getdomainname, setdomainname -获取/设置域名

内容简介

#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.

错误

标签	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).

遵循于

POSIX does not specify these calls.

另请参阅

• gethostname (2)

• sethostname (2)

• uname (2)