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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);

   Feature Test Macro Requirements for glibc (see feature_test_macros(7)):

       getdomainame(), setdomainame(): _BSD_SOURCE || (_XOPEN_SOURCE &&
       _XOPEN_SOURCE < 500)

DESCRIPTION

       These functions are used to access or to change the domain name of  the
       current  processor.   If  the null-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)

COLOPHON

       This  page  is  part of release 2.77 of the Linux man-pages project.  A
       description of the project, and information about reporting  bugs,  can
       be found at http://www.kernel.org/doc/man-pages/.