informatin about os

[huskers]

Hi,

Are there any special variables in C which give information about machine name, os, platform etc.

Thanks

 

[keenanbr]

there is a function called 'uname' which will give ypu the info you require

 

[Nosferatu]

Where is that function??? I believe the question was on an ANSII function, not something specific since the need is to know what kind of system you're on. [red]Nosferatu[/red]
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[dchoulette]

Seems to be a POSIX function.
It exists on AIX and Solaris.
So maybe on any UNIXes.
As for windows ... who can say ?

The AIX man page states:

uname(2)                                                           uname(2)

NAME
     uname(), setuname() - get information about computer system; set node
     name (system name)

SYNOPSIS
     #include <sys/utsname.h>

     int uname(struct utsname *name);

     int setuname(const char *name, size_t namelen);

DESCRIPTION
   uname()
     The uname() system call places information identifying the computer
     system in the utsname structure pointed to by name.

     The utsname structure, defined in <sys/utsname.h>, is set up as
     follows:

          #define UTSLEN  9
          #define SNLEN  15

          char sysname[UTSLEN];
          char nodename[UTSLEN];
          char release[UTSLEN];
          char version[UTSLEN];
          char machine[UTSLEN];
          char idnumber[SNLEN];

<skip>
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STANDARDS CONFORMANCE
     uname(): AES, SVID2, SVID3, XPG2, XPG3, XPG4, FIPS 151-2, POSIX.1