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GETDOMAINNAME(3) FreeBSD Library Functions Manual GETDOMAINNAME(3) NAME getdomainname, setdomainname - get/set the NIS domain name of current host LIBRARY Standard C Library (libc, -lc) SYNOPSIS #include <unistd.h> int getdomainname(char *name, int namelen); int setdomainname(const char *name, int namelen); DESCRIPTION The getdomainname() function returns the standard NIS domain name for the current host, as previously set by setdomainname(). The namelen argument specifies the size of the name array. The returned name is null- terminated unless insufficient space is provided. The setdomainname() function sets the NIS domain name of the host machine to be name, which has length namelen. This call is restricted to the super-user and is normally used only when the system is bootstrapped. RETURN VALUES Upon successful completion, the value 0 is returned; otherwise the value -1 is returned and the global variable errno is set to indicate the error. ERRORS The following errors may be returned by these calls: [EFAULT] The name or namelen argument gave an invalid address. [EPERM] The caller tried to set the hostname and was not the super-user. SEE ALSO gethostid(3), gethostname(3), sysctl(3) HISTORY The getdomainname() function appeared in 4.2BSD. BUGS Domain names are limited to MAXHOSTNAMELEN (from <sys/param.h>) characters, currently 256. FreeBSD 14.1-RELEASE-p8 May 6, 1994 FreeBSD 14.1-RELEASE-p8