op public repos

Blame

Date:: Fri Jan 10 14:54:30 2020 UTC
Message:: Trivial changes: whitespace and modes. Remote whitespace at the ends of lines. Remove blank lines from the ends of files. Change modes on source files so that they are not executable. Signed-off-by: Dan Cross <cross@gajendra.net>
Actions:: History | Blob | Raw File
  1 b3994ec5 2003-12-11 devnull #include <u.h>
  2 b3994ec5 2003-12-11 devnull #include <libc.h>
  3 b3994ec5 2003-12-11 devnull #include <draw.h>
  4 b3994ec5 2003-12-11 devnull #include <thread.h>
  5 b3994ec5 2003-12-11 devnull #include <cursor.h>
  6 b3994ec5 2003-12-11 devnull #include <mouse.h>
  7 b3994ec5 2003-12-11 devnull #include <keyboard.h>
  8 b3994ec5 2003-12-11 devnull #include <frame.h>
  9 b3994ec5 2003-12-11 devnull #include <fcall.h>
 10 b3994ec5 2003-12-11 devnull #include <plumb.h>
 11 67dbeee5 2017-10-10 rsc #include <libsec.h>
 12 b3994ec5 2003-12-11 devnull #include "dat.h"
 13 b3994ec5 2003-12-11 devnull #include "fns.h"
 14 b3994ec5 2003-12-11 devnull 
 15 b3994ec5 2003-12-11 devnull static	int	sfd;
 16 b3994ec5 2003-12-11 devnull 
 17 b3994ec5 2003-12-11 devnull enum
 18 b3994ec5 2003-12-11 devnull {
 19 b3994ec5 2003-12-11 devnull 	Nhash	= 16,
 20 b3994ec5 2003-12-11 devnull 	DEBUG	= 0
 21 b3994ec5 2003-12-11 devnull };
 22 b3994ec5 2003-12-11 devnull 
 23 b3994ec5 2003-12-11 devnull static	Fid	*fids[Nhash];
 24 b3994ec5 2003-12-11 devnull 
 25 b3994ec5 2003-12-11 devnull Fid	*newfid(int);
 26 b3994ec5 2003-12-11 devnull 
 27 b3994ec5 2003-12-11 devnull static	Xfid*	fsysflush(Xfid*, Fid*);
 28 b3994ec5 2003-12-11 devnull static	Xfid*	fsysauth(Xfid*, Fid*);
 29 b3994ec5 2003-12-11 devnull static	Xfid*	fsysversion(Xfid*, Fid*);
 30 b3994ec5 2003-12-11 devnull static	Xfid*	fsysattach(Xfid*, Fid*);
 31 b3994ec5 2003-12-11 devnull static	Xfid*	fsyswalk(Xfid*, Fid*);
 32 b3994ec5 2003-12-11 devnull static	Xfid*	fsysopen(Xfid*, Fid*);
 33 b3994ec5 2003-12-11 devnull static	Xfid*	fsyscreate(Xfid*, Fid*);
 34 b3994ec5 2003-12-11 devnull static	Xfid*	fsysread(Xfid*, Fid*);
 35 b3994ec5 2003-12-11 devnull static	Xfid*	fsyswrite(Xfid*, Fid*);
 36 b3994ec5 2003-12-11 devnull static	Xfid*	fsysclunk(Xfid*, Fid*);
 37 b3994ec5 2003-12-11 devnull static	Xfid*	fsysremove(Xfid*, Fid*);
 38 b3994ec5 2003-12-11 devnull static	Xfid*	fsysstat(Xfid*, Fid*);
 39 b3994ec5 2003-12-11 devnull static	Xfid*	fsyswstat(Xfid*, Fid*);
 40 b3994ec5 2003-12-11 devnull 
 41 8ad51794 2004-03-25 devnull Xfid* 	(*fcall[Tmax])(Xfid*, Fid*);
 42 8ad51794 2004-03-25 devnull 
 43 8ad51794 2004-03-25 devnull static void
 44 8ad51794 2004-03-25 devnull initfcall(void)
 45 b3994ec5 2003-12-11 devnull {
 46 8ad51794 2004-03-25 devnull 	fcall[Tflush]	= fsysflush;
 47 8ad51794 2004-03-25 devnull 	fcall[Tversion]	= fsysversion;
 48 8ad51794 2004-03-25 devnull 	fcall[Tauth]	= fsysauth;
 49 8ad51794 2004-03-25 devnull 	fcall[Tattach]	= fsysattach;
 50 8ad51794 2004-03-25 devnull 	fcall[Twalk]	= fsyswalk;
 51 8ad51794 2004-03-25 devnull 	fcall[Topen]	= fsysopen;
 52 8ad51794 2004-03-25 devnull 	fcall[Tcreate]	= fsyscreate;
 53 8ad51794 2004-03-25 devnull 	fcall[Tread]	= fsysread;
 54 8ad51794 2004-03-25 devnull 	fcall[Twrite]	= fsyswrite;
 55 8ad51794 2004-03-25 devnull 	fcall[Tclunk]	= fsysclunk;
 56 8ad51794 2004-03-25 devnull 	fcall[Tremove]= fsysremove;
 57 8ad51794 2004-03-25 devnull 	fcall[Tstat]	= fsysstat;
 58 8ad51794 2004-03-25 devnull 	fcall[Twstat]	= fsyswstat;
 59 8ad51794 2004-03-25 devnull }
 60 b3994ec5 2003-12-11 devnull 
 61 b3994ec5 2003-12-11 devnull char Eperm[] = "permission denied";
 62 b3994ec5 2003-12-11 devnull char Eexist[] = "file does not exist";
 63 b3994ec5 2003-12-11 devnull char Enotdir[] = "not a directory";
 64 b3994ec5 2003-12-11 devnull 
 65 b3994ec5 2003-12-11 devnull Dirtab dirtab[]=
 66 b3994ec5 2003-12-11 devnull {
 67 b3994ec5 2003-12-11 devnull 	{ ".",			QTDIR,	Qdir,		0500|DMDIR },
 68 b3994ec5 2003-12-11 devnull 	{ "acme",		QTDIR,	Qacme,	0500|DMDIR },
 69 b3994ec5 2003-12-11 devnull 	{ "cons",		QTFILE,	Qcons,	0600 },
 70 b3994ec5 2003-12-11 devnull 	{ "consctl",	QTFILE,	Qconsctl,	0000 },
 71 b3994ec5 2003-12-11 devnull 	{ "draw",		QTDIR,	Qdraw,	0000|DMDIR },	/* to suppress graphics progs started in acme */
 72 b3994ec5 2003-12-11 devnull 	{ "editout",	QTFILE,	Qeditout,	0200 },
 73 b3994ec5 2003-12-11 devnull 	{ "index",		QTFILE,	Qindex,	0400 },
 74 b3994ec5 2003-12-11 devnull 	{ "label",		QTFILE,	Qlabel,	0600 },
 75 4a3fb872 2014-04-30 rsc 	{ "log",		QTFILE,	Qlog,	0400 },
 76 b3994ec5 2003-12-11 devnull 	{ "new",		QTDIR,	Qnew,	0500|DMDIR },
 77 b3994ec5 2003-12-11 devnull 	{ nil, }
 78 b3994ec5 2003-12-11 devnull };
 79 b3994ec5 2003-12-11 devnull 
 80 b3994ec5 2003-12-11 devnull Dirtab dirtabw[]=
 81 b3994ec5 2003-12-11 devnull {
