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wmii/cmd/wm/fs.c

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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/Xproto.h>
#include <X11/Xutil.h>
#include <sys/socket.h>
#include "wm.h"
static char E9pversion[] = "9P version not supported";
static char Enoperm[] = "permission denied";
static char Enofid[] = "fid not found";
static char Enofile[] = "file not found";
static char Enomode[] = "mode not supported";
static char Enofunc[] = "function not supported";
static char Enocommand[] = "command not supported";
#define WMII_IOUNIT 2048
/*
* filesystem specification
* / Droot
* /def/ Ddef
* /def/border Fborder 0..n
* /def/bar Fbar 0, 1
* /def/snap Fsnap 0..n
* /def/inc Finc 0..n
* /keys/ Dkeys
* /keys/foo Fkey
* /bar/ Dbar
* /bar/expand Fexpand id of expandable label
* /bar/new/ Dlabel
* /bar/1/ Dlabel
* /bar/1/data Fdata <arbitrary data which gets displayed>
* /bar/1/color Fcolor <#RRGGBB> <#RRGGBB> <#RRGGBB>
* /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)
*/
Qid root_qid;
const char *err;
/* IXP stuff */
/**
* Qid->path is calculated related to the index of the associated structure.
* i1 is associated to page, key or label
* i2 is associated to area
* i3 is associated to client
* ie /sel/sel/ctl is i1id = sel page id, i2id = sel area id , i3id = 0 (no id)
*/
unsigned long long
mkqpath(unsigned char type, unsigned short i1id, unsigned short i2id, unsigned short i3id)
{
return ((unsigned long long) type << 48) | ((unsigned long long) i1id << 32)
| ((unsigned long long) i2id << 16) | (unsigned long long) i3id;
}
static unsigned char
qpath_type(unsigned long long path)
{
return (path >> 48) & 0xff;
}
static unsigned short
qpath_i1id(unsigned long long path)
{
return (path >> 32) & 0xffff;
}
static unsigned short
qpath_i2id(unsigned long long path)
{
return (path >> 16) & 0xffff;
}
static unsigned short
qpath_i3id(unsigned long long path)
{
return path & 0xffff;
}
static void
decode_qpath(Qid *qid, unsigned char *type, int *i1, int *i2, int *i3)
{
unsigned short i1id = qpath_i1id(qid->path);
unsigned short i2id = qpath_i2id(qid->path);
unsigned short i3id = qpath_i3id(qid->path);
*type = qpath_type(qid->path);
if(i1id) {
switch(*type) {
case Fctl:
case Dpage: *i1 = pid_to_index(i1id); break;
case Fkey: *i1 = kid_to_index(i1id); break;
case Fdata:
case Fcolor:
case Dlabel: *i1 = lid_to_index(i1id); break;
}
if(i2id && (*i1 != -1)) {
*i2 = aid_to_index(page[*i1], i2id);
if(i3id && (*i2 != -1))
*i3 = cid_to_index(page[*i1]->area[*i2], i3id);
}
}
}
static char *
qid_to_name(Qid *qid)
{
unsigned char type;
int i1 = 0, i2 = 0, i3 = 0;
static char buf[32];
decode_qpath(qid, &type, &i1, &i2, &i3);
if((i1 == -1) || (i2 == -1) || (i3 == -1))
return 0;
switch(type) {
case Droot: return "/"; break;
case Ddef: return "def"; break;
case Dkeys: return "keys"; break;
case Fbar:
case Dbar: return "bar"; break;
case Dpage:
if(i1 == sel)
return "sel";
snprintf(buf, sizeof(buf), "%u", i1 + 1);
return buf;
break;
case Dlabel:
snprintf(buf, sizeof(buf), "%u", i1 + 1);
return buf;
break;
case Darea:
if(!i2) {
if(page[i1]->sel)
return "float";
else
return "sel";
}
if(page[i1]->sel == i2)
return "sel";
snprintf(buf, sizeof(buf), "%u", i2 + 1);
return buf;
break;
case Dclient:
if(page[i1]->area[i2]->sel == i3)
return "sel";
snprintf(buf, sizeof(buf), "%u", i3 + 1);
return buf;
break;
