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initgroups(3)            BSD Library Functions Manual            initgroups(3)


NAME

     initgroups -- initialize group access list


LIBRARY

     Standard C Library (libc, -lc)


SYNOPSIS

     #include <unistd.h>

     int
     initgroups(const char *name, int basegid);


DESCRIPTION

     The initgroups() function uses the getgrouplist(3) function to calculate
     the group access list for the user specified in name.  This group list is
     then setup for the current process using setgroups(2).  The basegid is
     automatically included in the groups list.  Typically this value is given
     as the group number from the password file.


RETURN VALUES

     The initgroups() function returns -1 if it was not invoked by the super-
     user.


SEE ALSO

     setgroups(2), getgrouplist(3)


HISTORY

     The initgroups() function appeared in 4.2BSD.


BUGS

     The getgrouplist() function called by initgroups() uses the routines
     based on getgrent(3).  If the invoking program uses any of these rou-
     tines, the group structure will be overwritten in the call to
     initgroups().

BSD                              June 4, 1993                              BSD

Mac OS X 10.6 - Generated Thu Sep 17 20:20:55 CDT 2009
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