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150c7bef96
wmii/cmd/wm/fs.c
Anselm R. Garbe 150c7bef96 added id-based qid-routing to wm/fs.c
2006-02-03 19:11:22 +02:00

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/*
* (C)opyright MMIV-MMVI Anselm R. Garbe <garbeam at gmail dot com>
* See LICENSE file for license details.
*/
#include <assert.h>
#include <stdlib.h>
#include <stdio.h>
#include <string.h>
#include <sys/stat.h>
#include <sys/wait.h>
#include <sys/types.h>
#include <time.h>
#include <unistd.h>
#include <X11/Xatom.h>
#include <X11/cursorfont.h>
#include <X11/Xproto.h>
#include <X11/Xutil.h>
#include <sys/socket.h>
#include "wm.h"
/*
* filesystem specification
* / Droot
* /default/ Ddefault
* /default/font Ffont <xlib font name>
* /default/selcolor Fselcolor <#RRGGBB> <#RRGGBB> <#RRGGBB>
* /default/normcolor Fnormcolor <#RRGGBB> <#RRGGBB> <#RRGGBB>
* /default/border Fborder 0..n
* /default/bar Fbar 0, 1
* /default/snap Fsnap 0..n
* /default/inc Finc 0..n
* /event Fevent
* /ctl Fctl command interface (root)
* /new/ Dpage returns new page
* /sel/ Dpage sel page
* /1/ Dpage page
* /1/ctl Fctl command interface (page)
* /1/sel/ Darea
* /1/new/ Darea
* /1/float/ Darea floating clients in area 0
* /1/float/ctl Fctl command interface (area)
* /1/float/sel/ Dclient
* /1/float/1/ Dclient
* /1/float/1/border Fborder 0..n
* /1/float/1/bar Fbar 0, 1
* /1/float/1/name Fname name of client
* /1/float/1/geom Fgeom geometry of client
* /1/float/1/ctl Fctl command interface (client)
* /1/1/ Darea
* /1/1/ctl Fctl command interface (area)
* /1/1/1/sel/ Dclient
* /1/1/1/1/ Dclient
* /1/1/1/border Fborder 0..n
* /1/1/1/bar Fbar 0, 1
* /1/1/1/name Fname name of client
* /1/1/1/geom Fgeom geometry of client
* /1/1/1/ctl Fctl command interface (client)
*/
static char E9pversion[] = "9P version not supported";
static char Enoperm[] = "permission denied";
static char Enofid[] = "fid not assigned";
static char Enofile[] = "file not found";
static char Enomode[] = "mode not supported";
static char Enofunc[] = "function not supported";
static char Enocommand[] = "command not supported";
const char *err;
/* IXP stuff */
unsigned long long
mkqpath(unsigned char type, unsigned short pgid, unsigned short aid, unsigned short cid)
{
return ((unsigned long long) type << 48) | ((unsigned long long) pgid << 32)
| ((unsigned long long) aid << 16) | (unsigned long long) cid;
}
static unsigned char
qpath_type(unsigned long long path)
{
return (path >> 48) & 0xff;
}
static unsigned short
qpath_pgid(unsigned long long path)
{
return (path >> 32) & 0xffff;
}
static unsigned short
qpath_aid(unsigned long long path)
{
return (path >> 16) & 0xffff;
}
static unsigned short
qpath_cid(unsigned long long path)
{
return path & 0xffff;
}
static char *
qid_to_name(Qid *qid)
{
unsigned char typ = qpath_type(qid->path);
unsigned short pgid = qpath_pgid(qid->path);
unsigned short aid = qpath_aid(qid->path);
unsigned short cid = qpath_cid(qid->path);
int pg = 0, area = 0, cl = 0;
static char buf[32];
if(pgid && ((pg = index_of_page_id(pgid)) == -1))
return nil;
if(aid && ((area = index_of_area_id(page[pg], aid)) == -1))
