GNU/Linux | 
					CentOS 5.4 | 
					|
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					setdomainname(2) | 
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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.
| 
 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)
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				setdomainname(2) | ![]()  |