case Fcolor: return "color"; break;
case Fdata: return "data"; break;
case Fexpand: return "expand"; break;
case Fctl: return "ctl"; break;
case Fborder: return "border"; break;
case Fsnap: return "border"; break;
case Finc: return "inc"; break;
case Fgeom: return "geometry"; break;
case Fname: return "name"; break;
case Fevent: return "event"; break;
case Fkey: return key[i1]->name; break;
default: return nil; break;
}
}
static int
name_to_type(char *name, unsigned char dir_type)
{
unsigned int i;
if(!name || !name[0] || !strncmp(name, "/", 2) || !strncmp(name, "..", 3))
return Droot;
if(!strncmp(name, "new", 4)) {
switch(dir_type) {
case Droot: return Dpage; break;
case Dbar: return Dlabel; break;
case Dpage: return Darea; break;
}
}
if(!strncmp(name, "bar", 4)) {
if(dir_type == Droot)
return Dbar;
else
return Fbar;
}
if(!strncmp(name, "def", 4))
return Ddef;
if(!strncmp(name, "keys", 5))
return Dkeys;
if(!strncmp(name, "ctl", 4))
return Fctl;
if(!strncmp(name, "event", 6))
return Fevent;
if(!strncmp(name, "snap", 5))
return Fsnap;
if(!strncmp(name, "name", 5))
return Fname;
if(!strncmp(name, "border", 7))
return Fborder;
if(!strncmp(name, "inc", 4))
return Finc;
if(!strncmp(name, "geometry", 9))
return Fgeom;
if(!strncmp(name, "expand", 7))
return Fexpand;
if(!strncmp(name, "color", 6))
return Fcolor;
if(!strncmp(name, "data", 5))
return Fdata;
if(name_to_key(name))
return Fkey;
if(!strncmp(name, "sel", 4))
goto dyndir;
i = (unsigned short) cext_strtonum(name, 1, 0xffff, &err);
if(err)
return -1;
dyndir:
/*fprintf(stderr, "nametotype: dir_type = %d\n", dir_type);*/
switch(dir_type) {
case Droot: return Dpage; break;
case Dbar: return Dlabel; break;
case Dpage: return Darea; break;
case Darea: return Dclient; break;
}
return -1;
}
static int
mkqid(Qid *dir, char *wname, Qid *new, Bool iswalk)
{
unsigned char dir_type;
int dir_i1 = 0, dir_i2 = 0, dir_i3 = 0;
int type, i;
decode_qpath(dir, &dir_type, &dir_i1, &dir_i2, &dir_i3);
if((dir_i1 == -1) || (dir_i2 == -1) || (dir_i3 == -1))
return -1;
type = name_to_type(wname, dir_type);
new->dir_type = dir_type;
new->version = 0;
switch(type) {
case Droot:
*new = root_qid;
break;
case Ddef:
new->type = IXP_QTDIR;
new->path = mkqpath(Ddef, 0, 0, 0);
break;
case Dkeys:
new->type = IXP_QTDIR;
new->path = mkqpath(Dkeys, 0, 0, 0);
break;
case Dbar:
new->type = IXP_QTDIR;
new->path = mkqpath(Dbar, 0, 0, 0);
break;
case Dlabel:
new->type = IXP_QTDIR;
if(!strncmp(wname, "new", 4)) {
/*fprintf(stderr, "mkqid iswalk=%d, wname=%s\n", iswalk, wname);*/
if(iswalk)
new->path = mkqpath(Dlabel, new_label()->id, 0, 0);
else
new->path = mkqpath(Dlabel, 0,0 ,0);
}
else {
i = cext_strtonum(wname, 1, 0xffff, &err);
if(err || (i - 1 >= nlabel))
return -1;
new->path = mkqpath(Dlabel, label[i - 1]->id, 0, 0);
}
break;
case Dpage:
new->type = IXP_QTDIR;
if(!strncmp(wname, "new", 4)) {
if(iswalk) {
Page *p = alloc_page();
new->path = mkqpath(Dpage, p->id, 0, 0);
focus_page(p);
}
else
new->path = mkqpath(Dpage, 0, 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, 1, 0xffff, &err);
if(err || (i - 1 >= npage))
return -1;
new->path = mkqpath(Dpage, page[i - 1]->id, 0, 0);
}
break;
case Darea:
{
Page *p = page[dir_i1];
new->type = IXP_QTDIR;
if(!strncmp(wname, "new", 4)) {
if(iswalk) {
Area *a = alloc_area();
p->area = (Area **)cext_array_attach((void **)p->area, a, sizeof(Area *), &p->areasz);
p->narea++;
