05-10-2011
user control- supplementary group
What is a supplementary group and how do you make a supplementary group for members of a team? Thanks in advance.
---------- Post updated 05-10-11 at 12:09 PM ---------- Previous update was 05-09-11 at 10:08 PM ----------
anybody?
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LEARN ABOUT NETBSD
initgroups
INITGROUPS(3) BSD Library Functions Manual INITGROUPS(3)
NAME
initgroups -- initialize supplementary group IDs
LIBRARY
Standard C Library (libc, -lc)
SYNOPSIS
#include <unistd.h>
int
initgroups(const char *name, gid_t basegid);
DESCRIPTION
The initgroups() function uses the getgrouplist(3) function to calculate the supplementary group IDs for the user specified in name. This
group list is then set up for the current process using setgroups(2). The basegid is automatically included in the group list. Typically
this value is given as the group number from the password file.
If the groups database lists more than NGROUPS groups for name (including one for basegid), the later groups are ignored.
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
August 10, 2002 BSD