initgroups
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
initgroups initializes the group access
list by reading the group database and using all groups of which
user is a member. The additional group
group is also added to the list.
Return Value
On success, 0 is returned.
On error, -1 is returned and
the global variable errno is set appropriately.
Errors
- EPERM
The calling process does not have sufficient privileges.
- ENOMEM
Insufficient memory to allocate group information structure.