return nil;
if(cid && ((cl = index_of_client_id(page[pg]->area[area], cid)) == -1))
return nil;
switch(typ) {
case Droot: return "/"; break;
case Ddefault: return "default"; break;
case Dpage:
if(pg == sel)
return "sel";
if(pg == npage)
return "new";
snprintf(buf, sizeof(buf), "%u", pg);
return buf;
break;
case Darea:
if(!area) {
if(page[pg]->sel)
return "float";
else
return "sel";
}
if(page[pg]->narea == area)
return "new";
if(page[pg]->sel == area)
return "sel";
snprintf(buf, sizeof(buf), "%u", area);
return buf;
break;
case Dclient:
if(page[pg]->area[area]->sel == cl)
return "sel";
snprintf(buf, sizeof(buf), "%u", cl);
return buf;
break;
case Fctl: return "ctl"; break;
case Ffont: return "font"; break;
case Fselcolor: return "selcolor"; break;
case Fnormcolor: return "normcolor"; break;
case Fborder: return "border"; break;
case Fsnap: return "border"; break;
case Fbar: return "bar"; break;
case Finc: return "inc"; break;
case Fgeom: return "geometry"; break;
case Fname: return "name"; break;
case Fevent: return "event"; break;
default: return nil; break;
}
}
static int
name_to_type(char *name, unsigned char dtyp)
{
unsigned int i;
if(!name || !name[0] || !strncmp(name, "/", 2) || !strncmp(name, "..", 3))
return Droot;
if(!strncmp(name, "new", 4)) {
if(dtyp == Droot)
return Dpage;
else if(dtyp == Dpage)
return Darea;
}
if(!strncmp(name, "default", 8))
return Ddefault;
if(!strncmp(name, "ctl", 4))
return Fctl;
if(!strncmp(name, "font", 5))
return Ffont;
if(!strncmp(name, "event", 6))
return Fevent;
if(!strncmp(name, "selcolor", 9))
return Fselcolor;
if(!strncmp(name, "normcolor", 10))
return Fnormcolor;
if(!strncmp(name, "snap", 5))
return Fsnap;
if(!strncmp(name, "name", 5))
return Fname;
if(!strncmp(name, "border", 7))
return Fborder;
if(!strncmp(name, "bar", 4))
return Fbar;
if(!strncmp(name, "inc", 4))
return Finc;
if(!strncmp(name, "geometry", 9))
return Fgeom;
if(!strncmp(name, "sel", 4))
goto dyndir;
i = (unsigned short) cext_strtonum(name, 0, 0xffff, &err);
if(err)
return -1;
dyndir:
switch(dtyp) {
case Droot: return Dpage; break;
case Dpage: return Darea; break;
case Darea: return Dclient; break;
}
return -1;
}
static int
mkqid(Qid *dir, char *wname, Qid *new)
{
unsigned char dtyp = qpath_type(dir->path);
unsigned short dpgid = qpath_pgid(dir->path);
unsigned short daid = qpath_aid(dir->path);
unsigned short dcid = qpath_cid(dir->path);
int dpg = 0, darea = 0, dcl = 0;
unsigned short i;
int type = name_to_type(wname, dtyp);
if(dpgid && ((dpg = index_of_page_id(dpgid)) == -1))
return -1;
if(daid && ((darea = index_of_area_id(page[dpg], daid)) == -1))
return -1;
if(dcid && ((dcl = index_of_client_id(page[dpg]->area[darea], dcid)) == -1))
return -1;
if((dir->type != IXP_QTDIR) || (type == -1))
return -1;
new->dtype = dtyp;
new->version = 0;
switch(type) {
case Droot:
*new = root_qid;
break;
case Ddefault:
new->type = IXP_QTDIR;
new->path = mkqpath(Ddefault, 0, 0, 0);
break;
case Dpage:
new->type = IXP_QTDIR;
if(!strncmp(wname, "new", 4))
new->path = mkqpath(Dpage, NEW_OBJ, 0, 0);
else if(!strncmp(wname, "sel", 4)) {
if(!npage)
