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UNAME(3) 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. Equivalent to the sysctl(7) kern.ostype variable. nodename Network name of this machine. Equivalent to the sysctl(7) kern.hostname variable. release Release level of the operating system. Equivalent to the sysctl(7) kern.osrelease variable. version Version level of the operating system. Equivalent to the sysctl(7) kern.version variable, except that very long values are truncated, and newlines are converted to spaces. machine Machine hardware platform. Equivalent to the sysctl(7) hw.machine variable. 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 Std 1003.1-1990 ("POSIX.1"). HISTORY The uname function first appeared in 4.4BSD. NetBSD 8.0 June 14, 2014 NetBSD 8.0