 82 b3994ec5 2003-12-11 devnull 	{ ".",			QTDIR,		Qdir,			0500|DMDIR },
 83 b3994ec5 2003-12-11 devnull 	{ "addr",		QTFILE,		QWaddr,		0600 },
 84 b3994ec5 2003-12-11 devnull 	{ "body",		QTAPPEND,	QWbody,		0600|DMAPPEND },
 85 b3994ec5 2003-12-11 devnull 	{ "ctl",		QTFILE,		QWctl,		0600 },
 86 b3994ec5 2003-12-11 devnull 	{ "data",		QTFILE,		QWdata,		0600 },
 87 b3994ec5 2003-12-11 devnull 	{ "editout",	QTFILE,		QWeditout,	0200 },
 88 9d01e221 2005-01-30 devnull 	{ "errors",		QTFILE,		QWerrors,		0200 },
 89 b3994ec5 2003-12-11 devnull 	{ "event",		QTFILE,		QWevent,		0600 },
 90 b3994ec5 2003-12-11 devnull 	{ "rdsel",		QTFILE,		QWrdsel,		0400 },
 91 b3994ec5 2003-12-11 devnull 	{ "wrsel",		QTFILE,		QWwrsel,		0200 },
 92 b3994ec5 2003-12-11 devnull 	{ "tag",		QTAPPEND,	QWtag,		0600|DMAPPEND },
 93 012a8a02 2004-10-22 devnull 	{ "xdata",		QTFILE,		QWxdata,		0600 },
 94 b3994ec5 2003-12-11 devnull 	{ nil, }
 95 b3994ec5 2003-12-11 devnull };
 96 b3994ec5 2003-12-11 devnull 
 97 b3994ec5 2003-12-11 devnull typedef struct Mnt Mnt;
 98 b3994ec5 2003-12-11 devnull struct Mnt
 99 b3994ec5 2003-12-11 devnull {
100 b3994ec5 2003-12-11 devnull 	QLock	lk;
101 b3994ec5 2003-12-11 devnull 	int		id;
102 b3994ec5 2003-12-11 devnull 	Mntdir	*md;
103 b3994ec5 2003-12-11 devnull };
104 b3994ec5 2003-12-11 devnull 
105 b3994ec5 2003-12-11 devnull Mnt	mnt;
106 b3994ec5 2003-12-11 devnull 
107 b3994ec5 2003-12-11 devnull Xfid*	respond(Xfid*, Fcall*, char*);
108 b3994ec5 2003-12-11 devnull int		dostat(int, Dirtab*, uchar*, int, uint);
109 b3994ec5 2003-12-11 devnull uint	getclock(void);
110 b3994ec5 2003-12-11 devnull 
111 b3994ec5 2003-12-11 devnull char	*user = "Wile E. Coyote";
112 b3994ec5 2003-12-11 devnull static int closing = 0;
113 b3994ec5 2003-12-11 devnull int	messagesize = Maxblock+IOHDRSZ;	/* good start */
114 b3994ec5 2003-12-11 devnull 
115 b3994ec5 2003-12-11 devnull void	fsysproc(void *);
116 b3994ec5 2003-12-11 devnull 
117 b3994ec5 2003-12-11 devnull void
118 b3994ec5 2003-12-11 devnull fsysinit(void)
119 b3994ec5 2003-12-11 devnull {
120 b3994ec5 2003-12-11 devnull 	int p[2];
121 5a8e63b2 2004-02-29 devnull 	char *u;
122 b3994ec5 2003-12-11 devnull 
123 8ad51794 2004-03-25 devnull 	initfcall();
124 b3994ec5 2003-12-11 devnull 	if(pipe(p) < 0)
125 b3994ec5 2003-12-11 devnull 		error("can't create pipe");
126 cd5a7378 2008-04-17 rsc 	if(post9pservice(p[0], "acme", mtpt) < 0)
127 b3994ec5 2003-12-11 devnull 		error("can't post service");
128 b3994ec5 2003-12-11 devnull 	sfd = p[1];
129 b3994ec5 2003-12-11 devnull 	fmtinstall('F', fcallfmt);
130 b3994ec5 2003-12-11 devnull 	if((u = getuser()) != nil)
131 b3994ec5 2003-12-11 devnull 		user = estrdup(u);
132 334cb1e9 2004-12-27 devnull 	proccreate(fsysproc, nil, STACK);
133 b3994ec5 2003-12-11 devnull }
134 b3994ec5 2003-12-11 devnull 
135 b3994ec5 2003-12-11 devnull void
136 b3994ec5 2003-12-11 devnull fsysproc(void *v)
137 b3994ec5 2003-12-11 devnull {
138 b3994ec5 2003-12-11 devnull 	int n;
139 b3994ec5 2003-12-11 devnull 	Xfid *x;
140 b3994ec5 2003-12-11 devnull 	Fid *f;
141 b3994ec5 2003-12-11 devnull 	Fcall t;
142 b3994ec5 2003-12-11 devnull 	uchar *buf;
143 391363f5 2005-09-26 devnull 
144 391363f5 2005-09-26 devnull 	threadsetname("fsysproc");
145 b3994ec5 2003-12-11 devnull 
146 b3994ec5 2003-12-11 devnull 	USED(v);
147 b3994ec5 2003-12-11 devnull 	x = nil;
148 b3994ec5 2003-12-11 devnull 	for(;;){
149 b3994ec5 2003-12-11 devnull 		buf = emalloc(messagesize+UTFmax);	/* overflow for appending partial rune in xfidwrite */
150 334cb1e9 2004-12-27 devnull 		n = read9pmsg(sfd, buf, messagesize);
151 b3994ec5 2003-12-11 devnull 		if(n <= 0){
152 b3994ec5 2003-12-11 devnull 			if(closing)
153 b3994ec5 2003-12-11 devnull 				break;
154 b3994ec5 2003-12-11 devnull 			error("i/o error on server channel");
155 b3994ec5 2003-12-11 devnull 		}
156 b3994ec5 2003-12-11 devnull 		if(x == nil){
157 b3994ec5 2003-12-11 devnull 			sendp(cxfidalloc, nil);
158 b3994ec5 2003-12-11 devnull 			x = recvp(cxfidalloc);
159 b3994ec5 2003-12-11 devnull 		}
160 b3994ec5 2003-12-11 devnull 		x->buf = buf;
161 b3994ec5 2003-12-11 devnull 		if(convM2S(buf, n, &x->fcall) != n)
162 b3994ec5 2003-12-11 devnull 			error("convert error in convM2S");
163 b3994ec5 2003-12-11 devnull 		if(DEBUG)
164 b3994ec5 2003-12-11 devnull 			fprint(2, "%F\n", &x->fcall);
165 8c061315 2005-03-18 devnull 		if(fcall[x->fcall.type] == nil)
166 b3994ec5 2003-12-11 devnull 			x = respond(x, &t, "bad fcall type");
167 b3994ec5 2003-12-11 devnull 		else{
168 07494878 2005-01-27 devnull 			switch(x->fcall.type){
169 07494878 2005-01-27 devnull 			case Tversion:
170 07494878 2005-01-27 devnull 			case Tauth:
171 07494878 2005-01-27 devnull 			case Tflush:
