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annotate src/loadso/beos/SDL_sysloadso.c @ 1614:6162b8d921ce

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Date: Wed, 29 Mar 2006 17:26:55 +0200 CEST From: "Fran���is Revol" Subject: [SDL] BeOS port fix: PrintScreen key crashing It seems the latest SDL crashes when someone hits the PrtScrn key in ZETA (BeOS R6), somewhere it gets a negative value as key code (or a big unsigned maybe ?), and uses it as an index in the keysym table... I'll investigate the cause for the negative value, but it's always better to check for bounds correctly when indexing a table. The attached diff fixes it. Fran���is Revol -- Software Architect yellowTAB GmbH
author Sam Lantinga <slouken@libsdl.org>
date Fri, 31 Mar 2006 06:16:20 +0000
parents d910939febfa
children 92947e3a18db
rev   line source
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1 /*
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2 SDL - Simple DirectMedia Layer
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3 Copyright (C) 1997-2006 Sam Lantinga
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4
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5 This library is free software; you can redistribute it and/or
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6 modify it under the terms of the GNU Lesser General Public
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7 License as published by the Free Software Foundation; either
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8 version 2.1 of the License, or (at your option) any later version.
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9
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10 This library is distributed in the hope that it will be useful,
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11 but WITHOUT ANY WARRANTY; without even the implied warranty of
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12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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13 Lesser General Public License for more details.
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14
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15 You should have received a copy of the GNU Lesser General Public
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16 License along with this library; if not, write to the Free Software
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17 Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
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18
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19 Sam Lantinga
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20 slouken@libsdl.org
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21 */
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22 #include "SDL_config.h"
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23
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24 /* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */
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25 /* System dependent library loading routines */
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26
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27 #include <stdio.h>
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28 #include <be/kernel/image.h>
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29
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30 #include "SDL_loadso.h"
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31
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32 void *SDL_LoadObject(const char *sofile)
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33 {
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34 void *handle = NULL;
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35 const char *loaderror = "Unknown error";
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36 image_id library_id = load_add_on(sofile);
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37 if ( library_id == B_ERROR ) {
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38 loaderror = "BeOS error";
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39 } else {
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40 handle = (void *)(library_id);
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41 }
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42
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43 if ( handle == NULL ) {
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44 SDL_SetError("Failed loading %s: %s", sofile, loaderror);
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45 }
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46 return(handle);
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47 }
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48
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49 void *SDL_LoadFunction(void *handle, const char *name)
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50 {
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51 void *symbol = NULL;
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52 const char *loaderror = "Unknown error";
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53 image_id library_id = (image_id)handle;
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54 if ( get_image_symbol(library_id,
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55 name, B_SYMBOL_TYPE_TEXT, &symbol) != B_NO_ERROR ) {
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56 loaderror = "Symbol not found";
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57 }
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58
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59 if ( symbol == NULL ) {
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60 SDL_SetError("Failed loading %s: %s", name, loaderror);
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61 }
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62 return(symbol);
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63 }
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64
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65 void SDL_UnloadObject(void *handle)
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66 {
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67 image_id library_id;
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68 if ( handle != NULL ) {
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69 library_id = (image_id)handle;
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70 unload_add_on(library_id);
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71 }
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72 }
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73