return -1;
new->path = mkqpath(Dpage, page[sel]->id, 0, 0);
}
else {
i = cext_strtonum(wname, 0, 0xffff, &err);
if(err || (i >= npage))
return -1;
new->path = mkqpath(Dpage, page[i]->id, 0, 0);
}
break;
case Darea:
fprintf(stderr, "mkqid(): %s\n", "Darea");
if(!npage)
return -1;
new->type = IXP_QTDIR;
if(!strncmp(wname, "new", 4))
new->path = mkqpath(Darea, dpgid, NEW_OBJ, 0);
else if(!strncmp(wname, "sel", 4)) {
Page *p = page[dpg];
new->path = mkqpath(Darea, dpgid, p->area[p->sel]->id, 0);
}
else {
i = cext_strtonum(wname, 0, 0xffff, &err);
if(err || (i >= page[dpg]->narea))
return -1;
new->path = mkqpath(Darea, dpgid, page[dpg]->area[i]->id, 0);
}
break;
case Dclient:
if(!npage)
return -1;
new->type = IXP_QTDIR;
if(!strncmp(wname, "sel", 4)) {
Area *a = page[dpg]->area[darea];
new->path = mkqpath(Dclient, dpgid, daid, a->client[a->sel]->id);
}
else {
Area *a = page[dpg]->area[darea];
i = cext_strtonum(wname, 0, 0xffff, &err);
if(err || (i >= page[dpg]->area[darea]->nclient))
return -1;
new->path = mkqpath(Dclient, dpgid, daid, a->client[i]->id);
}
break;
default:
new->type = IXP_QTFILE;
new->path = mkqpath(type, dpgid, daid, dcid);
break;
}
return 0;
}
static char *
xversion(IXPConn *c, Fcall *fcall)
{
if(strncmp(fcall->version, IXP_VERSION, strlen(IXP_VERSION)))
return E9pversion;
else if(fcall->maxmsg > IXP_MAX_MSG)
fcall->maxmsg = IXP_MAX_MSG;
fcall->id = RVERSION;
ixp_server_respond_fcall(c, fcall);
return nil;
}
static char *
xattach(IXPConn *c, Fcall *fcall)
{
IXPMap *new = cext_emallocz(sizeof(IXPMap));
new->qid = root_qid;
new->fid = fcall->fid;
c->map = (IXPMap **)cext_array_attach((void **)c->map, new,
sizeof(IXPMap *), &c->mapsz);
fcall->id = RATTACH;
fcall->qid = root_qid;
ixp_server_respond_fcall(c, fcall);
return nil;
}
static char *
xwalk(IXPConn *c, Fcall *fcall)
{
unsigned short nwqid = 0;
Qid dir = root_qid;
IXPMap *m;
if(!(m = ixp_server_fid2map(c, fcall->fid)))
return Enofid;
if(fcall->fid != fcall->newfid && (ixp_server_fid2map(c, fcall->newfid)))
return Enofid;
if(fcall->nwname) {
dir = m->qid;
for(nwqid = 0; (nwqid < fcall->nwname)
&& !mkqid(&dir, fcall->wname[nwqid], &fcall->wqid[nwqid]); nwqid++)
{
fprintf(stderr, "dir.dtype=%d\n", dir.dtype);
dir = fcall->wqid[nwqid];
fprintf(stderr, "walk: qid_to_name()=%s qpath_type(dir.path)=%d dir.dtype=%d\n",
qid_to_name(&dir), qpath_type(dir.path), dir.dtype);
}
if(!nwqid)
return Enofile;
}
/* a fid will only be valid, if the walk was complete */
if(nwqid == fcall->nwname) {
if(fcall->fid != fcall->newfid) {
m = cext_emallocz(sizeof(IXPMap));
c->map = (IXPMap **)cext_array_attach((void **)c->map, m,
sizeof(IXPMap *), &c->mapsz);
}
m->qid = dir;
m->fid = fcall->newfid;
}
fcall->id = RWALK;
fcall->nwqid = nwqid;
ixp_server_respond_fcall(c, fcall);
return nil;
}
static char *
xopen(IXPConn *c, Fcall *fcall)
{
IXPMap *m = ixp_server_fid2map(c, fcall->fid);
if(!m)
return Enofid;
if(!(fcall->mode | IXP_OREAD) && !(fcall->mode | IXP_OWRITE))
return Enomode;
fcall->id = ROPEN;
fcall->qid = m->qid;
fcall->iounit = 2048;
ixp_server_respond_fcall(c, fcall);
return nil;
}
static unsigned int
