#ifdef HAVE_CONFIG_H
#include <config.h>
#endif
#include <stdio.h>
#include <X11/Xmd.h>
#include <X11/Xatom.h>
#include <X11/Xos.h>
#include "Xlibint.h"
#include "Xlcint.h"
#include "XlcPublic.h"
#include "XlcPubI.h"
#include "Ximint.h"
#include <ctype.h>
#include <assert.h>
#ifdef COMPOSECACHE
# include <sys/types.h>
# include <sys/stat.h>
# include <sys/mman.h>
# include <langinfo.h>
#endif
#ifdef COMPOSECACHE
#define XIM_GLOBAL_CACHE_DIR "/var/cache/libx11/compose/"
#define XIM_HOME_CACHE_DIR "/.compose-cache/"
#define XIM_CACHE_MAGIC ('X' | 'i'<<8 | 'm'<<16 | 'C'<<24)
#define XIM_CACHE_VERSION 4
#define XIM_CACHE_TREE_ALIGNMENT 4
#define XIM_HASH_PRIME_1 13
#define XIM_HASH_PRIME_2 1234096939
typedef INT32 DTStructIndex;
struct _XimCacheStruct {
INT32 id;
INT32 version;
DTStructIndex tree;
DTStructIndex mb;
DTStructIndex wc;
DTStructIndex utf8;
DTStructIndex size;
DTIndex top;
DTIndex treeused;
DTCharIndex mbused;
DTCharIndex wcused;
DTCharIndex utf8used;
char fname[1];
};
Private struct _XimCacheStruct* _XimCache_mmap = NULL;
Private DefTreeBase _XimCachedDefaultTreeBase;
Private int _XimCachedDefaultTreeRefcount = 0;
#endif
Public Bool
_XimCheckIfLocalProcessing(Xim im)
{
FILE *fp;
char *name;
if(strcmp(im->core.im_name, "") == 0) {
name = _XlcFileName(im->core.lcd, COMPOSE_FILE);
if (name != (char *)NULL) {
fp = _XFopenFile (name, "r");
Xfree(name);
if (fp != (FILE *)NULL) {
fclose(fp);
return(True);
}
}
return(False);
} else if(strcmp(im->core.im_name, "local") == 0 ||
strcmp(im->core.im_name, "none" ) == 0 ) {
return(True);
}
return(False);
}
Private void
XimFreeDefaultTree(
DefTreeBase *b)
{
if (!b) return;
if (b->tree == NULL) return;
#ifdef COMPOSECACHE
if (b->tree == _XimCachedDefaultTreeBase.tree) {
_XimCachedDefaultTreeRefcount--;
return;
}
#endif
Xfree (b->tree);
if (b->mb) Xfree (b->mb);
if (b->wc) Xfree (b->wc);
if (b->utf8) Xfree (b->utf8);
b->tree = NULL;
b->mb = NULL;
b->wc = NULL;
b->utf8 = NULL;
b->treeused = b->treesize = 0;
b->mbused = b->mbsize = 0;
b->wcused = b->wcsize = 0;
b->utf8used = b->utf8size = 0;
}
Public void
_XimLocalIMFree(
Xim im)
{
XimFreeDefaultTree(&im->private.local.base);
im->private.local.top = 0;
if(im->core.im_resources) {
Xfree(im->core.im_resources);
im->core.im_resources = NULL;
}
if(im->core.ic_resources) {
Xfree(im->core.ic_resources);
im->core.ic_resources = NULL;
}
if(im->core.im_values_list) {
Xfree(im->core.im_values_list);
im->core.im_values_list = NULL;
}
if(im->core.ic_values_list) {
Xfree(im->core.ic_values_list);
im->core.ic_values_list = NULL;
}
if(im->core.styles) {
Xfree(im->core.styles);
im->core.styles = NULL;
}
if(im->core.res_name) {
Xfree(im->core.res_name);
im->core.res_name = NULL;
}
if(im->core.res_class) {
Xfree(im->core.res_class);
im->core.res_class = NULL;
}
if(im->core.im_name) {
Xfree(im->core.im_name);
im->core.im_name = NULL;
}
if (im->private.local.ctom_conv) {
_XlcCloseConverter(im->private.local.ctom_conv);
im->private.local.ctom_conv = NULL;
}
if (im->private.local.ctow_conv) {
