Manual browser: gethostname(3)
|GETHOSTNAME(3)||Library Functions Manual||GETHOSTNAME(3)|
NAMEgethostname, sethostname — get/set name of current host
LIBRARYStandard C Library (libc, -lc)
gethostname(char *name, size_t namelen);
sethostname(const char *name, size_t namelen);
DESCRIPTIONgethostname() returns the standard host name for the current processor, as previously set by sethostname(). The parameter namelen specifies the size of the name array. The returned name is null-terminated unless insufficient space is provided.
sethostname() sets the 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 VALUESIf the call succeeds a value of 0 is returned. If the call fails, a value of -1 is returned and an error code is placed in the global location errno.
ERRORSIf the gethostname() or sethostname() functions fail, they will set errno for any of the errors specified for the routine sysctl(3).
SEE ALSOgethostid(3), sysctl(3), sysctl(8)
STANDARDSThe gethostname() function conforms to X/Open Portability Guide Issue 4, Version 2 (“XPG4.2”).
HISTORYThe gethostname function call appeared in 4.2BSD.
BUGSHost names are limited to MAXHOSTNAMELEN (from <sys/param.h>) characters including null-termination, currently 256.
|October 14, 2005||NetBSD 7.0|