mkstat(Stat *stat, Qid *dir, char *name, unsigned long long length, unsigned int mode)
{
stat->mode = mode;
stat->atime = stat->mtime = time(0);
cext_strlcpy(stat->uid, getenv("USER"), sizeof(stat->uid));
cext_strlcpy(stat->gid, getenv("USER"), sizeof(stat->gid));
cext_strlcpy(stat->muid, getenv("USER"), sizeof(stat->muid));
cext_strlcpy(stat->name, name, sizeof(stat->name));
stat->length = length;
mkqid(dir, name, &stat->qid);
return ixp_sizeof_stat(stat);
}
static unsigned int
type_to_stat(Stat *stat, char *name, Qid *dir)
{
unsigned char dtyp = qpath_type(dir->path);
unsigned short dpgid = qpath_pgid(dir->path);
unsigned short daid = qpath_aid(dir->path);
unsigned short dcid = qpath_cid(dir->path);
unsigned int idx;
int dpg = 0, darea = 0, dcl = 0;
int type = name_to_type(name, dtyp);
char buf[32];
Client *c;
if(dpgid && ((dpg = index_of_page_id(dpgid)) == -1))
return 0;
if(daid && ((darea = index_of_area_id(page[dpg], daid)) == -1))
return 0;
if(dcid && ((dcl = index_of_client_id(page[dpg]->area[darea], dcid)) == -1))
return 0;
switch (type) {
case Dclient:
case Darea:
case Dpage:
case Ddefault:
case Droot:
return mkstat(stat, dir, name, 0, DMDIR | DMREAD | DMEXEC);
break;
case Fctl:
return mkstat(stat, dir, name, 0, DMWRITE);
break;
case Fevent:
return mkstat(stat, dir, name, 0, DMREAD);
break;
case Ffont:
return mkstat(stat, dir, name, strlen(def.font), DMREAD | DMWRITE);
break;
case Fselcolor:
return mkstat(stat, dir, name, 24, DMREAD | DMWRITE);
break;
case Fnormcolor:
return mkstat(stat, dir, name, 24, DMREAD | DMWRITE);
break;
case Fborder:
if(dtyp == Ddefault)
snprintf(buf, sizeof(buf), "%d", def.border);
else {
idx = cext_strtonum(name, 0, 0xffff, &err);
if(err)
return 0;
snprintf(buf, sizeof(buf), "%d", page[dpg]->area[darea]->client[idx]->frame.border);
}
return mkstat(stat, dir, name, strlen(buf), DMREAD | DMWRITE);
break;
case Fbar:
if(dtyp == Ddefault)
snprintf(buf, sizeof(buf), "%d", def.bar);
else {
idx = cext_strtonum(name, 0, 0xffff, &err);
if(err)
return 0;
snprintf(buf, sizeof(buf), "%d", page[dpg]->area[darea]->client[idx]->frame.bar);
}
return mkstat(stat, dir, name, strlen(buf), DMREAD | DMWRITE);
break;
case Finc:
snprintf(buf, sizeof(buf), "%d", def.inc);
return mkstat(stat, dir, name, strlen(buf), DMREAD | DMWRITE);
break;
case Fgeom:
idx = cext_strtonum(name, 0, 0xffff, &err);
if(err)
return 0;
c = page[dpg]->area[darea]->client[idx];
snprintf(buf, sizeof(buf), "%d %d %d %d", c->frame.rect.x, c->frame.rect.y,
c->frame.rect.width, c->frame.rect.height);
return mkstat(stat, dir, name, strlen(buf), DMREAD | DMWRITE);
break;
case Fsnap:
snprintf(buf, sizeof(buf), "%d", def.snap);
return mkstat(stat, dir, name, strlen(buf), DMREAD | DMWRITE);
break;
case Fname:
return mkstat(stat, dir, name, strlen(page[dpg]->area[darea]->client[idx]->name), DMREAD);
break;
}
return 0;
}
static char *
xread(IXPConn *c, Fcall *fcall)
{
Stat stat;
IXPMap *m = ixp_server_fid2map(c, fcall->fid);
unsigned char *p = fcall->data;
unsigned short pgid, aid, cid;
unsigned int i, len;
char buf[32];
Client *client;
int pg, area, cl;
if(!m)
return Enofid;
pgid = qpath_pgid(m->qid.path);
