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Diffstat (limited to 'src/Error.c')
| -rw-r--r-- | src/Error.c | 735 |
1 files changed, 735 insertions, 0 deletions
diff --git a/src/Error.c b/src/Error.c new file mode 100644 index 0000000..27186d6 --- /dev/null +++ b/src/Error.c @@ -0,0 +1,735 @@ +/* $Xorg: Error.c,v 1.5 2001/02/09 02:03:54 xorgcvs Exp $ */ + +/*********************************************************** +Copyright 1987, 1988 by Digital Equipment Corporation, Maynard, Massachusetts +Copyright 1993 by Sun Microsystems, Inc. Mountain View, CA. + + All Rights Reserved + +Permission to use, copy, modify, and distribute this software and its +documentation for any purpose and without fee is hereby granted, +provided that the above copyright notice appear in all copies and that +both that copyright notice and this permission notice appear in +supporting documentation, and that the names of Digital or Sun not be +used in advertising or publicity pertaining to distribution of the +software without specific, written prior permission. + +DIGITAL DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, INCLUDING +ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO EVENT SHALL +DIGITAL BE LIABLE FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR +ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, +WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, +ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS +SOFTWARE. + +SUN DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, +INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FIT- +NESS FOR A PARTICULAR PURPOSE. IN NO EVENT SHALL SUN BE LI- +ABLE FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR +ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR +PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR +OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH +THE USE OR PERFORMANCE OF THIS SOFTWARE. + +******************************************************************/ + +/* + +Copyright 1987, 1988, 1998 The Open Group + +Permission to use, copy, modify, distribute, and sell this software and its +documentation for any purpose is hereby granted without fee, provided that +the above copyright notice appear in all copies and that both that +copyright notice and this permission notice appear in supporting +documentation. + +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 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. + +Except as contained in this notice, the name of The Open Group 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. + +*/ + +#include "IntrinsicI.h" +#include <stdio.h> + +/* The error handlers in the application context aren't used since we can't + come up with a uniform way of using them. If you can, define + GLOBALERRORS to be FALSE (or 0). */ + +#ifndef GLOBALERRORS +#define GLOBALERRORS 1 +#endif + +static void InitErrorHandling(); +#if GLOBALERRORS +static XrmDatabase errorDB = NULL; +static Boolean error_inited = FALSE; +void _XtDefaultErrorMsg(), _XtDefaultWarningMsg(), + _XtDefaultError(), _XtDefaultWarning(); +static XtErrorMsgHandler errorMsgHandler = _XtDefaultErrorMsg; +static XtErrorMsgHandler warningMsgHandler = _XtDefaultWarningMsg; +static XtErrorHandler errorHandler = _XtDefaultError; +static XtErrorHandler warningHandler = _XtDefaultWarning; +#endif /* GLOBALERRORS */ + +XrmDatabase *XtGetErrorDatabase() +{ + XrmDatabase* retval; +#if GLOBALERRORS + LOCK_PROCESS; + retval = &errorDB; + UNLOCK_PROCESS; +#else + retval = XtAppGetErrorDatabase(_XtDefaultAppContext()); +#endif /* GLOBALERRORS */ + return retval; +} + +XrmDatabase *XtAppGetErrorDatabase(app) + XtAppContext app; +{ + XrmDatabase* retval; +#if GLOBALERRORS + LOCK_PROCESS; + retval = &errorDB; + UNLOCK_PROCESS; +#else + LOCK_APP(app); + retval= &app->errorDB; + UNLOCK_APP(app); +#endif /* GLOBALERRORS */ + return retval; +} + +#if NeedFunctionPrototypes +void XtGetErrorDatabaseText( + register _Xconst char* name, + register _Xconst char* type, + register _Xconst char* class, + _Xconst char* defaultp, + String buffer, + int nbytes + ) +#else +void XtGetErrorDatabaseText(name,type,class,defaultp, buffer, nbytes) + register String name, type, class; + String defaultp; + String buffer; + int nbytes; +#endif +{ +#if GLOBALERRORS + XtAppGetErrorDatabaseText(NULL, + name,type,class,defaultp, buffer, nbytes, NULL); +#else + XtAppGetErrorDatabaseText(_XtDefaultAppContext(), + name,type,class,defaultp, buffer, nbytes, NULL); +#endif /* GLOBALERRORS */ +} + +#if NeedFunctionPrototypes +void XtAppGetErrorDatabaseText( + XtAppContext app, + register _Xconst char* name, + register _Xconst char* type, + register _Xconst char* class, + _Xconst char* defaultp, + String buffer, + int nbytes, + XrmDatabase db + ) +#else +void XtAppGetErrorDatabaseText(app, name,type,class,defaultp, + buffer, nbytes, db) + XtAppContext app; + register String name, type, class; + String defaultp; + String buffer; + int nbytes; + XrmDatabase db; +#endif +{ + String str_class; + String type_str; + XrmValue result; + char *str_name = NULL; + char *temp = NULL; + +#if GLOBALERRORS + LOCK_PROCESS; + if (error_inited == FALSE) { + InitErrorHandling (&errorDB); + error_inited = TRUE; + } +#else + LOCK_APP(app); + if (app->error_inited == FALSE) { + InitErrorHandling (&app->errorDB); + app->error_inited = TRUE; + } +#endif /* GLOBALERRORS */ + if (!(str_name = ALLOCATE_LOCAL(strlen(name) + strlen(type) + 2))) + _XtAllocError(NULL); + (void) sprintf(str_name, "%s.%s", name, type); + /* XrmGetResource requires the name and class to be fully qualified + * and to have the same number of components. */ + str_class = (char *)class; + if (! strchr(class, '.')) { + if (!(temp = ALLOCATE_LOCAL(2 * strlen(class) + 2))) + _XtAllocError(NULL); + (void) sprintf(temp, "%s.%s", class, class); + str_class = temp; + } + if (db == NULL) { +#if GLOBALERRORS + (void) XrmGetResource(errorDB, str_name, str_class, &type_str, + &result); +#else + (void) XrmGetResource(app->errorDB, str_name, str_class, &type_str, + &result); +#endif /* GLOBALERRORS */ + } else (void) XrmGetResource(db, str_name, str_class, &type_str, &result); + if (result.addr) { + (void) strncpy (buffer, result.addr, nbytes); + if (result.size > nbytes) buffer[nbytes-1] = 0; + } else { + int len = strlen(defaultp); + if (len >= nbytes) len = nbytes-1; + (void) memmove(buffer, defaultp, len); + buffer[len] = '\0'; + } + if (str_name) + DEALLOCATE_LOCAL(str_name); + if (temp) + DEALLOCATE_LOCAL(temp); +#if GLOBALERRORS + UNLOCK_PROCESS; +#else + UNLOCK_APP(app); +#endif +} + +static void InitErrorHandling (db) + XrmDatabase *db; +{ + XrmDatabase errordb; + + errordb = XrmGetFileDatabase(ERRORDB); + XrmMergeDatabases(errordb, db); +} + +static void DefaultMsg (name,type,class,defaultp,params,num_params,error,fn) + String name,type,class,defaultp; + String* params; + Cardinal* num_params; + Bool error; + void (*fn)(String); +{ +#define BIGBUF 1024 +#ifdef notyet /* older versions don't, might want to wait until more do */ +#if defined(__linux__) || defined(CSRG_BASED) /* everyone else needs to get with the program */ +#define USE_SNPRINTF +#endif +#endif + char buffer[BIGBUF]; + char* message; + XtGetErrorDatabaseText(name,type,class,defaultp, buffer, BIGBUF); +/*need better solution here, perhaps use lower level printf primitives? */ + if (params == NULL || num_params == NULL || *num_params == 0) + (*fn)(buffer); +#ifndef WIN32 /* and OS/2 */ + else if ((getuid () != geteuid ()) || getuid() == 0) { + if ((error && errorHandler == _XtDefaultError) || + (!error && warningHandler == _XtDefaultWarning)) { + /* + * if it's just going to go to stderr anyway, then we'll + * fprintf to stderr ourselves and skip the