new->path = mkqpath(Darea, p->id, a->id, 0);
}
else
new->path = mkqpath(Darea, p->id, 0, 0); /* simple stat */
}
else if(!strncmp(wname, "sel", 4))
new->path = mkqpath(Darea, p->id, p->area[p->sel]->id, 0);
else {
i = cext_strtonum(wname, 1, 0xffff, &err);
if(err || (i - 1 >= p->narea))
return -1;
new->path = mkqpath(Darea, p->id, p->area[i - 1]->id, 0);
}
}
break;
case Dclient:
{
Page *p = page[dir_i1];
Area *a = p->area[dir_i2];
new->type = IXP_QTDIR;
if(!strncmp(wname, "sel", 4)) {
if(!a->nclient)
return -1;
new->path = mkqpath(Dclient, p->id, a->id, a->client[a->sel]->id);
}
else {
i = cext_strtonum(wname, 1, 0xffff, &err);
if(err || (i - 1 >= a->nclient))
return -1;
new->path = mkqpath(Dclient, p->id, a->id, a->client[i - 1]->id);
}
}
break;
case Fkey:
{
Key *k;
if(!(k = name_to_key(wname)))
return -1;
new->type = IXP_QTFILE;
new->path = mkqpath(Fkey, k->id, 0, 0);
}
break;
case Fdata:
case Fcolor:
if(dir_i1 >= nlabel)
return -1;
default:
new->type = IXP_QTFILE;
new->path = mkqpath(type, qpath_i1id(dir->path), qpath_i2id(dir->path), qpath_i3id(dir->path));
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;
/*fprintf(stderr, "wm: xwalk: fid=%d\n", fcall->fid);*/
if(!(m = ixp_server_fid2map(c, fcall->fid)))
return Enofid;
/*fprintf(stderr, "wm: xwalk1: fid=%d\n", fcall->fid);*/
if(fcall->fid != fcall->newfid && (ixp_server_fid2map(c, fcall->newfid)))
return Enofid;
/*fprintf(stderr, "wm: xwalk2: fid=%d\n", fcall->fid);*/
if(fcall->nwname) {
dir = m->qid;
for(nwqid = 0; (nwqid < fcall->nwname)
&& !mkqid(&dir, fcall->wname[nwqid], &fcall->wqid[nwqid], True); 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) {
/*fprintf(stderr, "%s", "xwalk: no such file\n");*/
return Enofile;
}
}
/*fprintf(stderr, "wm: xwalk3: fid=%d\n", fcall->fid);*/
/* 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 = WMII_IOUNIT;
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, False);
return ixp_sizeof_stat(stat);
}
static unsigned int
type_to_stat(Stat *stat, char *wname, Qid *dir)
{
unsigned char dir_type;
int dir_i1 = 0, dir_i2 = 0, dir_i3 = 0;
int type;
char buf[32];
Client *c;
decode_qpath(dir, &dir_type, &dir_i1, &dir_i2, &dir_i3);
if((dir_i1 == -1) || (dir_i2 == -1) || (dir_i3 == -1))
return -1;
type = name_to_type(wname, dir_type);
switch (type) {
case Dclient:
case Darea:
case Dpage:
case Ddef:
case Dkeys:
case Dbar:
case Dlabel:
case Droot:
return mkstat(stat, dir, wname, 0, DMDIR | DMREAD | DMEXEC);
break;
case Fctl:
case Fevent:
return mkstat(stat, dir, wname, 0, DMREAD);
break;
case Fborder:
if(dir_type == Ddef)
snprintf(buf, sizeof(buf), "%d", def.border);
else
snprintf(buf, sizeof(buf), "%d", page[dir_i1]->area[dir_i2]->client[dir_i3]->frame.border);
return mkstat(stat, dir, wname, strlen(buf), DMREAD | DMWRITE);
break;
case Fbar:
if(dir_type == Ddef)
snprintf(buf, sizeof(buf), "%d", def.bar);
else
snprintf(buf, sizeof(buf), "%d", page[dir_i1]->area[dir_i2]->client[dir_i3]->frame.bar);
return mkstat(stat, dir, wname, strlen(buf), DMREAD | DMWRITE);
break;
case Finc:
snprintf(buf, sizeof(buf), "%d", def.inc);
return mkstat(stat, dir, wname, strlen(buf), DMREAD | DMWRITE);
break;
case Fgeom:
c = page[dir_i1]->area[dir_i2]->client[dir_i3];
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, wname, strlen(buf), DMREAD | DMWRITE);
break;
case Fsnap:
snprintf(buf, sizeof(buf), "%d", def.snap);
return mkstat(stat, dir, wname, strlen(buf), DMREAD | DMWRITE);