aid = qpath_aid(m->qid.path);
cid = qpath_cid(m->qid.path);
if(pgid && ((pg = index_of_page_id(pgid)) == -1))
return Enofile;
if(aid && ((area = index_of_area_id(page[pg], aid)) == -1))
return Enofile;
if(cid && ((cl = index_of_client_id(page[pg]->area[area], cid)) == -1))
return Enofile;
fcall->count = 0;
if(fcall->offset) {
switch (qpath_type(m->qid.path)) {
case Droot:
/* jump to offset */
len = type_to_stat(&stat, "ctl", &m->qid);
len += type_to_stat(&stat, "event", &m->qid);
len += type_to_stat(&stat, "default", &m->qid);
len += type_to_stat(&stat, "new", &m->qid);
len += type_to_stat(&stat, "sel", &m->qid);
for(i = 0; i < npage; i++) {
if(i == sel)
continue;
snprintf(buf, sizeof(buf), "%u", i);
len += type_to_stat(&stat, buf, &m->qid);
if(len <= fcall->offset)
continue;
break;
}
/* offset found, proceeding */
for(; i < npage; i++) {
if(i == sel)
continue;
snprintf(buf, sizeof(buf), "%u", i);
len = type_to_stat(&stat, buf, &m->qid);
if(fcall->count + len > fcall->iounit)
break;
fcall->count += len;
p = ixp_enc_stat(p, &stat);
}
break;
case Dpage:
/* jump to offset */
len = type_to_stat(&stat, "ctl", &m->qid);
len += type_to_stat(&stat, "new", &m->qid);
len += type_to_stat(&stat, "sel", &m->qid);
for(i = 0; i < page[pg]->narea; i++) {
if(i == page[pg]->sel)
continue;
snprintf(buf, sizeof(buf), "%u", i);
len += type_to_stat(&stat, buf, &m->qid);
if(len <= fcall->offset)
continue;
break;
}
/* offset found, proceeding */
for(; i < page[pg]->narea; i++) {
if(i == page[pg]->sel)
continue;
snprintf(buf, sizeof(buf), "%u", i);
len = type_to_stat(&stat, buf, &m->qid);
if(fcall->count + len > fcall->iounit)
break;
fcall->count += len;
p = ixp_enc_stat(p, &stat);
}
break;
case Darea:
/* jump to offset */
len = type_to_stat(&stat, "ctl", &m->qid);
len += type_to_stat(&stat, "sel", &m->qid);
for(i = 0; i < page[pg]->area[area]->nclient; i++) {
if(i == page[pg]->area[area]->sel)
continue;
snprintf(buf, sizeof(buf), "%u", i);
len += type_to_stat(&stat, buf, &m->qid);
if(len <= fcall->offset)
continue;
break;
}
/* offset found, proceeding */
for(; i < page[pg]->area[area]->nclient; i++) {
if(i == page[pg]->area[area]->sel)
continue;
snprintf(buf, sizeof(buf), "%u", i);
len = type_to_stat(&stat, buf, &m->qid);
if(fcall->count + len > fcall->iounit)
break;
fcall->count += len;
p = ixp_enc_stat(p, &stat);
}
break;
case Fevent:
ixp_server_enqueue_fcall(c, fcall);
return nil;
break;
default:
break;
}
}
else {
switch (qpath_type(m->qid.path)) {
case Droot:
fprintf(stderr, "%s", "Droot dir creation\n");
fcall->count = type_to_stat(&stat, "ctl", &m->qid);
p = ixp_enc_stat(p, &stat);
fcall->count += type_to_stat(&stat, "event", &m->qid);
p = ixp_enc_stat(p, &stat);
fcall->count += type_to_stat(&stat, "default", &m->qid);
p = ixp_enc_stat(p, &stat);
fcall->count += type_to_stat(&stat, "new", &m->qid);
p = ixp_enc_stat(p, &stat);
fcall->count += type_to_stat(&stat, "sel", &m->qid);
p = ixp_enc_stat(p, &stat);
for(i = 0; i < npage; i++) {
if(i == npage)
continue;
snprintf(buf, sizeof(buf), "%u", i);
len = type_to_stat(&stat, buf, &m->qid);
if(fcall->count + len > fcall->iounit)
