MAN page from Trustix libcap-devel-1.10-2tr.i586.rpm
CAP_CLEAR
Section: Linux Programmer's Manual (3)
Updated: 26th May 1997
Index NAME
cap_clear, cap_get_flag, cap_set_flag - capability data object manipulation
SYNOPSIS
#include <sys/capability.h>int cap_clear(cap_t cap_p);
int cap_get_flag(cap_t cap_p, cap_value_t cap, cap_flag_t flag, cap_flag_value_t *value_p);
int cap_set_flag(cap_t cap_p, cap_flag_t flag, int ncap, cap_value_t *caps, cap_flag_value_t value);
USAGE
cc ... -lcap DESCRIPTION
cap_clearinitializes the capability state in working storage identified by
cap_pin such a way that all capability flags are cleared.
cap_get_flagobtains the current value of the capability flag,flag,of the capability,cap,from the capability state identified bycap_pand places it in the location pointed to byvalue_p.
cap_set_flagsets the flag,flag,of each capability in the arraycapsin the capability state identified bycap_ptovalue.The argument,ncap,is used to specify the number of capabilities in the array,caps.
Acap_value_tcan identify any capability, such asCAP_CHOWN.Acap_flag_tcan be set toCAP_EFFECTIVE,CAP_INHERITABLEorCAP_PERMITTED.Acap_flag_value_tcan beCAP_CLEAR(0) orCAP_SET(1).
RETURN VALUE
cap_clear,
cap_get_flagand
cap_set_flagreturn zero on success, and -1 on failure.
On failure,errno(3)is set to EINVAL,indicating that one of the arguments is invalid.
CONFORMING TO
These functions are specified by POSIX.1e.
SEE ALSO
cap_copy_ext(3),
cap_from_text(3),
cap_get_file(3),
cap_get_proc(3),
cap_init(3)
Index
- NAME
- SYNOPSIS
- USAGE
- DESCRIPTION
- RETURN VALUE
- CONFORMING TO
- SEE ALSO
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