Ros-dev

ros-dev@reactos.org

1 participants
5790 discussions

by Myria

Should ReactOS copy unnecessary restrictions that Windows has? The example I'm thinking of is NtSetLdtEntries. In Windows NT (and currently ReactOS as well), this function will not let you create an LDT entry whose limit is above the user/kernel barrier. This restriction sounds like it was made with security in mind, but it doesn't affect security. The processor's page table will already block access to kernel memory no matter what selector you use. After all, the default user CS and DS already have a limit of FFFFFFFF. Should such a problem be fixed? Fireball said "no, unless some 3rd party app or driver depends on them" when I asked about whether such restrictions should be copied. Pretty much the only thing using NtSetLdtEntries is NTVDM, and this restriction already causes some DOS programs to break that would otherwise work. (Such programs are usually setting selectors that wrap the address space.) Melissa

19 years, 2 months

ULONG vs. SIZE_T

by Myria

I've noticed that in the ReactOS source code, there are many places where a parameter or structure is ULONG when it should really be SIZE_T. Using ULONG instead of SIZE_T is not portable. It will be difficult to port ReactOS to x64 and Itanium in the future because of this. I think the project should stop the bleeding by requiring all new code to make proper use of ULONG versus SIZE_T. This does mean going against the documentation of native syscalls on the Internet, but it must be done sometime. Of course, I'm not really part of the project... Melissa

19 years, 2 months

X-Chat 2

by James Tabor

Hi all Could be all based on wine patches, I can no longer get xchat 2 and the new one to run. I noticed it can not find the lib directory in the launch directory. Wine has this problem too. Also when installing the new X-Chat 2 from http://www.silverex.org/download/xchat-2.6.2-1.exe, It installs the Font to C:\ReactOS\Fonts not C:\ReactOS\media\fonts. I had to create C:\ReactOS\Fonts so I can have a clean install. I tested my GGO patch and the SVN and the result are the same. Okay, wine does this too, I tested it. (dll/ntdll/ldr/utils.c:2019) Failed to create or open dll section of 'libgtk-win 32-2.0-0.dll' (Status c0000135) (dll/ntdll/ldr/utils.c:1347) failed to load libgtk-win32-2.0-0.dll (dll/ntdll/ldr/utils.c:1812) failed to load libgtk-win32-2.0-0.dll (dll/ntdll/ldr/utils.c:1934) LdrFixupImports() failed for xchat.EXE (dll/ntdll/ldr/startup.c:485) Failed to initialize image Then do it from lib, "..\xchat" (dll/ntdll/ldr/utils.c:2019) Failed to create or open dll section of 'pango-1.8.2/lib/pango/1.4.0/modules/pango-basic-win32.dll"' (Status c0000135) You will get a popup. This has been a problem for years! Thanks, James

19 years, 2 months

Break in 22232

by James Tabor

Hi, I'm getting this with Mozilla, Firefox and SeaMonkey. KeBugCheck at ntoskrnl/cm/regobj.c:528 A problem has been detected and ReactOS has been shut down to prevent damage to your computer. Technical information: *** STOP: 0x00000051 (0x00000000,0x00000000,0x00000000,0x00000000) Frames: <ntoskrnl.exe:1d50 (ntoskrnl/ke/bug.c:493 (KeBugCheckEx))> <ntoskrnl.exe:1d67 (ntoskrnl/ke/bug.c:514 (KeBugCheck))> <ntoskrnl.exe:129c6 (ntoskrnl/cm/regobj.c:528 (CmiObjectDelete))> <ntoskrnl.exe:52c6b (ntoskrnl/ob/oblife.c:151 (ObpDeleteObject))> <ntoskrnl.exe:1290c (ntoskrnl/cm/regobj.c:523 (CmiObjectDelete))> <ntoskrnl.exe:52c6b (ntoskrnl/ob/oblife.c:151 (ObpDeleteObject))> <ntoskrnl.exe:50f4c (ntoskrnl/ob/obhandle.c:153 (ObpDecrementHandleCount))> <ntoskrnl.exe:510b0 (ntoskrnl/ob/obhandle.c:244 (ObpDeleteHandle))> <ntoskrnl.exe:52166 (ntoskrnl/ob/obhandle.c:1125 (NtClose))> <ntoskrnl.exe:66527 (ntoskrnl/ke/i386/trap.s:306 (KiFastCallEntry))> <ADVAPI32.dll:7dd9 (dll/win32/advapi32/reg/reg.c:1178 (RegDeleteKeyA))> All three are the same, James

