|GETDOMAINNAME(2)||Linux Programmer's Manual||GETDOMAINNAME(2)|
NAME¶getdomainname, setdomainname - get/set NIS domain name
Feature Test Macro Requirements for glibc (see feature_test_macros(7)):
_BSD_SOURCE || (_XOPEN_SOURCE && _XOPEN_SOURCE < 500)
DESCRIPTION¶These functions are used to access or to change the NIS domain name of the host system.
RETURN VALUE¶On success, zero is returned. On error, -1 is returned, and errno is set appropriately.
ERRORS¶setdomainname() can fail with the following errors:
- name pointed outside of user address space.
- len was negative or too large.
- the caller is unprivileged (Linux: does not have the CAP_SYS_ADMIN capability).
- For getdomainname() under libc: name is NULL or name is longer than len bytes.
CONFORMING TO¶POSIX does not specify these calls.
NOTES¶Since Linux 1.0, the limit on the length of a domain name, including the terminating null byte, is 64 bytes. In older kernels, it was 8 bytes.
SEE ALSO¶gethostname(2), sethostname(2), uname(2)
COLOPHON¶This page is part of release 3.44 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/.