#include "apue.h"intmain(void){	char	name[L_tmpnam], line[MAXLINE];	FILE	*fp;	printf("%s\n", tmpnam(NULL));		/* first temp name */	tmpnam(name);						/* second temp name */	printf("%s\n", name);	if ((fp = tmpfile()) == NULL)		/* create temp file */		err_sys("tmpfile error");	fputs("one line of output\n", fp);	/* write to temp file */	rewind(fp);							/* then read it back */	if (fgets(line, sizeof(line), fp) == NULL)		err_sys("fgets error");	fputs(line, stdout);				/* print the line we wrote */	exit(0);}