| .\" |
| .\" $Id: _setproccap.2,v 1.1.1.1 1999/04/17 22:16:31 morgan Exp $ |
| .\" written by Andrew Main <zefram@dcs.warwick.ac.uk> |
| .\" |
| .TH _SETPROCCAP 2 "26th April 1997" "Linux 2.1" "Linux Programmer's Manual" |
| .SH NAME |
| _setproccap, _getproccap \- set/get process capabilities |
| .SH SYNOPSIS |
| .B #include <sys/capability.h> |
| .sp |
| .BI "int _setproccap(size_t " usize ", __cap_s const *" iset ", __cap_s const *" pset ", __cap_s const *" eset ); |
| .sp |
| .BI "int _getproccap(size_t " usize ", __cap_s *" iset ", __cap_s *" pset ", __cap_s *" eset ); |
| .SH DESCRIPTION |
| .B _setproccap |
| sets the calling process' |
| Inheritable, Permitted and Effective capabilities to the sets specified. |
| A NULL pointer specifies that a set should not be changed. |
| .PP |
| .B _getproccap |
| copies the process' capability sets into the sets provided. |
| A NULL pointer specifies that a set should not be returned. |
| .PP |
| The |
| .I usize |
| argument specifies the size of the user-space capability sets, in bytes. |
| If the kernel uses a different size internally, it will truncate or |
| zero-fill as required. |
| .SH "RETURN VALUE" |
| On success, zero is returned. On error, -1 is returned, and |
| .I errno |
| is set appropriately. |
| .SH ERRORS |
| .TP |
| .SB EFAULT |
| One of the capability arguments was an invalid data pointer. |
| .TP |
| .SB EPERM |
| An attempt was made to add a capability to the Permitted set, or to set |
| a capability in the Effective or Inheritable sets that is not in the |
| Permitted set. |
| .TP |
| .SB ENOSYS |
| The POSIX.1e capability system was not configured into the kernel. |
| .SH "CONFORMING TO" |
| These system calls are specific to Linux. |
| The portable interfaces are |
| .IR cap_set_proc (3) |
| and |
| .IR cap_get_proc (3). |
| .SH "SEE ALSO" |
| .IR _setfilecap (2). |