break;
fcall->count += len;
p = ixp_enc_stat(p, &stat);
}
break;
case Ddefault:
fcall->count = type_to_stat(&stat, "font", &m->qid);
p = ixp_enc_stat(p, &stat);
fcall->count += type_to_stat(&stat, "selcolor", &m->qid);
p = ixp_enc_stat(p, &stat);
fcall->count += type_to_stat(&stat, "normcolor", &m->qid);
p = ixp_enc_stat(p, &stat);
fcall->count += type_to_stat(&stat, "border", &m->qid);
p = ixp_enc_stat(p, &stat);
fcall->count += type_to_stat(&stat, "bar", &m->qid);
p = ixp_enc_stat(p, &stat);
fcall->count += type_to_stat(&stat, "inc", &m->qid);
p = ixp_enc_stat(p, &stat);
fcall->count += type_to_stat(&stat, "snap", &m->qid);
p = ixp_enc_stat(p, &stat);
break;
case Dpage:
if(pg == npage)
alloc_page();
fcall->count = type_to_stat(&stat, "ctl", &m->qid);
p = ixp_enc_stat(p, &stat);
fcall->count += type_to_stat(&stat, "new", &m->qid);
p = ixp_enc_stat(p, &stat);
fcall->count += type_to_stat(&stat, "sel", &m->qid);
p = ixp_enc_stat(p, &stat);
for(i = 0; i < page[pg]->narea; i++) {
if(i == page[pg]->area[area]->sel)
continue;
snprintf(buf, sizeof(buf), "%u", i);
len = type_to_stat(&stat, buf, &m->qid);
if(fcall->count + len > fcall->iounit)
break;
fcall->count += len;
p = ixp_enc_stat(p, &stat);
}
break;
case Darea:
fcall->count = type_to_stat(&stat, "ctl", &m->qid);
p = ixp_enc_stat(p, &stat);
fcall->count += type_to_stat(&stat, "sel", &m->qid);
p = ixp_enc_stat(p, &stat);
for(i = 0; i < page[pg]->area[area]->nclient; i++) {
if(i == page[pg]->area[area]->sel)
continue;
snprintf(buf, sizeof(buf), "%u", i);
len = type_to_stat(&stat, buf, &m->qid);
if(fcall->count + len > fcall->iounit)
break;
fcall->count += len;
p = ixp_enc_stat(p, &stat);
}
break;
case Dclient:
fcall->count = type_to_stat(&stat, "border", &m->qid);
p = ixp_enc_stat(p, &stat);
fcall->count += type_to_stat(&stat, "bar", &m->qid);
p = ixp_enc_stat(p, &stat);
fcall->count += type_to_stat(&stat, "inc", &m->qid);
p = ixp_enc_stat(p, &stat);
fcall->count += type_to_stat(&stat, "name", &m->qid);
p = ixp_enc_stat(p, &stat);
fcall->count += type_to_stat(&stat, "geometry", &m->qid);
p = ixp_enc_stat(p, &stat);
fcall->count += type_to_stat(&stat, "ctl", &m->qid);
p = ixp_enc_stat(p, &stat);
break;
case Fctl:
return Enoperm;
break;
case Ffont:
if((fcall->count = strlen(def.font)))
memcpy(p, def.font, fcall->count);
break;
case Fevent:
ixp_server_enqueue_fcall(c, fcall);
return nil;
break;
case Fselcolor:
if((fcall->count = strlen(def.selcolor)))
memcpy(p, def.selcolor, fcall->count);
break;
case Fnormcolor:
if((fcall->count = strlen(def.normcolor)))
memcpy(p, def.normcolor, fcall->count);
break;
case Fborder:
fprintf(stderr, "Fborder: qpath_type(m->qid.path)=%d, m->qid.dtype=%d\n",
qpath_type(m->qid.path), m->qid.dtype);
if(m->qid.dtype == Ddefault)
snprintf(buf, sizeof(buf), "%u", def.border);
else
snprintf(buf, sizeof(buf), "%u", page[pg]->area[area]->client[cl]->frame.border);
fcall->count = strlen(buf);
memcpy(p, buf, fcall->count);
break;
case Fbar:
if(m->qid.dtype == Ddefault)
snprintf(buf, sizeof(buf), "%u", def.bar);
else
snprintf(buf, sizeof(buf), "%u", page[pg]->area[area]->client[cl]->frame.bar);