172 b3994ec5 2003-12-11 devnull 				f = nil;
173 07494878 2005-01-27 devnull 				break;
174 07494878 2005-01-27 devnull 			case Tattach:
175 07494878 2005-01-27 devnull 				f = newfid(x->fcall.fid);
176 07494878 2005-01-27 devnull 				break;
177 07494878 2005-01-27 devnull 			default:
178 b3994ec5 2003-12-11 devnull 				f = newfid(x->fcall.fid);
179 07494878 2005-01-27 devnull 				if(!f->busy){
180 07494878 2005-01-27 devnull 					x->f = f;
181 07494878 2005-01-27 devnull 					x = respond(x, &t, "fid not in use");
182 07494878 2005-01-27 devnull 					continue;
183 07494878 2005-01-27 devnull 				}
184 07494878 2005-01-27 devnull 				break;
185 07494878 2005-01-27 devnull 			}
186 b3994ec5 2003-12-11 devnull 			x->f = f;
187 b3994ec5 2003-12-11 devnull 			x  = (*fcall[x->fcall.type])(x, f);
188 b3994ec5 2003-12-11 devnull 		}
189 b3994ec5 2003-12-11 devnull 	}
190 b3994ec5 2003-12-11 devnull }
191 b3994ec5 2003-12-11 devnull 
192 b3994ec5 2003-12-11 devnull Mntdir*
193 b3994ec5 2003-12-11 devnull fsysaddid(Rune *dir, int ndir, Rune **incl, int nincl)
194 b3994ec5 2003-12-11 devnull {
195 b3994ec5 2003-12-11 devnull 	Mntdir *m;
196 b3994ec5 2003-12-11 devnull 	int id;
197 b3994ec5 2003-12-11 devnull 
198 b3994ec5 2003-12-11 devnull 	qlock(&mnt.lk);
199 b3994ec5 2003-12-11 devnull 	id = ++mnt.id;
200 b3994ec5 2003-12-11 devnull 	m = emalloc(sizeof *m);
201 b3994ec5 2003-12-11 devnull 	m->id = id;
202 b3994ec5 2003-12-11 devnull 	m->dir =  dir;
203 b3994ec5 2003-12-11 devnull 	m->ref = 1;	/* one for Command, one will be incremented in attach */
204 b3994ec5 2003-12-11 devnull 	m->ndir = ndir;
205 b3994ec5 2003-12-11 devnull 	m->next = mnt.md;
206 b3994ec5 2003-12-11 devnull 	m->incl = incl;
207 b3994ec5 2003-12-11 devnull 	m->nincl = nincl;
208 b3994ec5 2003-12-11 devnull 	mnt.md = m;
209 b3994ec5 2003-12-11 devnull 	qunlock(&mnt.lk);
210 b3994ec5 2003-12-11 devnull 	return m;
211 b3994ec5 2003-12-11 devnull }
212 b3994ec5 2003-12-11 devnull 
213 b3994ec5 2003-12-11 devnull void
214 8ad51794 2004-03-25 devnull fsysincid(Mntdir *m)
215 8ad51794 2004-03-25 devnull {
216 8ad51794 2004-03-25 devnull 	qlock(&mnt.lk);
217 8ad51794 2004-03-25 devnull 	m->ref++;
218 8ad51794 2004-03-25 devnull 	qunlock(&mnt.lk);
219 8ad51794 2004-03-25 devnull }
220 8ad51794 2004-03-25 devnull 
221 8ad51794 2004-03-25 devnull void
222 b3994ec5 2003-12-11 devnull fsysdelid(Mntdir *idm)
223 b3994ec5 2003-12-11 devnull {
224 b3994ec5 2003-12-11 devnull 	Mntdir *m, *prev;
225 b3994ec5 2003-12-11 devnull 	int i;
226 b3994ec5 2003-12-11 devnull 	char buf[64];
227 b3994ec5 2003-12-11 devnull 
228 b3994ec5 2003-12-11 devnull 	if(idm == nil)
229 b3994ec5 2003-12-11 devnull 		return;
230 b3994ec5 2003-12-11 devnull 	qlock(&mnt.lk);
231 b3994ec5 2003-12-11 devnull 	if(--idm->ref > 0){
232 b3994ec5 2003-12-11 devnull 		qunlock(&mnt.lk);
233 b3994ec5 2003-12-11 devnull 		return;
234 b3994ec5 2003-12-11 devnull 	}
235 b3994ec5 2003-12-11 devnull 	prev = nil;
236 b3994ec5 2003-12-11 devnull 	for(m=mnt.md; m; m=m->next){
237 b3994ec5 2003-12-11 devnull 		if(m == idm){
238 b3994ec5 2003-12-11 devnull 			if(prev)
239 b3994ec5 2003-12-11 devnull 				prev->next = m->next;
240 b3994ec5 2003-12-11 devnull 			else
241 b3994ec5 2003-12-11 devnull 				mnt.md = m->next;
242 b3994ec5 2003-12-11 devnull 			for(i=0; i<m->nincl; i++)
243 b3994ec5 2003-12-11 devnull 				free(m->incl[i]);
244 b3994ec5 2003-12-11 devnull 			free(m->incl);
245 b3994ec5 2003-12-11 devnull 			free(m->dir);
246 b3994ec5 2003-12-11 devnull 			free(m);
247 b3994ec5 2003-12-11 devnull 			qunlock(&mnt.lk);
248 b3994ec5 2003-12-11 devnull 			return;
249 b3994ec5 2003-12-11 devnull 		}
250 b3994ec5 2003-12-11 devnull 		prev = m;
251 b3994ec5 2003-12-11 devnull 	}
252 b3994ec5 2003-12-11 devnull 	qunlock(&mnt.lk);
253 b3994ec5 2003-12-11 devnull 	sprint(buf, "fsysdelid: can't find id %d\n", idm->id);
254 b3994ec5 2003-12-11 devnull 	sendp(cerr, estrdup(buf));
255 b3994ec5 2003-12-11 devnull }
256 b3994ec5 2003-12-11 devnull 
257 b3994ec5 2003-12-11 devnull /*
258 b3994ec5 2003-12-11 devnull  * Called only in exec.c:/^run(), from a different FD group
259 b3994ec5 2003-12-11 devnull  */
260 b3994ec5 2003-12-11 devnull Mntdir*
261 b3994ec5 2003-12-11 devnull fsysmount(Rune *dir, int ndir, Rune **incl, int nincl)
262 b3994ec5 2003-12-11 devnull {
263 b3994ec5 2003-12-11 devnull 	return fsysaddid(dir, ndir, incl, nincl);
264 b3994ec5 2003-12-11 devnull }
265 b3994ec5 2003-12-11 devnull 
266 b3994ec5 2003-12-11 devnull void
267 b3994ec5 2003-12-11 devnull fsysclose(void)
268 b3994ec5 2003-12-11 devnull {
269 b3994ec5 2003-12-11 devnull 	closing = 1;
270 d242e5ad 2005-07-22 devnull 	/*
271 d242e5ad 2005-07-22 devnull 	 * apparently this is not kosher on openbsd.