insecure sprintf. + */ + int i = *num_params; + String par[10]; + if (i > 10) i = 10; + (void) memmove((char*)par, (char*)params, i * sizeof(String) ); + bzero( &par[i], (10-i) * sizeof(String) ); + (void) fprintf (stderr, "%s%s", + error ? XTERROR_PREFIX : XTWARNING_PREFIX, + error ? "Error: " : "Warning: "); + (void) fprintf (stderr, buffer, + par[0], par[1], par[2], par[3], par[4], + par[5], par[6], par[7], par[8], par[9]); + (void) fprintf (stderr, "%c", '\n'); + if (i != *num_params) + (*fn) ( "Some arguments in previous message were lost" ); + else if (error) exit (1); + } else { + /* + * can't tell what it might do, so we'll play it safe + */ + XtWarning ("\ +This program is an suid-root program or is being run by the root user.\n\ +The full text of the error or warning message cannot be safely formatted\n\ +in this environment. You may get a more descriptive message by running the\n\ +program as a non-root user or by removing the suid bit on the executable."); + (*fn)(buffer); /* if *fn is an ErrorHandler it should exit */ + } + } +#endif + else { + /* + * If you have snprintf the worst thing that could happen is you'd + * lose some information. Without snprintf you're probably going to + * scramble your heap and perhaps SEGV -- sooner or later. + * If it hurts when you go like this then don't go like this! :-) + */ + int i = *num_params; + String par[10]; + if (i > 10) i = 10; + (void) memmove((char*)par, (char*)params, i * sizeof(String) ); + bzero( &par[i], (10-i) * sizeof(String) ); + if (i != *num_params) + XtWarning( "Some arguments in following message were lost" ); + /* + * resist any temptation you might have to make `message' a + * local buffer on the stack. Doing so is a security hole + * in programs executing as root. Error and Warning + * messages shouldn't be called frequently enough for this + * to be a performance issue. + */ + if ((message = __XtMalloc (BIGBUF))) { +#ifndef USE_SNPRINTF + message[BIGBUF-1] = 0; + (void) sprintf (message, buffer, +#else + (void) snprintf (message, BIGBUF, buffer, +#endif + par[0], par[1], par[2], par[3], par[4], + par[5], par[6], par[7], par[8], par[9]); +#ifndef USE_SNPRINTF + if (message[BIGBUF-1] != '\0') + XtWarning ("Possible heap corruption in Xt{Error,Warning}MsgHandler"); +#endif + (*fn)(message); + XtFree(message); + } else { + XtWarning ("Memory allocation failed, arguments in the following message were lost"); + (*fn)(buffer); + } + } +} + +void _XtDefaultErrorMsg (name,type,class,defaultp,params,num_params) + String name,type,class,defaultp; + String* params; + Cardinal* num_params; +{ + DefaultMsg (name,type,class,defaultp,params,num_params,True,XtError); +} + +void _XtDefaultWarningMsg (name,type,class,defaultp,params,num_params) + String name,type,class,defaultp; + String* params; + Cardinal* num_params; +{ + DefaultMsg (name,type,class,defaultp,params,num_params,False,XtWarning); +} + +#if NeedFunctionPrototypes +void XtErrorMsg( + _Xconst char* name, + _Xconst char* type, + _Xconst char* class, + _Xconst char* defaultp, + String* params, + Cardinal* num_params + ) +#else +void XtErrorMsg(name,type,class,defaultp,params,num_params) + String name,type,class,defaultp; + String* params; + Cardinal* num_params; +#endif +{ +#if GLOBALERRORS + LOCK_PROCESS; + (*errorMsgHandler)((String)name,(String)type,(String)class, + (String)defaultp,params,num_params); + UNLOCK_PROCESS; +#else + XtAppErrorMsg(_XtDefaultAppContext(),name,type,class, + defaultp,params,num_params); +#endif /* GLOBALERRORS */ +} + +#if NeedFunctionPrototypes +void XtAppErrorMsg( + XtAppContext app, + _Xconst char* name, + _Xconst char* type, + _Xconst char* class, + _Xconst char* defaultp, + String* params, + Cardinal* num_params + ) +#else +void XtAppErrorMsg(app, name,type,class,defaultp,params,num_params) + XtAppContext app; + String