UNAME(2)UNAME(2)NAMEuname - get name of current operating system
SYNOPSIS
#include <sys/utsname.h>
int uname(struct utsname *name);
DESCRIPTION
The uname() function stores information identifying the current operat‐
ing system in the structure pointed to by name.
The uname() function uses the utsname structure, defined in
<sys/utsname.h>, whose members include:
char sysname[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 operating system in the character array sysname. Similarly,
the nodename member contains the name by which the system is known on a
communications network. The release and version members further iden‐
tify the operating system. The machine member contains a standard name
that identifies the hardware on which the operating system is running.
RETURN VALUES
Upon successful completion, a non-negative value is returned. Other‐
wise, −1 is returned and errno is set to indicate the error.
ERRORS
The uname() function will fail if:
EFAULT
The name argument points to an illegal address.
ATTRIBUTES
See attributes(5) for descriptions of the following attributes:
┌────────────────────┬───────────────────┐
│ ATTRIBUTE TYPE │ ATTRIBUTE VALUE │
├────────────────────┼───────────────────┤
│Interface Stability │ Standard │
├────────────────────┼───────────────────┤
│MT-Level │ Async-Signal-Safe │
└────────────────────┴───────────────────┘
SEE ALSOuname(1), sysinfo(2), sysconf(3C), attributes(5), standards(5)
Jul 21, 1999 UNAME(2)