272 d242e5ad 2005-07-22 devnull 	 * perhaps because fsysproc is reading from sfd right now,
273 d242e5ad 2005-07-22 devnull 	 * the close hangs indefinitely.
274 b3994ec5 2003-12-11 devnull 	close(sfd);
275 d242e5ad 2005-07-22 devnull 	 */
276 b3994ec5 2003-12-11 devnull }
277 b3994ec5 2003-12-11 devnull 
278 b3994ec5 2003-12-11 devnull Xfid*
279 b3994ec5 2003-12-11 devnull respond(Xfid *x, Fcall *t, char *err)
280 b3994ec5 2003-12-11 devnull {
281 b3994ec5 2003-12-11 devnull 	int n;
282 b3994ec5 2003-12-11 devnull 
283 b3994ec5 2003-12-11 devnull 	if(err){
284 b3994ec5 2003-12-11 devnull 		t->type = Rerror;
285 b3994ec5 2003-12-11 devnull 		t->ename = err;
286 b3994ec5 2003-12-11 devnull 	}else
287 b3994ec5 2003-12-11 devnull 		t->type = x->fcall.type+1;
288 b3994ec5 2003-12-11 devnull 	t->fid = x->fcall.fid;
289 b3994ec5 2003-12-11 devnull 	t->tag = x->fcall.tag;
290 b3994ec5 2003-12-11 devnull 	if(x->buf == nil)
291 b3994ec5 2003-12-11 devnull 		x->buf = emalloc(messagesize);
292 b3994ec5 2003-12-11 devnull 	n = convS2M(t, x->buf, messagesize);
293 b3994ec5 2003-12-11 devnull 	if(n <= 0)
294 b3994ec5 2003-12-11 devnull 		error("convert error in convS2M");
295 b3994ec5 2003-12-11 devnull 	if(write(sfd, x->buf, n) != n)
296 b3994ec5 2003-12-11 devnull 		error("write error in respond");
297 b3994ec5 2003-12-11 devnull 	free(x->buf);
298 b3994ec5 2003-12-11 devnull 	x->buf = nil;
299 b3994ec5 2003-12-11 devnull 	if(DEBUG)
300 b3994ec5 2003-12-11 devnull 		fprint(2, "r: %F\n", t);
301 b3994ec5 2003-12-11 devnull 	return x;
302 b3994ec5 2003-12-11 devnull }
303 b3994ec5 2003-12-11 devnull 
304 b3994ec5 2003-12-11 devnull static
305 b3994ec5 2003-12-11 devnull Xfid*
306 b3994ec5 2003-12-11 devnull fsysversion(Xfid *x, Fid *f)
307 b3994ec5 2003-12-11 devnull {
308 b3994ec5 2003-12-11 devnull 	Fcall t;
309 b3994ec5 2003-12-11 devnull 
310 b3994ec5 2003-12-11 devnull 	USED(f);
311 b3994ec5 2003-12-11 devnull 	if(x->fcall.msize < 256)
312 b3994ec5 2003-12-11 devnull 		return respond(x, &t, "version: message size too small");
313 b3994ec5 2003-12-11 devnull 	messagesize = x->fcall.msize;
314 b3994ec5 2003-12-11 devnull 	t.msize = messagesize;
315 b3994ec5 2003-12-11 devnull 	if(strncmp(x->fcall.version, "9P2000", 6) != 0)
316 b3994ec5 2003-12-11 devnull 		return respond(x, &t, "unrecognized 9P version");
317 b3994ec5 2003-12-11 devnull 	t.version = "9P2000";
318 b3994ec5 2003-12-11 devnull 	return respond(x, &t, nil);
319 b3994ec5 2003-12-11 devnull }
320 b3994ec5 2003-12-11 devnull 
321 b3994ec5 2003-12-11 devnull static
322 b3994ec5 2003-12-11 devnull Xfid*
323 b3994ec5 2003-12-11 devnull fsysauth(Xfid *x, Fid *f)
324 b3994ec5 2003-12-11 devnull {
325 5aa723da 2005-02-11 devnull 	Fcall t;
326 5aa723da 2005-02-11 devnull 
327 b3994ec5 2003-12-11 devnull 	USED(f);
328 5aa723da 2005-02-11 devnull 	return respond(x, &t, "acme: authentication not required");
329 b3994ec5 2003-12-11 devnull }
330 b3994ec5 2003-12-11 devnull 
331 b3994ec5 2003-12-11 devnull static
332 b3994ec5 2003-12-11 devnull Xfid*
333 b3994ec5 2003-12-11 devnull fsysflush(Xfid *x, Fid *f)
334 b3994ec5 2003-12-11 devnull {
335 b3994ec5 2003-12-11 devnull 	USED(f);
336 be22ae2d 2004-03-26 devnull 	sendp(x->c, (void*)xfidflush);
337 b3994ec5 2003-12-11 devnull 	return nil;
338 b3994ec5 2003-12-11 devnull }
339 b3994ec5 2003-12-11 devnull 
340 b3994ec5 2003-12-11 devnull static
341 b3994ec5 2003-12-11 devnull Xfid*
342 b3994ec5 2003-12-11 devnull fsysattach(Xfid *x, Fid *f)
343 b3994ec5 2003-12-11 devnull {
344 b3994ec5 2003-12-11 devnull 	Fcall t;
345 b3994ec5 2003-12-11 devnull 	int id;
346 b3994ec5 2003-12-11 devnull 	Mntdir *m;
347 49588d5d 2003-12-17 devnull 	char buf[128];
348 b3994ec5 2003-12-11 devnull 
349 b3994ec5 2003-12-11 devnull 	if(strcmp(x->fcall.uname, user) != 0)
350 b3994ec5 2003-12-11 devnull 		return respond(x, &t, Eperm);
351 b3994ec5 2003-12-11 devnull 	f->busy = TRUE;
352 b3994ec5 2003-12-11 devnull 	f->open = FALSE;
353 b3994ec5 2003-12-11 devnull 	f->qid.path = Qdir;
354 b3994ec5 2003-12-11 devnull 	f->qid.type = QTDIR;
355 b3994ec5 2003-12-11 devnull 	f->qid.vers = 0;
356 b3994ec5 2003-12-11 devnull 	f->dir = dirtab;
357 b3994ec5 2003-12-11 devnull 	f->nrpart = 0;
358 b3994ec5 2003-12-11 devnull 	f->w = nil;
359 b3994ec5 2003-12-11 devnull 	t.qid = f->qid;
360 b3994ec5 2003-12-11 devnull 	f->mntdir = nil;
361 b3994ec5 2003-12-11 devnull 	id = atoi(x->fcall.aname);
362 b3994ec5 2003-12-11 devnull 	qlock(&mnt.lk);
363 b3994ec5 2003-12-11 devnull 	for(m=mnt.md; m; m=m->next)
364 b3994ec5 2003-12-11 devnull 		if(m->id == id){
365 b3994ec5 2003-12-11 devnull 			f->mntdir = m;
366 b3994ec5 2003-12-11 devnull 			m->ref++;
