setgroups(2) System Calls Manual setgroups(2)
Name
setgroups - set group access list
Syntax
#include <sys/param.h>
setgroups(ngroups, gidset)
int ngroups, *gidset;
Description
The system call sets the group access list of the current user process according to the array, gidset. The ngroups parameter indicates the
number of entries in the array and must be no more than NGROUPS, as defined in
Only the superuser can set new groups.
Return Values
A 0 value is returned on success, -1 on an error, with the error code stored in errno.
Diagnostics
The call fails if:
[EPERM] The caller is not the superuser.
[EFAULT] The address specified for gidset is outside the process address space.
See Also
getgroups(2), initgroups(3x)
setgroups(2)
