/* uname.c: *  * Example of uname(2) : */#include <stdio.h>#include <unistd.h>#include <stdlib.h>#include <errno.h>#include <string.h>#include <sys/utsname.h>intmain(int argc,char **argv) {    int z;    struct utsname u_name;    z = uname(&u_name);    if ( z == -1 ) {        fprintf(stderr,"%s: uname(2)\n",            strerror(errno));        exit(1);    }    printf("   sysname[] = '%s';\n",        u_name.sysname);    printf("  nodename[] = '%s';\n",        u_name.nodename);    printf("   release[] = '%s';\n",        u_name.release);    printf("   version[] = '%s';\n",        u_name.version);    printf("   machine[] = '%s';\n",        u_name.machine);    printf("domainname[] = '%s';\n",        u_name.domainname);    return 0;                    }