GETDOMAINNAME Section: Linux Programmer's Manual (2) Updated: 22 July 2025 Index   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.   RETURN VALUE On success, zero is returned. On error, -1 is returned, and errno is set appropriately.   ERRORS EINVAL For getdomainname, name points to NULL or name is longer than len. EPERM For setdomainname, the caller was not the superuser. EINVAL For setdomainname, len was too long.   CONFORMING TO POSIX does not specify these calls.   BUGS getdomainname is not compliant with other implementations, since they always return len bytes, even if name is longer. Linux, however, returns EINVAL in this case (as of DLL 4.4.1 libraries).   NOTES Under Linux, getdomainname is implemented at the library level by calling   SEE ALSO   Index NAME SYNOPSIS DESCRIPTION RETURN VALUE ERRORS CONFORMING TO BUGS NOTES SEE ALSO This document was created by using the manual pages. Time: 11:56:05 GMT, March 24, 2025