_XlcCloseConverter(im->private.local.ctow_conv);
im->private.local.ctow_conv = NULL;
}
if (im->private.local.ctoutf8_conv) {
_XlcCloseConverter(im->private.local.ctoutf8_conv);
im->private.local.ctoutf8_conv = NULL;
}
if (im->private.local.cstomb_conv) {
_XlcCloseConverter(im->private.local.cstomb_conv);
im->private.local.cstomb_conv = NULL;
}
if (im->private.local.cstowc_conv) {
_XlcCloseConverter(im->private.local.cstowc_conv);
im->private.local.cstowc_conv = NULL;
}
if (im->private.local.cstoutf8_conv) {
_XlcCloseConverter(im->private.local.cstoutf8_conv);
im->private.local.cstoutf8_conv = NULL;
}
if (im->private.local.ucstoc_conv) {
_XlcCloseConverter(im->private.local.ucstoc_conv);
im->private.local.ucstoc_conv = NULL;
}
if (im->private.local.ucstoutf8_conv) {
_XlcCloseConverter(im->private.local.ucstoutf8_conv);
im->private.local.ucstoutf8_conv = NULL;
}
return;
}
Private Status
_XimLocalCloseIM(
XIM xim)
{
Xim im = (Xim)xim;
XIC ic;
XIC next;
ic = im->core.ic_chain;
im->core.ic_chain = NULL;
while (ic) {
(*ic->methods->destroy) (ic);
next = ic->core.next;
Xfree ((char *) ic);
ic = next;
}
_XimLocalIMFree(im);
_XimDestroyIMStructureList(im);
return(True);
}
Public char *
_XimLocalGetIMValues(
XIM xim,
XIMArg *values)
{
Xim im = (Xim)xim;
XimDefIMValues im_values;
_XimGetCurrentIMValues(im, &im_values);
return(_XimGetIMValueData(im, (XPointer)&im_values, values,
im->core.im_resources, im->core.im_num_resources));
}
Public char *
_XimLocalSetIMValues(
XIM xim,
XIMArg *values)
{
Xim im = (Xim)xim;
XimDefIMValues im_values;
char *name = (char *)NULL;
_XimGetCurrentIMValues(im, &im_values);
name = _XimSetIMValueData(im, (XPointer)&im_values, values,
im->core.im_resources, im->core.im_num_resources);
_XimSetCurrentIMValues(im, &im_values);
return(name);
}
#ifdef COMPOSECACHE
Private Bool
_XimReadCachedDefaultTree(
int fd_cache,
const char *name,
const char *encoding,
DTStructIndex size)
{
struct _XimCacheStruct* m;
int namelen = strlen (name) + 1;
int encodinglen = strlen (encoding) + 1;
m = mmap (NULL, size, PROT_READ, MAP_PRIVATE, fd_cache, 0);
if (m == NULL || m == MAP_FAILED)
return False;
assert (m->id == XIM_CACHE_MAGIC);
assert (m->version == XIM_CACHE_VERSION);
if (size != m->size ||
size < XOffsetOf (struct _XimCacheStruct, fname) + namelen + encodinglen) {
fprintf (stderr, "Ignoring broken XimCache %s [%s]\n", name, encoding);
munmap (m, size);
return False;
}
if (strncmp (name, m->fname, namelen) != 0) {
fprintf (stderr, "Filename hash clash - expected %s, got %s\n",
name, m->fname);
munmap (m, size);
return False;
}
if (strncmp (encoding, m->fname + namelen, encodinglen) != 0) {
fprintf (stderr, "Enoding hash clash - expected %s, got %s\n",
encoding, m->fname + namelen);
munmap (m, size);
return False;
}
_XimCache_mmap = m;
_XimCachedDefaultTreeBase.tree = (DefTree *) (((char *) m) + m->tree);
_XimCachedDefaultTreeBase.mb = (((char *) m) + m->mb);
_XimCachedDefaultTreeBase.wc = (wchar_t *) (((char *) m) + m->wc);
