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uname(3) [bsd man page]

UNAME(3)						     Library Functions Manual							  UNAME(3)

NAME
uname - get system identification SYNOPSIS
#include <sys/utsname.h> int uname(name) 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
If uname is successful, 0 is returned, otherwise, -1 is returned and errno is set appropriately. 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 Std1003.1-88 (``POSIX''). HISTORY
The uname function first appeared in 4.4BSD. 4th Berkeley Distribution February 4, 1995 UNAME(3)

Check Out this Related Man Page

uname(2)							System Calls Manual							  uname(2)

NAME
uname - Gets the name of the current system SYNOPSIS
#include <sys/utsname.h> int uname( struct utsname *name); STANDARDS
Interfaces documented on this reference page conform to industry standards as follows: uname(): XSH5.0 Refer to the standards(5) reference page for more information about industry standards and associated tags. PARAMETERS
Points to a utsname structure. DESCRIPTION
The uname() function stores information identifying the current system in the structure pointed to by the name parameter. The uname() function uses the utsname structure, which is defined in the sys/utsname.h file and contains the following members: char sys- name[_SYS_NMLN]; char nodename[_SYS_NMLN]; char release[_SYS_NMLN]; char version[_SYS_NMLN]; char machine[_SYS_NMLN]; The uname() function returns a null-terminated character string naming the current system in the sysname character array. The nodename array contains the name that the system is known by on a communications network. The release and version arrays further identify the sys- tem. The machine array identifies the CPU hardware being used. RETURN VALUES
Upon successful completion, a nonnegative value is returned. Otherwise, -1 is returned and errno is set to indicate the error. ERRORS
If the uname() function fails, errno may be set to the following value: [Tru64 UNIX] The name parameter points outside of the process address space. RELATED INFORMATION
Commands: uname(1) Standards: standards(5) delim off uname(2)
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