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GETNETGRENT(3)	       FreeBSD Library Functions Manual		GETNETGRENT(3)

NAME
     getnetgrent, innetgr, setnetgrent,	endnetgrent -- netgroup	database oper-
     ations

LIBRARY
     Standard C	Library	(libc, -lc)

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 off-
     set 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.

FreeBSD	10.1			 June 4, 1993			  FreeBSD 10.1

NAME | LIBRARY | SYNOPSIS | DESCRIPTION | RETURN VALUES | FILES | COMPATIBILITY | SEE ALSO | BUGS

Want to link to this manual page? Use this URL:
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