_XimCachedDefaultTreeBase.utf8 = (((char *) m) + m->utf8);
_XimCachedDefaultTreeBase.treeused = m->treeused;
_XimCachedDefaultTreeBase.mbused = m->mbused;
_XimCachedDefaultTreeBase.wcused = m->wcused;
_XimCachedDefaultTreeBase.utf8used = m->utf8used;
_XimCachedDefaultTreeRefcount = 0;
return True;
}
Private unsigned int strToHash (
const char *name)
{
unsigned int hash = 0;
while (*name)
hash = hash * XIM_HASH_PRIME_1 + *(unsigned const char *)name++;
return hash % XIM_HASH_PRIME_2;
}
Private int _XimCachedFileName (
const char *dir, const char *name,
const char *intname, const char *encoding,
uid_t uid, int isglobal, char **res, off_t *size)
{
struct stat st_name, st;
int fd;
unsigned int len, hash, hash2;
struct _XimCacheStruct *m;
if (stat (name, &st_name) == -1 || ! S_ISREG (st_name.st_mode)
|| stat (dir, &st) == -1 || ! S_ISDIR (st.st_mode) || st.st_uid != uid
|| (st.st_mode & 0022) != 0000) {
*res = NULL;
return -1;
}
len = strlen (dir);
hash = strToHash (intname);
hash2 = strToHash (encoding);
*res = Xmalloc (len + 1 + 27 + 1);
if (len == 0 || dir [len-1] != '/')
sprintf (*res, "%s/%c%d_%03x_%08x_%08x", dir, _XimGetMyEndian(),
XIM_CACHE_VERSION, sizeof (DefTree), hash, hash2);
else
sprintf (*res, "%s%c%d_%03x_%08x_%08x", dir, _XimGetMyEndian(),
XIM_CACHE_VERSION, sizeof (DefTree), hash, hash2);
if ( (fd = _XOpenFile (*res, O_RDONLY)) == -1)
return -1;
if (fstat (fd, &st) == -1) {
Xfree (*res);
*res = NULL;
close (fd);
return -1;
}
*size = st.st_size;
if (! S_ISREG (st.st_mode) || st.st_uid != uid
|| (st.st_mode & 0022) != 0000 || st.st_mtime <= st_name.st_mtime
|| (st.st_mtime < time (NULL) - 24*60*60 && ! isglobal)) {
close (fd);
if (unlink (*res) != 0) {
Xfree (*res);
*res = NULL;
}
return -1;
}
m = mmap (NULL, sizeof (struct _XimCacheStruct), PROT_READ, MAP_PRIVATE,
fd, 0);
if (m == NULL || m == MAP_FAILED) {
close (fd);
Xfree (*res);
*res = NULL;
return -1;
}
if (*size < sizeof (struct _XimCacheStruct) || m->id != XIM_CACHE_MAGIC) {
munmap (m, sizeof (struct _XimCacheStruct));
close (fd);
fprintf (stderr, "Ignoring broken XimCache %s\n", *res);
Xfree (*res);
*res = NULL;
return -1;
}
if (m->version != XIM_CACHE_VERSION) {
munmap (m, sizeof (struct _XimCacheStruct));
close (fd);
if (unlink (*res) != 0) {
Xfree (*res);
*res = NULL;
}
return -1;
}
munmap (m, sizeof (struct _XimCacheStruct));
return fd;
}
Private Bool _XimLoadCache (
int fd,
const char *name,
const char *encoding,
off_t size,
Xim im)
{
if (_XimCache_mmap ||
_XimReadCachedDefaultTree (fd, name, encoding, size)) {
_XimCachedDefaultTreeRefcount++;
memcpy (&im->private.local.base, &_XimCachedDefaultTreeBase,
sizeof (_XimCachedDefaultTreeBase));
im->private.local.top = _XimCache_mmap->top;
return True;
}
return False;
}
Private void
_XimWriteCachedDefaultTree(
const char *name,
const char *encoding,
const char *cachename,
Xim im)
{
int fd;
FILE *fp;
struct _XimCacheStruct *m;
int msize = (XOffsetOf(struct _XimCacheStruct, fname)
+ strlen(name) + strlen(encoding) + 2
+ XIM_CACHE_TREE_ALIGNMENT-1) & -XIM_CACHE_TREE_ALIGNMENT;
