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

NAME

priv_getbyname - map a privilege name to a number

SYNOPSIS

#include <sys/cred.h>


int priv_getbyname(const char *priv, int flags);

INTERFACE LEVEL

illumos DDI specific (illumos DDI).

PARAMETERS

priv
name of the privilege


flags
flags, must be zero or PRIV_ALLOC

DESCRIPTION

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.

RETURN VALUES

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.

ERRORS

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.

CONTEXT

This functions can be called from user and kernel contexts.

ATTRIBUTES

See attributes(7) for a description of the following attributes:


+--------------------+-----------------+
| ATTRIBUTE TYPE | ATTRIBUTE VALUE |
+--------------------+-----------------+
|Architecture | All |
+--------------------+-----------------+
|Interface Stability | Committed |
+--------------------+-----------------+

SEE ALSO

attributes(7), privileges(7)


Writing Device Drivers

March 11, 2004 PRIV_GETBYNAME(9F)