SOCKCF(SFF)                                UNIX System V



     Name
          /etc/sockcf - socket configuration file


     Description
          /etc/sockcf contains information about  the  protocols  that
          are  to  be accessed via the socket interface.  This file is
          read by ldsocket(ADMN) at boot time.

          /etc/sockcf contains one line per protocol  which  specifies
          the  address  family, protocol type, protocol number, flags,
          and STREAMS device for the protocol.  The flags describe the
          behavior of the protocol.

          The format of a protocol line is:

             Family     Type     Protocol     Flags     Device

          Family can be an address family name  or  an  integer.   The
          following address family names are recognized:

          Name         Value Description

          UNSPEC       0     Unspecified
          UNIX         1     Local to host (pipes, portals)
          INET         2     Internetwork: TCP, UDP, etc.
          IMPLINK      3     Arpanet IMP addresses
          PUP          4     PUP protocols, e.g. BSP
          CHAOS        5     MIT CHAOS protocols
          NS           6     XEROX NS protocols
          NBS          7     NBS protocols
          ECMA         8     European Computer Manufacturers
          DATAKIT      9     Datakit protocols
          CCITT        10    CCITT protocols: X.25, etc.
          SNA          11    IBM SNA
          DECnet       12    DECnet
          DLI          13    Direct Data Link Interface
          LAT          14    LAT
          HYLINK       15    NSC Hyperchannel
          APPLETALK    16    Apple Talk

          Type can be a type name or an integer.  The  following  type
          names are recognized:

          Name         Value    Description
          STREAM       1        Stream socket
          DGRAM        2        Datagram socket
          RAW          3        Raw protocol interface
          RDM          4        Reliably delivered message
          SEQPACKET    5        Sequenced packet stream

          Protocol  is  the  protocol  number  associated   with   the
          protocol.

          Flags  is  a  string  of  flag  characters  describing   the
          protocol.  The recognized flag characters are:

          M       This protocol supports atomic messages only.

          C       Connections are required.

          A       Messages contain addresses.

          R       Rights can be passed with this protocol.

          P       The protocol number must be  bound  to  the  stream.
                  This is required to support raw IP sockets.

          /etc/sockcf may contain comments, which are delimited by `#'
          and newline.

          The standard /etc/sockcf contains the following entries:

             INET    STREAM  6       C       /dev/inet/tcp
             INET    DGRAM           17      AM      /dev/inet/udp
             INET    RAW             1       AM      /dev/inet/icmp
             INET    RAW             255     AMP     /dev/inet/rip

          Because of the way the kernel  builds  the  protocol  switch
          table,  the  last  protocol specified for a type becomes the
          default. For this reason, it is important to ensure that the
          default protocol is the last one listed.


     Files
          /etc/sockcf


     See Also
          ldsocket(ADMN), intro(ADMP), socket(SSC).


     (printed 8/17/89)                                  SOCKCF(SFF)