getdomainname(2) -- Linux man page

 

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);  

DESCRIPTION

These functions are used to access or to change the domain name of the current processor. If the NUL-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

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 was not the superuser.
EFAULT
For setdomainname: name pointed outside of user address space.
 

CONFORMING TO

POSIX does not specify these calls.  

SEE ALSO

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