getdomainname, setdomainname -獲取/設置域名

內容簡介

#include <unistd.h>
int getdomainname(char **name*, size_t len**);** 
int setdomainname(const char **name*, size_t len**);**

描述

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).

返回值

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

錯誤

標籤

描述

EFAULT

For setdomainname(): name yiibaied 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).

遵循於

POSIX does not specify these calls.

另請參閱

• gethostname (2)

• sethostname (2)

• uname (2)