367 b3994ec5 2003-12-11 devnull 			break;
368 b3994ec5 2003-12-11 devnull 		}
369 8ad51794 2004-03-25 devnull 	if(m == nil && x->fcall.aname[0]){
370 49588d5d 2003-12-17 devnull 		snprint(buf, sizeof buf, "unknown id '%s' in attach", x->fcall.aname);
371 49588d5d 2003-12-17 devnull 		sendp(cerr, estrdup(buf));
372 49588d5d 2003-12-17 devnull 	}
373 b3994ec5 2003-12-11 devnull 	qunlock(&mnt.lk);
374 b3994ec5 2003-12-11 devnull 	return respond(x, &t, nil);
375 b3994ec5 2003-12-11 devnull }
376 b3994ec5 2003-12-11 devnull 
377 b3994ec5 2003-12-11 devnull static
378 b3994ec5 2003-12-11 devnull Xfid*
379 b3994ec5 2003-12-11 devnull fsyswalk(Xfid *x, Fid *f)
380 b3994ec5 2003-12-11 devnull {
381 b3994ec5 2003-12-11 devnull 	Fcall t;
382 b3994ec5 2003-12-11 devnull 	int c, i, j, id;
383 b3994ec5 2003-12-11 devnull 	Qid q;
384 b3994ec5 2003-12-11 devnull 	uchar type;
385 b3994ec5 2003-12-11 devnull 	ulong path;
386 b3994ec5 2003-12-11 devnull 	Fid *nf;
387 b3994ec5 2003-12-11 devnull 	Dirtab *d, *dir;
388 b3994ec5 2003-12-11 devnull 	Window *w;
389 b3994ec5 2003-12-11 devnull 	char *err;
390 b3994ec5 2003-12-11 devnull 
391 b3994ec5 2003-12-11 devnull 	nf = nil;
392 b3994ec5 2003-12-11 devnull 	w = nil;
393 b3994ec5 2003-12-11 devnull 	if(f->open)
394 b3994ec5 2003-12-11 devnull 		return respond(x, &t, "walk of open file");
395 b3994ec5 2003-12-11 devnull 	if(x->fcall.fid != x->fcall.newfid){
396 b3994ec5 2003-12-11 devnull 		nf = newfid(x->fcall.newfid);
397 b3994ec5 2003-12-11 devnull 		if(nf->busy)
398 b3994ec5 2003-12-11 devnull 			return respond(x, &t, "newfid already in use");
399 b3994ec5 2003-12-11 devnull 		nf->busy = TRUE;
400 b3994ec5 2003-12-11 devnull 		nf->open = FALSE;
401 b3994ec5 2003-12-11 devnull 		nf->mntdir = f->mntdir;
402 b3994ec5 2003-12-11 devnull 		if(f->mntdir)
403 b3994ec5 2003-12-11 devnull 			f->mntdir->ref++;
404 b3994ec5 2003-12-11 devnull 		nf->dir = f->dir;
405 b3994ec5 2003-12-11 devnull 		nf->qid = f->qid;
406 b3994ec5 2003-12-11 devnull 		nf->w = f->w;
407 b3994ec5 2003-12-11 devnull 		nf->nrpart = 0;	/* not open, so must be zero */
408 b3994ec5 2003-12-11 devnull 		if(nf->w)
409 b3994ec5 2003-12-11 devnull 			incref(&nf->w->ref);
410 b3994ec5 2003-12-11 devnull 		f = nf;	/* walk f */
411 b3994ec5 2003-12-11 devnull 	}
412 b3994ec5 2003-12-11 devnull 
413 b3994ec5 2003-12-11 devnull 	t.nwqid = 0;
414 b3994ec5 2003-12-11 devnull 	err = nil;
415 b3994ec5 2003-12-11 devnull 	dir = nil;
416 b3994ec5 2003-12-11 devnull 	id = WIN(f->qid);
417 b3994ec5 2003-12-11 devnull 	q = f->qid;
418 b3994ec5 2003-12-11 devnull 
419 b3994ec5 2003-12-11 devnull 	if(x->fcall.nwname > 0){
420 b3994ec5 2003-12-11 devnull 		for(i=0; i<x->fcall.nwname; i++){
421 b3994ec5 2003-12-11 devnull 			if((q.type & QTDIR) == 0){
422 b3994ec5 2003-12-11 devnull 				err = Enotdir;
423 b3994ec5 2003-12-11 devnull 				break;
424 b3994ec5 2003-12-11 devnull 			}
425 b3994ec5 2003-12-11 devnull 
426 b3994ec5 2003-12-11 devnull 			if(strcmp(x->fcall.wname[i], "..") == 0){
427 b3994ec5 2003-12-11 devnull 				type = QTDIR;
428 b3994ec5 2003-12-11 devnull 				path = Qdir;
429 b3994ec5 2003-12-11 devnull 				id = 0;
430 b3994ec5 2003-12-11 devnull 				if(w){
431 b3994ec5 2003-12-11 devnull 					winclose(w);
432 b3994ec5 2003-12-11 devnull 					w = nil;
433 b3994ec5 2003-12-11 devnull 				}
434 b3994ec5 2003-12-11 devnull     Accept:
435 b3994ec5 2003-12-11 devnull 				if(i == MAXWELEM){
436 b3994ec5 2003-12-11 devnull 					err = "name too long";
437 b3994ec5 2003-12-11 devnull 					break;
438 b3994ec5 2003-12-11 devnull 				}
439 b3994ec5 2003-12-11 devnull 				q.type = type;
440 b3994ec5 2003-12-11 devnull 				q.vers = 0;
441 b3994ec5 2003-12-11 devnull 				q.path = QID(id, path);
442 b3994ec5 2003-12-11 devnull 				t.wqid[t.nwqid++] = q;
443 b3994ec5 2003-12-11 devnull 				continue;
444 b3994ec5 2003-12-11 devnull 			}
445 b3994ec5 2003-12-11 devnull 
446 b3994ec5 2003-12-11 devnull 			/* is it a numeric name? */
447 b3994ec5 2003-12-11 devnull 			for(j=0; (c=x->fcall.wname[i][j]); j++)
448 b3994ec5 2003-12-11 devnull 				if(c<'0' || '9'<c)
449 b3994ec5 2003-12-11 devnull 					goto Regular;
450 b3994ec5 2003-12-11 devnull 			/* yes: it's a directory */
451 b3994ec5 2003-12-11 devnull 			if(w)	/* name has form 27/23; get out before losing w */
452 b3994ec5 2003-12-11 devnull 				break;
453 b3994ec5 2003-12-11 devnull 			id = atoi(x->fcall.wname[i]);
454 b3994ec5 2003-12-11 devnull 			qlock(&row.lk);
455 b3994ec5 2003-12-11 devnull 			w = lookid(id, FALSE);
456 b3994ec5 2003-12-11 devnull 			if(w == nil){
457 b3994ec5 2003-12-11 devnull 				qunlock(&row.lk);
458 b3994ec5 2003-12-11 devnull 				break;
