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UNAME(3)	      DragonFly 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 identi- fying 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 or varsym variable UNAME_s is set, it will override the sysname member. UNAME_r If the environment or varsym variable UNAME_r is set, it will override the release member. UNAME_v If the environment or varsym variable UNAME_v is set, it will override the version member. UNAME_m If the environment or varsym variable UNAME_m is set, it will override the machine member. Environment variables have priority over varsym variables.

ERRORS

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

SEE ALSO

uname(1), varsym(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. DragonFly 4.9 March 1, 2016 DragonFly 4.9

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