fcall->count = strlen(buf);
memcpy(p, buf, fcall->count);
break;
case Finc:
snprintf(buf, sizeof(buf), "%u", def.inc);
fcall->count = strlen(buf);
memcpy(p, buf, fcall->count);
break;
case Fgeom:
client = page[pg]->area[area]->client[cl];
snprintf(buf, sizeof(buf), "%d %d %d %d", client->frame.rect.x, client->frame.rect.y,
client->frame.rect.width, client->frame.rect.height);
fcall->count = strlen(buf);
memcpy(p, buf, fcall->count);
break;
case Fsnap:
snprintf(buf, sizeof(buf), "%u", def.snap);
fcall->count = strlen(buf);
memcpy(p, buf, fcall->count);
break;
case Fname:
if((fcall->count = strlen(page[pg]->area[area]->client[cl]->name)))
memcpy(p, page[pg]->area[area]->client[cl]->name, fcall->count);
break;
default:
return "invalid read";
break;
}
}
fcall->id = RREAD;
ixp_server_respond_fcall(c, fcall);
return nil;
}
static char *
xstat(IXPConn *c, Fcall *fcall)
{
IXPMap *m = ixp_server_fid2map(c, fcall->fid);
char *name;
if(!m)
return Enofid;
name = qid_to_name(&m->qid);
if(!type_to_stat(&fcall->stat, name, &m->qid))
return Enofile;
fcall->id = RSTAT;
ixp_server_respond_fcall(c, fcall);
return nil;
}
static char *
xwrite(IXPConn *c, Fcall *fcall)
{
char buf[256];
IXPMap *m = ixp_server_fid2map(c, fcall->fid);
unsigned short pgid, aid, cid;
unsigned short i;
int pg, area, cl;
if(!m)
return Enofid;
pgid = qpath_pgid(m->qid.path);
aid = qpath_aid(m->qid.path);
cid = qpath_cid(m->qid.path);
if(pgid && ((pg = index_of_page_id(pgid)) == -1))
return Enofile;
if(aid && ((area = index_of_area_id(page[pg], aid)) == -1))
return Enofile;
if(cid && ((cl = index_of_client_id(page[pg]->area[area], cid)) == -1))
return Enofile;
switch (qpath_type(m->qid.path)) {
case Fctl:
switch(m->qid.dtype) {
case Droot:
/* TODO: /ctl commands */
break;
case Dpage:
/* /TODO: /n/ctl commands */
break;
case Darea:
/* /TODO: /n/{float,n}/ctl commands */
break;
case Dclient:
/* /TODO: /n/{float,n}/n/ctl commands */
break;
default:
return Enocommand;
}
break;
case Ffont:
if(def.font)
free(def.font);
def.font = cext_emallocz(fcall->count + 1);
memcpy(def.font, fcall->data, fcall->count);
XFreeFont(dpy, xfont);
xfont = blitz_getfont(dpy, def.font);
/* TODO: update geometry */
break;
case Fselcolor:
if((fcall->count != 24)
|| (fcall->data[0] != '#') || (fcall->data[8] != '#')
|| (fcall->data[16] != '#')
)
return "wrong color format";
memcpy(def.selcolor, fcall->data, fcall->count);
def.selcolor[fcall->count] = 0;
blitz_loadcolor(dpy, screen, def.selcolor, &def.sel);
XSetForeground(dpy, gc_xor, def.sel.bg);
/* TODO: update color */
break;
case Fnormcolor:
if((fcall->count != 24)
|| (fcall->data[0] != '#') || (fcall->data[8] != '#')
|| (fcall->data[16] != '#')
)
return "wrong color format";
memcpy(def.normcolor, fcall->data, fcall->count);
def.normcolor[fcall->count] = 0;
blitz_loadcolor(dpy, screen, def.normcolor, &def.norm);
/* TODO: update color */
break;
case Fsnap:
if(fcall->count > sizeof(buf))
return "snap value out of range 0..0xffff";
memcpy(buf, fcall->data, fcall->count);
buf[fcall->count] = 0;
i = cext_strtonum(buf, 0, 0xffff, &err);
if(err)
return "snap value out of range 0..0xffff";