break;
case Fname:
c = page[dir_i1]->area[dir_i2]->client[dir_i3];
return mkstat(stat, dir, wname, strlen(c->name), DMREAD);
break;
case Fkey:
return mkstat(stat, dir, wname, 0, DMWRITE);
break;
case Fexpand:
snprintf(buf, sizeof(buf), "%u", iexpand + 1);
return mkstat(stat, dir, wname, strlen(buf), DMREAD | DMWRITE);
break;
case Fdata:
return mkstat(stat, dir, wname, (dir_i1 == nlabel) ? 0 : strlen(label[dir_i1]->data), DMREAD | DMWRITE);
break;
case Fcolor:
return mkstat(stat, dir, wname, 23, DMREAD | DMWRITE);
break;
}
return 0;
}
static char *
xremove(IXPConn *c, Fcall *fcall)
{
IXPMap *m = ixp_server_fid2map(c, fcall->fid);
unsigned char type;
int i1 = 0, i2 = 0, i3 = 0;
if(!m)
return Enofid;
decode_qpath(&m->qid, &type, &i1, &i2, &i3);
if((i1 == -1) || (i2 == -1) || (i3 == -1))
return Enofile;
switch(type) {
case Dlabel:
{
Label *l = label[i1];
/* clunk */
cext_array_detach((void **)c->map, m, &c->mapsz);
free(m);
/* now detach the label */
detach_label(l);
free(l);
if(iexpand >= nlabel)
iexpand = 0;
draw_bar();
}
break;
case Fkey:
{
Key *k = key[i1];
ungrab_key(k);
destroy_key(k);
}
break;
default:
return Enoperm;
break;
}
fcall->id = RREMOVE;
ixp_server_respond_fcall(c, fcall);
return nil;
}
static char *
xread(IXPConn *c, Fcall *fcall)
{
Stat stat;
IXPMap *m = ixp_server_fid2map(c, fcall->fid);
unsigned char *p = fcall->data;
unsigned int i, len;
char buf[32];
unsigned char type;
int i1 = 0, i2 = 0, i3 = 0;
Client *client;
if(!m)
return Enofid;
decode_qpath(&m->qid, &type, &i1, &i2, &i3);
if((i1 == -1) || (i2 == -1) || (i3 == -1))
return Enofile;
fcall->count = 0;
if(fcall->offset) {
switch (type) {
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, "def", &m->qid);
len += type_to_stat(&stat, "keys", &m->qid);
len += type_to_stat(&stat, "bar", &m->qid);
len += type_to_stat(&stat, "new", &m->qid);
for(i = 0; i < npage; i++) {
if(i == sel)
snprintf(buf, sizeof(buf), "%s", "sel");
else
snprintf(buf, sizeof(buf), "%u", i + 1);
len += type_to_stat(&stat, buf, &m->qid);
if(len <= fcall->offset)
continue;
break;
}
/* offset found, proceeding */
for(; i < npage; i++) {
if(i == sel)
snprintf(buf, sizeof(buf), "%s", "sel");
else
snprintf(buf, sizeof(buf), "%u", i + 1);
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 Dkeys:
/* jump to offset */
len = 0;
for(i = 0; i < nkey; i++) {
len += type_to_stat(&stat, key[i]->name, &m->qid);
fprintf(stderr, "len=%d <= fcall->offset=%lld\n", len, fcall->offset);
if(len <= fcall->offset)
continue;
break;
}
/* offset found, proceeding */
for(; i < nkey; i++) {
fprintf(stderr, "offset xread %s\n", key[i]->name);
len = type_to_stat(&stat, key[i]->name, &m->qid);
if(fcall->count + len > fcall->iounit)
break;
fcall->count += len;
p = ixp_enc_stat(p, &stat);
}
break;
case Dbar:
/* jump to offset */
len = type_to_stat(&stat, "expand", &m->qid);
len += type_to_stat(&stat, "new", &m->qid);
for(i = 0; i < nlabel; i++) {
snprintf(buf, sizeof(buf), "%u", i + 1);
len += type_to_stat(&stat, buf, &m->qid);
if(len <= fcall->offset)
continue;
break;
}
/* offset found, proceeding */
for(; i < nlabel; i++) {
snprintf(buf, sizeof(buf), "%u", i + 1);
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);
for(i = 0; i < page[i1]->narea; i++) {
if(i == page[i1]->sel)
snprintf(buf, sizeof(buf), "%s", "sel");
else
snprintf(buf, sizeof(buf), "%u", i + 1);
len += type_to_stat(&stat, buf, &m->qid);
