sethostname
if (sethostname(hst->h_name, (int)strlen(hst->h_name)))
if (sethostname(hst->h_name, (int)strlen(hst->h_name)))
if (sethostname(*argv, (int)strlen(*argv)))
int sethostname(const char *, int);
if (gctx->sethostname != NULL) {
gctx->sethostname = ifctx;
struct bootpc_ifcontext *sethostname;