1 /* 2 * CDDL HEADER START 3 * 4 * The contents of this file are subject to the terms of the 5 * Common Development and Distribution License, Version 1.0 only 6 * (the "License"). You may not use this file except in compliance 7 * with the License. 8 * 9 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE 10 * or http://www.opensolaris.org/os/licensing. 11 * See the License for the specific language governing permissions 12 * and limitations under the License. 13 * 14 * When distributing Covered Code, include this CDDL HEADER in each 15 * file and include the License file at usr/src/OPENSOLARIS.LICENSE. 16 * If applicable, add the following below this CDDL HEADER, with the 17 * fields enclosed by brackets "[]" replaced with your own identifying 18 * information: Portions Copyright [yyyy] [name of copyright owner] 19 * 20 * CDDL HEADER END 21 */ 22 /* 23 * Copyright 2005 Sun Microsystems, Inc. All rights reserved. 24 * Use is subject to license terms. 25 */ 26 27 #pragma ident "%Z%%M% %I% %E% SMI" 28 29 /* Copyright (c) 1988 AT&T */ 30 /* All Rights Reserved */ 31 32 33 #pragma weak tmpnam = _tmpnam 34 #pragma weak tmpnam_r = _tmpnam_r 35 36 #include "synonyms.h" 37 #include "mtlib.h" 38 #include <sys/types.h> 39 #include <stdio.h> 40 #include <string.h> 41 #include <stdlib.h> 42 #include <errno.h> 43 #include <thread.h> 44 #include <synch.h> 45 #include "tsd.h" 46 47 static char seed[] = { 'a', 'a', 'a', '\0' }; 48 49 static mutex_t seed_lk = DEFAULTMUTEX; 50 51 char * 52 tmpnam_r(char *s) 53 { 54 char *p = s, *q; 55 56 if (!s) 57 return (NULL); 58 59 (void) strcpy(p, P_tmpdir); 60 lmutex_lock(&seed_lk); 61 (void) strcat(p, seed); 62 (void) strcat(p, "XXXXXX"); 63 64 q = seed; 65 while (*q == 'z') 66 *q++ = 'a'; 67 if (*q != '\0') 68 ++*q; 69 lmutex_unlock(&seed_lk); 70 (void) mktemp(p); 71 return (p); 72 } 73 74 char * 75 tmpnam(char *s) 76 { 77 if (s == NULL) 78 s = tsdalloc(_T_TMPNAM, L_tmpnam, NULL); 79 return (tmpnam_r(s)); 80 } 81