GETZONEID(3C) Standard C Library Functions GETZONEID(3C)


NAME


getzoneid, getzoneidbyname, getzonenamebyid - map between zone id and
name

SYNOPSIS


#include <zone.h>

zoneid_t getzoneid(void);


zoneid_t getzoneidbyname(const char *name);


ssize_t getzonenamebyid(zoneid_t id, char *buf, size_t buflen);


DESCRIPTION


The getzoneid() function returns the zone ID of the calling process.


The getzoneidbyname() function returns the zone ID corresponding to the
named zone, if that zone is currently active. If name is NULL, the
function returns the zone ID of the calling process.


The getzonenamebyid() function stores the name of the zone with ID
specified by id in the location specified by buf. The bufsize argument
specifies the size in bytes of the buffer. If the buffer is too small to
hold the complete null-terminated name, the first bufsize bytes of the
name are stored in the buffer. A buffer of size {ZONENAME_MAX} is
sufficient to hold any zone name. If buf is NULL or bufsize is 0, the
name is not copied into the buffer.

RETURN VALUES


On successful completion, getzoneid() and getzoneidbyname() return a non-
negative zone ID. Otherwise, getzoneidbyname() returns -1 and sets errno
to indicate the error.


On successful completion, the getzonenamebyid() function returns the
buffer size required to hold the full null-terminated name. Otherwise, it
returns -1 and sets errno to indicate the error.

ERRORS


The getzoneidbyname() function will fail if:

EFAULT
The name argument is non-null and points to an illegal
address.


EINVAL
A zone with the indicated name is not active.


ENAMETOOLONG
The length of the name argument exceeds {ZONENAME_MAX}.


The getzonenamebyid() function will fail if:

EINVAL
A zone with the specified ID is not active.


EFAULT
The buf argument points to an illegal address.


ATTRIBUTES


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


+--------------------+-----------------+
| ATTRIBUTE TYPE | ATTRIBUTE VALUE |
+--------------------+-----------------+
|Interface Stability | Evolving |
+--------------------+-----------------+
|MT-Level | Safe |
+--------------------+-----------------+

SEE ALSO


Intro(2), chroot(2), malloc(3C), attributes(5), zones(5)


November 1, 2004 GETZONEID(3C)