uname C program

 #include <stdio.h>
 #include <stdlib.h>
 #include <errno.h>
 #include <sys/utsname.h>

int main(void) {

 struct utsname buffer;

 errno = 0;
 if (uname(&buffer) != 0) {
  perror("uname");
  exit(EXIT_FAILURE);
}

 printf("system name = %s\n", buffer.sysname);
 printf("node name   = %s\n", buffer.nodename);
 printf("release     = %s\n", buffer.release);
 printf("version     = %s\n", buffer.version);
 printf("machine     = %s\n", buffer.machine);

 return EXIT_SUCCESS;
}