DefErrMsg.c

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/* $Xorg: DefErrMsg.c,v 1.4 2001/02/09 02:03:52 xorgcvs Exp $ */

/*

Copyright 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.

*/
/* $XFree86: xc/lib/Xmu/DefErrMsg.c,v 1.7 2001/01/17 19:42:54 dawes Exp $ */

#include <stdio.h>
#define NEED_EVENTS
#include <X11/Xlibint.h>
#include <X11/Xproto.h>
#include <X11/Xmu/Error.h>
#include <X11/Xmu/SysUtil.h>

/*
 * XmuPrintDefaultErrorMessage - print a nice error that looks like the usual 
 * message.  Returns 1 if the caller should consider exitting else 0.
 */
int
XmuPrintDefaultErrorMessage(Display *dpy, XErrorEvent *event, FILE *fp)
{
    char buffer[BUFSIZ];
    char mesg[BUFSIZ];
    char number[32];
    char *mtype = "XlibMessage";
    register _XExtension *ext = (_XExtension *)NULL;
    _XExtension *bext = (_XExtension *)NULL;
    XGetErrorText(dpy, event->error_code, buffer, BUFSIZ);
    XGetErrorDatabaseText(dpy, mtype, "XError", "X Error", mesg, BUFSIZ);
    (void) fprintf(fp, "%s:  %s\n  ", mesg, buffer);
    XGetErrorDatabaseText(dpy, mtype, "MajorCode", "Request Major code %d", 
        mesg, BUFSIZ);
    (void) fprintf(fp, mesg, event->request_code);
    if (event->request_code < 128) {
        XmuSnprintf(number, sizeof(number), "%d", event->request_code);
        XGetErrorDatabaseText(dpy, "XRequest", number, "", buffer, BUFSIZ);
    } else {
        /* XXX this is non-portable */
        for (ext = dpy->ext_procs;
             ext && (ext->codes.major_opcode != event->request_code);
             ext = ext->next)
          ;
        if (ext)
          XmuSnprintf(buffer, sizeof(buffer), "%s", ext->name);
        else
            buffer[0] = '\0';
    }
    (void) fprintf(fp, " (%s)", buffer);
    fputs("\n  ", fp);
    if (event->request_code >= 128) {
        XGetErrorDatabaseText(dpy, mtype, "MinorCode", "Request Minor code %d",
                              mesg, BUFSIZ);
        (void) fprintf(fp, mesg, event->minor_code);
        if (ext) {
            XmuSnprintf(mesg, sizeof(mesg),
                        "%s.%d", ext->name, event->minor_code);
            XGetErrorDatabaseText(dpy, "XRequest", mesg, "", buffer, BUFSIZ);
            (void) fprintf(fp, " (%s)", buffer);
        }
        fputs("\n  ", fp);
    }
    if (event->error_code >= 128) {
        /* kludge, try to find the extension that caused it */
        buffer[0] = '\0';
        for (ext = dpy->ext_procs; ext; ext = ext->next) {
            if (ext->error_string) 
                (*ext->error_string)(dpy, event->error_code, &ext->codes,
                                     buffer, BUFSIZ);
            if (buffer[0]) {
                bext = ext;
                break;
            }
            if (ext->codes.first_error &&
                ext->codes.first_error < event->error_code &&
                (!bext || ext->codes.first_error > bext->codes.first_error))
                bext = ext;
        }    
        if (bext)
            XmuSnprintf(buffer, sizeof(buffer), "%s.%d", bext->name,
                        event->error_code - bext->codes.first_error);
        else
            strcpy(buffer, "Value");
        XGetErrorDatabaseText(dpy, mtype, buffer, "", mesg, BUFSIZ);
        if (mesg[0]) {
            fputs("  ", fp);
            (void) fprintf(fp, mesg, event->resourceid);
            fputs("\n", fp);
        }
        /* let extensions try to print the values */
        for (ext = dpy->ext_procs; ext; ext = ext->next) {
            if (ext->error_values)
                (*ext->error_values)(dpy, event, fp);
        }
    } else if ((event->error_code == BadWindow) ||
               (event->error_code == BadPixmap) ||
               (event->error_code == BadCursor) ||
               (event->error_code == BadFont) ||
               (event->error_code == BadDrawable) ||
               (event->error_code == BadColor) ||
               (event->error_code == BadGC) ||
               (event->error_code == BadIDChoice) ||
               (event->error_code == BadValue) ||
               (event->error_code == BadAtom)) {
        if (event->error_code == BadValue)
            XGetErrorDatabaseText(dpy, mtype, "Value", "Value 0x%x",
                                  mesg, BUFSIZ);
        else if (event->error_code == BadAtom)
            XGetErrorDatabaseText(dpy, mtype, "AtomID", "AtomID 0x%x",
                                  mesg, BUFSIZ);
        else
            XGetErrorDatabaseText(dpy, mtype, "ResourceID", "ResourceID 0x%x",
                                  mesg, BUFSIZ);
        (void) fprintf(fp, mesg, event->resourceid);
        fputs("\n  ", fp);
    }
    XGetErrorDatabaseText(dpy, mtype, "ErrorSerial", "Error Serial #%d", 
        mesg, BUFSIZ);
    (void) fprintf(fp, mesg, event->serial);
    fputs("\n  ", fp);
    XGetErrorDatabaseText(dpy, mtype, "CurrentSerial", "Current Serial #%d",
        mesg, BUFSIZ);
    (void) fprintf(fp, mesg, NextRequest(dpy)-1);
    fputs("\n", fp);
    if (event->error_code == BadImplementation) return 0;
    return 1;
}


/*
 * XmuSimpleErrorHandler - ignore errors for XQueryTree, XGetWindowAttributes,
 * and XGetGeometry; print a message for everything else.  In all case, do
 * not exit.
 */
int
XmuSimpleErrorHandler(Display *dpy, XErrorEvent *errorp)
{
    switch (errorp->request_code) {
      case X_QueryTree:
      case X_GetWindowAttributes:
        if (errorp->error_code == BadWindow) return 0;
        break;
      case X_GetGeometry:
        if (errorp->error_code == BadDrawable) return 0;
        break;
    }
    /* got a "real" X error */
    return XmuPrintDefaultErrorMessage (dpy, errorp, stderr);
}       

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