File xinetd-2.3.14-ident-bind.patch of Package xinetd

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File xinetd-2.3.14-ident-bind.patch of Package xinetd (Revision 19088a999851c44b781ae4cf8b4d983b)

Currently displaying revision 19088a999851c44b781ae4cf8b4d983b , Show latest

448069: xinetd: socket bind: Invalid argument (errno = 22) when using USERID on ipv6

Use right size of addresses in bind() call. Also use getpeername addresses when
connecting to ident service to prevent address family mismatch between socket(),
bind() and connect() calls.

Author: Jan Safranek <jsafrane@redhat.com>
Reviewed-By: Adam Tkac <atkac@redhat.com>

Index: xinetd-2.3.14/xinetd/ident.c
===================================================================
--- xinetd-2.3.14.orig/xinetd/ident.c
+++ xinetd-2.3.14/xinetd/ident.c
@@ -97,7 +97,13 @@ idresult_e log_remote_user( const struct
    }
 
    CLEAR( sin_contact );
-   sin_remote = *CONN_XADDRESS( SERVER_CONNECTION( serp ) ) ;
+
+   sin_len = sizeof( sin_remote );
+   if ( getpeername( SERVER_FD( serp ), &sin_remote.sa, &sin_len ) == -1 )
+   {
+      msg( LOG_ERR, func, "(%d) getpeername: %m", getpid() ) ;
+      return( IDR_ERROR ) ;
+   }
    sin_contact = sin_remote;
    memcpy( &sin_bind, &sin_local, sizeof(sin_bind) ) ;
    local_port = 0;
@@ -127,7 +133,13 @@ idresult_e log_remote_user( const struct
       msg( LOG_ERR, func, "socket creation: %m" ) ;
       return( IDR_ERROR ) ;
    }
-   if ( bind(sd, &sin_bind.sa, sizeof(sin_bind.sa)) == -1 )
+
+   if ( sin_bind.sa.sa_family == AF_INET )
+      sin_len = sizeof( sin_bind.sa_in ) ;
+   else
+      sin_len = sizeof( sin_bind.sa_in6 ) ;
+
+   if ( bind(sd, &sin_bind.sa, sin_len) == -1 )
    { 
       msg( LOG_ERR, func, "socket bind: %m" ) ;
       (void) Sclose( sd ) ;

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File xinetd-2.3.14-ident-bind.patch of Package xinetd (Revision 19088a999851c44b781ae4cf8b4d983b)

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