if(len <= fcall->offset)
continue;
break;
}
/* offset found, proceeding */
for(; i < page[i1]->narea; i++) {
if(i == page[i1]->sel)
snprintf(buf, sizeof(buf), "%s", "sel");
else
snprintf(buf, sizeof(buf), "%u", i + 1);
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);
for(i = 0; i < page[i1]->area[i2]->nclient; i++) {
if(i == page[i1]->area[i2]->sel)
snprintf(buf, sizeof(buf), "%s", "sel");
else
snprintf(buf, sizeof(buf), "%u", i + 1);
len += type_to_stat(&stat, buf, &m->qid);
if(len <= fcall->offset)
continue;
break;
}
/* offset found, proceeding */
for(; i < page[i1]->area[i2]->nclient; i++) {
if(i == page[i1]->area[i2]->sel)
snprintf(buf, sizeof(buf), "%s", "sel");
else
snprintf(buf, sizeof(buf), "%u", i + 1);
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 (type) {
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, "def", &m->qid);
p = ixp_enc_stat(p, &stat);
fcall->count += type_to_stat(&stat, "keys", &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, "new", &m->qid);
p = ixp_enc_stat(p, &stat);
for(i = 0; i < npage; i++) {
if(i == sel)
snprintf(buf, sizeof(buf), "%s", "sel");
else
snprintf(buf, sizeof(buf), "%u", i + 1);
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 Dkeys:
for(i = 0; i < nkey; i++) {
fprintf(stderr, "normal xread %s\n", key[i]->name);
len = type_to_stat(&stat, key[i]->name, &m->qid);
if(fcall->count + len > fcall->iounit)
break;
fcall->count += len;
p = ixp_enc_stat(p, &stat);
}
break;
case Dbar:
fcall->count = type_to_stat(&stat, "expand", &m->qid);
p = ixp_enc_stat(p, &stat);
fcall->count += type_to_stat(&stat, "new", &m->qid);
p = ixp_enc_stat(p, &stat);
for(i = 0; i < nlabel; i++) {
snprintf(buf, sizeof(buf), "%u", i + 1);
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 Dlabel:
if(i1 >= nlabel)
return Enofile;
fcall->count = type_to_stat(&stat, "color", &m->qid);
p = ixp_enc_stat(p, &stat);
fcall->count += type_to_stat(&stat, "data", &m->qid);
p = ixp_enc_stat(p, &stat);
break;
case Ddef:
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:
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);
for(i = 0; i < page[i1]->narea; i++) {
if(i == page[i1]->sel)
snprintf(buf, sizeof(buf), "%s", "sel");
else
snprintf(buf, sizeof(buf), "%u", i + 1);
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);
for(i = 0; i < page[i1]->area[i2]->nclient; i++) {
if(i == page[i1]->area[i2]->sel)
snprintf(buf, sizeof(buf), "%s", "sel");
else
snprintf(buf, sizeof(buf), "%u", i + 1);
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);
/*fprintf(stderr, "msgl=%d\n", fcall->count);*/
p = ixp_enc_stat(p, &stat);
fcall->count += type_to_stat(&stat, "bar", &m->qid);
/*fprintf(stderr, "msgl=%d\n", fcall->count);*/
p = ixp_enc_stat(p, &stat);
fcall->count += type_to_stat(&stat, "name", &m->qid);
/*fprintf(stderr, "msgl=%d\n", fcall->count);*/
p = ixp_enc_stat(p, &stat);
fcall->count += type_to_stat(&stat, "geometry", &m->qid);
/*fprintf(stderr, "msgl=%d\n", fcall->count);*/
p = ixp_enc_stat(p, &stat);
fcall->count += type_to_stat(&stat, "ctl", &m->qid);
/*fprintf(stderr, "msgl=%d\n", fcall->count);*/
p = ixp_enc_stat(p, &stat);
break;
case Fctl:
return Enoperm;
break;
case Fevent:
ixp_server_enqueue_fcall(c, fcall);
return nil;
break;
case Fborder:
if(m->qid.dir_type == Ddef)
snprintf(buf, sizeof(buf), "%u", def.border);
else
snprintf(buf, sizeof(buf), "%u", page[i1]->area[i2]->client[i3]->frame.border);
