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INITGROUPS(3)		   Linux Programmer's Manual		 INITGROUPS(3)

NAME
       initgroups - initialize the supplementary group access list

SYNOPSIS
       #include	<grp.h>
       #include	<sys/types.h>

       int initgroups(const char *user,	gid_t group);

DESCRIPTION
       The  initgroups() function initializes the group	access list by reading
       the group database /etc/group and using all groups of which user	 is  a
       member.	The additional group group is also added to the	list.

RETURN VALUE
       The  initgroups()  function returns 0 on	success, or -1 if an error oc-
       curs.

ERRORS
       EPERM  The calling process does not have	sufficient privileges.

       ENOMEM Insufficient memory to allocate group information	structure.

FILES
       /etc/group	   group database file

CONFORMING TO
       SVID 3, BSD 4.3

NOTES
       The prototype for initgroups is only available if  _BSD_SOURCE  is  de-
       fined  (either explicitly, or implicitly, by not	defining _POSIX_SOURCE
       or compiling with the -ansi flag).

SEE ALSO
       getgroups(2), setgroups(2)

GNU				  1993-04-05			 INITGROUPS(3)

NAME | SYNOPSIS | DESCRIPTION | RETURN VALUE | ERRORS | FILES | CONFORMING TO | NOTES | SEE ALSO

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