getnetpath(3N)                 DG/UX 5.4R3.00                 getnetpath(3N)


NAME
       getnetpath - get /etc/netconfig entry corresponding to NETPATH
       component

SYNOPSIS
       #include <netconfig.h>
       void *
       setnetpath()
       struct netconfig *
       getnetpath(handlep);
       void * handlep;
       int
       endnetpath(handlep);
       void * handlep;

DESCRIPTION
       The three routines described on this page are part of the UNIX System
       V Network Selection component.  They provide application access to
       the system network configuration database, /etc/netconfig, as it is
       ``filtered'' by the NETPATH environment variable (see environ(5)).
       Network Selection also includes routines that access the network
       configuration database directly (see getnetconfig(3N)).

       A call to setnetpath() ``binds'' or ``rewinds'' NETPATH.
       setnetpath() must be called before the first call to getnetpath() and
       may be called at any other time.  It returns a handle that is used by
       getnetpath.  setnetpath() will fail if the netconfig database is not
       present.  If NETPATH is unset, setnetpath() returns the number of
       ``visible'' networks in the netconfig file.  The set of visible
       networks constitutes a default NETPATH.

       When first called, getnetpath() returns a pointer to the netconfig
       database entry corresponding to the first valid NETPATH component.
       The netconfig entry is formatted as a struct netconfig.  On each
       subsequent call, getnetpath returns a pointer to the netconfig entry
       that corresponds to the next valid NETPATH component.  getnetpath()
       can thus be used to search the netconfig database for all networks
       included in the NETPATH variable.  When NETPATH has been exhausted,
       getnetpath() returns NULL.

       getnetpath() silently ignores invalid NETPATH components.  A NETPATH
       component is invalid if there is no corresponding entry in the
       netconfig database.

       If the NETPATH variable is unset, getnetpath() behaves as if NETPATH
       were set to the sequence of ``default'' or ``visible'' networks in
       the netconfig database, in the order in which they are listed.

       endnetpath() may be called to ``unbind'' NETPATH when processing is
       complete, releasing resources for reuse.  Programmer's should be
       aware, however, that endnetpath() frees all memory allocated by
       setnetpath().  endnetpath() returns 0 on success and -1 on failure
       (e.g., if setnetpath() was not called previously).




Licensed material--property of copyright holder(s)                         1

getnetpath(3N)                 DG/UX 5.4R3.00                 getnetpath(3N)


SEE ALSO
       netconfig(4), getnetconfig(3N), environ(5)
       Network Programmer's Guide
       System Administrator's Guide





















































Licensed material--property of copyright holder(s)                         2