/* $XConsortium: XLiHosts.c,v 11.19 91/01/06 11:46:46 rws Exp $ */ /* Copyright Massachusetts Institute of Technology 1986 */ /* Permission to use, copy, modify, distribute, and sell this software and its documentation for any purpose is hereby granted without fee, provided that the above copyright notice appear in all copies and that both that copyright notice and this permission notice appear in supporting documentation, and that the name of M.I.T. not be used in advertising or publicity pertaining to distribution of the software without specific, written prior permission. M.I.T. makes no representations about the suitability of this software for any purpose. It is provided "as is" without express or implied warranty. */ /* This can really be considered an os dependent routine */ #define NEED_REPLIES #include "Xlibint.h" /* * can be freed using XFree. */ XHostAddress *XListHosts (dpy, nhosts, enabled) register Display *dpy; int *nhosts; /* RETURN */ Bool *enabled; /* RETURN */ { register XHostAddress *outbuf = 0, *op; xListHostsReply reply; long nbytes; unsigned char *buf, *bp; register unsigned i; register xListHostsReq *req; LockDisplay(dpy); GetReq (ListHosts, req); if (!_XReply (dpy, (xReply *) &reply, 0, xFalse)) { UnlockDisplay(dpy); SyncHandle(); return (XHostAddress *) NULL; } if (reply.nHosts) { nbytes = reply.length << 2; /* compute number of bytes in reply */ op = outbuf = (XHostAddress *) Xmalloc((unsigned) (nbytes + reply.nHosts * sizeof(XHostAddress))); if (! outbuf) { _XEatData(dpy, (unsigned long) nbytes); UnlockDisplay(dpy); SyncHandle(); return (XHostAddress *) NULL; } bp = buf = ((unsigned char *) outbuf) + reply.nHosts * sizeof(XHostAddress); _XRead (dpy, (char *) buf, nbytes); for (i = 0; i < reply.nHosts; i++) { op->family = ((xHostEntry *) bp)->family; op->length =((xHostEntry *) bp)->length; op->address = (char *) (((xHostEntry *) bp) + 1); bp += SIZEOF(xHostEntry) + (((op->length + 3) >> 2) << 2); op++; } } *enabled = reply.enabled; *nhosts = reply.nHosts; UnlockDisplay(dpy); SyncHandle(); return (outbuf); }