Could somebody please explain what cob32api does?
I have the task of migrating a batch cobol system from 32 bit Windows to 64 bit Linux. A large number of programs call 'cob32api' which belongs to Net Express. The Linux equivalent to Net Express is Server Express, but I'm not at all clear on what this particular call actually does. There don't appear to be any parameters required. Sadly, there are also no comments explaining what it's for.
Naturally I get an error when I try to build:
Load error : file 'cob32api'
error code: 173, pc=0, call=1, seg=0 173
Called program file not found in drive/directory
Can anybody help me out here?
Thanks in advance.
OK, I tracked down a colleague who has worked on this stuff and knew what it meant. The call to cob32api is required so that the cobol program in question, as well as any sub-modules, can call Windows APIs. This explains why the corresponding library (cob32api.dll) has no Linux equivalent.
The simple solution to my problem: Remove the call altogether.
I hope this helps anybody who runs into a similar problem.
Thanks for the comments.
Additional information:
The removal of the "cob32api" call had consequences for the sub-modules I mentioned. Ther were a number of calls of the form
CALL WINAPI "windows-function-name" ...
These resulted in later compile errors and therefore needed to be replaced.
Related
I am working on making a pretty trivial change to an old existing pascal source file. I have the source code, but need to generate a new hex file with my changes.
First, I tried compiling with "Embedded Pascal", which is the program used by my predecessor. Unfortunately, it is an unregistered copy and gives the message that the file is too large for the unregistered version. Support for and even the homepage for the project has disappeared (old), so I have no idea how I would register.
I tried a couple other compilers, "Free Pascal" and "Turbo51", and they are both giving similar errors:
Filename.pas (79): Error 36: BEGIN expected.
Linkcode $2E
^
The source code begins with
Linkcode $2E
LinkData $0A // normally 8 - make room for capacitance data
Program Main; Vector LongJmp Startup_Vector; //This inserts the start to the main routine.
uses IntLib;
I'm not well-versed in Pascal or embedded programming, but as I understand it, the Linkcode and LinkData lines are required to set up the RAM as needed. Following the "Const" and "var" declarations are subroutines that indeed start with procedure... begin... end.
I realize that Pascal is a bit out of date, but we are stuck with it and our old micro. Any ideas why previously working source code with trivial changes cannot be compiled? I am willing to consider other compilers, including paid options, if any are available with decent support. I am using Windows 10 x64 processor to compile, and flashing to an Atmel 89C51RC2.
If more source code is needed for diagnosis, please let me know what in particular, as I'll need to change some proprietary information before posting. Thanks!
Statements like linkcode and linkdata are not general, but target and compiler specific. Unless you have the know-how to reengineer to a different compiler, getting the original one is best.
Thanks to all for the information. While I didn't find an exact solution here, your comments were helpful for me to understand just how compiler-specific the Pascal code was.
In the end, I was able to get into my predecessors files and transfer registration, solving the issue for now. As suggested, I think I will port to C in the future to avoid fighting all the unsupported compiler nonsense.
I'm trying to use LabView to operate a ThorLab CS235CU camera. However, so far I haven't had any success using LabView to operate it, despite searching the provided thorlabs and national instruments documentation and google for an answer all week. I started by trying ThorLab's VIs that came with their software, but anytime I run a script it returns the following error:
Error 1386 has occurred at Invoke Node. In the provided "simple image aquisition" VI, this error occurs at 3 locations (steps 2, 3, and 4) before deleting the rest of the script, if run with execution highlighted. National Instruments has 3 suggested fixes on their website: unblocking DLLs manually, which seems unrealistic given I don't know what is causing this error; running LabView as an administrator, which I had been doing from the beginning and didn't help the issue; and creating a configuration file, which I tried but did not work. I put it in C:\ProgramFiles\National Instruments\LabView 2020 as well as C:\ProgramFiles(x86)\National Instruments\LabView 2020, but the error still occurs. I'm very new to using LabView and couldn't begin to explain why this error is occurring, so anyone that can or knows how to help, please do.
