1 /*- 2 * Copyright (c) 1990, 1993 3 * The Regents of the University of California. All rights reserved. 4 * 5 * This code is derived from software contributed to Berkeley by 6 * Chris Torek. 7 * 8 * %sccs.include.redist.c% 9 */ 10 11 #if defined(LIBC_SCCS) && !defined(lint) 12 static char sccsid[] = "@(#)tmpnam.c 8.2 (Berkeley) 11/16/93"; 13 #endif /* LIBC_SCCS and not lint */ 14 15 #include <unistd.h> 16 #include <stdio.h> 17 18 char * 19 tmpnam(s) 20 char *s; 21 { 22 static unsigned long tmpcount; 23 static char buf[L_tmpnam]; 24 25 if (s == NULL) 26 s = buf; 27 (void)snprintf(s, L_tmpnam, "%s/tmp.%lu.XXXXXX", P_tmpdir, tmpcount); 28 ++tmpcount; 29 return (mktemp(s)); 30 } 31