|GETHOSTNAME(3)||Library Functions Manual||GETHOSTNAME(3)|
char *name, size_t
gethostname() function returns the standard host name for the current machine, as previously set by
sethostname(). The parameter namelen specifies the size of the name array. If insufficient space is provided, the returned name is truncated. The returned name is always NUL terminated. If no space is provided, an error is returned.
sethostname() sets the name of the host
machine to be name, which has length
namelen. This call is restricted to the superuser and
is normally used only when the system is bootstrapped.
gethostname() function call conforms to X/Open Portability Guide Issue 4, Version 2 (“XPG4.2”).
gethostname() function call appeared in 4.2BSD.
<sys/param.h>) characters, currently 256. This includes the terminating NUL character. Note that the corresponding POSIX definition
<limits.h>does not include the terminating NUL character.
If the buffer passed to
MAXHOSTNAMELEN, other operating systems
may not guarantee termination with NUL.
|January 12, 2018||OpenBSD-current|