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 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
Tag
Description
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).
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