DefTreeBase *b = &im->private.local.base;
if (! b->tree && ! (b->tree = Xmalloc (sizeof(DefTree))) )
return;
if (! b->mb && ! (b->mb = Xmalloc (1)) )
return;
if (! b->wc && ! (b->wc = Xmalloc (sizeof(wchar_t))) )
return;
if (! b->utf8 && ! (b->utf8 = Xmalloc (1)) )
return;
memset (b->tree, 0, sizeof(DefTree));
b->mb[0] = 0;
b->wc[0] = 0;
b->utf8[0] = 0;
m = Xmalloc (msize);
memset (m, 0, msize);
m->id = XIM_CACHE_MAGIC;
m->version = XIM_CACHE_VERSION;
m->top = im->private.local.top;
m->treeused = b->treeused;
m->mbused = b->mbused;
m->wcused = b->wcused;
m->utf8used = b->utf8used;
m->tree = msize;
m->wc = msize + sizeof (DefTree) * m->treeused;
m->mb = m->wc + sizeof (wchar_t) * m->wcused;
m->utf8 = m->mb + m->mbused;
m->size = m->utf8 + m->utf8used;
strcpy (m->fname, name);
strcpy (m->fname+strlen(name)+1, encoding);
if ( (fd = _XOpenFileMode (cachename, O_WRONLY | O_CREAT | O_EXCL,
0600)) < 0)
return;
if (! (fp = fdopen (fd, "wb")) ) {
close (fd);
return;
}
fwrite (m, msize, 1, fp);
fwrite (im->private.local.base.tree, sizeof(DefTree), m->treeused, fp);
fwrite (im->private.local.base.wc, sizeof(wchar_t), m->wcused, fp);
fwrite (im->private.local.base.mb, 1, m->mbused, fp);
fwrite (im->private.local.base.utf8, 1, m->utf8used, fp);
if (fclose (fp) != 0)
unlink (cachename);
_XimCache_mmap = m;
memcpy (&_XimCachedDefaultTreeBase, &im->private.local.base,
sizeof (_XimCachedDefaultTreeBase));
}
#endif
Private void
_XimCreateDefaultTree(
Xim im)
{
FILE *fp = NULL;
char *name, *tmpname = NULL, *intname;
char *cachename = NULL;
char *home = getenv("HOME");
char *cachedir = NULL;
char *tmpcachedir = NULL;
int hl = home ? strlen (home) : 0;
#ifdef COMPOSECACHE
const char *encoding = nl_langinfo (CODESET);
uid_t euid = geteuid ();
gid_t egid = getegid ();
int cachefd = -1;
off_t size;
#endif
name = getenv("XCOMPOSEFILE");
if (name == (char *) NULL) {
if (home != (char *) NULL) {
tmpname = name = Xmalloc(hl + 10 + 1);
if (name != (char *) NULL) {
int fd;
strcpy(name, home);
strcpy(name + hl, "/.XCompose");
if ( (fd = _XOpenFile (name, O_RDONLY)) < 0) {
Xfree (name);
name = tmpname = NULL;
} else
close (fd);
}
}
}
if (name == (char *) NULL) {
tmpname = name = _XlcFileName(im->core.lcd, COMPOSE_FILE);
}
intname = name;
#ifdef COMPOSECACHE
if (getuid () == euid && getgid () == egid && euid != 0) {
char *c;
cachedir = getenv("XCOMPOSECACHE");
if (cachedir && (c = strchr (cachedir, '='))) {
tmpcachedir = strdup (cachedir);
intname = tmpcachedir + (c-cachedir) + 1;
tmpcachedir[c-cachedir] = '\0';
cachedir = tmpcachedir;
}
}
if (! cachedir) {
cachefd = _XimCachedFileName (XIM_GLOBAL_CACHE_DIR, name, intname,
encoding, 0, 1, &cachename, &size);
if (cachefd != -1) {
if (_XimLoadCache (cachefd, intname, encoding, size, im)) {
if (tmpcachedir)
Xfree (tmpcachedir);
if (tmpname)
Xfree (tmpname);
if (cachename)
Xfree (cachename);
close (cachefd);
return;
}
close (cachefd);
}
if (cachename)
Xfree (cachename);
cachename = NULL;
}
if (getuid () == euid && getgid () == egid && euid != 0 && home) {
