man pages section 3: Basic Library Functions

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Updated: July 2014
 
 

priv_emptyset(3C)

Name

priv_addset, priv_allocset, priv_copyset, priv_delset, priv_emptyset, priv_basicset, priv_fillset, priv_freeset, priv_intersect, priv_inverse, priv_isemptyset, priv_isequalset, priv_isfullset, priv_ismember, priv_issubset, priv_union - privilege set manipulation functions

Synopsis

#include <priv.h>

int priv_addset(priv_set_t *sp, const char *priv);
priv_set_t *priv_allocset(void);
void priv_copyset(const priv_set_t *src, priv_set_t *dst);
int priv_delset(priv_set_t *sp, const char *priv);
void priv_emptyset(priv_set_t *sp);
void priv_basicset(priv_set_t *sp);
void priv_fillset(priv_set_t *sp);
void priv_freeset(priv_set_t *sp);
void priv_intersect(const priv_set_t *src, priv_set_t *dst);
void priv_inverse(priv_set_t *sp);
boolean_t priv_isemptyset(const priv_set_t *sp);
boolean_t priv_isequalset(const priv_set_t *src, const priv_set_t *dst);
boolean_t priv_isfullset(const priv_set_t *sp);
boolean_t priv_ismember(const priv_set_t *sp, const char *priv);
boolean_t priv_issubset(const priv_set_t *src, const priv_set_t *dst);
void priv_union(const priv_set_t *src, priv_set_t *dst);

Description

The sp, src, and dst arguments point to privilege sets. The priv argument points to a named privilege.

The priv_addset() function adds the named privilege priv to sp.

The priv_allocset() function allocates sufficient memory to contain a privilege set. The value of the returned privilege set is indeterminate. The function returns NULL and sets errno when it fails to allocate memory.

The priv_copyset() function copies the set src to dst.

The priv_delset() function removes the named privilege priv from sp.

The priv_emptyset() function clears all privileges from sp.

The priv_basicset() function copies the basic privilege set to sp.

The priv_fillset() function asserts all privileges in sp, including the privileges not currently defined in the system.

The priv_freeset() function frees the storage allocated by priv_allocset().

The priv_intersect() function intersects src with dst and places the results in dst.

The priv_inverse() function inverts the privilege set given as argument in place.

The priv_isemptyset() function checks whether the argument is an empty set.

The priv_isequalset() function checks whether the privilege set src is equal to dst.

The priv_isfullset() function checks whether the argument is a full set. A full set is a set with all bits set, regardless of whether the privilege is currently defined in the system.

The priv_ismember() function checks whether the named privilege priv is a member of sp.

The priv_issubset() function checks whether src is a subset of dst.

The priv_union() function takes the union of src and dst and places the result in dst.

Return Values

Upon successful completion, priv_allocset() returns a pointer to an opaque data structure. It returns NULL if memory allocation fails and sets errno to indicate the error.

Upon successful completion, priv_isemptyset(), priv_isfullset(), priv_isequalset(), priv_issubset(), and priv_ismember() return B_TRUE. Otherwise, they return B_FALSE .

Upon successful completion, priv_delset() and priv_addset() return 0. Otherwise, they return -1 and set errno to indicate the error.

Errors

The priv_allocset() function will fail if:

ENOMEM

The physical limits of the system are exceeded by the memory allocation needed to hold a privilege set.

EAGAIN

There is insufficient memory for allocation to hold a privilege set. The application can try again later.

The priv_delset() and priv_addset() functions will fail if:

EINVAL

The privilege argument is not a valid privilege name.

Attributes

See attributes(5) for descriptions of the following attributes:

ATTRIBUTE TYPE
ATTRIBUTE VALUE
Interface Stability
Committed
MT-Level
MT-Safe

See Also

setppriv(2), malloc(3C), priv_str_to_set(3C), attributes(5) , privileges(5)

Notes

The functions that compare sets operate on all bits of the set, regardless of whether the specific privileges are currently defined in the system.