name,type,class,defaultp; + String* params; + Cardinal* num_params; +#endif +{ +#if GLOBALERRORS + LOCK_PROCESS; + (*errorMsgHandler)((String)name,(String)type,(String)class, + (String)defaultp,params,num_params); + UNLOCK_PROCESS; +#else + LOCK_APP(app); + (*app->errorMsgHandler)(name,type,class,defaultp,params,num_params); + UNLOCK_APP(app); +#endif /* GLOBALERRORS */ +} + +#if NeedFunctionPrototypes +void XtWarningMsg( + _Xconst char* name, + _Xconst char* type, + _Xconst char* class, + _Xconst char* defaultp, + String* params, + Cardinal* num_params + ) +#else +void XtWarningMsg(name,type,class,defaultp,params,num_params) + String name,type,class,defaultp; + String* params; + Cardinal* num_params; +#endif +{ +#if GLOBALERRORS + LOCK_PROCESS; + (*warningMsgHandler)((String)name,(String)type,(String)class, + (String)defaultp,params,num_params); + UNLOCK_PROCESS; +#else + XtAppWarningMsg(_XtDefaultAppContext(),name,type,class, + defaultp,params,num_params); +#endif /* GLOBALERRORS */ +} + +#if NeedFunctionPrototypes +void XtAppWarningMsg( + XtAppContext app, + _Xconst char* name, + _Xconst char* type, + _Xconst char* class, + _Xconst char* defaultp, + String* params, + Cardinal* num_params + ) +#else +void XtAppWarningMsg(app,name,type,class,defaultp,params,num_params) + XtAppContext app; + String name,type,class,defaultp; + String* params; + Cardinal* num_params; +#endif +{ +#if GLOBALERRORS + LOCK_PROCESS; + (*warningMsgHandler)((String)name,(String)type,(String)class, + (String)defaultp,params,num_params); + UNLOCK_PROCESS; +#else + LOCK_APP(app); + (*app->warningMsgHandler)(name,type,class,defaultp,params,num_params); + UNLOCK_APP(app); +#endif /* GLOBALERRORS */ +} + +void XtSetErrorMsgHandler(handler) + XtErrorMsgHandler handler; +{ +#if GLOBALERRORS + LOCK_PROCESS; + if (handler != NULL) errorMsgHandler = handler; + else errorMsgHandler = _XtDefaultErrorMsg; + UNLOCK_PROCESS; +#else + XtAppSetErrorMsgHandler(_XtDefaultAppContext(), handler); +#endif /* GLOBALERRORS */ +} + +#if NeedFunctionPrototypes +XtErrorMsgHandler XtAppSetErrorMsgHandler( + XtAppContext app, + XtErrorMsgHandler handler) +#else +XtErrorMsgHandler XtAppSetErrorMsgHandler(app,handler) + XtAppContext app; + XtErrorMsgHandler handler; +#endif +{ + XtErrorMsgHandler old; +#if GLOBALERRORS + LOCK_PROCESS; + old = errorMsgHandler; + if (handler != NULL) errorMsgHandler = handler; + else errorMsgHandler = _XtDefaultErrorMsg; + UNLOCK_PROCESS; +#else + LOCK_APP(app); + old = app->errorMsgHandler; + if (handler != NULL) app->errorMsgHandler = handler; + else app->errorMsgHandler = _XtDefaultErrorMsg; + UNLOCK_APP(app); +#endif /* GLOBALERRORS */ + return old; +} + +void XtSetWarningMsgHandler(handler) + XtErrorMsgHandler handler; +{ +#if GLOBALERRORS + LOCK_PROCESS; + if (handler != NULL) warningMsgHandler = handler; + else warningMsgHandler = _XtDefaultWarningMsg; + UNLOCK_PROCESS; +#else + XtAppSetWarningMsgHandler(_XtDefaultAppContext(),handler); +#endif /* GLOBALERRORS */ +} + +#if NeedFunctionPrototypes +XtErrorMsgHandler XtAppSetWarningMsgHandler( + XtAppContext app, + XtErrorMsgHandler handler) +#else +XtErrorMsgHandler XtAppSetWarningMsgHandler(app,handler) + XtAppContext app; + XtErrorMsgHandler handler; +#endif +{ + XtErrorMsgHandler old; +#if GLOBALERRORS + LOCK_PROCESS; + old = warningMsgHandler; + if (handler != NULL) warningMsgHandler = handler; + else warningMsgHandler = _XtDefaultWarningMsg; + UNLOCK_PROCESS; +#else + LOCK_APP(app); + old = app->warningMsgHandler; + if (handler != NULL) app->warningMsgHandler = handler; + else app->warningMsgHandler = _XtDefaultWarningMsg; + UNLOCK_APP(app); +#endif /* GLOBALERRORS */ + return old; +} + +void _XtDefaultError(message) + String message; +{ + if (message && *message) + (void)fprintf(stderr, "%sError: %s\n", XTERROR_PREFIX, message); + exit(1); +} + +void _XtDefaultWarning(message) + String message; +{ + if (message && *message) + (void)fprintf(stderr, "%sWarning: %s\n", XTWARNING_PREFIX, message); + return; +} + +#if NeedFunctionPrototypes +void XtError( + _Xconst char* message + ) +#else +void XtError(message) + String message; +#endif +{ +#if GLOBALERRORS + LOCK_PROCESS; + (*errorHandler)((String)message); + UNLOCK_PROCESS; +#else + XtAppError(_XtDefaultAppContext(),message); +#endif /* GLOBALERRORS */ +} + +#if NeedFunctionPrototypes +void XtAppError( + XtAppContext app, + _Xconst char* message + ) +#else +void XtAppError(app,message) + XtAppContext app; + String message; +#endif +{ +#if GLOBALERRORS + LOCK_PROCESS; + (*errorHandler)((String)message); + UNLOCK_PROCESS; +#else + LOCK_APP(app); + (*app->errorHandler)(message); + UNLOCK_APP(app); +#endif /* GLOBALERRORS */ +} + +#if NeedFunctionPrototypes +void XtWarning( + _Xconst char* message + ) +#else +void XtWarning(message) + String message; +#endif +{ +#if GLOBALERRORS + LOCK_PROCESS; + (*warningHandler)((String)message); + UNLOCK_PROCESS; +#else + XtAppWarning(_XtDefaultAppContext(),message); +#endif /* GLOBALERRORS */ +} + +#if NeedFunctionPrototypes +void XtAppWarning( + XtAppContext app, + _Xconst char* message + ) +#else +void XtAppWarning(app,message) + XtAppContext app; + String message; +#endif +{ +#if GLOBALERRORS + LOCK_PROCESS; + (*warningHandler)((String)message); + UNLOCK_PROCESS; +#else + LOCK_APP(app); + (*app->warningHandler)(message); + UNLOCK_APP(app); +#endif /* GLOBALERRORS */ +} + +#if NeedFunctionPrototypes +void XtSetErrorHandler(XtErrorHandler handler) +#else +void XtSetErrorHandler(handler) + XtErrorHandler handler; +#endif +{ +#if GLOBALERRORS + LOCK_PROCESS; + if (handler != NULL) errorHandler = handler; + else errorHandler = _XtDefaultError; + UNLOCK_PROCESS; +#else + XtAppSetErrorHandler(_XtDefaultAppContext(),handler); +#endif /* GLOBALERRORS */ +} + +#if NeedFunctionPrototypes +XtErrorHandler XtAppSetErrorHandler( + XtAppContext app, + XtErrorHandler handler) +#else +XtErrorHandler XtAppSetErrorHandler(app,handler) + XtAppContext app; + XtErrorHandler handler; +#endif +{ + XtErrorHandler old; +#if GLOBALERRORS + LOCK_PROCESS; + old = errorHandler; + if (handler != NULL) errorHandler = handler; + else errorHandler = _XtDefaultError; + UNLOCK_PROCESS; +#else + LOCK_APP(app); + old = app->errorHandler; + if (handler != NULL) app->errorHandler = handler; + else app->errorHandler = _XtDefaultError; + UNLOCK_APP(app); +#endif /* GLOBALERRORS */ + return old; +} + +#if NeedFunctionPrototypes +void XtSetWarningHandler(XtErrorHandler handler) +#else +void XtSetWarningHandler(handler) + XtErrorHandler handler; +#endif +{ +#if GLOBALERRORS + LOCK_PROCESS; + if (handler != NULL) warningHandler = handler; + else warningHandler = _XtDefaultWarning; + UNLOCK_PROCESS; +#else + XtAppSetWarningHandler(_XtDefaultAppContext(),handler); +#endif /* GLOBALERRORS */ +} + +#if NeedFunctionPrototypes +XtErrorHandler XtAppSetWarningHandler( + XtAppContext app, + XtErrorHandler handler) +#else +XtErrorHandler XtAppSetWarningHandler(app,handler) + XtAppContext app; + XtErrorHandler handler; +#endif +{ + XtErrorHandler old; +#if GLOBALERRORS + LOCK_PROCESS; + old = warningHandler; + if (handler != NULL) warningHandler = handler; + else warningHandler = _XtDefaultWarning; + UNLOCK_PROCESS; +#else + LOCK_APP(app); + old = app->warningHandler; + if (handler != NULL) app->warningHandler = handler; + else app->warningHandler = _XtDefaultWarning; + UNLOCK_APP(app); +#endif /* GLOBALERRORS */ + return old; +} + +void _XtSetDefaultErrorHandlers(errMsg, warnMsg, err, warn) + XtErrorMsgHandler *errMsg, *warnMsg; + XtErrorHandler *err, *warn; +{ +#ifndef GLOBALERRORS + LOCK_PROCESS; + *errMsg = _XtDefaultErrorMsg; + *warnMsg = _XtDefaultWarningMsg; + *err = _XtDefaultError; + *warn = _XtDefaultWarning; + UNLOCK_PROCESS; +#endif /* GLOBALERRORS */ +} |