PRIV_GETBYNAME(9F) Kernel Functions for Drivers PRIV_GETBYNAME(9F)

priv_getbyname - map a privilege name to a number

#include <sys/cred.h>
int priv_getbyname(const char  *priv, int flags);

illumos DDI specific (illumos DDI).

priv
name of the privilege

flags

flags, must be zero or PRIV_ALLOC

The priv_getbyname() function maps a privilege name to a privilege number for use with the priv_*() kernel interfaces.

If PRIV_ALLOC is passed as a flag parameter, an attempt is made to allocate a privilege if it is not yet defined. The newly allocated privilege number is returned.

Privilege names can be specified with an optional priv_ prefix, which is stripped.

Privilege names are case insensitive but allocated privileges preserve case.

Allocated privileges can be at most {PRIVNAME_MAX} characters long and can contain only alphanumeric characters and the underscore character.

This function returns the privilege number, which is greater than or equal to 0, if it succeeds. It returns a negative error number if an error occurs.

EINVAL
This might be caused by any of the following
o
The flags parameter is invalid.
o
The specified privilege does not exist.
o
The priv parameter contains invalid characters.

ENOMEM

There is no room to allocate another privilege.

ENAMETOOLONG

An attempt was made to allocate a privilege that was longer than {PRIVNAME_MAX} characters.

This functions can be called from user and kernel contexts.

See attributes(5) for a description of the following attributes:

ATTRIBUTE TYPE ATTRIBUTE VALUE
Architecture All
Interface Stability Committed

attributes(5), privileges(5)

Writing Device Drivers

March 11, 2004 OmniOS