Linux Man Page Viewer
The following form allows you to view linux man pages.
int cap_clear(cap_t cap_p);
int cap_clear_flag(cap_t cap_p, cap_flag_t flag);
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,
const cap_value_t *caps, cap_flag_value_t value);
int cap_compare(cap_t cap_a, cap_t cap_b);
Link with -lcap.
These functions work on a capability state held in working storage. A
cap_t holds information about the capabilities in each of the three
sets, Permitted, Inheritable, and Effective. Each capability in a set
may be clear (disabled, 0) or set (enabled, 1).
These functions work with the following data types:
cap_value_t identifies a capability, such as CAP_CHOWN.
cap_flag_t identifies one of the three flags associated with a
capability (i.e., it identifies one of the three
capability sets). Valid values for this type are
CAP_EFFECTIVE, CAP_INHERITABLE or CAP_PERMITTED.
cap_flag_value_t identifies the setting of a particular capability
flag (i.e, the value of a capability in a set).
Valid values for this type are CAP_CLEAR (0) or
cap_clear() initializes the capability state in working storage identi-
fied by cap_p so that all capability flags are cleared.
cap_clear_flag() clears all of the capabilities of the specified capa-
bility flag, flag.
cap_get_flag() obtains the current value of the capability flag, flag,
of the capability, cap, from the capability state identified by cap_p
and places it in the location pointed to by value_p.
cap_set_flag() sets the flag, flag, of each capability in the array
caps in the capability state identified by cap_p to value. The argu-
ment, ncap, is used to specify the number of capabilities in the array,
On failure, errno is set to EINVAL, indicating that one of the argu-
ments is invalid.
These functions are as per the withdrawn POSIX.1e draft specification.
cap_clear_flag() and cap_compare() are Linux extensions.
libcap(3), cap_copy_ext(3), cap_from_text(3), cap_get_file(3),
cap_get_proc(3), cap_init(3), capabilities(7)