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getdomainname

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/.