if (! cachedir) {
tmpcachedir = cachedir = Xmalloc (hl+strlen(XIM_HOME_CACHE_DIR)+1);
strcpy (cachedir, home);
strcat (cachedir, XIM_HOME_CACHE_DIR);
}
cachefd = _XimCachedFileName (cachedir, name, intname, encoding,
euid, 0, &cachename, &size);
if (cachefd != -1) {
if (_XimLoadCache (cachefd, intname, encoding, size, im)) {
if (tmpcachedir)
Xfree (tmpcachedir);
if (tmpname)
Xfree (tmpname);
if (cachename)
Xfree (cachename);
close (cachefd);
return;
}
close (cachefd);
}
}
#endif
if (! (fp = _XFopenFile (name, "r"))) {
if (tmpcachedir)
Xfree (tmpcachedir);
if (tmpname)
Xfree (tmpname);
if (cachename)
Xfree (cachename);
return;
}
_XimParseStringFile(fp, im);
fclose(fp);
#ifdef COMPOSECACHE
if (cachename) {
assert (euid != 0);
_XimWriteCachedDefaultTree (intname, encoding, cachename, im);
}
#endif
if (tmpcachedir)
Xfree (tmpcachedir);
if (tmpname)
Xfree (tmpname);
if (cachename)
Xfree (cachename);
}
Private XIMMethodsRec Xim_im_local_methods = {
_XimLocalCloseIM,
_XimLocalSetIMValues,
_XimLocalGetIMValues,
_XimLocalCreateIC,
_XimLcctstombs,
_XimLcctstowcs,
_XimLcctstoutf8
};
Public Bool
_XimLocalOpenIM(
Xim im)
{
XLCd lcd = im->core.lcd;
XlcConv conv;
XimDefIMValues im_values;
XimLocalPrivateRec* private = &im->private.local;
_XimInitialResourceInfo();
if(_XimSetIMResourceList(&im->core.im_resources,
&im->core.im_num_resources) == False) {
goto Open_Error;
}
if(_XimSetICResourceList(&im->core.ic_resources,
&im->core.ic_num_resources) == False) {
goto Open_Error;
}
_XimSetIMMode(im->core.im_resources, im->core.im_num_resources);
_XimGetCurrentIMValues(im, &im_values);
if(_XimSetLocalIMDefaults(im, (XPointer)&im_values,
im->core.im_resources, im->core.im_num_resources) == False) {
goto Open_Error;
}
_XimSetCurrentIMValues(im, &im_values);
if (!(conv = _XlcOpenConverter(lcd, XlcNCompoundText, lcd, XlcNMultiByte)))
goto Open_Error;
private->ctom_conv = conv;
if (!(conv = _XlcOpenConverter(lcd, XlcNCompoundText, lcd, XlcNWideChar)))
goto Open_Error;
private->ctow_conv = conv;
if (!(conv = _XlcOpenConverter(lcd, XlcNCompoundText, lcd, XlcNUtf8String)))
goto Open_Error;
private->ctoutf8_conv = conv;
if (!(conv = _XlcOpenConverter(lcd, XlcNCharSet, lcd, XlcNMultiByte)))
goto Open_Error;
private->cstomb_conv = conv;
if (!(conv = _XlcOpenConverter(lcd, XlcNCharSet, lcd, XlcNWideChar)))
goto Open_Error;
private->cstowc_conv = conv;
if (!(conv = _XlcOpenConverter(lcd, XlcNCharSet, lcd, XlcNUtf8String)))
goto Open_Error;
private->cstoutf8_conv = conv;
if (!(conv = _XlcOpenConverter(lcd, XlcNUcsChar, lcd, XlcNChar)))
goto Open_Error;
private->ucstoc_conv = conv;
if (!(conv = _XlcOpenConverter(lcd, XlcNUcsChar, lcd, XlcNUtf8String)))
goto Open_Error;
private->ucstoutf8_conv = conv;
private->base.treeused = 1;
private->base.mbused = 1;
private->base.wcused = 1;
private->base.utf8used = 1;
_XimCreateDefaultTree(im);
im->methods = &Xim_im_local_methods;
private->current_ic = (XIC)NULL;
return(True);
Open_Error :
_XimLocalIMFree(im);
return(False);
}