getdomainname, setdomainname — get/set domain name
#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.
For setdomainname
():
name
pointed
outside of user address space.
For getdomainname
()
under libc: name
is NULL or
name
is longer
than len
bytes.
For setdomainname
():
len
was
negative or too large.
For setdomainname
():
the caller is unprivileged (Linux: does not have the
CAP_SYS_ADMIN
capability).
gethostname(2), sethostname(2), uname(2)
|