459 b3994ec5 2003-12-11 devnull 			}
460 b3994ec5 2003-12-11 devnull 			incref(&w->ref);	/* we'll drop reference at end if there's an error */
461 b3994ec5 2003-12-11 devnull 			path = Qdir;
462 b3994ec5 2003-12-11 devnull 			type = QTDIR;
463 b3994ec5 2003-12-11 devnull 			qunlock(&row.lk);
464 b3994ec5 2003-12-11 devnull 			dir = dirtabw;
465 b3994ec5 2003-12-11 devnull 			goto Accept;
466 fa325e9b 2020-01-10 cross 
467 b3994ec5 2003-12-11 devnull     Regular:
468 b3994ec5 2003-12-11 devnull 			if(strcmp(x->fcall.wname[i], "new") == 0){
469 b3994ec5 2003-12-11 devnull 				if(w)
470 b3994ec5 2003-12-11 devnull 					error("w set in walk to new");
471 b3994ec5 2003-12-11 devnull 				sendp(cnewwindow, nil);	/* signal newwindowthread */
472 b3994ec5 2003-12-11 devnull 				w = recvp(cnewwindow);	/* receive new window */
473 b3994ec5 2003-12-11 devnull 				incref(&w->ref);
474 b3994ec5 2003-12-11 devnull 				type = QTDIR;
475 b3994ec5 2003-12-11 devnull 				path = QID(w->id, Qdir);
476 b3994ec5 2003-12-11 devnull 				id = w->id;
477 b3994ec5 2003-12-11 devnull 				dir = dirtabw;
478 b3994ec5 2003-12-11 devnull 				goto Accept;
479 b3994ec5 2003-12-11 devnull 			}
480 b3994ec5 2003-12-11 devnull 
481 b3994ec5 2003-12-11 devnull 			if(id == 0)
482 b3994ec5 2003-12-11 devnull 				d = dirtab;
483 b3994ec5 2003-12-11 devnull 			else
484 b3994ec5 2003-12-11 devnull 				d = dirtabw;
485 b3994ec5 2003-12-11 devnull 			d++;	/* skip '.' */
486 b3994ec5 2003-12-11 devnull 			for(; d->name; d++)
487 b3994ec5 2003-12-11 devnull 				if(strcmp(x->fcall.wname[i], d->name) == 0){
488 b3994ec5 2003-12-11 devnull 					path = d->qid;
489 b3994ec5 2003-12-11 devnull 					type = d->type;
490 b3994ec5 2003-12-11 devnull 					dir = d;
491 b3994ec5 2003-12-11 devnull 					goto Accept;
492 b3994ec5 2003-12-11 devnull 				}
493 b3994ec5 2003-12-11 devnull 
494 b3994ec5 2003-12-11 devnull 			break;	/* file not found */
495 b3994ec5 2003-12-11 devnull 		}
496 b3994ec5 2003-12-11 devnull 
497 b3994ec5 2003-12-11 devnull 		if(i==0 && err == nil)
498 b3994ec5 2003-12-11 devnull 			err = Eexist;
499 b3994ec5 2003-12-11 devnull 	}
500 b3994ec5 2003-12-11 devnull 
501 b3994ec5 2003-12-11 devnull 	if(err!=nil || t.nwqid<x->fcall.nwname){
502 b3994ec5 2003-12-11 devnull 		if(nf){
503 b3994ec5 2003-12-11 devnull 			nf->busy = FALSE;
504 b3994ec5 2003-12-11 devnull 			fsysdelid(nf->mntdir);
505 b3994ec5 2003-12-11 devnull 		}
506 b3994ec5 2003-12-11 devnull 	}else if(t.nwqid  == x->fcall.nwname){
507 b3994ec5 2003-12-11 devnull 		if(w){
508 b3994ec5 2003-12-11 devnull 			f->w = w;
509 b3994ec5 2003-12-11 devnull 			w = nil;	/* don't drop the reference */
510 b3994ec5 2003-12-11 devnull 		}
511 b3994ec5 2003-12-11 devnull 		if(dir)
512 b3994ec5 2003-12-11 devnull 			f->dir = dir;
513 b3994ec5 2003-12-11 devnull 		f->qid = q;
514 b3994ec5 2003-12-11 devnull 	}
515 b3994ec5 2003-12-11 devnull 
516 b3994ec5 2003-12-11 devnull 	if(w != nil)
517 b3994ec5 2003-12-11 devnull 		winclose(w);
518 b3994ec5 2003-12-11 devnull 
519 b3994ec5 2003-12-11 devnull 	return respond(x, &t, err);
520 b3994ec5 2003-12-11 devnull }
521 b3994ec5 2003-12-11 devnull 
522 b3994ec5 2003-12-11 devnull static
523 b3994ec5 2003-12-11 devnull Xfid*
524 b3994ec5 2003-12-11 devnull fsysopen(Xfid *x, Fid *f)
525 b3994ec5 2003-12-11 devnull {
526 b3994ec5 2003-12-11 devnull 	Fcall t;
527 b3994ec5 2003-12-11 devnull 	int m;
528 b3994ec5 2003-12-11 devnull 
529 b3994ec5 2003-12-11 devnull 	/* can't truncate anything, so just disregard */
530 b3994ec5 2003-12-11 devnull 	x->fcall.mode &= ~(OTRUNC|OCEXEC);
531 b3994ec5 2003-12-11 devnull 	/* can't execute or remove anything */
532 b3994ec5 2003-12-11 devnull 	if(x->fcall.mode==OEXEC || (x->fcall.mode&ORCLOSE))
533 b3994ec5 2003-12-11 devnull 		goto Deny;
534 b3994ec5 2003-12-11 devnull 	switch(x->fcall.mode){
535 b3994ec5 2003-12-11 devnull 	default:
536 b3994ec5 2003-12-11 devnull 		goto Deny;
537 b3994ec5 2003-12-11 devnull 	case OREAD:
538 b3994ec5 2003-12-11 devnull 		m = 0400;
539 b3994ec5 2003-12-11 devnull 		break;
540 b3994ec5 2003-12-11 devnull 	case OWRITE:
541 b3994ec5 2003-12-11 devnull 		m = 0200;
542 b3994ec5 2003-12-11 devnull 		break;
543 b3994ec5 2003-12-11 devnull 	case ORDWR:
544 b3994ec5 2003-12-11 devnull 		m = 0600;
545 b3994ec5 2003-12-11 devnull 		break;
546 b3994ec5 2003-12-11 devnull 	}
547 b3994ec5 2003-12-11 devnull 	if(((f->dir->perm&~(DMDIR|DMAPPEND))&m) != m)
548 b3994ec5 2003-12-11 devnull 		goto Deny;
549 b3994ec5 2003-12-11 devnull 
550 be22ae2d 2004-03-26 devnull 	sendp(x->c, (void*)xfidopen);
551 b3994ec5 2003-12-11 devnull 	return nil;
552 b3994ec5 2003-12-11 devnull 
