Set supplementary group IDs
Synopsis:
#include <unistd.h>
int setgroups( int ngroups,
const gid_t *gidset );
Arguments:
- ngroups
- The number of entries in the gidset array.
- gidset
- An array of the supplementary group IDs that you want to assign to
the calling process.
This number of entries in this array can't exceed sysconf(_SC_NGROUPS_MAX).
Library:
libc
Use the -l c option to
qcc
to link against this library.
This library is usually included automatically.
Description:
The setgroups() function sets the group access list of the
calling process to the array of group IDs in gidset.
Note:
In order to set new groups or delete existing groups, your process must have the
PROCMGR_AID_SETGID ability enabled.
For more information, see
procmgr_ability().
Returns:
0, or -1 if an error occurred
(errno is set).
Errors:
- EFAULT
- The gidset argument isn't a valid pointer.
- EPERM
- The calling process doesn't have the required permission; see
procmgr_ability().
Classification:
Unix
| Safety: |
|
|---|
| Cancellation point |
Yes |
| Interrupt handler |
No |
| Signal handler |
No |
| Thread |
No |