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getnetgrent (3)
  • getnetgrent (3) ( Solaris man: Библиотечные вызовы )
  • >> getnetgrent (3) ( FreeBSD man: Библиотечные вызовы )
  • getnetgrent (3) ( Linux man: Библиотечные вызовы )

  • BSD mandoc
     

    NAME

    
    
    getnetgrent
    
     
    innetgr
    
     
    setnetgrent
    
     
    endnetgrent
    
     - netgroup database operations
    
     
    

    LIBRARY

    Lb libc
    
     
    

    SYNOPSIS

       #include <netdb.h>
    int getnetgrent (char **host char **user char **domain);
    int innetgr (const char *netgroup const char *host const char *user const char *domain);
    void setnetgrent (const char *netgroup);
    void endnetgrent (void);
     

    DESCRIPTION

    These functions operate on the netgroup database file /etc/netgroup which is described in netgroup(5). The database defines a set of netgroups, each made up of one or more triples:
    (host, user, domain)
    
    that defines a combination of host, user and domain. Any of the three fields may be specified as ``wildcards'' that match any string.

    The function getnetgrent ();
    sets the three pointer arguments to the strings of the next member of the current netgroup. If any of the string pointers are (char *)0 that field is considered a wildcard.

    The functions setnetgrent ();
    and endnetgrent ();
    set the current netgroup and terminate the current netgroup respectively. If setnetgrent ();
    is called with a different netgroup than the previous call, an implicit endnetgrent ();
    is implied. The setnetgrent ();
    function also sets the offset to the first member of the netgroup.

    The function innetgr ();
    searches for a match of all fields within the specified group. If any of the host user or domain arguments are (char *)0 those fields will match any string value in the netgroup member.  

    RETURN VALUES

    The function getnetgrent ();
    returns 0 for ``no more netgroup members'' and 1 otherwise. The function innetgr ();
    returns 1 for a successful match and 0 otherwise. The functions setnetgrent ();
    and endnetgrent ();
    have no return value.  

    FILES

    /etc/netgroup
    netgroup database file

     

    COMPATIBILITY

    The netgroup members have three string fields to maintain compatibility with other vendor implementations, however it is not obvious what use the domain string has within BSD .  

    SEE ALSO

    netgroup(5)  

    BUGS

    The function getnetgrent ();
    returns pointers to dynamically allocated data areas that are freed when the function endnetgrent ();
    is called.


     

    Index

    NAME
    LIBRARY
    SYNOPSIS
    DESCRIPTION
    RETURN VALUES
    FILES
    COMPATIBILITY
    SEE ALSO
    BUGS


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