diff options
Diffstat (limited to 'libX11/src/xlibi18n/XlcDL.c')
| -rw-r--r-- | libX11/src/xlibi18n/XlcDL.c | 636 |
1 files changed, 636 insertions, 0 deletions
diff --git a/libX11/src/xlibi18n/XlcDL.c b/libX11/src/xlibi18n/XlcDL.c new file mode 100644 index 000000000..96a9e9535 --- /dev/null +++ b/libX11/src/xlibi18n/XlcDL.c @@ -0,0 +1,636 @@ +/* +Copyright 1985, 1986, 1987, 1991, 1998 The Open Group + +Portions Copyright 2000 Sun Microsystems, Inc. All Rights Reserved. + +Permission is hereby granted, free of charge, to any person obtaining a +copy of this software and associated documentation files (the +"Software"), to deal in the Software without restriction, including +without limitation the rights to use, copy, modify, merge, publish, +distribute, sublicense, and/or sell copies of the Software, and to +permit persons to whom the Software is furnished to do so, subject to +the following conditions: The above copyright notice and this +permission notice shall be included in all copies or substantial +portions of the Software. + + +THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS +OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF +MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. +IN NO EVENT SHALL THE OPEN GROUP OR SUN MICROSYSTEMS, INC. BE LIABLE +FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF +CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH +THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE EVEN IF +ADVISED IN ADVANCE OF THE POSSIBILITY OF SUCH DAMAGES. + + +Except as contained in this notice, the names of The Open Group and/or +Sun Microsystems, Inc. shall not be used in advertising or otherwise to +promote the sale, use or other dealings in this Software without prior +written authorization from The Open Group and/or Sun Microsystems, +Inc., as applicable. + + +X Window System is a trademark of The Open Group + +OSF/1, OSF/Motif and Motif are registered trademarks, and OSF, the OSF +logo, LBX, X Window System, and Xinerama are trademarks of the Open +Group. All other trademarks and registered trademarks mentioned herein +are the property of their respective owners. No right, title or +interest in or to any trademark, service mark, logo or trade name of +Sun Microsystems, Inc. or its licensors is granted. + +*/ +/* $XFree86: xc/lib/X11/XlcDL.c,v 1.12 2003/04/13 19:22:19 dawes Exp $ */ +/* $XdotOrg: lib/X11/src/xlibi18n/XlcDL.c,v 1.6 2005-07-11 15:24:32 lars Exp $ */ + +#ifdef HAVE_CONFIG_H +# include <config.h> +#else +# if defined(hpux) +# define HAVE_DL_H +# else +# define HAVE_DLFCN_H +# endif +#endif + +#include <stdio.h> + +#ifdef HAVE_DL_H +#include <dl.h> +#endif + +#ifdef HAVE_DLFCN_H +#include <dlfcn.h> +#endif + +#include <ctype.h> + +#include "Xlibint.h" +#include "XlcPublic.h" +#include "XlcPubI.h" + +#if defined(_LP64) && defined(__sparcv9) +# define _MACH64_NAME "sparcv9" +#else +# undef _MACH64_NAME +#endif /* defined(_LP64) && defined(__sparcv9) */ + +#ifdef _MACH64_NAME +# define _MACH64_NAME_LEN (sizeof (_MACH64_NAME) - 1) +#endif + +#define XI18N_DLREL 2 + +#define iscomment(ch) ((ch) == '\0' || (ch) == '#') + +typedef enum { + XLC_OBJECT, + XIM_OBJECT, + XOM_OBJECT +} XI18NDLType; + +typedef struct { + XI18NDLType type; + int locale_name_len; + char *locale_name; + char *dl_name; + char *open; + char *im_register; + char *im_unregister; + int dl_release; + unsigned int refcount; +#if defined(hpux) + shl_t dl_module; +#else + void *dl_module; +#endif +} XI18NObjectsListRec, *XI18NObjectsList; + +#define OBJECT_INIT_LEN 8 +#define OBJECT_INC_LEN 4 +static int lc_len = 0; +static XI18NObjectsListRec *xi18n_objects_list = NULL; +static int lc_count = 0; + +static int +parse_line(char *line, char **argv, int argsize) +{ + int argc = 0; + char *p = line; + + while (argc < argsize) { + while (isspace(*p)) { + ++p; + } + if (iscomment(*p)){ + break; + } + argv[argc++] = p; + while (!isspace(*p)) { + ++p; + } + if (iscomment(*p)) { + break; + } + *p++ = '\0'; + } + return argc; +} + +static char * +strdup_with_underscore(const char *symbol) +{ + char *result; + + if ((result = malloc(strlen(symbol) + 2)) == NULL) + return NULL; + result[0] = '_'; + strcpy(result + 1, symbol); + return result; +} + +#ifndef hpux +static void * +try_both_dlsym (void *handle, char *name) +{ + void *ret; + + ret = dlsym (handle, name); + if (!ret) + { + name = strdup_with_underscore (name); + if (name) + { + ret = dlsym (handle, name); + free (name); + } + } + return ret; +} +#endif + +static void +resolve_object(char *path, const char *lc_name) +{ + char filename[BUFSIZ]; + FILE *fp; + char buf[BUFSIZ]; + + if (lc_len == 0) { /* True only for the 1st time */ + lc_len = OBJECT_INIT_LEN; + xi18n_objects_list = (XI18NObjectsList) + Xmalloc(sizeof(XI18NObjectsListRec) * lc_len); + if (!xi18n_objects_list) return; + } +/* +1266793 +Limit the length of path to prevent stack buffer corruption. + sprintf(filename, "%s/%s", path, "XI18N_OBJS"); +*/ + sprintf(filename, "%.*s/%s", BUFSIZ - 12, path, "XI18N_OBJS"); + fp = fopen(filename, "r"); + if (fp == (FILE *)NULL){ + return; + } + + while (fgets(buf, BUFSIZ, fp) != NULL){ + char *p = buf; + int n; + char *args[6]; + while (isspace(*p)){ + ++p; + } + if (iscomment(*p)){ + continue; + } + + if (lc_count == lc_len) { + lc_len += OBJECT_INC_LEN; + xi18n_objects_list = (XI18NObjectsList) + Xrealloc(xi18n_objects_list, + sizeof(XI18NObjectsListRec) * lc_len); + if (!xi18n_objects_list) return; + } + n = parse_line(p, args, 6); + + if (n == 3 || n == 5) { + if (!strcmp(args[0], "XLC")){ + xi18n_objects_list[lc_count].type = XLC_OBJECT; + } else if (!strcmp(args[0], "XOM")){ + xi18n_objects_list[lc_count].type = XOM_OBJECT; + } else if (!strcmp(args[0], "XIM")){ + xi18n_objects_list[lc_count].type = XIM_OBJECT; + } + xi18n_objects_list[lc_count].dl_name = strdup(args[1]); + xi18n_objects_list[lc_count].open = strdup(args[2]); + xi18n_objects_list[lc_count].dl_release = XI18N_DLREL; + xi18n_objects_list[lc_count].locale_name = strdup(lc_name); + xi18n_objects_list[lc_count].refcount = 0; + xi18n_objects_list[lc_count].dl_module = (void*)NULL; + if (n == 5) { + xi18n_objects_list[lc_count].im_register = strdup(args[3]); + xi18n_objects_list[lc_count].im_unregister = strdup(args[4]); + } else { + xi18n_objects_list[lc_count].im_register = NULL; + xi18n_objects_list[lc_count].im_unregister = NULL; + } + lc_count++; + } + } + fclose(fp); +} + +static char* +__lc_path(const char *dl_name, const char *lc_dir) +{ + char *path; + size_t len; + + /* + * reject this for possible security issue + */ + if (strstr (dl_name, "../")) + return NULL; + +#if defined (_LP64) && defined (_MACH64_NAME) + len = (lc_dir ? strlen(lc_dir) : 0 ) + + (dl_name ? strlen(dl_name) : 0) + _MACH64_NAME_LEN + 10; + path = Xmalloc(len + 1); + + if (strchr(dl_name, '/') != NULL) { + char *tmp = strdup(dl_name); + char *dl_dir, *dl_file; + char *slash_p; + slash_p = strchr(tmp, '/'); + *slash_p = '\0'; + dl_dir = tmp; + dl_file = ++slash_p; + + slash_p = strrchr(lc_dir, '/'); + *slash_p = '\0'; + strcpy(path, lc_dir); strcat(path, "/"); + strcat(path, dl_dir); strcat(path, "/"); + strcat(path, _MACH64_NAME); strcat(path, "/"); + strcat(path, dl_file); strcat(path, ".so.2"); + + *slash_p = '/'; + Xfree(tmp); + } else { + strcpy(path, lc_dir); strcat(path, "/"); + strcat(path, _MACH64_NAME); strcat(path, "/"); + strcat(path, dl_name); strcat(path, ".so.2"); + } +#else + len = (lc_dir ? strlen(lc_dir) : 0 ) + + (dl_name ? strlen(dl_name) : 0) + 10; +#if defined POSTLOCALELIBDIR + len += (strlen(POSTLOCALELIBDIR) + 1); +#endif + path = Xmalloc(len + 1); + + if (strchr(dl_name, '/') != NULL) { + char *slash_p; + slash_p = strrchr(lc_dir, '/'); + *slash_p = '\0'; + strcpy(path, lc_dir); strcat(path, "/"); +#if defined POSTLOCALELIBDIR + strcat(path, POSTLOCALELIBDIR); strcat(path, "/"); +#endif + strcat(path, dl_name); strcat(path, ".so.2"); + *slash_p = '/'; + } else { + strcpy(path, lc_dir); strcat(path, "/"); +#if defined POSTLOCALELIBDIR + strcat(path, POSTLOCALELIBDIR); strcat(path, "/"); +#endif + strcat(path, dl_name); strcat(path, ".so.2"); + } +#endif + return path; +} + +/* We reference count dlopen() and dlclose() of modules; unfortunately, + * since XCloseIM, XCloseOM, XlcClose aren't wrapped, but directly + * call the close method of the object, we leak a reference count every + * time we open then close a module. Fixing this would require + * either creating proxy objects or hooks for close_im/close_om + * in XLCd + */ +static Bool +open_object( + XI18NObjectsList object, + char *lc_dir) +{ + char *path; + + if (object->refcount == 0) { + path = __lc_path(object->dl_name, lc_dir); + if (!path) + return False; +#if defined(hpux) + object->dl_module = shl_load(path, BIND_DEFERRED, 0L); +#else + object->dl_module = dlopen(path, RTLD_LAZY); +#endif + Xfree(path); + + if (!object->dl_module) + return False; + } + + object->refcount++; + return True; +} + +static void * +fetch_symbol( + XI18NObjectsList object, + char *symbol) +{ + void *result = NULL; +#if defined(hpux) + int getsyms_cnt, i; + struct shl_symbol *symbols; +#endif + + if (symbol == NULL) + return NULL; + +#if defined(hpux) + getsyms_cnt = shl_getsymbols(object->dl_module, TYPE_PROCEDURE, + EXPORT_SYMBOLS, malloc, &symbols); + + for(i=0; i<getsyms_cnt; i++) { + if(!strcmp(symbols[i].name, symbol)) { + result = symbols[i].value; + break; + } + } + + if(getsyms_cnt > 0) { + free(symbols); + } +#else + result = try_both_dlsym(object->dl_module, symbol); +#endif + + return result; +} + +static void +close_object(XI18NObjectsList object) +{ + object->refcount--; + if (object->refcount == 0) + { +#if defined(hpux) + shl_unload(object->dl_module); +#else + dlclose(object->dl_module); +#endif + object->dl_module = NULL; + } +} + + +typedef XLCd (*dynamicLoadProc)(const char *); + +XLCd +_XlcDynamicLoad(const char *lc_name) +{ + XLCd lcd = (XLCd)NULL; + dynamicLoadProc lc_loader = (dynamicLoadProc)NULL; + int count; + XI18NObjectsList objects_list; + char lc_dir[BUFSIZE], lc_lib_dir[BUFSIZE]; + + if (lc_name == NULL) return (XLCd)NULL; + + if (_XlcLocaleDirName(lc_dir, BUFSIZE, (char *)lc_name) == (char *)NULL) + return (XLCd)NULL; + if (_XlcLocaleLibDirName(lc_lib_dir, BUFSIZE, (char *)lc_name) == (char*)NULL) + return (XLCd)NULL; + + resolve_object(lc_dir, lc_name); + resolve_object(lc_lib_dir, lc_name); + + objects_list = xi18n_objects_list; + count = lc_count; + for (; count-- > 0; objects_list++) { + if (objects_list->type != XLC_OBJECT || + strcmp(objects_list->locale_name, lc_name)) continue; + if (!open_object (objects_list, lc_dir) && \ + !open_object (objects_list, lc_lib_dir)) + continue; + + lc_loader = (dynamicLoadProc)fetch_symbol (objects_list, objects_list->open); + if (!lc_loader) continue; + lcd = (*lc_loader)(lc_name); + if (lcd != (XLCd)NULL) { + break; + } + + close_object (objects_list); + } + return (XLCd)lcd; +} + + +typedef XIM (*dynamicOpenProcp)(XLCd, Display *, XrmDatabase, char *, char *); + +static XIM +_XDynamicOpenIM(XLCd lcd, Display *display, XrmDatabase rdb, + char *res_name, char *res_class) +{ + XIM im = (XIM)NULL; + char lc_dir[BUFSIZE]; + char *lc_name; + dynamicOpenProcp im_openIM = (dynamicOpenProcp)NULL; + int count; + XI18NObjectsList objects_list = xi18n_objects_list; + + lc_name = lcd->core->name; + + if (_XlcLocaleLibDirName(lc_dir, BUFSIZE, lc_name) == NULL) return (XIM)0; + + count = lc_count; + for (; count-- > 0; objects_list++) { + if (objects_list->type != XIM_OBJECT || + strcmp(objects_list->locale_name, lc_name)) continue; + + if (!open_object (objects_list, lc_dir)) + continue; + + im_openIM = (dynamicOpenProcp)fetch_symbol(objects_list, objects_list->open); + if (!im_openIM) continue; + im = (*im_openIM)(lcd, display, rdb, res_name, res_class); + if (im != (XIM)NULL) { + break; + } + + close_object (objects_list); + } + return (XIM)im; +} + +typedef Bool (*dynamicRegisterCBProcp)( + XLCd, Display *, XrmDatabase, char *, char *, XIDProc, XPointer); + +static Bool +_XDynamicRegisterIMInstantiateCallback( + XLCd lcd, + Display *display, + XrmDatabase rdb, + char *res_name, + char *res_class, + XIDProc callback, + XPointer client_data) +{ + char lc_dir[BUFSIZE]; + char *lc_name; + dynamicRegisterCBProcp im_registerIM = (dynamicRegisterCBProcp)NULL; + Bool ret_flag = False; + int count; + XI18NObjectsList objects_list = xi18n_objects_list; +#if defined(hpux) + int getsyms_cnt, i; + struct shl_symbol *symbols; +#endif + + lc_name = lcd->core->name; + + if (_XlcLocaleLibDirName(lc_dir, BUFSIZE, lc_name) == NULL) return False; + + count = lc_count; + for (; count-- > 0; objects_list++) { + if (objects_list->type != XIM_OBJECT || + strcmp(objects_list->locale_name, lc_name)) continue; + + if (!open_object (objects_list, lc_dir)) + continue; + im_registerIM = (dynamicRegisterCBProcp)fetch_symbol(objects_list, + objects_list->im_register); + if (!im_registerIM) continue; + ret_flag = (*im_registerIM)(lcd, display, rdb, + res_name, res_class, + callback, client_data); + if (ret_flag) break; + + close_object (objects_list); + } + return (Bool)ret_flag; +} + +typedef Bool (*dynamicUnregisterProcp)( + XLCd, Display *, XrmDatabase, char *, char *, XIDProc, XPointer); + +static Bool +_XDynamicUnRegisterIMInstantiateCallback( + XLCd lcd, + Display *display, + XrmDatabase rdb, + char *res_name, + char *res_class, + XIDProc callback, + XPointer client_data) +{ + char lc_dir[BUFSIZE]; + char *lc_name; + dynamicUnregisterProcp im_unregisterIM = (dynamicUnregisterProcp)NULL; + Bool ret_flag = False; + int count; + XI18NObjectsList objects_list = xi18n_objects_list; +#if defined(hpux) + int getsyms_cnt, i; + struct shl_symbol *symbols; +#endif + + lc_name = lcd->core->name; + if (_XlcLocaleDirName(lc_dir, BUFSIZE, lc_name) == NULL) return False; + + count = lc_count; + for (; count-- > 0; objects_list++) { + if (objects_list->type != XIM_OBJECT || + strcmp(objects_list->locale_name, lc_name)) continue; + + if (!objects_list->refcount) /* Must already be opened */ + continue; + + im_unregisterIM = (dynamicUnregisterProcp)fetch_symbol(objects_list, + objects_list->im_unregister); + + if (!im_unregisterIM) continue; + ret_flag = (*im_unregisterIM)(lcd, display, rdb, + res_name, res_class, + callback, client_data); + if (ret_flag) { + close_object (objects_list); /* opened in RegisterIMInstantiateCallback */ + break; + } + } + return (Bool)ret_flag; +} + +Bool +_XInitDynamicIM(XLCd lcd) +{ + if(lcd == (XLCd)NULL) + return False; + lcd->methods->open_im = _XDynamicOpenIM; + lcd->methods->register_callback = _XDynamicRegisterIMInstantiateCallback; + lcd->methods->unregister_callback = _XDynamicUnRegisterIMInstantiateCallback; + return True; +} + + +typedef XOM (*dynamicIOpenProcp)( + XLCd, Display *, XrmDatabase, _Xconst char *, _Xconst char *); + +static XOM +_XDynamicOpenOM(XLCd lcd, Display *display, XrmDatabase rdb, + _Xconst char *res_name, _Xconst char *res_class) +{ + XOM om = (XOM)NULL; + int count; + char lc_dir[BUFSIZE]; + char *lc_name; + dynamicIOpenProcp om_openOM = (dynamicIOpenProcp)NULL; + XI18NObjectsList objects_list = xi18n_objects_list; +#if defined(hpux) + int getsyms_cnt, i; + struct shl_symbol *symbols; +#endif + + lc_name = lcd->core->name; + + if (_XlcLocaleLibDirName(lc_dir, BUFSIZE, lc_name) == NULL) return (XOM)0; + + count = lc_count; + for (; count-- > 0; objects_list++) { + if (objects_list->type != XOM_OBJECT || + strcmp(objects_list->locale_name, lc_name)) continue; + if (!open_object (objects_list, lc_dir)) + continue; + + om_openOM = (dynamicIOpenProcp)fetch_symbol(objects_list, objects_list->open); + if (!om_openOM) continue; + om = (*om_openOM)(lcd, display, rdb, res_name, res_class); + if (om != (XOM)NULL) { + break; + } + close_object(objects_list); + } + return (XOM)om; +} + +Bool +_XInitDynamicOM(XLCd lcd) +{ + if(lcd == (XLCd)NULL) + return False; + + lcd->methods->open_om = _XDynamicOpenOM; + + return True; +} |