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NAME

       getdomainname, setdomainname - get/set domain name

SYNOPSIS

       #include <unistd.h>

       int getdomainname(char *name, size_t len);
       int setdomainname(const char *name, size_t len);

DESCRIPTION

       These  functions are used to access or to change the domain name of the
       current processor.  If the NUL-terminated  domain  name  requires  more
       than  len bytes, getdomainname() returns the first len bytes (glibc) or
       returns an error (libc).

RETURN VALUE

       On success, zero is returned.  On error, -1 is returned, and  errno  is
       set appropriately.

ERRORS

       EFAULT For setdomainname(): name pointed outside of user address space.

       EINVAL For getdomainname() under libc: name is NULL or name  is  longer
              than len bytes.

       EINVAL For setdomainname(): len was negative or too large.

       EPERM  For setdomainname(): the caller is unprivileged (Linux: does not
              have the CAP_SYS_ADMIN capability).

CONFORMING TO

       POSIX does not specify these calls.

SEE ALSO

       gethostname(2), sethostname(2), uname(2)