uname

UNAME(3)                  BSD Library Functions Manual                  UNAME(3)

NAME
     uname — get system identification

LIBRARY
     Standard C Library (libc, -lc)

SYNOPSIS
     #include <sys/utsname.h>

     int
     uname(struct utsname *name);

DESCRIPTION
     The uname() function stores NUL-terminated strings of information
     identifying the current system into the structure referenced by name.

     The utsname structure is defined in the <sys/utsname.h> header file, and
     contains the following members:

           sysname       Name of the operating system implementation.

           nodename      Network name of this machine.

           release       Release level of the operating system.

           version       Version level of the operating system.

           machine       Machine hardware platform.

RETURN VALUES
     The uname() function returns the value 0 if successful; otherwise the
     value -1 is returned and the global variable errno is set to indicate the
     error.

ENVIRONMENT
     UNAME_s  If the environment variable UNAME_s is set, it will override the
              sysname member.

     UNAME_r  If the environment variable UNAME_r is set, it will override the
              release member.

     UNAME_v  If the environment variable UNAME_v is set, it will override the
              version member.

     UNAME_m  If the environment variable UNAME_m is set, it will override the
              machine member.

ERRORS
     The uname() function may fail and set errno for any of the errors specified
     for the library functions sysctl(3).

SEE ALSO
     uname(1), sysctl(3)

STANDARDS
     The uname() function conforms to IEEE Std 1003.1-1988 (“POSIX.1”).

HISTORY
     The uname() function first appeared in 4.4BSD.

BSD                             December 2, 2005                             BSD