19 years, 2 months

0.3.0 RC1 problems

by Brandon Turner

I cant seem to make a stable qemu install for the release, wmare works fine though. On the first boot to the installed desktop, it just shuts down after about 1 sec. I usually see the device wizard pop up for a sec and then it just turns off. Anyone else having thse problems? Any hints? Brandon

19 years, 2 months

Patches: A couple of Spelling Fixes

by Neil Blackburn

Hi! I submitted a couple of patches to Bugzilla Bug 1555. Can someone please commit the patches for me. Thanks.

19 years, 2 months

Re: [ros-dev] [ros-diffs] [greatlrd] 22195: make malloc, calloc and some other function return NULL if size is 0

by Royce Mitchell III

greatlrd(a)svn.reactos.org wrote: >@@ -52,6 +55,9 @@ > */ > void* calloc(size_t _nmemb, size_t _size) > { >+ if ( _size == 0) >+ return NULL; >+ > return HeapAlloc(hHeap, HEAP_ZERO_MEMORY, ROUND_SIZE(_nmemb*_size) ); > } > > What if _nmemb is zero? > >@@ -60,6 +66,9 @@ > */ > void* realloc(void* _ptr, size_t _size) > { >+ if ( _size == 0) >+ return NULL; >+ > if (!_ptr) return malloc(_size); > if (_size) return HeapReAlloc(hHeap, 0, _ptr, ROUND_SIZE(_size)); > free(_ptr); >@@ -71,6 +80,9 @@ > */ > > umm... shouldn't we call free() if we're going to return NULL because size is 0? Also, the free() at the bottom is never called now. > void* _expand(void* _ptr, size_t _size) > { >+ if ( _size == 0) >+ return NULL; >+ > return HeapReAlloc(hHeap, HEAP_REALLOC_IN_PLACE_ONLY, _ptr, ROUND_SIZE(_size)); > } > > Again, shouldn't we free the existing buffer if we're returning NULL because size is 0?

19 years, 2 months

Screenshot of 22170

by James Tabor

Hi, I only installed win32k.sys not the rest. Here is a funny pic. Thanks, James

19 years, 2 months

ROS harware

by David Johnson

Do we have a target harware spec? Or will ROS be for general harware like regular Windows? -- Dave Johnson http://www.davefilms.us DaveFILMS(r) http://thevoicezone.us The Voice Zone™ Voice Talent Writer, Producer, Director Independent Audio Theater Producer http://www.perditioncity.us voiceoverjobs(a)gmail.com Member of the Darker Projects team. http://www.darkerprojects.com ShadoeWorld.com Correspondent ---------------------------------------------------------- Tired of a proprietary Windows on your computer ? Use free ReactOS instead ( http://www.reactos.org )

19 years, 2 months

0.3.0 RC1

by WaxDragon

0.3.0 is now RC1. Hopefully Brandon will have time to put up RC1 on SF soon, but those inclined can check out a copy now. While I will allow a wallpaper to be added before release, anything else needs to be a bugfix against a bug in Bugzilla. WD -- ReactOS is a hub, follow the spokes and you'll immediately find absolutely everything you need to know about Windows. ReactOS is not just software, it's people. kjk_hyperion

19 years, 2 months

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