fcall->count = strlen(buf);
memcpy(p, buf, fcall->count);
break;
case Fbar:
if(m->qid.dir_type == Ddef)
snprintf(buf, sizeof(buf), "%u", def.bar);
else
snprintf(buf, sizeof(buf), "%u", page[i1]->area[i2]->client[i3]->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[i1]->area[i2]->client[i3];
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[i1]->area[i2]->client[i3]->name)))
memcpy(p, page[i1]->area[i2]->client[i3]->name, fcall->count);
break;
case Fexpand:
snprintf(buf, sizeof(buf), "%u", iexpand + 1);
fcall->count = strlen(buf);
memcpy(p, buf, fcall->count);
break;
case Fdata:
if(i1 >= nlabel)
return Enofile;
if((fcall->count = strlen(label[i1]->data)))
memcpy(p, label[i1]->data, fcall->count);
break;
case Fcolor:
if(i1 >= nlabel)
return Enofile;
if((fcall->count = strlen(label[i1]->colstr)))
memcpy(p, label[i1]->colstr, 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 i;
unsigned char type;
int i1 = 0, i2 = 0, i3 = 0;
if(!m)
return Enofid;
decode_qpath(&m->qid, &type, &i1, &i2, &i3);
if((i1 == -1) || (i2 == -1) || (i3 == -1))
return Enofile;
switch (qpath_type(m->qid.path)) {
case Fctl:
if(fcall->count > sizeof(buf) - 1)
return Enocommand;
memcpy(buf, fcall->data, fcall->count);
buf[fcall->count] = 0;
switch(m->qid.dir_type) {
case Droot:
if(!strncmp(buf, "quit", 5))
srv.running = 0;
else if(!strncmp(buf, "pager", 6))
pager();
else if(!strncmp(buf, "detached", 9))
detached_clients();
else if(!strncmp(buf, "attach", 7))
attach_detached_client();
else if(!strncmp(buf, "select", 6))
select_page(&buf[7]);
else if(!strncmp(buf, "grab ", 5)) {
if(strlen(&buf[5]))
grab_key(create_key(&buf[5]));
}
else
return Enocommand;
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:
break;
}
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.dir_type == Ddef)
def.border = i;
else {
page[i1]->area[i2]->client[i3]->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.dir_type == Ddef)
def.border = i;
else {
page[i1]->area[i2]->client[i3]->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[i1]->area[i2]->client[i3]->frame.rect, buf);
/* TODO: resize client */
break;
case Fexpand:
{
const char *err;
if(fcall->count && fcall->count < 16) {
memcpy(buf, fcall->data, fcall->count);
buf[fcall->count] = 0;
i = (unsigned short) cext_strtonum(buf, 1, 0xffff, &err);
if(!err && (i - 1 < nlabel)) {
iexpand = i - 1;
draw_bar();
break;
}
}
}
return Enofile;
break;
case Fdata:
{
unsigned int len = fcall->count;
if(len >= sizeof(label[i1]->data))
len = sizeof(label[i1]->data) - 1;
memcpy(label[i1]->data, fcall->data, len);
label[i1]->data[len] = 0;
draw_bar();
}
break;
case Fcolor:
if((i1 >= nlabel) || (fcall->count != 23)
|| (fcall->data[0] != '#') || (fcall->data[8] != '#')
|| (fcall->data[16] != '#')
)
return "wrong color format";
memcpy(label[i1]->colstr, fcall->data, fcall->count);
label[i1]->colstr[fcall->count] = 0;
blitz_loadcolor(dpy, screen, label[i1]->colstr, &label[i1]->color);
draw_bar();
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))) {
/*fprintf(stderr, "do_fcall=%d\n", fcall.id);*/
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 TREMOVE: errstr = xremove(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);
}
check_x_event(nil);
}
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_id(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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