553 b3994ec5 2003-12-11 devnull     Deny:
554 b3994ec5 2003-12-11 devnull 	return respond(x, &t, Eperm);
555 b3994ec5 2003-12-11 devnull }
556 b3994ec5 2003-12-11 devnull 
557 b3994ec5 2003-12-11 devnull static
558 b3994ec5 2003-12-11 devnull Xfid*
559 b3994ec5 2003-12-11 devnull fsyscreate(Xfid *x, Fid *f)
560 b3994ec5 2003-12-11 devnull {
561 b3994ec5 2003-12-11 devnull 	Fcall t;
562 b3994ec5 2003-12-11 devnull 
563 b3994ec5 2003-12-11 devnull 	USED(f);
564 b3994ec5 2003-12-11 devnull 	return respond(x, &t, Eperm);
565 b3994ec5 2003-12-11 devnull }
566 b3994ec5 2003-12-11 devnull 
567 b3994ec5 2003-12-11 devnull static
568 b3994ec5 2003-12-11 devnull int
569 b3994ec5 2003-12-11 devnull idcmp(const void *a, const void *b)
570 b3994ec5 2003-12-11 devnull {
571 b3994ec5 2003-12-11 devnull 	return *(int*)a - *(int*)b;
572 b3994ec5 2003-12-11 devnull }
573 b3994ec5 2003-12-11 devnull 
574 b3994ec5 2003-12-11 devnull static
575 b3994ec5 2003-12-11 devnull Xfid*
576 b3994ec5 2003-12-11 devnull fsysread(Xfid *x, Fid *f)
577 b3994ec5 2003-12-11 devnull {
578 b3994ec5 2003-12-11 devnull 	Fcall t;
579 b3994ec5 2003-12-11 devnull 	uchar *b;
580 b3994ec5 2003-12-11 devnull 	int i, id, n, o, e, j, k, *ids, nids;
581 b3994ec5 2003-12-11 devnull 	Dirtab *d, dt;
582 b3994ec5 2003-12-11 devnull 	Column *c;
583 b3994ec5 2003-12-11 devnull 	uint clock, len;
584 b3994ec5 2003-12-11 devnull 	char buf[16];
585 b3994ec5 2003-12-11 devnull 
586 b3994ec5 2003-12-11 devnull 	if(f->qid.type & QTDIR){
587 b3994ec5 2003-12-11 devnull 		if(FILE(f->qid) == Qacme){	/* empty dir */
588 b3994ec5 2003-12-11 devnull 			t.data = nil;
589 b3994ec5 2003-12-11 devnull 			t.count = 0;
590 b3994ec5 2003-12-11 devnull 			respond(x, &t, nil);
591 b3994ec5 2003-12-11 devnull 			return x;
592 b3994ec5 2003-12-11 devnull 		}
593 b3994ec5 2003-12-11 devnull 		o = x->fcall.offset;
594 b3994ec5 2003-12-11 devnull 		e = x->fcall.offset+x->fcall.count;
595 b3994ec5 2003-12-11 devnull 		clock = getclock();
596 b3994ec5 2003-12-11 devnull 		b = emalloc(messagesize);
597 b3994ec5 2003-12-11 devnull 		id = WIN(f->qid);
598 b3994ec5 2003-12-11 devnull 		n = 0;
599 b3994ec5 2003-12-11 devnull 		if(id > 0)
600 b3994ec5 2003-12-11 devnull 			d = dirtabw;
601 b3994ec5 2003-12-11 devnull 		else
602 b3994ec5 2003-12-11 devnull 			d = dirtab;
603 b3994ec5 2003-12-11 devnull 		d++;	/* first entry is '.' */
604 b3994ec5 2003-12-11 devnull 		for(i=0; d->name!=nil && i<e; i+=len){
605 b3994ec5 2003-12-11 devnull 			len = dostat(WIN(x->f->qid), d, b+n, x->fcall.count-n, clock);
606 b3994ec5 2003-12-11 devnull 			if(len <= BIT16SZ)
607 b3994ec5 2003-12-11 devnull 				break;
608 b3994ec5 2003-12-11 devnull 			if(i >= o)
609 b3994ec5 2003-12-11 devnull 				n += len;
610 b3994ec5 2003-12-11 devnull 			d++;
611 b3994ec5 2003-12-11 devnull 		}
612 b3994ec5 2003-12-11 devnull 		if(id == 0){
613 b3994ec5 2003-12-11 devnull 			qlock(&row.lk);
614 b3994ec5 2003-12-11 devnull 			nids = 0;
615 b3994ec5 2003-12-11 devnull 			ids = nil;
616 b3994ec5 2003-12-11 devnull 			for(j=0; j<row.ncol; j++){
617 b3994ec5 2003-12-11 devnull 				c = row.col[j];
618 b3994ec5 2003-12-11 devnull 				for(k=0; k<c->nw; k++){
619 b3994ec5 2003-12-11 devnull 					ids = realloc(ids, (nids+1)*sizeof(int));
620 b3994ec5 2003-12-11 devnull 					ids[nids++] = c->w[k]->id;
621 b3994ec5 2003-12-11 devnull 				}
622 b3994ec5 2003-12-11 devnull 			}
623 b3994ec5 2003-12-11 devnull 			qunlock(&row.lk);
624 b3994ec5 2003-12-11 devnull 			qsort(ids, nids, sizeof ids[0], idcmp);
625 b3994ec5 2003-12-11 devnull 			j = 0;
626 b3994ec5 2003-12-11 devnull 			dt.name = buf;
627 b3994ec5 2003-12-11 devnull 			for(; j<nids && i<e; i+=len){
628 b3994ec5 2003-12-11 devnull 				k = ids[j];
629 b3994ec5 2003-12-11 devnull 				sprint(dt.name, "%d", k);
630 b3994ec5 2003-12-11 devnull 				dt.qid = QID(k, Qdir);
631 b3994ec5 2003-12-11 devnull 				dt.type = QTDIR;
632 b3994ec5 2003-12-11 devnull 				dt.perm = DMDIR|0700;
633 b3994ec5 2003-12-11 devnull 				len = dostat(k, &dt, b+n, x->fcall.count-n, clock);
634 b3994ec5 2003-12-11 devnull 				if(len == 0)
635 b3994ec5 2003-12-11 devnull 					break;
636 b3994ec5 2003-12-11 devnull 				if(i >= o)
637 b3994ec5 2003-12-11 devnull 					n += len;
638 b3994ec5 2003-12-11 devnull 				j++;
639 b3994ec5 2003-12-11 devnull 			}
640 b3994ec5 2003-12-11 devnull 			free(ids);
641 b3994ec5 2003-12-11 devnull 		}
642 b3994ec5 2003-12-11 devnull 		t.data = (char*)b;
643 b3994ec5 2003-12-11 devnull 		t.count = n;
644 b3994ec5 2003-12-11 devnull 		respond(x, &t, nil);
645 b3994ec5 2003-12-11 devnull 		free(b);
646 b3994ec5 2003-12-11 devnull 		return x;
647 b3994ec5 2003-12-11 devnull 	}
