numbytes_sent
  *
  * Sends _mesg_ via _udpsocket_.
- * 
+ *
  * _flags_ should be a bitwise OR of Socket::MSG_* constants.
  *
  *   u1 = UDPSocket.new
@@ -195,7 +195,7 @@ udp_send(int argc, VALUE *argv, VALUE sock)
  * call-seq:
  * 	udpsocket.recvfrom_nonblock(maxlen) => [mesg, sender_inet_addr]
  * 	udpsocket.recvfrom_nonblock(maxlen, flags) => [mesg, sender_inet_addr]
- * 
+ *
  * Receives up to _maxlen_ bytes from +udpsocket+ using recvfrom(2) after
  * O_NONBLOCK is set for the underlying file descriptor.
  * If _maxlen_ is omitted, its default value is 65536.
@@ -206,11 +206,11 @@ udp_send(int argc, VALUE *argv, VALUE sock)
  * When recvfrom(2) returns 0,
  * Socket#recvfrom_nonblock returns an empty string as data.
  * It means an empty packet.
- * 
+ *
  * === Parameters
  * * +maxlen+ - the number of bytes to receive from the socket
- * * +flags+ - zero or more of the +MSG_+ options 
- * 
+ * * +flags+ - zero or more of the +MSG_+ options
+ *
  * === Example
  * 	require 'socket'
  * 	s1 = UDPSocket.new
@@ -228,7 +228,7 @@ udp_send(int argc, VALUE *argv, VALUE sock)
  * 	end
  *
  * Refer to Socket#recvfrom for the exceptions that may be thrown if the call
- * to _recvfrom_nonblock_ fails. 
+ * to _recvfrom_nonblock_ fails.
  *
  * UDPSocket#recvfrom_nonblock may raise any error corresponding to recvfrom(2) failure,
  * including Errno::EWOULDBLOCK.
diff --git a/ext/socket/unixserver.c b/ext/socket/unixserver.c
index ef830bc359..a6379eb364 100644
--- a/ext/socket/unixserver.c
+++ b/ext/socket/unixserver.c
@@ -60,11 +60,11 @@ unix_accept(VALUE sock)
 /*
  * call-seq:
  * 	unixserver.accept_nonblock => unixsocket
- * 
+ *
  * Accepts an incoming connection using accept(2) after
  * O_NONBLOCK is set for the underlying file descriptor.
  * It returns an accepted UNIXSocket for the incoming connection.
- * 
+ *
  * === Example
  * 	require 'socket'
  * 	serv = UNIXServer.new("/tmp/sock")
@@ -75,9 +75,9 @@ unix_accept(VALUE sock)
  * 	  retry
  * 	end
  * 	# sock is an accepted socket.
- * 
+ *
  * Refer to Socket#accept for the exceptions that may be thrown if the call
- * to UNIXServer#accept_nonblock fails. 
+ * to UNIXServer#accept_nonblock fails.
  *
  * UNIXServer#accept_nonblock may raise any error corresponding to accept(2) failure,
  * including Errno::EWOULDBLOCK.
@@ -85,7 +85,7 @@ unix_accept(VALUE sock)
  * If the exception is Errno::EWOULDBLOCK, Errno::AGAIN, Errno::ECONNABORTED or Errno::EPROTO,
  * it is extended by IO::WaitReadable.
  * So IO::WaitReadable can be used to rescue the exceptions for retrying accept_nonblock.
- * 
+ *
  * === See
  * * UNIXServer#accept
  * * Socket#accept
@@ -115,7 +115,7 @@ unix_accept_nonblock(VALUE sock)
  *       fd = serv.sysaccept
  *       s = IO.new(fd)
  *       s.puts "hi"
- *       s.close 
+ *       s.close
  *       p c.read #=> "hi\n"
  *     }
  *   }
diff --git a/ext/socket/unixsocket.c b/ext/socket/unixsocket.c
index 4c3c5a7f7a..e0b081ad06 100644
--- a/ext/socket/unixsocket.c
+++ b/ext/socket/unixsocket.c
@@ -89,7 +89,7 @@ rsock_init_unixsock(VALUE sock, VALUE path, int server)
  *
  *   s = UNIXSocket.new("/tmp/sock")
  *   s.send "hello", 0
- *   
+ *
  */
 static VALUE
 unix_init(VALUE sock, VALUE path)
@@ -271,11 +271,11 @@ recvmsg_blocking(void *data)
  *   unixsocket.recv_io([klass [, mode]]) => io
  *
  *   UNIXServer.open("/tmp/sock") {|serv|
- *     UNIXSocket.open("/tmp/sock") {|c|  
+ *     UNIXSocket.open("/tmp/sock") {|c|
  *       s = serv.accept
  *
- *       c.send_io STDOUT 
- *       stdout = s.recv_io 
+ *       c.send_io STDOUT
+ *       stdout = s.recv_io
  *
  *       p STDOUT.fileno #=> 1
  *       p stdout.fileno #=> 7