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Manual Reference Pages  - GETDOMAINNAME (2)

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getdomainname, setdomainname - get/set domain name

CONTENTS

Synopsis
Description
Errors

#include <unistd.h>

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

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).

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

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).

POSIX does not specify these calls.

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