648 be22ae2d 2004-03-26 devnull 	sendp(x->c, (void*)xfidread);
649 b3994ec5 2003-12-11 devnull 	return nil;
650 b3994ec5 2003-12-11 devnull }
651 b3994ec5 2003-12-11 devnull 
652 b3994ec5 2003-12-11 devnull static
653 b3994ec5 2003-12-11 devnull Xfid*
654 b3994ec5 2003-12-11 devnull fsyswrite(Xfid *x, Fid *f)
655 b3994ec5 2003-12-11 devnull {
656 b3994ec5 2003-12-11 devnull 	USED(f);
657 be22ae2d 2004-03-26 devnull 	sendp(x->c, (void*)xfidwrite);
658 b3994ec5 2003-12-11 devnull 	return nil;
659 b3994ec5 2003-12-11 devnull }
660 b3994ec5 2003-12-11 devnull 
661 b3994ec5 2003-12-11 devnull static
662 b3994ec5 2003-12-11 devnull Xfid*
663 b3994ec5 2003-12-11 devnull fsysclunk(Xfid *x, Fid *f)
664 b3994ec5 2003-12-11 devnull {
665 b3994ec5 2003-12-11 devnull 	fsysdelid(f->mntdir);
666 be22ae2d 2004-03-26 devnull 	sendp(x->c, (void*)xfidclose);
667 b3994ec5 2003-12-11 devnull 	return nil;
668 b3994ec5 2003-12-11 devnull }
669 b3994ec5 2003-12-11 devnull 
670 b3994ec5 2003-12-11 devnull static
671 b3994ec5 2003-12-11 devnull Xfid*
672 b3994ec5 2003-12-11 devnull fsysremove(Xfid *x, Fid *f)
673 b3994ec5 2003-12-11 devnull {
674 b3994ec5 2003-12-11 devnull 	Fcall t;
675 b3994ec5 2003-12-11 devnull 
676 b3994ec5 2003-12-11 devnull 	USED(f);
677 b3994ec5 2003-12-11 devnull 	return respond(x, &t, Eperm);
678 b3994ec5 2003-12-11 devnull }
679 b3994ec5 2003-12-11 devnull 
680 b3994ec5 2003-12-11 devnull static
681 b3994ec5 2003-12-11 devnull Xfid*
682 b3994ec5 2003-12-11 devnull fsysstat(Xfid *x, Fid *f)
683 b3994ec5 2003-12-11 devnull {
684 b3994ec5 2003-12-11 devnull 	Fcall t;
685 b3994ec5 2003-12-11 devnull 
686 b3994ec5 2003-12-11 devnull 	t.stat = emalloc(messagesize-IOHDRSZ);
687 b3994ec5 2003-12-11 devnull 	t.nstat = dostat(WIN(x->f->qid), f->dir, t.stat, messagesize-IOHDRSZ, getclock());
688 b3994ec5 2003-12-11 devnull 	x = respond(x, &t, nil);
689 b3994ec5 2003-12-11 devnull 	free(t.stat);
690 b3994ec5 2003-12-11 devnull 	return x;
691 b3994ec5 2003-12-11 devnull }
692 b3994ec5 2003-12-11 devnull 
693 b3994ec5 2003-12-11 devnull static
694 b3994ec5 2003-12-11 devnull Xfid*
695 b3994ec5 2003-12-11 devnull fsyswstat(Xfid *x, Fid *f)
696 b3994ec5 2003-12-11 devnull {
697 b3994ec5 2003-12-11 devnull 	Fcall t;
698 b3994ec5 2003-12-11 devnull 
699 b3994ec5 2003-12-11 devnull 	USED(f);
700 b3994ec5 2003-12-11 devnull 	return respond(x, &t, Eperm);
701 b3994ec5 2003-12-11 devnull }
702 b3994ec5 2003-12-11 devnull 
703 b3994ec5 2003-12-11 devnull Fid*
704 b3994ec5 2003-12-11 devnull newfid(int fid)
705 b3994ec5 2003-12-11 devnull {
706 b3994ec5 2003-12-11 devnull 	Fid *f, *ff, **fh;
707 b3994ec5 2003-12-11 devnull 
708 b3994ec5 2003-12-11 devnull 	ff = nil;
709 b3994ec5 2003-12-11 devnull 	fh = &fids[fid&(Nhash-1)];
710 b3994ec5 2003-12-11 devnull 	for(f=*fh; f; f=f->next)
711 b3994ec5 2003-12-11 devnull 		if(f->fid == fid)
712 b3994ec5 2003-12-11 devnull 			return f;
713 b3994ec5 2003-12-11 devnull 		else if(ff==nil && f->busy==FALSE)
714 b3994ec5 2003-12-11 devnull 			ff = f;
715 b3994ec5 2003-12-11 devnull 	if(ff){
716 b3994ec5 2003-12-11 devnull 		ff->fid = fid;
717 b3994ec5 2003-12-11 devnull 		return ff;
718 b3994ec5 2003-12-11 devnull 	}
719 b3994ec5 2003-12-11 devnull 	f = emalloc(sizeof *f);
720 b3994ec5 2003-12-11 devnull 	f->fid = fid;
721 b3994ec5 2003-12-11 devnull 	f->next = *fh;
722 b3994ec5 2003-12-11 devnull 	*fh = f;
723 b3994ec5 2003-12-11 devnull 	return f;
724 b3994ec5 2003-12-11 devnull }
725 b3994ec5 2003-12-11 devnull 
726 b3994ec5 2003-12-11 devnull uint
727 b3994ec5 2003-12-11 devnull getclock(void)
728 b3994ec5 2003-12-11 devnull {
729 b3994ec5 2003-12-11 devnull 	return time(0);
730 b3994ec5 2003-12-11 devnull }
731 b3994ec5 2003-12-11 devnull 
732 b3994ec5 2003-12-11 devnull int
733 b3994ec5 2003-12-11 devnull dostat(int id, Dirtab *dir, uchar *buf, int nbuf, uint clock)
734 b3994ec5 2003-12-11 devnull {
735 b3994ec5 2003-12-11 devnull 	Dir d;
736 b3994ec5 2003-12-11 devnull 
737 b3994ec5 2003-12-11 devnull 	d.qid.path = QID(id, dir->qid);
738 b3994ec5 2003-12-11 devnull 	d.qid.vers = 0;
739 b3994ec5 2003-12-11 devnull 	d.qid.type = dir->type;
740 b3994ec5 2003-12-11 devnull 	d.mode = dir->perm;
741 b3994ec5 2003-12-11 devnull 	d.length = 0;	/* would be nice to do better */
742 b3994ec5 2003-12-11 devnull 	d.name = dir->name;
743 b3994ec5 2003-12-11 devnull 	d.uid = user;
744 b3994ec5 2003-12-11 devnull 	d.gid = user;
745 b3994ec5 2003-12-11 devnull 	d.muid = user;
746 b3994ec5 2003-12-11 devnull 	d.atime = clock;
747 b3994ec5 2003-12-11 devnull 	d.mtime = clock;
748 b3994ec5 2003-12-11 devnull 	return convD2M(&d, buf, nbuf);
749 b3994ec5 2003-12-11 devnull }