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getzonenamebyid(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 buflen argument
       specifies the size in bytes of the buffer. If the buffer is  too  small
       to  hold  the  complete null-terminated name, the first buflen 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 buflen is 0, the
       name is not copied into the buffer.


       From a solaris-kz brand zone, the returned ID will be 0, equivalent  to
       a global zone, rather than the ID visible from the host global zone.

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(7) for descriptions of the following attributes:


       tab() box; cw(2.75i) |cw(2.75i) lw(2.75i) |lw(2.75i) ATTRIBUTE  TYPEAT‐
       TRIBUTE VALUE _ Interface StabilityCommitted _ MT-LevelSafe


SEE ALSO
       chroot(2), Intro(2), malloc(3C), attributes(7), zones(7)



Oracle Solaris 11.4               17 Aug 2018                    getzoneid(3C)
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