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 occurs.

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

SEE ALSO

       getgroups(2), setgroups(2)