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How to obtain hardware/system information?
- Thread starter sedawk
- Start date
well, it depends on which platform u are in..
if u are working in a linux/solaris box then just do
man proc
or /proc.. its is a file-system that has all info pertaining
to the system and all the processes.
u can do sum programming on proc file-system.
(personally i wud use sum scripting language to extract the info ;-) )
iam sorry i have no idea abt windows.
Alternatively u can do a snmp walk on the system.. u can try this for remote systems also . but they must be running the snmp agent. u can get all info abt the system, its up-time , services and network info.
if u are working in a linux/solaris box then just do
man proc
or /proc.. its is a file-system that has all info pertaining
to the system and all the processes.
u can do sum programming on proc file-system.
(personally i wud use sum scripting language to extract the info ;-) )
iam sorry i have no idea abt windows.
Alternatively u can do a snmp walk on the system.. u can try this for remote systems also . but they must be running the snmp agent. u can get all info abt the system, its up-time , services and network info.
- Thread starter
- #3
your answer is very funny:
I am saying to get information of computer hardware configuration information, it should be software independent, ie., no matter linux/unix or windows the configuration information should be retrieved. Besides, since the portability of C language, it should be a big deal over different operation system.
I think you are saying the utility function of operation systems. No, I don't mean that. I meant a C function can retract the information.
I am saying to get information of computer hardware configuration information, it should be software independent, ie., no matter linux/unix or windows the configuration information should be retrieved. Besides, since the portability of C language, it should be a big deal over different operation system.
I think you are saying the utility function of operation systems. No, I don't mean that. I meant a C function can retract the information.
Lemme try to give u a "not-so-funny" answer (well atleast acc. 2 me )
as far as my "limited knowledge" of C and English goes
i think you are referring to a C library function..
FYI, these are the headers for the ANSI C lib.
<assert.h> : Diagnostics
<ctype.h> : Character Class Tests
<errno.h> : Error Codes Reported by (Some) Library Functions
<float.h> : Implementation-defined Floating-Point Limits
<limits.h> : Implementation-defined Limits
<locale.h> : Locale-specific Information
<math.h> : Mathematical Functions
<setjmp.h> : Non-local Jumps
<signal.h> : Signals
<stdarg.h> : Variable Argument Lists
<stddef.h> : Definitions of General Use
<stdio.h> : Input and Output
<stdlib.h> : Utility functions
<string.h> : String functions
<time.h> : Time and Date functions
Well using any of the functions in the C library to get the info u require.. the closest i can get is to use system and then based on the OS xtract d info..
if u are looking for a "platform-independent" way to get sys. info in C, I dont think the ANSI C library supports any such feature.
i think that perl and python offers support to get sys. info
but the necessary api/library have to be there
Hope this reply doesnt make u burst into laughter
as far as my "limited knowledge" of C and English goes
i think you are referring to a C library function..
FYI, these are the headers for the ANSI C lib.
<assert.h> : Diagnostics
<ctype.h> : Character Class Tests
<errno.h> : Error Codes Reported by (Some) Library Functions
<float.h> : Implementation-defined Floating-Point Limits
<limits.h> : Implementation-defined Limits
<locale.h> : Locale-specific Information
<math.h> : Mathematical Functions
<setjmp.h> : Non-local Jumps
<signal.h> : Signals
<stdarg.h> : Variable Argument Lists
<stddef.h> : Definitions of General Use
<stdio.h> : Input and Output
<stdlib.h> : Utility functions
<string.h> : String functions
<time.h> : Time and Date functions
Well using any of the functions in the C library to get the info u require.. the closest i can get is to use system and then based on the OS xtract d info..
if u are looking for a "platform-independent" way to get sys. info in C, I dont think the ANSI C library supports any such feature.
i think that perl and python offers support to get sys. info
but the necessary api/library have to be there
Hope this reply doesnt make u burst into laughter
lionelhill
Technical User
This question always pops up at about this time of year. I assume someone sets it in a course. There are demos on how to get processor information in the freebie demo section on the installation disks for almost any language.
ANSI C cannot guaruntee to give you information such as COM ports, because ANSI C has to work for any computer, whether or not it actually has anything describable as a port. In fact it wouldn't be sensible even to put a "name of processor" function in ANSI C, because the language should be processor independant, and not all processors will provide a way to tell what they are. The methods of determining what processor you have in an IBM PC prior to pentium rely on devious tricks, because the processor ID op-code wasn't added until pentium. I'd imagine the situation is similar in other systems.
ANSI C cannot guaruntee to give you information such as COM ports, because ANSI C has to work for any computer, whether or not it actually has anything describable as a port. In fact it wouldn't be sensible even to put a "name of processor" function in ANSI C, because the language should be processor independant, and not all processors will provide a way to tell what they are. The methods of determining what processor you have in an IBM PC prior to pentium rely on devious tricks, because the processor ID op-code wasn't added until pentium. I'd imagine the situation is similar in other systems.
- Thread starter
- #6
I recall long time ago, an C program(ANSI C) was using <dos.h> and some int21h(not sure the interruption number) to extract system information successfully. So I am pretty sure ANSI C can do this job successfully. The only problem is I couldn't remember how it was written. And it took me a long time to search the references.
I think someone here had experience in doing this with C.
I think someone here had experience in doing this with C.
Not that it matters since this forum isn't about ansi-c
exclusively.
I don't know anyone here who is going to pull magic
tricks with dos.h and inline assembly for you.
Also I thought you wanted this to be portable?
Not getting there with dos.h.
Take a look at the source code for hwinfo(linux),
or a project like cpu-z for windows.
Better yet take a gander at some of the opensource
alternative bios code(open bios, linux bios), for
an idea of how to query hardware and write platform
agnostic hardware accessing code.
exclusively.
I don't know anyone here who is going to pull magic
tricks with dos.h and inline assembly for you.
Also I thought you wanted this to be portable?
Not getting there with dos.h.
Take a look at the source code for hwinfo(linux),
or a project like cpu-z for windows.
Better yet take a gander at some of the opensource
alternative bios code(open bios, linux bios), for
an idea of how to query hardware and write platform
agnostic hardware accessing code.
![[surprise]](/data/assets/smilies/surprise.gif "[surprise] [surprise]")
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