NAME
initgroups —
initialize group access list
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 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 the
value 0 if successful; otherwise the value -1 is returned and
the global variable errno is set to indicate the
error.
ERRORS
The initgroups() function may fail and set
errno for any of the errors specified for the library
function
setgroups(2). It may also return:
- [
ENOMEM] - The
initgroups() function was unable to allocate temporary storage.
SEE ALSO
HISTORY
The initgroups() function appeared in
4.2BSD.