It seems that you didn't set up the ThorLabs driver properly one way or another. Often it is the manufacturer's installer that must be run first (with LabVIEW turned off) and eventually you'll find the according driver/dll wrapper VIs (also referred to as LabVIEW-Driver) in some arcane subdirectory like <Program Files>\ThorLabs\<Product>\Drivers\Labview\...
It might make sense to copy that directory to your myProject\drivers\ Folder and the simple image acquisition.vi to something like myProject\examples and work your way from there. Also make sure you're using LabVIEW 32bit since few third-party drivers come in 64bit.
I have a network path that contains hundred of thousands .wav files. When I do the following:
FileBuffer = Dir$("\\MEDIASERVER\*.wav", FileAttribute.Archive)
The line freezes forever. I have literally let it run a day, and it never returns with execution. I then decided to test the symptom with a dir command in DOS. Same symptom.
I then wondered if I would get the same symptom if I added a prefix to the search pattern narrowing my results. I did this in DOS:
DIR 0009*.wav
Worked like a charm. So, armed with this knowledge, I went back to my VB.NET project and applied a similar solution:
FileBuffer = Dir$("\\MEDIASERVER\0009*.wav", FileAttribute.Archive)
Doesn't get stuck, actually does the search. But I was surprised by the first result:
FileBuffer came back with the following value:
003925034541228334146804222014065036AM005020MIF.wav
This does not match the pattern I asked for. Can someone tell me what I am doing wrong? Is there a known bug with DIR$? Is there a way to achieve what I want without enumerating 100% of the files in the network share?
Additional Information if it's relevant:
Developement Machine: Windows 7 Pro, VS 2013 Pro
Network Server: Linux Centos 5.0 (I have the same issue with a network drive running Windows 7 Pro).
Thanks in advance.
Sorry for just posting the question, and already getting the answer. The question about whether or not it worked properly in DOS helped narrow my troubleshooting. I came across a couple of pages on the net stating that DIR will come back with unexpected results. They state that it's because of the 8.3 naming convention. I then decided to see if there was any other constraints I could add to my program. I changed the pattern to:
DIR \\MEDIASERVER\0009*MIF.wav
And now I am getting the expected results. This cannot be because of the 8.3 Naming convention though. It's something else, but at least I got this working.
Thanks for your time.
I'm having troubles registering windows script file. When I'm trying to do so it says "Cannot find the type library for this reference Some.Reference"
Basically, behaviour is very similar to one described in this question Windows Scripting can't find reference but I can't figure out what to use instead of c:\path\to\control.dll.
In my case Some.Reference is Msxml2.FreeThreadedDOMDocument.4.0. so what should I actually do? I tried to use different kinds of msxml.dll, but it didn't seem to help.
Or maybe there are other ways to solve this issue?
One more detail: I managed to register this script on Windows7 but I get described error in Windows Server 2008 sp 2
Hans, thanks for your comment, because what I did is I used this tool
http://www.nirsoft.net/utils/registered_dll_view.html to view registered dlls and I found that the only abailable object I had is Msxml2.FreeThreadedDOMDocument.6.0 so I just changed my script to use this version, and as I can see from your comment it was not the worst decision
I was recently reading an article on the Windows Metafile vulnerability (http://en.wikipedia.org/wiki/Windows_Metafile_vulnerability#Third-party_patch) and I was interested by one of the points made.
A third party patch[9] was released by Ilfak Guilfanov on 31 December 2005 to temporarily disable the vulnerable function call in gdi32.dll.
So this got me thinking as to how Ilfak Guilfanov actually went about disabling the function in gdi32.dll.
My theory got as far as opening dependency walker and finding the function entry point and then analysing that in a Hex editor, however Hex isn't my native language unfortunately.
So would you require some form of expensive software to achieve something like this or would it be a case of a lot of trial and error ?
Note: This isn't intended as a hacking question, but more to understand what I see as a very interesting and clever process
You could open up the dll with your favorite (dis)assembler, find the entrypoint of the function and put a ret assembler instruction to directly return from the function without doing anything else.