def.snap = i;
break;
case Fborder:
if(fcall->count > sizeof(buf))
return "border value out of range 0..0xffff";
memcpy(buf, fcall->data, fcall->count);
buf[fcall->count] = 0;
i = cext_strtonum(buf, 0, 0xffff, &err);
if(err)
return "border value out of range 0..0xffff";
if(m->qid.dtype == Ddefault)
def.border = i;
else {
page[pg]->area[area]->client[cl]->frame.border = i;
/* TODO: resize client */
}
break;
case Fbar:
if(fcall->count > sizeof(buf))
return "bar value out of range 0, 1";
memcpy(buf, fcall->data, fcall->count);
buf[fcall->count] = 0;
i = cext_strtonum(buf, 0, 1, &err);
if(err)
return "bar value out of range 0, 1";
if(m->qid.dtype == Ddefault)
def.border = i;
else {
page[pg]->area[area]->client[cl]->frame.border = i;
/* TODO: resize client */
}
break;
case Finc:
if(fcall->count > sizeof(buf))
return "increment value out of range 0, 1";
memcpy(buf, fcall->data, fcall->count);
buf[fcall->count] = 0;
i = cext_strtonum(buf, 0, 1, &err);
if(err)
return "increment value out of range 0, 1";
def.inc = i;
/* TODO: resize all clients */
break;
case Fgeom:
if(fcall->count > sizeof(buf))
return "geometry values out of range";
memcpy(buf, fcall->data, fcall->count);
buf[fcall->count] = 0;
blitz_strtorect(&rect, &page[pg]->area[area]->client[cl]->frame.rect, buf);
/* TODO: resize client */
break;
default:
return "invalid write";
break;
}
fcall->id = RWRITE;
ixp_server_respond_fcall(c, fcall);
return nil;
}
static char *
xclunk(IXPConn *c, Fcall *fcall)
{
IXPMap *m = ixp_server_fid2map(c, fcall->fid);
if(!m)
return Enofid;
cext_array_detach((void **)c->map, m, &c->mapsz);
free(m);
fcall->id = RCLUNK;
ixp_server_respond_fcall(c, fcall);
return nil;
}
static void
do_fcall(IXPConn *c)
{
static Fcall fcall;
unsigned int msize;
char *errstr;
if((msize = ixp_server_receive_fcall(c, &fcall))) {
switch(fcall.id) {
case TVERSION: errstr = xversion(c, &fcall); break;
case TATTACH: errstr = xattach(c, &fcall); break;
case TWALK: errstr = xwalk(c, &fcall); break;
case TOPEN: errstr = xopen(c, &fcall); break;
case TREAD: errstr = xread(c, &fcall); break;
case TWRITE: errstr = xwrite(c, &fcall); break;
case TCLUNK: errstr = xclunk(c, &fcall); break;
case TSTAT: errstr = xstat(c, &fcall); break;
default: errstr = Enofunc; break;
}
if(errstr)
ixp_server_respond_error(c, &fcall, errstr);
}
}
void
do_pend_fcall(char *event)
{
size_t i;
Fcall *fcall;
for(i = 0; (i < srv.connsz) && srv.conn[i]; i++) {
IXPConn *c = srv.conn[i];
/* all pending TREADs are on /event, so no qid checking necessary */
while((fcall = ixp_server_dequeue_fcall(c, TREAD))) {
IXPMap *m = ixp_server_fid2map(c, fcall->fid);
unsigned char *p = fcall->data;
if(!m) {
if(ixp_server_respond_error(c, fcall, Enofid))
break;
}
else if(qpath_type(m->qid.path) == Fevent) {
fcall->count = strlen(event);
memcpy(p, event, fcall->count);
fcall->id = RREAD;
if(ixp_server_respond_fcall(c, fcall))
break;
}
free(fcall);
}
}
}
void
new_ixp_conn(IXPConn *c)
{
int fd = ixp_accept_sock(c->fd);
if(fd >= 0)
ixp_server_open_conn(c->srv, fd, do_fcall, ixp_server_close_conn);
}
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